CMA broken in next-20120926

PATCH In review Thierry Reding 8 participants 37 messages Sep 27, 2012 – Oct 9, 2012

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Thierry Reding

author

2012-09-27 11:29 UTC #0 lore raw

Hi Marek,

any idea why CMA might be broken in next-20120926. I see that there haven't been any major changes to CMA itself, but there's been quite a bit of restructuring of various memory allocation bits lately. I wasn't able to track the problem down, though.

What I see is this during boot (with CMA_DEBUG enabled):

[    0.266904] cma: dma_alloc_from_contiguous(cma db474f80, count 64, align 6)
[    0.284469] cma: dma_alloc_from_contiguous(): memory range at c09d7000 is busy, retrying
[    0.293648] cma: dma_alloc_from_contiguous(): memory range at c09d7800 is busy, retrying
...
[    2.648619] DMA: failed to allocate 256 KiB pool for atomic coherent allocation
...
[    4.196193] WARNING: at /home/thierry.reding/src/kernel/linux-ipmp.git/arch/arm/mm/dma-mapping.c:485 __alloc_from_pool+0xdc/0x110()
[    4.207988] coherent pool not initialised!

So the pool isn't getting initialized properly because CMA can't get at the memory. Do you have any hints as to what might be going on? If it's any help, I started seeing this with next-20120926 and it is in today's next as well.

Thierry

Marek Szyprowski

2012-09-27 15:59 UTC #1 lore raw

Hello,

Quoted 17 lines · Thierry Reding

any idea why CMA might be broken in next-20120926. I see that there haven't been any major changes to CMA itself, but there's been quite a bit of restructuring of various memory allocation bits lately. I wasn't able to track the problem down, though.
What I see is this during boot (with CMA_DEBUG enabled):
[    0.266904] cma: dma_alloc_from_contiguous(cma db474f80, count 64, align 6)
[    0.284469] cma: dma_alloc_from_contiguous(): memory range at c09d7000 is busy, retrying
[    0.293648] cma: dma_alloc_from_contiguous(): memory range at c09d7800 is busy, retrying
...
[    2.648619] DMA: failed to allocate 256 KiB pool for atomic coherent allocation
...
[    4.196193] WARNING: at /home/thierry.reding/src/kernel/linux-ipmp.git/arch/arm/mm/dma-
mapping.c:485 __alloc_from_pool+0xdc/0x110()
[    4.207988] coherent pool not initialised!

Quoted 4 lines

So the pool isn't getting initialized properly because CMA can't get at the memory. Do you have any hints as to what might be going on? If it's any help, I started seeing this with next-20120926 and it is in today's next as well.

Thanks for the report, I will check this issue asap.

Best regards

Signature · 2 lines

Marek Szyprowski
Samsung Poland R&D Center

Mark Brown

2012-09-27 17:50 UTC #2 lore raw

Quoted 19 lines · Marek Szyprowski

Quoted 16 lines · Thierry Reding
any idea why CMA might be broken in next-20120926. I see that there haven't been any major changes to CMA itself, but there's been quite a bit of restructuring of various memory allocation bits lately. I wasn't able to track the problem down, though.
What I see is this during boot (with CMA_DEBUG enabled):
[    0.266904] cma: dma_alloc_from_contiguous(cma db474f80, count 64, align 6)
[    0.284469] cma: dma_alloc_from_contiguous(): memory range at c09d7000 is busy, retrying
[    0.293648] cma: dma_alloc_from_contiguous(): memory range at c09d7800 is busy, retrying
...
[    2.648619] DMA: failed to allocate 256 KiB pool for atomic coherent allocation
...
[    4.196193] WARNING: at /home/thierry.reding/src/kernel/linux-ipmp.git/arch/arm/mm/dma-
mapping.c:485 __alloc_from_pool+0xdc/0x110()
[    4.207988] coherent pool not initialised!

Quoted 6 lines

Quoted 4 lines
So the pool isn't getting initialized properly because CMA can't get at the memory. Do you have any hints as to what might be going on? If it's any help, I started seeing this with next-20120926 and it is in today's next as well.
Thanks for the report, I will check this issue asap.

Myself and Peter have seen the same thing, though neither of us drilled down enough to make a sensible report.

Andrew Morton

maintainer

2012-09-27 22:12 UTC #3 lore raw

In reply to Thierry Reding

Quoted 18 lines · On Thu, 27 Sep 2012 13:29:11 +0200 Thierry Reding…

Hi Marek,
any idea why CMA might be broken in next-20120926. I see that there haven't been any major changes to CMA itself, but there's been quite a bit of restructuring of various memory allocation bits lately. I wasn't able to track the problem down, though.
What I see is this during boot (with CMA_DEBUG enabled):
[    0.266904] cma: dma_alloc_from_contiguous(cma db474f80, count 64, align 6)
[    0.284469] cma: dma_alloc_from_contiguous(): memory range at c09d7000 is busy, retrying
[    0.293648] cma: dma_alloc_from_contiguous(): memory range at c09d7800 is busy, retrying
...
[    2.648619] DMA: failed to allocate 256 KiB pool for atomic coherent allocation
...
[    4.196193] WARNING: at /home/thierry.reding/src/kernel/linux-ipmp.git/arch/arm/mm/dma-mapping.c:485 __alloc_from_pool+0xdc/0x110()
[    4.207988] coherent pool not initialised!

Quoted 5 lines

So the pool isn't getting initialized properly because CMA can't get at the memory. Do you have any hints as to what might be going on? If it's any help, I started seeing this with next-20120926 and it is in today's next as well.

Bart and Minchan have made recent changes to CMA. Let us cc them.

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Minchan Kim

2012-09-28 05:40 UTC #4 lore raw

Quoted 21 lines · Andrew Morton

Quoted 18 lines · On Thu, 27 Sep 2012 13:29:11 +0200 Thierry Reding…
Hi Marek,
any idea why CMA might be broken in next-20120926. I see that there haven't been any major changes to CMA itself, but there's been quite a bit of restructuring of various memory allocation bits lately. I wasn't able to track the problem down, though.
What I see is this during boot (with CMA_DEBUG enabled):
[    0.266904] cma: dma_alloc_from_contiguous(cma db474f80, count 64, align 6)
[    0.284469] cma: dma_alloc_from_contiguous(): memory range at c09d7000 is busy, retrying
[    0.293648] cma: dma_alloc_from_contiguous(): memory range at c09d7800 is busy, retrying
...
[    2.648619] DMA: failed to allocate 256 KiB pool for atomic coherent allocation
...
[    4.196193] WARNING: at /home/thierry.reding/src/kernel/linux-ipmp.git/arch/arm/mm/dma-mapping.c:485 __alloc_from_pool+0xdc/0x110()
[    4.207988] coherent pool not initialised!

Quoted 7 lines

Quoted 5 lines
So the pool isn't getting initialized properly because CMA can't get at the memory. Do you have any hints as to what might be going on? If it's any help, I started seeing this with next-20120926 and it is in today's next as well.
Bart and Minchan have made recent changes to CMA. Let us cc them.

Hi all,

I have no time now so I look over the problem during short time so I mighte be wrong. Even I should leave the office soon and Korea will have long vacation from now on so I will be off by next week. So it's hard to reach on me.

I hope this patch fixes the bug. If this patch fixes the problem but has some problem about description or someone has better idea, feel free to modify and resend to akpm, Please.

Thierry, Could you test below patch?

Thierry Reding

author Tested-by

2012-09-28 06:11 UTC #5 lore raw

Quoted 53 lines · Minchan Kim

Quoted 21 lines · Andrew Morton
Quoted 18 lines · On Thu, 27 Sep 2012 13:29:11 +0200 Thierry Reding…
Hi Marek,
any idea why CMA might be broken in next-20120926. I see that there haven't been any major changes to CMA itself, but there's been quite a bit of restructuring of various memory allocation bits lately. I wasn't able to track the problem down, though.
What I see is this during boot (with CMA_DEBUG enabled):
[    0.266904] cma: dma_alloc_from_contiguous(cma db474f80, count 64, align 6)
[    0.284469] cma: dma_alloc_from_contiguous(): memory range at c09d7000 is busy, retrying
[    0.293648] cma: dma_alloc_from_contiguous(): memory range at c09d7800 is busy, retrying
...
[    2.648619] DMA: failed to allocate 256 KiB pool for atomic coherent allocation
...
[    4.196193] WARNING: at /home/thierry.reding/src/kernel/linux-ipmp.git/arch/arm/mm/dma-mapping.c:485 __alloc_from_pool+0xdc/0x110()
[    4.207988] coherent pool not initialised!
Quoted 7 lines
Quoted 5 lines
So the pool isn't getting initialized properly because CMA can't get at the memory. Do you have any hints as to what might be going on? If it's any help, I started seeing this with next-20120926 and it is in today's next as well.
Bart and Minchan have made recent changes to CMA. Let us cc them.
Hi all,
I have no time now so I look over the problem during short time so I mighte be wrong. Even I should leave the office soon and Korea will have long vacation from now on so I will be off by next week. So it's hard to reach on me.
I hope this patch fixes the bug. If this patch fixes the problem but has some problem about description or someone has better idea, feel free to modify and resend to akpm, Please.
Thierry, Could you test below patch?
Quoted 1 line
From 24a547855fa2bd4212a779cc73997837148310b3 Mon Sep 17 00:00:00 2001
From: Minchan Kim <[email protected]>
Date: Fri, 28 Sep 2012 14:28:32 +0900
Subject: [PATCH] revert mm: compaction: iron out isolate_freepages_block()
and isolate_freepages_range()
[1] made bug on CMA.
The nr_scanned should be never equal to total_isolated for successful CMA. This patch reverts part of the patch.

Quoted 7 lines

[1] mm: compaction: iron out isolate_freepages_block() and isolate_freepages_range()
Cc Mel Gorman <[email protected]>
Signed-off-by Minchan Kim <[email protected]>
---
 mm/compaction.c |   29 ++++++++++++++++-------------
 1 file changed, 16 insertions(+), 13 deletions(-)

With that patch applied I see this now:

[    0.255177] DMA: preallocated 256 KiB pool for atomic coherent allocations

so this fixes the bug for me.

Tested-by Thierry Reding <[email protected]>

Peter Ujfalusi

Tested-by

2012-09-28 07:43 UTC #6 lore raw

In reply to Minchan Kim

Quoted 11 lines · Minchan Kim

From 24a547855fa2bd4212a779cc73997837148310b3 Mon Sep 17 00:00:00 2001
From: Minchan Kim <[email protected]>
Date: Fri, 28 Sep 2012 14:28:32 +0900
Subject: [PATCH] revert mm: compaction: iron out isolate_freepages_block()
and isolate_freepages_range()
[1] made bug on CMA.
The nr_scanned should be never equal to total_isolated for successful CMA. This patch reverts part of the patch.
[1] mm: compaction: iron out isolate_freepages_block() and isolate_freepages_range()

With this patch applied on top of today's linux-next CMA enabled kernel works fine on OMAP platforms (without the patch audio was not working because dma_alloc_writecombine() was failing, probably other things were broken as well). Thank you for the quick fix!

Tested-by Peter Ujfalusi <[email protected]>

Quoted 74 lines

Cc Mel Gorman <[email protected]>

Signed-off-by Minchan Kim <[email protected]>

---
 mm/compaction.c |   29 ++++++++++++++++-------------
 1 file changed, 16 insertions(+), 13 deletions(-)

mm/compaction.c +16 ~~-13~~

index 5037399..7721197 100644
@@ -269,13 +269,14 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
 		int isolated, i;
 		struct page *page = cursor;
 
-		nr_scanned++;
 		if (!pfn_valid_within(blockpfn))
-			continue;
+			goto strict_check;
+		nr_scanned++;
+
 		if (!valid_page)
 			valid_page = page;
 		if (!PageBuddy(page))
-			continue;
+			goto strict_check;
 
 		/*
 		 * The zone lock must be held to isolate freepages.

@@ -296,12 +297,12 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
 
 		/* Recheck this is a buddy page under lock */
 		if (!PageBuddy(page))
-			continue;
+			goto strict_check;
 
 		/* Found a free page, break it into order-0 pages */
 		isolated = split_free_page(page);
 		if (!isolated && strict)
-			break;
+			goto strict_check;
 		total_isolated += isolated;
 		for (i = 0; i < isolated; i++) {
 			list_add(&page->lru, freelist);

@@ -313,18 +314,20 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
 			blockpfn += isolated - 1;
 			cursor += isolated - 1;
 		}
+
+		continue;
+
+strict_check:
+		/* Abort isolation if the caller requested strict isolation */
+		if (strict) {
+			total_isolated = 0;
+			goto out;
+		}
 	}
 
 	trace_mm_compaction_isolate_freepages(nr_scanned, total_isolated);
 
-	/*
-	 * If strict isolation is requested by CMA then check that all the
-	 * pages scanned were isolated. If there were any failures, 0 is
-	 * returned and CMA will fail.
-	 */
-	if (strict && nr_scanned != total_isolated)
-		total_isolated = 0;
-
+out:
 	if (locked)
 		spin_unlock_irqrestore(&cc->zone->lock, flags);

Signature · 7 lines

Peter

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Mel Gorman

2012-09-28 07:56 UTC #7 lore raw

In reply to Minchan Kim

Quoted 49 lines · Minchan Kim

Quoted 21 lines · Andrew Morton
Quoted 18 lines · On Thu, 27 Sep 2012 13:29:11 +0200 Thierry Reding…
Hi Marek,
any idea why CMA might be broken in next-20120926. I see that there haven't been any major changes to CMA itself, but there's been quite a bit of restructuring of various memory allocation bits lately. I wasn't able to track the problem down, though.
What I see is this during boot (with CMA_DEBUG enabled):
[    0.266904] cma: dma_alloc_from_contiguous(cma db474f80, count 64, align 6)
[    0.284469] cma: dma_alloc_from_contiguous(): memory range at c09d7000 is busy, retrying
[    0.293648] cma: dma_alloc_from_contiguous(): memory range at c09d7800 is busy, retrying
...
[    2.648619] DMA: failed to allocate 256 KiB pool for atomic coherent allocation
...
[    4.196193] WARNING: at /home/thierry.reding/src/kernel/linux-ipmp.git/arch/arm/mm/dma-mapping.c:485 __alloc_from_pool+0xdc/0x110()
[    4.207988] coherent pool not initialised!
Quoted 7 lines
Quoted 5 lines
So the pool isn't getting initialized properly because CMA can't get at the memory. Do you have any hints as to what might be going on? If it's any help, I started seeing this with next-20120926 and it is in today's next as well.
Bart and Minchan have made recent changes to CMA. Let us cc them.
Hi all,
I have no time now so I look over the problem during short time so I mighte be wrong. Even I should leave the office soon and Korea will have long vacation from now on so I will be off by next week. So it's hard to reach on me.
I hope this patch fixes the bug. If this patch fixes the problem but has some problem about description or someone has better idea, feel free to modify and resend to akpm, Please.
Thierry, Could you test below patch?
From 24a547855fa2bd4212a779cc73997837148310b3 Mon Sep 17 00:00:00 2001
From: Minchan Kim <[email protected]>
Date: Fri, 28 Sep 2012 14:28:32 +0900
Subject: [PATCH] revert mm: compaction: iron out isolate_freepages_block()
and isolate_freepages_range()

Quoted 4 lines

[1] made bug on CMA.
The nr_scanned should be never equal to total_isolated for successful CMA. This patch reverts part of the patch.

Why should nr_scanned never be equal to total_isolated for CMA?

Reverting the patch reintroduces Andrew's complaint that this function was "straggly" and getting a bit out of control so I'd much prefer to understand why this situation is not true and fix that.

Signature · 8 lines

Mel Gorman
SUSE Labs

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Mel Gorman

2012-09-28 08:09 UTC #8 lore raw

Quoted 50 lines · Mel Gorman

Quoted 49 lines · Minchan Kim
Quoted 21 lines · Andrew Morton
Quoted 18 lines · On Thu, 27 Sep 2012 13:29:11 +0200 Thierry Reding…
Hi Marek,
any idea why CMA might be broken in next-20120926. I see that there haven't been any major changes to CMA itself, but there's been quite a bit of restructuring of various memory allocation bits lately. I wasn't able to track the problem down, though.
What I see is this during boot (with CMA_DEBUG enabled):
[    0.266904] cma: dma_alloc_from_contiguous(cma db474f80, count 64, align 6)
[    0.284469] cma: dma_alloc_from_contiguous(): memory range at c09d7000 is busy, retrying
[    0.293648] cma: dma_alloc_from_contiguous(): memory range at c09d7800 is busy, retrying
...
[    2.648619] DMA: failed to allocate 256 KiB pool for atomic coherent allocation
...
[    4.196193] WARNING: at /home/thierry.reding/src/kernel/linux-ipmp.git/arch/arm/mm/dma-mapping.c:485 __alloc_from_pool+0xdc/0x110()
[    4.207988] coherent pool not initialised!
Quoted 7 lines
Quoted 5 lines
So the pool isn't getting initialized properly because CMA can't get at the memory. Do you have any hints as to what might be going on? If it's any help, I started seeing this with next-20120926 and it is in today's next as well.
Bart and Minchan have made recent changes to CMA. Let us cc them.
Hi all,
I have no time now so I look over the problem during short time so I mighte be wrong. Even I should leave the office soon and Korea will have long vacation from now on so I will be off by next week. So it's hard to reach on me.
I hope this patch fixes the bug. If this patch fixes the problem but has some problem about description or someone has better idea, feel free to modify and resend to akpm, Please.
Thierry, Could you test below patch?
From 24a547855fa2bd4212a779cc73997837148310b3 Mon Sep 17 00:00:00 2001
From: Minchan Kim <[email protected]>
Date: Fri, 28 Sep 2012 14:28:32 +0900
Subject: [PATCH] revert mm: compaction: iron out isolate_freepages_block()
and isolate_freepages_range()

Quoted 7 lines

Quoted 4 lines
[1] made bug on CMA.
The nr_scanned should be never equal to total_isolated for successful CMA. This patch reverts part of the patch.
Why should nr_scanned never be equal to total_isolated for CMA?

Ah crap, never mind. It's so obvious that you probably heard the face slap all the way in Korea. Am putting together an alternative fix to a revert that I'll post shortly.

Signature · 8 lines

Mel Gorman
SUSE Labs

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Mel Gorman

2012-09-28 08:37 UTC #9 lore raw

In reply to Minchan Kim

Quoted 4 lines

I hope this patch fixes the bug. If this patch fixes the problem but has some problem about description or someone has better idea, feel free to modify and resend to akpm, Please.

A full revert is overkill. Can the following patch be tested as a potential replacement please?

---8<---
mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix1

CMA is reported to be broken in next-20120926. Minchan Kim pointed out that this was due to nr_scanned != total_isolated in the case of CMA because PageBuddy pages are one scan but many isolations in CMA. This patch should address the problem.

This patch is a fix for mm-compaction-acquire-the-zone-lock-as-late-as-possible-fix-2.patch

Signed-off-by Mel Gorman <[email protected]>

---
 mm/compaction.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

mm/compaction.c +3 -2

index 8250b69..d6e260a 100644
@@ -282,6 +282,7 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
 {
 	int nr_scanned = 0, total_isolated = 0;
 	struct page *cursor, *valid_page = NULL;
+	unsigned long nr_strict_required = end_pfn - blockpfn;
 	unsigned long flags;
 	bool locked = false;

@@ -343,10 +344,10 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
 
 	/*
 	 * If strict isolation is requested by CMA then check that all the
-	 * pages scanned were isolated. If there were any failures, 0 is
+	 * pages requested were isolated. If there were any failures, 0 is
 	 * returned and CMA will fail.
 	 */
-	if (strict && nr_scanned != total_isolated)
+	if (strict && nr_strict_required != total_isolated)
 		total_isolated = 0;
 
 	if (locked)

Peter Ujfalusi

Tested-by

2012-09-28 08:47 UTC #10 lore raw

Hi,

Quoted 16 lines · Mel Gorman

Quoted 4 lines
I hope this patch fixes the bug. If this patch fixes the problem but has some problem about description or someone has better idea, feel free to modify and resend to akpm, Please.
A full revert is overkill. Can the following patch be tested as a potential replacement please?
---8<---
mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix1
CMA is reported to be broken in next-20120926. Minchan Kim pointed out that this was due to nr_scanned != total_isolated in the case of CMA because PageBuddy pages are one scan but many isolations in CMA. This patch should address the problem.

Quoted 4 lines

This patch is a fix for mm-compaction-acquire-the-zone-lock-as-late-as-possible-fix-2.patch
Signed-off-by Mel Gorman <[email protected]>

linux-next + this patch alone also works for me.

Tested-by Peter Ujfalusi <[email protected]>

Quoted 30 lines

---
 mm/compaction.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

mm/compaction.c +3 -2

index 8250b69..d6e260a 100644
@@ -282,6 +282,7 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
 {
 	int nr_scanned = 0, total_isolated = 0;
 	struct page *cursor, *valid_page = NULL;
+	unsigned long nr_strict_required = end_pfn - blockpfn;
 	unsigned long flags;
 	bool locked = false;

@@ -343,10 +344,10 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
 
 	/*
 	 * If strict isolation is requested by CMA then check that all the
-	 * pages scanned were isolated. If there were any failures, 0 is
+	 * pages requested were isolated. If there were any failures, 0 is
 	 * returned and CMA will fail.
 	 */
-	if (strict && nr_scanned != total_isolated)
+	if (strict && nr_strict_required != total_isolated)
 		total_isolated = 0;
 
 	if (locked)

Signature · 7 lines

Peter

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Mel Gorman

2012-09-28 10:27 UTC #11 lore raw

Quoted 19 lines · Peter Ujfalusi

Hi,
Quoted 16 lines · Mel Gorman
Quoted 4 lines
I hope this patch fixes the bug. If this patch fixes the problem but has some problem about description or someone has better idea, feel free to modify and resend to akpm, Please.
A full revert is overkill. Can the following patch be tested as a potential replacement please?
---8<---
mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix1
CMA is reported to be broken in next-20120926. Minchan Kim pointed out that this was due to nr_scanned != total_isolated in the case of CMA because PageBuddy pages are one scan but many isolations in CMA. This patch should address the problem.

Quoted 8 lines

Quoted 4 lines
This patch is a fix for mm-compaction-acquire-the-zone-lock-as-late-as-possible-fix-2.patch
Signed-off-by Mel Gorman <[email protected]>
linux-next + this patch alone also works for me.
Tested-by Peter Ujfalusi <[email protected]>

Thanks Peter. I expect it also works for Thierry as I expect you were suffering the same problem but obviously confirmation of that would be nice.

Andrew, can you pick up this version of the patch instead of Minchan's revert?

Thanks Minchan for pointing out the obvious flaw in "mm: compaction:
Iron out isolate_freepages_block() and isolate_freepages_range()".

Signature · 8 lines

Mel Gorman
SUSE Labs

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Thierry Reding

author

2012-09-28 10:32 UTC #12 lore raw

Quoted 23 lines · Mel Gorman

Quoted 22 lines · Peter Ujfalusi
Hi,
Quoted 19 lines · Mel Gorman
Quoted 4 lines
I hope this patch fixes the bug. If this patch fixes the problem but has some problem about description or someone has better idea, feel free to modify and resend to akpm, Please.
A full revert is overkill. Can the following patch be tested as a potential replacement please?
---8<---
mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix1
CMA is reported to be broken in next-20120926. Minchan Kim pointed out that this was due to nr_scanned != total_isolated in the case of CMA because PageBuddy pages are one scan but many isolations in CMA. This patch should address the problem.
This patch is a fix for mm-compaction-acquire-the-zone-lock-as-late-as-possible-fix-2.patch

Quoted 8 lines

Quoted 5 lines
Quoted 1 line
Signed-off-by Mel Gorman <[email protected]>
linux-next + this patch alone also works for me.
Tested-by Peter Ujfalusi <[email protected]>
Thanks Peter. I expect it also works for Thierry as I expect you were suffering the same problem but obviously confirmation of that would be nice.

I've been running a few tests and indeed this solves the obvious problem that the coherent pool cannot be created at boot (which in turn caused the ethernet adapter to fail on Tegra).

However I've been working on the Tegra DRM driver, which uses CMA to allocate large chunks of framebuffer memory and these are now failing. I'll need to check if Minchan's patch solves that problem as well.

Thierry

Thierry Reding

author

2012-09-28 10:38 UTC #13 lore raw

Quoted 33 lines · Thierry Reding

Quoted 23 lines · Mel Gorman
Quoted 22 lines · Peter Ujfalusi
Hi,
Quoted 19 lines · Mel Gorman
Quoted 4 lines
I hope this patch fixes the bug. If this patch fixes the problem but has some problem about description or someone has better idea, feel free to modify and resend to akpm, Please.
A full revert is overkill. Can the following patch be tested as a potential replacement please?
---8<---
mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix1
CMA is reported to be broken in next-20120926. Minchan Kim pointed out that this was due to nr_scanned != total_isolated in the case of CMA because PageBuddy pages are one scan but many isolations in CMA. This patch should address the problem.
This patch is a fix for mm-compaction-acquire-the-zone-lock-as-late-as-possible-fix-2.patch
Quoted 8 lines
Quoted 5 lines
Quoted 1 line
Signed-off-by Mel Gorman <[email protected]>
linux-next + this patch alone also works for me.
Tested-by Peter Ujfalusi <[email protected]>
Thanks Peter. I expect it also works for Thierry as I expect you were suffering the same problem but obviously confirmation of that would be nice.

Quoted 7 lines

I've been running a few tests and indeed this solves the obvious problem that the coherent pool cannot be created at boot (which in turn caused the ethernet adapter to fail on Tegra).
However I've been working on the Tegra DRM driver, which uses CMA to allocate large chunks of framebuffer memory and these are now failing. I'll need to check if Minchan's patch solves that problem as well.

Indeed, with Minchan's patch the DRM can allocate the framebuffer without a problem. Something else must be wrong then.

Thierry

Thierry Reding

author

2012-09-28 10:51 UTC #14 lore raw

Quoted 38 lines · Thierry Reding

Quoted 37 lines · Thierry Reding
Quoted 23 lines · Mel Gorman
Quoted 22 lines · Peter Ujfalusi
Hi,
Quoted 19 lines · Mel Gorman
Quoted 4 lines
I hope this patch fixes the bug. If this patch fixes the problem but has some problem about description or someone has better idea, feel free to modify and resend to akpm, Please.
A full revert is overkill. Can the following patch be tested as a potential replacement please?
---8<---
mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix1
CMA is reported to be broken in next-20120926. Minchan Kim pointed out that this was due to nr_scanned != total_isolated in the case of CMA because PageBuddy pages are one scan but many isolations in CMA. This patch should address the problem.
This patch is a fix for mm-compaction-acquire-the-zone-lock-as-late-as-possible-fix-2.patch
Quoted 8 lines
Quoted 5 lines
Quoted 1 line
Signed-off-by Mel Gorman <[email protected]>
linux-next + this patch alone also works for me.
Tested-by Peter Ujfalusi <[email protected]>
Thanks Peter. I expect it also works for Thierry as I expect you were suffering the same problem but obviously confirmation of that would be nice.
I've been running a few tests and indeed this solves the obvious problem that the coherent pool cannot be created at boot (which in turn caused the ethernet adapter to fail on Tegra).

Quoted 6 lines

Quoted 3 lines
However I've been working on the Tegra DRM driver, which uses CMA to allocate large chunks of framebuffer memory and these are now failing. I'll need to check if Minchan's patch solves that problem as well.
Indeed, with Minchan's patch the DRM can allocate the framebuffer without a problem. Something else must be wrong then.

However, depending on the size of the allocation it also happens with Minchan's patch. What I see is this:

[   60.736729] alloc_contig_range test_pages_isolated(1e900, 1f0e9) failed
[   60.743572] alloc_contig_range test_pages_isolated(1ea00, 1f1e9) failed
[   60.750424] alloc_contig_range test_pages_isolated(1ea00, 1f2e9) failed
[   60.757239] alloc_contig_range test_pages_isolated(1ec00, 1f3e9) failed
[   60.764066] alloc_contig_range test_pages_isolated(1ec00, 1f4e9) failed
[   60.770893] alloc_contig_range test_pages_isolated(1ec00, 1f5e9) failed
[   60.777698] alloc_contig_range test_pages_isolated(1ec00, 1f6e9) failed
[   60.784526] alloc_contig_range test_pages_isolated(1f000, 1f7e9) failed
[   60.791148] drm tegra: Failed to alloc buffer: 8294400

I'm pretty sure this did work before next-20120926.

Thierry

Mel Gorman

2012-09-28 11:07 UTC #15 lore raw

Quoted 59 lines · Thierry Reding

Quoted 38 lines · Thierry Reding
Quoted 37 lines · Thierry Reding
Quoted 23 lines · Mel Gorman
Quoted 22 lines · Peter Ujfalusi
Hi,
Quoted 19 lines · Mel Gorman
Quoted 4 lines
I hope this patch fixes the bug. If this patch fixes the problem but has some problem about description or someone has better idea, feel free to modify and resend to akpm, Please.
A full revert is overkill. Can the following patch be tested as a potential replacement please?
---8<---
mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix1
CMA is reported to be broken in next-20120926. Minchan Kim pointed out that this was due to nr_scanned != total_isolated in the case of CMA because PageBuddy pages are one scan but many isolations in CMA. This patch should address the problem.
This patch is a fix for mm-compaction-acquire-the-zone-lock-as-late-as-possible-fix-2.patch
Quoted 8 lines
Quoted 5 lines
Quoted 1 line
Signed-off-by Mel Gorman <[email protected]>
linux-next + this patch alone also works for me.
Tested-by Peter Ujfalusi <[email protected]>
Thanks Peter. I expect it also works for Thierry as I expect you were suffering the same problem but obviously confirmation of that would be nice.
I've been running a few tests and indeed this solves the obvious problem that the coherent pool cannot be created at boot (which in turn caused the ethernet adapter to fail on Tegra).
Quoted 6 lines
Quoted 3 lines
However I've been working on the Tegra DRM driver, which uses CMA to allocate large chunks of framebuffer memory and these are now failing. I'll need to check if Minchan's patch solves that problem as well.
Indeed, with Minchan's patch the DRM can allocate the framebuffer without a problem. Something else must be wrong then.
However, depending on the size of the allocation it also happens with Minchan's patch. What I see is this:
[   60.736729] alloc_contig_range test_pages_isolated(1e900, 1f0e9) failed
[   60.743572] alloc_contig_range test_pages_isolated(1ea00, 1f1e9) failed
[   60.750424] alloc_contig_range test_pages_isolated(1ea00, 1f2e9) failed
[   60.757239] alloc_contig_range test_pages_isolated(1ec00, 1f3e9) failed
[   60.764066] alloc_contig_range test_pages_isolated(1ec00, 1f4e9) failed
[   60.770893] alloc_contig_range test_pages_isolated(1ec00, 1f5e9) failed
[   60.777698] alloc_contig_range test_pages_isolated(1ec00, 1f6e9) failed
[   60.784526] alloc_contig_range test_pages_isolated(1f000, 1f7e9) failed
[   60.791148] drm tegra: Failed to alloc buffer: 8294400

Quoted 2 lines

I'm pretty sure this did work before next-20120926.

Can you double check this please?

This is a separate bug but may be related to the same series. However, CMA should be ignoring the "skip" hints and because it's sync compaction it should not be exiting due to lock contention. Maybe Marek will spot it.

Failing that, would you be in a position to bisect between v3.6-rc6 and current next to try pin-point exactly which patch introduced this problem please?

Signature · 8 lines

Mel Gorman
SUSE Labs

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to [email protected].  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"[email protected]"> [email protected] </a>

Thierry Reding

author

2012-09-28 11:39 UTC #16 lore raw

Quoted 60 lines · Mel Gorman

Quoted 59 lines · Thierry Reding
Quoted 38 lines · Thierry Reding
Quoted 37 lines · Thierry Reding
Quoted 23 lines · Mel Gorman
Quoted 22 lines · Peter Ujfalusi
Hi,
Quoted 19 lines · Mel Gorman
Quoted 4 lines
I hope this patch fixes the bug. If this patch fixes the problem but has some problem about description or someone has better idea, feel free to modify and resend to akpm, Please.
A full revert is overkill. Can the following patch be tested as a potential replacement please?
---8<---
mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix1
CMA is reported to be broken in next-20120926. Minchan Kim pointed out that this was due to nr_scanned != total_isolated in the case of CMA because PageBuddy pages are one scan but many isolations in CMA. This patch should address the problem.
This patch is a fix for mm-compaction-acquire-the-zone-lock-as-late-as-possible-fix-2.patch
Quoted 8 lines
Quoted 5 lines
Quoted 1 line
Signed-off-by Mel Gorman <[email protected]>
linux-next + this patch alone also works for me.
Tested-by Peter Ujfalusi <[email protected]>
Thanks Peter. I expect it also works for Thierry as I expect you were suffering the same problem but obviously confirmation of that would be nice.
I've been running a few tests and indeed this solves the obvious problem that the coherent pool cannot be created at boot (which in turn caused the ethernet adapter to fail on Tegra).
Quoted 6 lines
Quoted 3 lines
However I've been working on the Tegra DRM driver, which uses CMA to allocate large chunks of framebuffer memory and these are now failing. I'll need to check if Minchan's patch solves that problem as well.
Indeed, with Minchan's patch the DRM can allocate the framebuffer without a problem. Something else must be wrong then.
However, depending on the size of the allocation it also happens with Minchan's patch. What I see is this:
[   60.736729] alloc_contig_range test_pages_isolated(1e900, 1f0e9) failed
[   60.743572] alloc_contig_range test_pages_isolated(1ea00, 1f1e9) failed
[   60.750424] alloc_contig_range test_pages_isolated(1ea00, 1f2e9) failed
[   60.757239] alloc_contig_range test_pages_isolated(1ec00, 1f3e9) failed
[   60.764066] alloc_contig_range test_pages_isolated(1ec00, 1f4e9) failed
[   60.770893] alloc_contig_range test_pages_isolated(1ec00, 1f5e9) failed
[   60.777698] alloc_contig_range test_pages_isolated(1ec00, 1f6e9) failed
[   60.784526] alloc_contig_range test_pages_isolated(1f000, 1f7e9) failed
[   60.791148] drm tegra: Failed to alloc buffer: 8294400

Quoted 8 lines

Quoted 2 lines
I'm pretty sure this did work before next-20120926.
Can you double check this please?
This is a separate bug but may be related to the same series. However, CMA should be ignoring the "skip" hints and because it's sync compaction it should not be exiting due to lock contention. Maybe Marek will spot it.

I've written a small test module that tries to allocate growing blocks of contiguous memory and it seems like with your patch this always fails at 8 MiB. Given the default size for CMA allocations is 16 MiB I thought I should try increasing that but it doesn't make a difference. The allocation still fails at 8 MiB.

Maybe that'll give another clue.

Quoted 3 lines

Failing that, would you be in a position to bisect between v3.6-rc6 and current next to try pin-point exactly which patch introduced this problem please?

I can possibly do that but probably not before sometime later next week unfortunately. But I'll see if I can find some time to double-check that some older linux-next version works and that my memory isn't failing me.

Thierry

Mel Gorman

2012-09-28 12:43 UTC #17 lore raw

Quoted 66 lines · Thierry Reding

Quoted 65 lines · Mel Gorman
Quoted 59 lines · Thierry Reding
Quoted 38 lines · Thierry Reding
Quoted 37 lines · Thierry Reding
Quoted 23 lines · Mel Gorman
Quoted 22 lines · Peter Ujfalusi
Hi,
Quoted 19 lines · Mel Gorman
Quoted 4 lines
I hope this patch fixes the bug. If this patch fixes the problem but has some problem about description or someone has better idea, feel free to modify and resend to akpm, Please.
A full revert is overkill. Can the following patch be tested as a potential replacement please?
---8<---
mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix1
CMA is reported to be broken in next-20120926. Minchan Kim pointed out that this was due to nr_scanned != total_isolated in the case of CMA because PageBuddy pages are one scan but many isolations in CMA. This patch should address the problem.
This patch is a fix for mm-compaction-acquire-the-zone-lock-as-late-as-possible-fix-2.patch
Quoted 8 lines
Quoted 5 lines
Quoted 1 line
Signed-off-by Mel Gorman <[email protected]>
linux-next + this patch alone also works for me.
Tested-by Peter Ujfalusi <[email protected]>
Thanks Peter. I expect it also works for Thierry as I expect you were suffering the same problem but obviously confirmation of that would be nice.
I've been running a few tests and indeed this solves the obvious problem that the coherent pool cannot be created at boot (which in turn caused the ethernet adapter to fail on Tegra).
Quoted 6 lines
Quoted 3 lines
However I've been working on the Tegra DRM driver, which uses CMA to allocate large chunks of framebuffer memory and these are now failing. I'll need to check if Minchan's patch solves that problem as well.
Indeed, with Minchan's patch the DRM can allocate the framebuffer without a problem. Something else must be wrong then.
However, depending on the size of the allocation it also happens with Minchan's patch. What I see is this:
[   60.736729] alloc_contig_range test_pages_isolated(1e900, 1f0e9) failed
[   60.743572] alloc_contig_range test_pages_isolated(1ea00, 1f1e9) failed
[   60.750424] alloc_contig_range test_pages_isolated(1ea00, 1f2e9) failed
[   60.757239] alloc_contig_range test_pages_isolated(1ec00, 1f3e9) failed
[   60.764066] alloc_contig_range test_pages_isolated(1ec00, 1f4e9) failed
[   60.770893] alloc_contig_range test_pages_isolated(1ec00, 1f5e9) failed
[   60.777698] alloc_contig_range test_pages_isolated(1ec00, 1f6e9) failed
[   60.784526] alloc_contig_range test_pages_isolated(1f000, 1f7e9) failed
[   60.791148] drm tegra: Failed to alloc buffer: 8294400
Quoted 2 lines
I'm pretty sure this did work before next-20120926.
Can you double check this please?

Quoted 7 lines

Quoted 3 lines
This is a separate bug but may be related to the same series. However, CMA should be ignoring the "skip" hints and because it's sync compaction it should not be exiting due to lock contention. Maybe Marek will spot it.
I've written a small test module that tries to allocate growing blocks of contiguous memory and it seems like with your patch this always fails at 8 MiB.

You earlier said it also happens with Minchan's but your statment here is less clear. Does Minchan's also fail on the 8MiB boundary? Second, did the test module work with next-20120926?

Quoted 5 lines

Given the default size for CMA allocations is 16 MiB I thought I should try increasing that but it doesn't make a difference. The allocation still fails at 8 MiB.
Maybe that'll give another clue.

It narrows down the possibilities at least.

Quoted 8 lines

Quoted 3 lines
Failing that, would you be in a position to bisect between v3.6-rc6 and current next to try pin-point exactly which patch introduced this problem please?
I can possibly do that but probably not before sometime later next week unfortunately. But I'll see if I can find some time to double-check that some older linux-next version works and that my memory isn't failing me.

That would be very much appreciated because it narrows down the possibilties. I don't have anything in place that allows me to test CMA so the more information I can get the better.

Thanks.

Signature · 8 lines

Mel Gorman
SUSE Labs

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to [email protected].  For more info on Linux MM,
see: http://www.linux-mm.org/ .
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Thierry Reding

author

2012-10-01 14:24 UTC #18 lore raw

Quoted 71 lines · Mel Gorman

Quoted 70 lines · Thierry Reding
Quoted 68 lines · Mel Gorman
Quoted 59 lines · Thierry Reding
Quoted 38 lines · Thierry Reding
Quoted 37 lines · Thierry Reding
Quoted 23 lines · Mel Gorman
Quoted 22 lines · Peter Ujfalusi
Hi,
Quoted 19 lines · Mel Gorman
Quoted 4 lines
I hope this patch fixes the bug. If this patch fixes the problem but has some problem about description or someone has better idea, feel free to modify and resend to akpm, Please.
A full revert is overkill. Can the following patch be tested as a potential replacement please?
---8<---
mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix1
CMA is reported to be broken in next-20120926. Minchan Kim pointed out that this was due to nr_scanned != total_isolated in the case of CMA because PageBuddy pages are one scan but many isolations in CMA. This patch should address the problem.
This patch is a fix for mm-compaction-acquire-the-zone-lock-as-late-as-possible-fix-2.patch
Quoted 8 lines
Quoted 5 lines
Quoted 1 line
Signed-off-by Mel Gorman <[email protected]>
linux-next + this patch alone also works for me.
Tested-by Peter Ujfalusi <[email protected]>
Thanks Peter. I expect it also works for Thierry as I expect you were suffering the same problem but obviously confirmation of that would be nice.
I've been running a few tests and indeed this solves the obvious problem that the coherent pool cannot be created at boot (which in turn caused the ethernet adapter to fail on Tegra).
Quoted 6 lines
Quoted 3 lines
However I've been working on the Tegra DRM driver, which uses CMA to allocate large chunks of framebuffer memory and these are now failing. I'll need to check if Minchan's patch solves that problem as well.
Indeed, with Minchan's patch the DRM can allocate the framebuffer without a problem. Something else must be wrong then.
However, depending on the size of the allocation it also happens with Minchan's patch. What I see is this:
[   60.736729] alloc_contig_range test_pages_isolated(1e900, 1f0e9) failed
[   60.743572] alloc_contig_range test_pages_isolated(1ea00, 1f1e9) failed
[   60.750424] alloc_contig_range test_pages_isolated(1ea00, 1f2e9) failed
[   60.757239] alloc_contig_range test_pages_isolated(1ec00, 1f3e9) failed
[   60.764066] alloc_contig_range test_pages_isolated(1ec00, 1f4e9) failed
[   60.770893] alloc_contig_range test_pages_isolated(1ec00, 1f5e9) failed
[   60.777698] alloc_contig_range test_pages_isolated(1ec00, 1f6e9) failed
[   60.784526] alloc_contig_range test_pages_isolated(1f000, 1f7e9) failed
[   60.791148] drm tegra: Failed to alloc buffer: 8294400
Quoted 2 lines
I'm pretty sure this did work before next-20120926.
Can you double check this please?
This is a separate bug but may be related to the same series. However, CMA should be ignoring the "skip" hints and because it's sync compaction it should not be exiting due to lock contention. Maybe Marek will spot it.

Quoted 7 lines

Quoted 3 lines
I've written a small test module that tries to allocate growing blocks of contiguous memory and it seems like with your patch this always fails at 8 MiB.
You earlier said it also happens with Minchan's but your statment here is less clear. Does Minchan's also fail on the 8MiB boundary? Second, did the test module work with next-20120926?

The cmatest module that I use tries to allocate blocks from 4 KiB to 256 MiB (in increments of powers of two). With next-20120926 this always fails at 8 MiB, independent of the CMA size setting (though I didn't test setting the CMA size to <= 8 MiB, I assumed that would make the 8 MiB allocation fail anyway). Note that I had to apply the attached patch which fixes a build failure on next-20120926. I believe that Mark Brown posted a similar fix a few days ago. I'm also attaching a log from the module's test run. There's also an interesting page allocation failure at the very end of that log which I have not seen with next-20120925.

I've run the same tests on next-20120925 with the CMA size set to 256 MiB and only the 256 MiB allocation fails. This is normal since there are other modules that already allocate smaller buffers from CMA, so a whole 256 MiB won't be available.

Vanilla 3.6-rc6 shows the same behaviour as next-20120925. I will try 3.6-rc7 next since that's what next-20120926 is based on. If that succeeds I'll try to bisect between 3.6-rc7 and next-20120926 to find the culprit, but that will probably take some more time as I need to apply at least one other commit on top to get the board to boot at all.

So this really isn't all that new, but I just wanted to confirm my results from last week. We'll see if bisection shows up something interesting.

Thierry

include/linux/pageblock-flags.h +2 -2

index eed27f4..9ed5841 100644
@@ -30,7 +30,7 @@ enum pageblock_bits {
 	PB_migrate,
 	PB_migrate_end = PB_migrate + 3 - 1,
 			/* 3 bits required for migrate types */
-#ifdef CONFIG_COMPACTION
+#if defined(CONFIG_COMPACTION) || defined(CONFIG_CMA)
 	PB_migrate_skip,/* If set the block is skipped by compaction */
 #endif /* CONFIG_COMPACTION */
 	NR_PAGEBLOCK_BITS

@@ -68,7 +68,7 @@ unsigned long get_pageblock_flags_group(struct page *page,
 void set_pageblock_flags_group(struct page *page, unsigned long flags,
 					int start_bitidx, int end_bitidx);
 
-#ifdef CONFIG_COMPACTION
+#if defined(CONFIG_COMPACTION) || defined(CONFIG_CMA)
 #define get_pageblock_skip(page) \
 			get_pageblock_flags_group(page, PB_migrate_skip,     \
 							PB_migrate_skip + 1)

modprobe cmatest

[  241.358384] cma: dma_alloc_from_contiguous(cma cf473fc0, count 1, align 0)
[  241.365687] cma: dma_alloc_from_contiguous(): memory range at c08c6000 is busy, retrying
[  241.374024] cma: dma_alloc_from_contiguous(): memory range at c08c6020 is busy, retrying
[  241.382343] cma: dma_alloc_from_contiguous(): memory range at c08c6040 is busy, retrying
[  241.390630] cma: dma_alloc_from_contiguous(): memory range at c08c6060 is busy, retrying
[  241.398920] cma: dma_alloc_from_contiguous(): memory range at c08c6080 is busy, retrying
[  241.407203] cma: dma_alloc_from_contiguous(): memory range at c08c60a0 is busy, retrying
[  241.415455] cma: dma_alloc_from_contiguous(): memory range at c08c60c0 is busy, retrying
[  241.423742] cma: dma_alloc_from_contiguous(): memory range at c08c60e0 is busy, retrying
[  241.432021] cma: dma_alloc_from_contiguous(): memory range at c08c6100 is busy, retrying
[  241.440301] cma: dma_alloc_from_contiguous(): memory range at c08c6120 is busy, retrying
[  241.448581] cma: dma_alloc_from_contiguous(): memory range at c08c6140 is busy, retrying
[  241.456862] cma: dma_alloc_from_contiguous(): memory range at c08c6160 is busy, retrying
[  241.465118] cma: dma_alloc_from_contiguous(): memory range at c08c6180 is busy, retrying
[  241.473399] cma: dma_alloc_from_contiguous(): memory range at c08c61a0 is busy, retrying
[  241.481678] cma: dma_alloc_from_contiguous(): memory range at c08c61c0 is busy, retrying
[  241.489960] cma: dma_alloc_from_contiguous(): memory range at c08c61e0 is busy, retrying
[  241.498251] cma: dma_alloc_from_contiguous(): memory range at c08c6200 is busy, retrying
[  241.506535] cma: dma_alloc_from_contiguous(): memory range at c08c6220 is busy, retrying
[  241.514791] cma: dma_alloc_from_contiguous(): memory range at c08c6240 is busy, retrying
[  241.523072] cma: dma_alloc_from_contiguous(): memory range at c08c6260 is busy, retrying
[  241.531352] cma: dma_alloc_from_contiguous(): memory range at c08c6280 is busy, retrying
[  241.539634] cma: dma_alloc_from_contiguous(): memory range at c08c62a0 is busy, retrying
[  241.547912] cma: dma_alloc_from_contiguous(): memory range at c08c62c0 is busy, retrying
[  241.556164] cma: dma_alloc_from_contiguous(): memory range at c08c62e0 is busy, retrying
[  241.564443] cma: dma_alloc_from_contiguous(): memory range at c08c6300 is busy, retrying
[  241.572722] cma: dma_alloc_from_contiguous(): memory range at c08c6320 is busy, retrying
[  241.581003] cma: dma_alloc_from_contiguous(): memory range at c08c6340 is busy, retrying
[  241.589282] cma: dma_alloc_from_contiguous(): memory range at c08c6360 is busy, retrying
[  241.597561] cma: dma_alloc_from_contiguous(): memory range at c08c6380 is busy, retrying
[  241.605814] cma: dma_alloc_from_contiguous(): memory range at c08c63a0 is busy, retrying
[  241.614104] cma: dma_alloc_from_contiguous(): memory range at c08c63c0 is busy, retrying
[  241.622396] cma: dma_alloc_from_contiguous(): returned c08c63e0
[  241.628340] successfully allocated 4096 bytes
[  241.632685] cma: dma_release_from_contiguous(page c08c63e0)
[  241.638259] cma: dma_alloc_from_contiguous(cma cf473fc0, count 2, align 1)
[  241.645308] cma: dma_alloc_from_contiguous(): memory range at c08c6000 is busy, retrying
[  241.653612] cma: dma_alloc_from_contiguous(): memory range at c08c6040 is busy, retrying
[  241.661892] cma: dma_alloc_from_contiguous(): memory range at c08c6080 is busy, retrying
[  241.670172] cma: dma_alloc_from_contiguous(): memory range at c08c60c0 is busy, retrying
[  241.678452] cma: dma_alloc_from_contiguous(): memory range at c08c6100 is busy, retrying
[  241.686736] cma: dma_alloc_from_contiguous(): memory range at c08c6140 is busy, retrying
[  241.694989] cma: dma_alloc_from_contiguous(): memory range at c08c6180 is busy, retrying
[  241.703279] cma: dma_alloc_from_contiguous(): memory range at c08c61c0 is busy, retrying
[  241.711560] cma: dma_alloc_from_contiguous(): memory range at c08c6200 is busy, retrying
[  241.719838] cma: dma_alloc_from_contiguous(): memory range at c08c6240 is busy, retrying
[  241.728116] cma: dma_alloc_from_contiguous(): memory range at c08c6280 is busy, retrying
[  241.736367] cma: dma_alloc_from_contiguous(): memory range at c08c62c0 is busy, retrying
[  241.744648] cma: dma_alloc_from_contiguous(): memory range at c08c6300 is busy, retrying
[  241.752927] cma: dma_alloc_from_contiguous(): memory range at c08c6340 is busy, retrying
[  241.761209] cma: dma_alloc_from_contiguous(): memory range at c08c6380 is busy, retrying
[  241.769484] cma: dma_alloc_from_contiguous(): returned c08c63c0
[  241.775416] successfully allocated 8192 bytes
[  241.779781] cma: dma_release_from_contiguous(page c08c63c0)
[  241.785342] cma: dma_alloc_from_contiguous(cma cf473fc0, count 4, align 2)
[  241.792408] cma: dma_alloc_from_contiguous(): memory range at c08c6000 is busy, retrying
[  241.800687] cma: dma_alloc_from_contiguous(): memory range at c08c6080 is busy, retrying
[  241.808967] cma: dma_alloc_from_contiguous(): memory range at c08c6100 is busy, retrying
[  241.817248] cma: dma_alloc_from_contiguous(): memory range at c08c6180 is busy, retrying
[  241.825501] cma: dma_alloc_from_contiguous(): memory range at c08c6200 is busy, retrying
[  241.833783] cma: dma_alloc_from_contiguous(): memory range at c08c6280 is busy, retrying
[  241.842062] cma: dma_alloc_from_contiguous(): memory range at c08c6300 is busy, retrying
[  241.850341] cma: dma_alloc_from_contiguous(): returned c08c6380
[  241.856299] successfully allocated 16384 bytes
[  241.860751] cma: dma_release_from_contiguous(page c08c6380)
[  241.866312] cma: dma_alloc_from_contiguous(cma cf473fc0, count 8, align 3)
[  241.873378] cma: dma_alloc_from_contiguous(): memory range at c08c6000 is busy, retrying
[  241.881667] cma: dma_alloc_from_contiguous(): memory range at c08c6100 is busy, retrying
[  241.889960] cma: dma_alloc_from_contiguous(): memory range at c08c6200 is busy, retrying
[  241.898245] cma: dma_alloc_from_contiguous(): returned c08c6300
[  241.904257] successfully allocated 32768 bytes
[  241.908711] cma: dma_release_from_contiguous(page c08c6300)
[  241.914274] cma: dma_alloc_from_contiguous(cma cf473fc0, count 16, align 4)
[  241.921433] cma: dma_alloc_from_contiguous(): memory range at c08c6000 is busy, retrying
[  241.929704] cma: dma_alloc_from_contiguous(): returned c08c6200
[  241.935815] successfully allocated 65536 bytes
[  241.940270] cma: dma_release_from_contiguous(page c08c6200)
[  241.945835] cma: dma_alloc_from_contiguous(cma cf473fc0, count 32, align 5)
[  241.953005] cma: dma_alloc_from_contiguous(): returned c08c6000
[  241.959358] successfully allocated 131072 bytes
[  241.963879] cma: dma_release_from_contiguous(page c08c6000)
[  241.969464] cma: dma_alloc_from_contiguous(cma cf473fc0, count 64, align 6)
[  241.976633] cma: dma_alloc_from_contiguous(): returned c08c7000
[  241.983362] successfully allocated 262144 bytes
[  241.987912] cma: dma_release_from_contiguous(page c08c7000)
[  241.993494] cma: dma_alloc_from_contiguous(cma cf473fc0, count 128, align 7)
[  242.000780] cma: dma_alloc_from_contiguous(): returned c08c8000
[  242.008388] successfully allocated 524288 bytes
[  242.012918] cma: dma_release_from_contiguous(page c08c8000)
[  242.018550] cma: dma_alloc_from_contiguous(cma cf473fc0, count 256, align 8)
[  242.026035] cma: dma_alloc_from_contiguous(): returned c08ca000
[  242.035433] successfully allocated 1048576 bytes
[  242.040096] cma: dma_release_from_contiguous(page c08ca000)
[  242.045776] cma: dma_alloc_from_contiguous(cma cf473fc0, count 512, align 8)
[  242.054059] cma: dma_alloc_from_contiguous(): memory range at c08ce000 is busy, retrying
[  242.063072] cma: dma_alloc_from_contiguous(): memory range at c08d0000 is busy, retrying
[  242.071782] cma: dma_alloc_from_contiguous(): returned c08d2000
[  242.082982] successfully allocated 2097152 bytes
[  242.087671] cma: dma_release_from_contiguous(page c08d2000)
[  242.093494] cma: dma_alloc_from_contiguous(cma cf473fc0, count 1024, align 8)
[  242.101253] cma: dma_alloc_from_contiguous(): returned c08ce000
[  242.115323] successfully allocated 4194304 bytes
[  242.120063] cma: dma_release_from_contiguous(page c08ce000)
[  242.126198] cma: dma_alloc_from_contiguous(cma cf473fc0, count 2048, align 8)
[  242.133650] alloc_contig_range test_pages_isolated(fc00, 10400) failed
[  242.140183] cma: dma_alloc_from_contiguous(): memory range at c08ce000 is busy, retrying
[  242.148473] alloc_contig_range test_pages_isolated(fc00, 10500) failed
[  242.154987] cma: dma_alloc_from_contiguous(): memory range at c08d0000 is busy, retrying
[  242.163274] alloc_contig_range test_pages_isolated(fc00, 10600) failed
[  242.169804] cma: dma_alloc_from_contiguous(): memory range at c08d2000 is busy, retrying
[  242.178084] alloc_contig_range test_pages_isolated(fc00, 10700) failed
[  242.184597] cma: dma_alloc_from_contiguous(): memory range at c08d4000 is busy, retrying
[  242.192882] alloc_contig_range test_pages_isolated(10000, 10800) failed
[  242.199498] cma: dma_alloc_from_contiguous(): memory range at c08d6000 is busy, retrying
[  242.207777] alloc_contig_range test_pages_isolated(10000, 10900) failed
[  242.214377] cma: dma_alloc_from_contiguous(): memory range at c08d8000 is busy, retrying
[  242.222663] alloc_contig_range test_pages_isolated(10000, 10a00) failed
[  242.229280] cma: dma_alloc_from_contiguous(): memory range at c08da000 is busy, retrying
[  242.237559] alloc_contig_range test_pages_isolated(10000, 10b00) failed
[  242.244159] cma: dma_alloc_from_contiguous(): memory range at c08dc000 is busy, retrying
[  242.252466] alloc_contig_range test_pages_isolated(10400, 10c00) failed
[  242.259082] cma: dma_alloc_from_contiguous(): memory range at c08de000 is busy, retrying
[  242.267362] alloc_contig_range test_pages_isolated(10400, 10d00) failed
[  242.273962] cma: dma_alloc_from_contiguous(): memory range at c08e0000 is busy, retrying
[  242.282247] alloc_contig_range test_pages_isolated(10400, 10e00) failed
[  242.288866] cma: dma_alloc_from_contiguous(): memory range at c08e2000 is busy, retrying
[  242.297152] alloc_contig_range test_pages_isolated(10400, 10f00) failed
[  242.303752] cma: dma_alloc_from_contiguous(): memory range at c08e4000 is busy, retrying
[  242.312037] alloc_contig_range test_pages_isolated(10800, 11000) failed
[  242.318653] cma: dma_alloc_from_contiguous(): memory range at c08e6000 is busy, retrying
[  242.326932] alloc_contig_range test_pages_isolated(10800, 11100) failed
[  242.333532] cma: dma_alloc_from_contiguous(): memory range at c08e8000 is busy, retrying
[  242.341818] alloc_contig_range test_pages_isolated(10800, 11200) failed
[  242.348435] cma: dma_alloc_from_contiguous(): memory range at c08ea000 is busy, retrying
[  242.356714] alloc_contig_range test_pages_isolated(10800, 11300) failed
[  242.363314] cma: dma_alloc_from_contiguous(): memory range at c08ec000 is busy, retrying
[  242.371597] alloc_contig_range test_pages_isolated(10c00, 11400) failed
[  242.378213] cma: dma_alloc_from_contiguous(): memory range at c08ee000 is busy, retrying
[  242.386494] alloc_contig_range test_pages_isolated(10c00, 11500) failed
[  242.393093] cma: dma_alloc_from_contiguous(): memory range at c08f0000 is busy, retrying
[  242.401377] alloc_contig_range test_pages_isolated(10c00, 11600) failed
[  242.407996] cma: dma_alloc_from_contiguous(): memory range at c08f2000 is busy, retrying
[  242.416269] alloc_contig_range test_pages_isolated(10c00, 11700) failed
[  242.422888] cma: dma_alloc_from_contiguous(): memory range at c08f4000 is busy, retrying
[  242.431164] alloc_contig_range test_pages_isolated(11000, 11800) failed
[  242.437784] cma: dma_alloc_from_contiguous(): memory range at c08f6000 is busy, retrying
[  242.446048] alloc_contig_range test_pages_isolated(11000, 11900) failed
[  242.452669] cma: dma_alloc_from_contiguous(): memory range at c08f8000 is busy, retrying
[  242.460946] alloc_contig_range test_pages_isolated(11000, 11a00) failed
[  242.467564] cma: dma_alloc_from_contiguous(): memory range at c08fa000 is busy, retrying
[  242.475829] alloc_contig_range test_pages_isolated(11000, 11b00) failed
[  242.482449] cma: dma_alloc_from_contiguous(): memory range at c08fc000 is busy, retrying
[  242.490724] alloc_contig_range test_pages_isolated(11400, 11c00) failed
[  242.497350] cma: dma_alloc_from_contiguous(): memory range at c08fe000 is busy, retrying
[  242.505619] alloc_contig_range test_pages_isolated(11400, 11d00) failed
[  242.512237] cma: dma_alloc_from_contiguous(): memory range at c0900000 is busy, retrying
[  242.520514] alloc_contig_range test_pages_isolated(11400, 11e00) failed
[  242.527133] cma: dma_alloc_from_contiguous(): memory range at c0902000 is busy, retrying
[  242.535397] alloc_contig_range test_pages_isolated(11400, 11f00) failed
[  242.542017] cma: dma_alloc_from_contiguous(): memory range at c0904000 is busy, retrying
[  242.550312] alloc_contig_range test_pages_isolated(11800, 12000) failed
[  242.556931] cma: dma_alloc_from_contiguous(): memory range at c0906000 is busy, retrying
[  242.565196] alloc_contig_range test_pages_isolated(11800, 12100) failed
[  242.571815] cma: dma_alloc_from_contiguous(): memory range at c0908000 is busy, retrying
[  242.580093] alloc_contig_range test_pages_isolated(11800, 12200) failed
[  242.586712] cma: dma_alloc_from_contiguous(): memory range at c090a000 is busy, retrying
[  242.594977] alloc_contig_range test_pages_isolated(11800, 12300) failed
[  242.601597] cma: dma_alloc_from_contiguous(): memory range at c090c000 is busy, retrying
[  242.609873] alloc_contig_range test_pages_isolated(11c00, 12400) failed
[  242.616491] cma: dma_alloc_from_contiguous(): memory range at c090e000 is busy, retrying
[  242.624756] alloc_contig_range test_pages_isolated(11c00, 12500) failed
[  242.631376] cma: dma_alloc_from_contiguous(): memory range at c0910000 is busy, retrying
[  242.639653] alloc_contig_range test_pages_isolated(11c00, 12600) failed
[  242.646252] cma: dma_alloc_from_contiguous(): memory range at c0912000 is busy, retrying
[  242.654540] alloc_contig_range test_pages_isolated(11c00, 12700) failed
[  242.661158] cma: dma_alloc_from_contiguous(): memory range at c0914000 is busy, retrying
[  242.669445] alloc_contig_range test_pages_isolated(12000, 12800) failed
[  242.676044] cma: dma_alloc_from_contiguous(): memory range at c0916000 is busy, retrying
[  242.684331] alloc_contig_range test_pages_isolated(12000, 12900) failed
[  242.690948] cma: dma_alloc_from_contiguous(): memory range at c0918000 is busy, retrying
[  242.699235] alloc_contig_range test_pages_isolated(12000, 12a00) failed
[  242.705835] cma: dma_alloc_from_contiguous(): memory range at c091a000 is busy, retrying
[  242.714124] alloc_contig_range test_pages_isolated(12000, 12b00) failed
[  242.720740] cma: dma_alloc_from_contiguous(): memory range at c091c000 is busy, retrying
[  242.729019] alloc_contig_range test_pages_isolated(12400, 12c00) failed
[  242.735619] cma: dma_alloc_from_contiguous(): memory range at c091e000 is busy, retrying
[  242.743906] alloc_contig_range test_pages_isolated(12400, 12d00) failed
[  242.750523] cma: dma_alloc_from_contiguous(): memory range at c0920000 is busy, retrying
[  242.758802] alloc_contig_range test_pages_isolated(12400, 12e00) failed
[  242.765403] cma: dma_alloc_from_contiguous(): memory range at c0922000 is busy, retrying
[  242.773690] alloc_contig_range test_pages_isolated(12400, 12f00) failed
[  242.780307] cma: dma_alloc_from_contiguous(): memory range at c0924000 is busy, retrying
[  242.788585] alloc_contig_range test_pages_isolated(12800, 13000) failed
[  242.795184] cma: dma_alloc_from_contiguous(): memory range at c0926000 is busy, retrying
[  242.803472] alloc_contig_range test_pages_isolated(12800, 13100) failed
[  242.810091] cma: dma_alloc_from_contiguous(): memory range at c0928000 is busy, retrying
[  242.818371] alloc_contig_range test_pages_isolated(12800, 13200) failed
[  242.824972] cma: dma_alloc_from_contiguous(): memory range at c092a000 is busy, retrying
[  242.833261] alloc_contig_range test_pages_isolated(12800, 13300) failed
[  242.839878] cma: dma_alloc_from_contiguous(): memory range at c092c000 is busy, retrying
[  242.848178] alloc_contig_range test_pages_isolated(12c00, 13400) failed
[  242.854777] cma: dma_alloc_from_contiguous(): memory range at c092e000 is busy, retrying
[  242.863065] alloc_contig_range test_pages_isolated(12c00, 13500) failed
[  242.869682] cma: dma_alloc_from_contiguous(): memory range at c0930000 is busy, retrying
[  242.877962] alloc_contig_range test_pages_isolated(12c00, 13600) failed
[  242.884561] cma: dma_alloc_from_contiguous(): memory range at c0932000 is busy, retrying
[  242.892848] alloc_contig_range test_pages_isolated(12c00, 13700) failed
[  242.899473] cma: dma_alloc_from_contiguous(): memory range at c0934000 is busy, retrying
[  242.907754] alloc_contig_range test_pages_isolated(13000, 13800) failed
[  242.914353] cma: dma_alloc_from_contiguous(): memory range at c0936000 is busy, retrying
[  242.922641] alloc_contig_range test_pages_isolated(13000, 13900) failed
[  242.929257] cma: dma_alloc_from_contiguous(): memory range at c0938000 is busy, retrying
[  242.937547] alloc_contig_range test_pages_isolated(13000, 13a00) failed
[  242.944148] cma: dma_alloc_from_contiguous(): memory range at c093a000 is busy, retrying
[  242.952435] alloc_contig_range test_pages_isolated(13000, 13b00) failed
[  242.959053] cma: dma_alloc_from_contiguous(): memory range at c093c000 is busy, retrying
[  242.967331] alloc_contig_range test_pages_isolated(13400, 13c00) failed
[  242.973930] cma: dma_alloc_from_contiguous(): memory range at c093e000 is busy, retrying
[  242.982216] alloc_contig_range test_pages_isolated(13400, 13d00) failed
[  242.988834] cma: dma_alloc_from_contiguous(): memory range at c0940000 is busy, retrying
[  242.997115] alloc_contig_range test_pages_isolated(13400, 13e00) failed
[  243.003715] cma: dma_alloc_from_contiguous(): memory range at c0942000 is busy, retrying
[  243.012003] alloc_contig_range test_pages_isolated(13400, 13f00) failed
[  243.018638] cma: dma_alloc_from_contiguous(): memory range at c0944000 is busy, retrying
[  243.026919] alloc_contig_range test_pages_isolated(13800, 14000) failed
[  243.033518] cma: dma_alloc_from_contiguous(): memory range at c0946000 is busy, retrying
[  243.041807] alloc_contig_range test_pages_isolated(13800, 14100) failed
[  243.048423] cma: dma_alloc_from_contiguous(): memory range at c0948000 is busy, retrying
[  243.056702] alloc_contig_range test_pages_isolated(13800, 14200) failed
[  243.063303] cma: dma_alloc_from_contiguous(): memory range at c094a000 is busy, retrying
[  243.071590] alloc_contig_range test_pages_isolated(13800, 14300) failed
[  243.078205] cma: dma_alloc_from_contiguous(): memory range at c094c000 is busy, retrying
[  243.086485] alloc_contig_range test_pages_isolated(13c00, 14400) failed
[  243.093084] cma: dma_alloc_from_contiguous(): memory range at c094e000 is busy, retrying
[  243.101378] alloc_contig_range test_pages_isolated(13c00, 14500) failed
[  243.107995] cma: dma_alloc_from_contiguous(): memory range at c0950000 is busy, retrying
[  243.116261] alloc_contig_range test_pages_isolated(13c00, 14600) failed
[  243.122880] cma: dma_alloc_from_contiguous(): memory range at c0952000 is busy, retrying
[  243.131157] alloc_contig_range test_pages_isolated(13c00, 14700) failed
[  243.137776] cma: dma_alloc_from_contiguous(): memory range at c0954000 is busy, retrying
[  243.146039] alloc_contig_range test_pages_isolated(14000, 14800) failed
[  243.152677] cma: dma_alloc_from_contiguous(): memory range at c0956000 is busy, retrying
[  243.160957] alloc_contig_range test_pages_isolated(14000, 14900) failed
[  243.167576] cma: dma_alloc_from_contiguous(): memory range at c0958000 is busy, retrying
[  243.175843] alloc_contig_range test_pages_isolated(14000, 14a00) failed
[  243.182460] cma: dma_alloc_from_contiguous(): memory range at c095a000 is busy, retrying
[  243.190747] alloc_contig_range test_pages_isolated(14000, 14b00) failed
[  243.197366] cma: dma_alloc_from_contiguous(): memory range at c095c000 is busy, retrying
[  243.205631] alloc_contig_range test_pages_isolated(14400, 14c00) failed
[  243.212249] cma: dma_alloc_from_contiguous(): memory range at c095e000 is busy, retrying
[  243.220528] alloc_contig_range test_pages_isolated(14400, 14d00) failed
[  243.227148] cma: dma_alloc_from_contiguous(): memory range at c0960000 is busy, retrying
[  243.235414] alloc_contig_range test_pages_isolated(14400, 14e00) failed
[  243.242034] cma: dma_alloc_from_contiguous(): memory range at c0962000 is busy, retrying
[  243.250313] alloc_contig_range test_pages_isolated(14400, 14f00) failed
[  243.256934] cma: dma_alloc_from_contiguous(): memory range at c0964000 is busy, retrying
[  243.265199] alloc_contig_range test_pages_isolated(14800, 15000) failed
[  243.271816] cma: dma_alloc_from_contiguous(): memory range at c0966000 is busy, retrying
[  243.280097] alloc_contig_range test_pages_isolated(14800, 15100) failed
[  243.286716] cma: dma_alloc_from_contiguous(): memory range at c0968000 is busy, retrying
[  243.294983] alloc_contig_range test_pages_isolated(14800, 15200) failed
[  243.301610] cma: dma_alloc_from_contiguous(): memory range at c096a000 is busy, retrying
[  243.309895] alloc_contig_range test_pages_isolated(14800, 15300) failed
[  243.316514] cma: dma_alloc_from_contiguous(): memory range at c096c000 is busy, retrying
[  243.324779] alloc_contig_range test_pages_isolated(14c00, 15400) failed
[  243.331397] cma: dma_alloc_from_contiguous(): memory range at c096e000 is busy, retrying
[  243.339675] alloc_contig_range test_pages_isolated(14c00, 15500) failed
[  243.346276] cma: dma_alloc_from_contiguous(): memory range at c0970000 is busy, retrying
[  243.354565] alloc_contig_range test_pages_isolated(14c00, 15600) failed
[  243.361181] cma: dma_alloc_from_contiguous(): memory range at c0972000 is busy, retrying
[  243.369461] alloc_contig_range test_pages_isolated(14c00, 15700) failed
[  243.376061] cma: dma_alloc_from_contiguous(): memory range at c0974000 is busy, retrying
[  243.384346] alloc_contig_range test_pages_isolated(15000, 15800) failed
[  243.390964] cma: dma_alloc_from_contiguous(): memory range at c0976000 is busy, retrying
[  243.399246] alloc_contig_range test_pages_isolated(15000, 15900) failed
[  243.405846] cma: dma_alloc_from_contiguous(): memory range at c0978000 is busy, retrying
[  243.414136] alloc_contig_range test_pages_isolated(15000, 15a00) failed
[  243.420754] cma: dma_alloc_from_contiguous(): memory range at c097a000 is busy, retrying
[  243.429034] alloc_contig_range test_pages_isolated(15000, 15b00) failed
[  243.435633] cma: dma_alloc_from_contiguous(): memory range at c097c000 is busy, retrying
[  243.443932] alloc_contig_range test_pages_isolated(15400, 15c00) failed
[  243.450570] cma: dma_alloc_from_contiguous(): memory range at c097e000 is busy, retrying
[  243.458857] alloc_contig_range test_pages_isolated(15400, 15d00) failed
[  243.465457] cma: dma_alloc_from_contiguous(): memory range at c0980000 is busy, retrying
[  243.473747] alloc_contig_range test_pages_isolated(15400, 15e00) failed
[  243.480365] cma: dma_alloc_from_contiguous(): memory range at c0982000 is busy, retrying
[  243.488647] alloc_contig_range test_pages_isolated(15400, 15f00) failed
[  243.495246] cma: dma_alloc_from_contiguous(): memory range at c0984000 is busy, retrying
[  243.503544] alloc_contig_range test_pages_isolated(15800, 16000) failed
[  243.510160] cma: dma_alloc_from_contiguous(): memory range at c0986000 is busy, retrying
[  243.518442] alloc_contig_range test_pages_isolated(15800, 16100) failed
[  243.525042] cma: dma_alloc_from_contiguous(): memory range at c0988000 is busy, retrying
[  243.533331] alloc_contig_range test_pages_isolated(15800, 16200) failed
[  243.539950] cma: dma_alloc_from_contiguous(): memory range at c098a000 is busy, retrying
[  243.548232] alloc_contig_range test_pages_isolated(15800, 16300) failed
[  243.554832] cma: dma_alloc_from_contiguous(): memory range at c098c000 is busy, retrying
[  243.563118] alloc_contig_range test_pages_isolated(15c00, 16400) failed
[  243.569734] cma: dma_alloc_from_contiguous(): memory range at c098e000 is busy, retrying
[  243.578015] alloc_contig_range test_pages_isolated(15c00, 16500) failed
[  243.584615] cma: dma_alloc_from_contiguous(): memory range at c0990000 is busy, retrying
[  243.592904] alloc_contig_range test_pages_isolated(15c00, 16600) failed
[  243.599520] cma: dma_alloc_from_contiguous(): memory range at c0992000 is busy, retrying
[  243.607799] alloc_contig_range test_pages_isolated(15c00, 16700) failed
[  243.614400] cma: dma_alloc_from_contiguous(): memory range at c0994000 is busy, retrying
[  243.622687] alloc_contig_range test_pages_isolated(16000, 16800) failed
[  243.629305] cma: dma_alloc_from_contiguous(): memory range at c0996000 is busy, retrying
[  243.637588] alloc_contig_range test_pages_isolated(16000, 16900) failed
[  243.644188] cma: dma_alloc_from_contiguous(): memory range at c0998000 is busy, retrying
[  243.652478] alloc_contig_range test_pages_isolated(16000, 16a00) failed
[  243.659095] cma: dma_alloc_from_contiguous(): memory range at c099a000 is busy, retrying
[  243.667377] alloc_contig_range test_pages_isolated(16000, 16b00) failed
[  243.673977] cma: dma_alloc_from_contiguous(): memory range at c099c000 is busy, retrying
[  243.682265] alloc_contig_range test_pages_isolated(16400, 16c00) failed
[  243.688883] cma: dma_alloc_from_contiguous(): memory range at c099e000 is busy, retrying
[  243.697173] alloc_contig_range test_pages_isolated(16400, 16d00) failed
[  243.703774] cma: dma_alloc_from_contiguous(): memory range at c09a0000 is busy, retrying
[  243.712086] alloc_contig_range test_pages_isolated(16400, 16e00) failed
[  243.718704] cma: dma_alloc_from_contiguous(): memory range at c09a2000 is busy, retrying
[  243.726987] alloc_contig_range test_pages_isolated(16400, 16f00) failed
[  243.733587] cma: dma_alloc_from_contiguous(): memory range at c09a4000 is busy, retrying
[  243.741877] alloc_contig_range test_pages_isolated(16800, 17000) failed
[  243.748515] cma: dma_alloc_from_contiguous(): memory range at c09a6000 is busy, retrying
[  243.756801] alloc_contig_range test_pages_isolated(16800, 17100) failed
[  243.763402] cma: dma_alloc_from_contiguous(): memory range at c09a8000 is busy, retrying
[  243.771692] alloc_contig_range test_pages_isolated(16800, 17200) failed
[  243.778308] cma: dma_alloc_from_contiguous(): memory range at c09aa000 is busy, retrying
[  243.786592] alloc_contig_range test_pages_isolated(16800, 17300) failed
[  243.793193] cma: dma_alloc_from_contiguous(): memory range at c09ac000 is busy, retrying
[  243.801480] alloc_contig_range test_pages_isolated(16c00, 17400) failed
[  243.808096] cma: dma_alloc_from_contiguous(): memory range at c09ae000 is busy, retrying
[  243.816362] alloc_contig_range test_pages_isolated(16c00, 17500) failed
[  243.822981] cma: dma_alloc_from_contiguous(): memory range at c09b0000 is busy, retrying
[  243.831261] alloc_contig_range test_pages_isolated(16c00, 17600) failed
[  243.837880] cma: dma_alloc_from_contiguous(): memory range at c09b2000 is busy, retrying
[  243.846147] alloc_contig_range test_pages_isolated(16c00, 17700) failed
[  243.852766] cma: dma_alloc_from_contiguous(): memory range at c09b4000 is busy, retrying
[  243.861044] alloc_contig_range test_pages_isolated(17000, 17800) failed
[  243.867663] cma: dma_alloc_from_contiguous(): memory range at c09b6000 is busy, retrying
[  243.875930] alloc_contig_range test_pages_isolated(17000, 17900) failed
[  243.882550] cma: dma_alloc_from_contiguous(): memory range at c09b8000 is busy, retrying
[  243.890831] alloc_contig_range test_pages_isolated(17000, 17a00) failed
[  243.897457] cma: dma_alloc_from_contiguous(): memory range at c09ba000 is busy, retrying
[  243.905730] alloc_contig_range test_pages_isolated(17000, 17b00) failed
[  243.912350] cma: dma_alloc_from_contiguous(): memory range at c09bc000 is busy, retrying
[  243.920628] alloc_contig_range test_pages_isolated(17400, 17c00) failed
[  243.927245] cma: dma_alloc_from_contiguous(): memory range at c09be000 is busy, retrying
[  243.935513] alloc_contig_range test_pages_isolated(17400, 17d00) failed
[  243.942132] cma: dma_alloc_from_contiguous(): memory range at c09c0000 is busy, retrying
[  243.950411] alloc_contig_range test_pages_isolated(17400, 17e00) failed
[  243.957032] cma: dma_alloc_from_contiguous(): memory range at c09c2000 is busy, retrying
[  243.965475] alloc_contig_range test_pages_isolated(17400, 17f00) failed
[  243.972097] cma: dma_alloc_from_contiguous(): memory range at c09c4000 is busy, retrying
[  243.980377] alloc_contig_range test_pages_isolated(17800, 18000) failed
[  243.986995] cma: dma_alloc_from_contiguous(): memory range at c09c6000 is busy, retrying
[  243.995265] alloc_contig_range test_pages_isolated(17800, 18100) failed
[  244.001883] cma: dma_alloc_from_contiguous(): memory range at c09c8000 is busy, retrying
[  244.010163] alloc_contig_range test_pages_isolated(17800, 18200) failed
[  244.016797] cma: dma_alloc_from_contiguous(): memory range at c09ca000 is busy, retrying
[  244.025065] alloc_contig_range test_pages_isolated(17800, 18300) failed
[  244.032048] cma: dma_alloc_from_contiguous(): memory range at c09cc000 is busy, retrying
[  244.040371] alloc_contig_range test_pages_isolated(17c00, 18400) failed
[  244.047012] cma: dma_alloc_from_contiguous(): memory range at c09ce000 is busy, retrying
[  244.055282] alloc_contig_range test_pages_isolated(17c00, 18500) failed
[  244.061984] cma: dma_alloc_from_contiguous(): memory range at c09d0000 is busy, retrying
[  244.070292] alloc_contig_range test_pages_isolated(17c00, 18600) failed
[  244.076912] cma: dma_alloc_from_contiguous(): memory range at c09d2000 is busy, retrying
[  244.085180] alloc_contig_range test_pages_isolated(17c00, 18700) failed
[  244.091797] cma: dma_alloc_from_contiguous(): memory range at c09d4000 is busy, retrying
[  244.100092] alloc_contig_range test_pages_isolated(18000, 18800) failed
[  244.106709] cma: dma_alloc_from_contiguous(): memory range at c09d6000 is busy, retrying
[  244.114976] alloc_contig_range test_pages_isolated(18000, 18900) failed
[  244.121597] cma: dma_alloc_from_contiguous(): memory range at c09d8000 is busy, retrying
[  244.129878] alloc_contig_range test_pages_isolated(18000, 18a00) failed
[  244.136498] cma: dma_alloc_from_contiguous(): memory range at c09da000 is busy, retrying
[  244.144764] alloc_contig_range test_pages_isolated(18000, 18b00) failed
[  244.151382] cma: dma_alloc_from_contiguous(): memory range at c09dc000 is busy, retrying
[  244.159808] alloc_contig_range test_pages_isolated(18400, 18c00) failed
[  244.166407] cma: dma_alloc_from_contiguous(): memory range at c09de000 is busy, retrying
[  244.174701] alloc_contig_range test_pages_isolated(18400, 18d00) failed
[  244.181315] cma: dma_alloc_from_contiguous(): memory range at c09e0000 is busy, retrying
[  244.189594] alloc_contig_range test_pages_isolated(18400, 18e00) failed
[  244.196195] cma: dma_alloc_from_contiguous(): memory range at c09e2000 is busy, retrying
[  244.204479] alloc_contig_range test_pages_isolated(18400, 18f00) failed
[  244.211093] cma: dma_alloc_from_contiguous(): memory range at c09e4000 is busy, retrying
[  244.219370] alloc_contig_range test_pages_isolated(18800, 19000) failed
[  244.225969] cma: dma_alloc_from_contiguous(): memory range at c09e6000 is busy, retrying
[  244.234253] alloc_contig_range test_pages_isolated(18800, 19100) failed
[  244.240865] cma: dma_alloc_from_contiguous(): memory range at c09e8000 is busy, retrying
[  244.249141] alloc_contig_range test_pages_isolated(18800, 19200) failed
[  244.255742] cma: dma_alloc_from_contiguous(): memory range at c09ea000 is busy, retrying
[  244.264140] alloc_contig_range test_pages_isolated(18800, 19300) failed
[  244.270759] cma: dma_alloc_from_contiguous(): memory range at c09ec000 is busy, retrying
[  244.279036] alloc_contig_range test_pages_isolated(18c00, 19400) failed
[  244.285636] cma: dma_alloc_from_contiguous(): memory range at c09ee000 is busy, retrying
[  244.293914] alloc_contig_range test_pages_isolated(18c00, 19500) failed
[  244.300539] cma: dma_alloc_from_contiguous(): memory range at c09f0000 is busy, retrying
[  244.308817] alloc_contig_range test_pages_isolated(18c00, 19600) failed
[  244.315417] cma: dma_alloc_from_contiguous(): memory range at c09f2000 is busy, retrying
[  244.323697] alloc_contig_range test_pages_isolated(18c00, 19700) failed
[  244.330314] cma: dma_alloc_from_contiguous(): memory range at c09f4000 is busy, retrying
[  244.338588] alloc_contig_range test_pages_isolated(19000, 19800) failed
[  244.345188] cma: dma_alloc_from_contiguous(): memory range at c09f6000 is busy, retrying
[  244.353486] alloc_contig_range test_pages_isolated(19000, 19900) failed
[  244.360276] cma: dma_alloc_from_contiguous(): memory range at c09f8000 is busy, retrying
[  244.368588] alloc_contig_range test_pages_isolated(19000, 19a00) failed
[  244.375190] cma: dma_alloc_from_contiguous(): memory range at c09fa000 is busy, retrying
[  244.383476] alloc_contig_range test_pages_isolated(19000, 19b00) failed
[  244.390090] cma: dma_alloc_from_contiguous(): memory range at c09fc000 is busy, retrying
[  244.398373] alloc_contig_range test_pages_isolated(19400, 19c00) failed
[  244.404972] cma: dma_alloc_from_contiguous(): memory range at c09fe000 is busy, retrying
[  244.413254] alloc_contig_range test_pages_isolated(19400, 19d00) failed
[  244.419867] cma: dma_alloc_from_contiguous(): memory range at c0a00000 is busy, retrying
[  244.428143] alloc_contig_range test_pages_isolated(19400, 19e00) failed
[  244.434743] cma: dma_alloc_from_contiguous(): memory range at c0a02000 is busy, retrying
[  244.443022] alloc_contig_range test_pages_isolated(19400, 19f00) failed
[  244.449635] cma: dma_alloc_from_contiguous(): memory range at c0a04000 is busy, retrying
[  244.457999] alloc_contig_range test_pages_isolated(19800, 1a000) failed
[  244.464598] cma: dma_alloc_from_contiguous(): memory range at c0a06000 is busy, retrying
[  244.472877] alloc_contig_range test_pages_isolated(19800, 1a100) failed
[  244.479489] cma: dma_alloc_from_contiguous(): memory range at c0a08000 is busy, retrying
[  244.487764] alloc_contig_range test_pages_isolated(19800, 1a200) failed
[  244.494364] cma: dma_alloc_from_contiguous(): memory range at c0a0a000 is busy, retrying
[  244.502651] alloc_contig_range test_pages_isolated(19800, 1a300) failed
[  244.509265] cma: dma_alloc_from_contiguous(): memory range at c0a0c000 is busy, retrying
[  244.517540] alloc_contig_range test_pages_isolated(19c00, 1a400) failed
[  244.524141] cma: dma_alloc_from_contiguous(): memory range at c0a0e000 is busy, retrying
[  244.532419] alloc_contig_range test_pages_isolated(19c00, 1a500) failed
[  244.539032] cma: dma_alloc_from_contiguous(): memory range at c0a10000 is busy, retrying
[  244.547308] alloc_contig_range test_pages_isolated(19c00, 1a600) failed
[  244.553908] cma: dma_alloc_from_contiguous(): memory range at c0a12000 is busy, retrying
[  244.562331] alloc_contig_range test_pages_isolated(19c00, 1a700) failed
[  244.568945] cma: dma_alloc_from_contiguous(): memory range at c0a14000 is busy, retrying
[  244.577219] alloc_contig_range test_pages_isolated(1a000, 1a800) failed
[  244.583818] cma: dma_alloc_from_contiguous(): memory range at c0a16000 is busy, retrying
[  244.592096] alloc_contig_range test_pages_isolated(1a000, 1a900) failed
[  244.598710] cma: dma_alloc_from_contiguous(): memory range at c0a18000 is busy, retrying
[  244.606985] alloc_contig_range test_pages_isolated(1a000, 1aa00) failed
[  244.613585] cma: dma_alloc_from_contiguous(): memory range at c0a1a000 is busy, retrying
[  244.621863] alloc_contig_range test_pages_isolated(1a000, 1ab00) failed
[  244.628476] cma: dma_alloc_from_contiguous(): memory range at c0a1c000 is busy, retrying
[  244.636751] alloc_contig_range test_pages_isolated(1a400, 1ac00) failed
[  244.643350] cma: dma_alloc_from_contiguous(): memory range at c0a1e000 is busy, retrying
[  244.651651] alloc_contig_range test_pages_isolated(1a400, 1ad00) failed
[  244.658378] cma: dma_alloc_from_contiguous(): memory range at c0a20000 is busy, retrying
[  244.666668] alloc_contig_range test_pages_isolated(1a400, 1ae00) failed
[  244.673270] cma: dma_alloc_from_contiguous(): memory range at c0a22000 is busy, retrying
[  244.681549] alloc_contig_range test_pages_isolated(1a400, 1af00) failed
[  244.688163] cma: dma_alloc_from_contiguous(): memory range at c0a24000 is busy, retrying
[  244.696447] alloc_contig_range test_pages_isolated(1a800, 1b000) failed
[  244.703046] cma: dma_alloc_from_contiguous(): memory range at c0a26000 is busy, retrying
[  244.711324] alloc_contig_range test_pages_isolated(1a800, 1b100) failed
[  244.717938] cma: dma_alloc_from_contiguous(): memory range at c0a28000 is busy, retrying
[  244.726205] alloc_contig_range test_pages_isolated(1a800, 1b200) failed
[  244.732820] cma: dma_alloc_from_contiguous(): memory range at c0a2a000 is busy, retrying
[  244.741094] alloc_contig_range test_pages_isolated(1a800, 1b300) failed
[  244.747709] cma: dma_alloc_from_contiguous(): memory range at c0a2c000 is busy, retrying
[  244.755973] alloc_contig_range test_pages_isolated(1ac00, 1b400) failed
[  244.762768] cma: dma_alloc_from_contiguous(): memory range at c0a2e000 is busy, retrying
[  244.771060] alloc_contig_range test_pages_isolated(1ac00, 1b500) failed
[  244.777675] cma: dma_alloc_from_contiguous(): memory range at c0a30000 is busy, retrying
[  244.785941] alloc_contig_range test_pages_isolated(1ac00, 1b600) failed
[  244.792556] cma: dma_alloc_from_contiguous(): memory range at c0a32000 is busy, retrying
[  244.800831] alloc_contig_range test_pages_isolated(1ac00, 1b700) failed
[  244.807445] cma: dma_alloc_from_contiguous(): memory range at c0a34000 is busy, retrying
[  244.815708] alloc_contig_range test_pages_isolated(1b000, 1b800) failed
[  244.822322] cma: dma_alloc_from_contiguous(): memory range at c0a36000 is busy, retrying
[  244.830595] alloc_contig_range test_pages_isolated(1b000, 1b900) failed
[  244.837211] cma: dma_alloc_from_contiguous(): memory range at c0a38000 is busy, retrying
[  244.845478] alloc_contig_range test_pages_isolated(1b000, 1ba00) failed
[  244.852094] cma: dma_alloc_from_contiguous(): memory range at c0a3a000 is busy, retrying
[  244.860511] alloc_contig_range test_pages_isolated(1b000, 1bb00) failed
[  244.867126] cma: dma_alloc_from_contiguous(): memory range at c0a3c000 is busy, retrying
[  244.875390] alloc_contig_range test_pages_isolated(1b400, 1bc00) failed
[  244.882004] cma: dma_alloc_from_contiguous(): memory range at c0a3e000 is busy, retrying
[  244.890276] alloc_contig_range test_pages_isolated(1b400, 1bd00) failed
[  244.896899] cma: dma_alloc_from_contiguous(): memory range at c0a40000 is busy, retrying
[  244.905163] alloc_contig_range test_pages_isolated(1b400, 1be00) failed
[  244.911778] cma: dma_alloc_from_contiguous(): memory range at c0a42000 is busy, retrying
[  244.920053] alloc_contig_range test_pages_isolated(1b400, 1bf00) failed
[  244.926668] cma: dma_alloc_from_contiguous(): memory range at c0a44000 is busy, retrying
[  244.934933] alloc_contig_range test_pages_isolated(1b800, 1c000) failed
[  244.941546] cma: dma_alloc_from_contiguous(): memory range at c0a46000 is busy, retrying
[  244.949842] alloc_contig_range test_pages_isolated(1b800, 1c100) failed
[  244.956543] cma: dma_alloc_from_contiguous(): memory range at c0a48000 is busy, retrying
[  244.964818] alloc_contig_range test_pages_isolated(1b800, 1c200) failed
[  244.971435] cma: dma_alloc_from_contiguous(): memory range at c0a4a000 is busy, retrying
[  244.979709] alloc_contig_range test_pages_isolated(1b800, 1c300) failed
[  244.986309] cma: dma_alloc_from_contiguous(): memory range at c0a4c000 is busy, retrying
[  244.994586] alloc_contig_range test_pages_isolated(1bc00, 1c400) failed
[  245.001196] cma: dma_alloc_from_contiguous(): memory range at c0a4e000 is busy, retrying
[  245.009473] alloc_contig_range test_pages_isolated(1bc00, 1c500) failed
[  245.016073] cma: dma_alloc_from_contiguous(): memory range at c0a50000 is busy, retrying
[  245.024366] alloc_contig_range test_pages_isolated(1bc00, 1c600) failed
[  245.030980] cma: dma_alloc_from_contiguous(): memory range at c0a52000 is busy, retrying
[  245.039256] alloc_contig_range test_pages_isolated(1bc00, 1c700) failed
[  245.045858] cma: dma_alloc_from_contiguous(): memory range at c0a54000 is busy, retrying
[  245.054135] alloc_contig_range test_pages_isolated(1c000, 1c800) failed
[  245.060929] cma: dma_alloc_from_contiguous(): memory range at c0a56000 is busy, retrying
[  245.069224] alloc_contig_range test_pages_isolated(1c000, 1c900) failed
[  245.075825] cma: dma_alloc_from_contiguous(): memory range at c0a58000 is busy, retrying
[  245.084106] alloc_contig_range test_pages_isolated(1c000, 1ca00) failed
[  245.090719] cma: dma_alloc_from_contiguous(): memory range at c0a5a000 is busy, retrying
[  245.099001] alloc_contig_range test_pages_isolated(1c000, 1cb00) failed
[  245.105602] cma: dma_alloc_from_contiguous(): memory range at c0a5c000 is busy, retrying
[  245.113882] alloc_contig_range test_pages_isolated(1c400, 1cc00) failed
[  245.120494] cma: dma_alloc_from_contiguous(): memory range at c0a5e000 is busy, retrying
[  245.128773] alloc_contig_range test_pages_isolated(1c400, 1cd00) failed
[  245.135372] cma: dma_alloc_from_contiguous(): memory range at c0a60000 is busy, retrying
[  245.143653] alloc_contig_range test_pages_isolated(1c400, 1ce00) failed
[  245.150267] cma: dma_alloc_from_contiguous(): memory range at c0a62000 is busy, retrying
[  245.158624] alloc_contig_range test_pages_isolated(1c400, 1cf00) failed
[  245.165224] cma: dma_alloc_from_contiguous(): memory range at c0a64000 is busy, retrying
[  245.173505] alloc_contig_range test_pages_isolated(1c800, 1d000) failed
[  245.180118] cma: dma_alloc_from_contiguous(): memory range at c0a66000 is busy, retrying
[  245.188393] alloc_contig_range test_pages_isolated(1c800, 1d100) failed
[  245.194995] cma: dma_alloc_from_contiguous(): memory range at c0a68000 is busy, retrying
[  245.203272] alloc_contig_range test_pages_isolated(1c800, 1d200) failed
[  245.209885] cma: dma_alloc_from_contiguous(): memory range at c0a6a000 is busy, retrying
[  245.218161] alloc_contig_range test_pages_isolated(1c800, 1d300) failed
[  245.224763] cma: dma_alloc_from_contiguous(): memory range at c0a6c000 is busy, retrying
[  245.233041] alloc_contig_range test_pages_isolated(1cc00, 1d400) failed
[  245.239652] cma: dma_alloc_from_contiguous(): memory range at c0a6e000 is busy, retrying
[  245.247948] alloc_contig_range test_pages_isolated(1cc00, 1d500) failed
[  245.254548] cma: dma_alloc_from_contiguous(): memory range at c0a70000 is busy, retrying
[  245.263005] alloc_contig_range test_pages_isolated(1cc00, 1d600) failed
[  245.269621] cma: dma_alloc_from_contiguous(): memory range at c0a72000 is busy, retrying
[  245.277898] alloc_contig_range test_pages_isolated(1cc00, 1d700) failed
[  245.284498] cma: dma_alloc_from_contiguous(): memory range at c0a74000 is busy, retrying
[  245.292775] alloc_contig_range test_pages_isolated(1d000, 1d800) failed
[  245.299394] cma: dma_alloc_from_contiguous(): memory range at c0a76000 is busy, retrying
[  245.307673] alloc_contig_range test_pages_isolated(1d000, 1d900) failed
[  245.314273] cma: dma_alloc_from_contiguous(): memory range at c0a78000 is busy, retrying
[  245.322554] alloc_contig_range test_pages_isolated(1d000, 1da00) failed
[  245.329166] cma: dma_alloc_from_contiguous(): memory range at c0a7a000 is busy, retrying
[  245.337442] alloc_contig_range test_pages_isolated(1d000, 1db00) failed
[  245.344043] cma: dma_alloc_from_contiguous(): memory range at c0a7c000 is busy, retrying
[  245.352319] alloc_contig_range test_pages_isolated(1d400, 1dc00) failed
[  245.359056] cma: dma_alloc_from_contiguous(): memory range at c0a7e000 is busy, retrying
[  245.367347] alloc_contig_range test_pages_isolated(1d400, 1dd00) failed
[  245.373947] cma: dma_alloc_from_contiguous(): memory range at c0a80000 is busy, retrying
[  245.382226] alloc_contig_range test_pages_isolated(1d400, 1de00) failed
[  245.388839] cma: dma_alloc_from_contiguous(): memory range at c0a82000 is busy, retrying
[  245.397114] alloc_contig_range test_pages_isolated(1d400, 1df00) failed
[  245.403714] cma: dma_alloc_from_contiguous(): memory range at c0a84000 is busy, retrying
[  245.411993] alloc_contig_range test_pages_isolated(1d800, 1e000) failed
[  245.418604] cma: dma_alloc_from_contiguous(): memory range at c0a86000 is busy, retrying
[  245.426884] alloc_contig_range test_pages_isolated(1d800, 1e100) failed
[  245.433483] cma: dma_alloc_from_contiguous(): memory range at c0a88000 is busy, retrying
[  245.441763] alloc_contig_range test_pages_isolated(1d800, 1e200) failed
[  245.448375] cma: dma_alloc_from_contiguous(): memory range at c0a8a000 is busy, retrying
[  245.456826] alloc_contig_range test_pages_isolated(1d800, 1e300) failed
[  245.463429] cma: dma_alloc_from_contiguous(): memory range at c0a8c000 is busy, retrying
[  245.471709] alloc_contig_range test_pages_isolated(1dc00, 1e400) failed
[  245.478321] cma: dma_alloc_from_contiguous(): memory range at c0a8e000 is busy, retrying
[  245.486599] alloc_contig_range test_pages_isolated(1dc00, 1e500) failed
[  245.493199] cma: dma_alloc_from_contiguous(): memory range at c0a90000 is busy, retrying
[  245.501487] alloc_contig_range test_pages_isolated(1dc00, 1e600) failed
[  245.508102] cma: dma_alloc_from_contiguous(): memory range at c0a92000 is busy, retrying
[  245.516368] alloc_contig_range test_pages_isolated(1dc00, 1e700) failed
[  245.522982] cma: dma_alloc_from_contiguous(): memory range at c0a94000 is busy, retrying
[  245.531254] alloc_contig_range test_pages_isolated(1e000, 1e800) failed
[  245.537868] cma: dma_alloc_from_contiguous(): memory range at c0a96000 is busy, retrying
[  245.546134] alloc_contig_range test_pages_isolated(1e000, 1e900) failed
[  245.552768] cma: dma_alloc_from_contiguous(): memory range at c0a98000 is busy, retrying
[  245.561186] alloc_contig_range test_pages_isolated(1e000, 1ea00) failed
[  245.567802] cma: dma_alloc_from_contiguous(): memory range at c0a9a000 is busy, retrying
[  245.576067] alloc_contig_range test_pages_isolated(1e000, 1eb00) failed
[  245.582682] cma: dma_alloc_from_contiguous(): memory range at c0a9c000 is busy, retrying
[  245.590957] alloc_contig_range test_pages_isolated(1e400, 1ec00) failed
[  245.597570] cma: dma_alloc_from_contiguous(): memory range at c0a9e000 is busy, retrying
[  245.605838] alloc_contig_range test_pages_isolated(1e400, 1ed00) failed
[  245.612452] cma: dma_alloc_from_contiguous(): memory range at c0aa0000 is busy, retrying
[  245.620725] alloc_contig_range test_pages_isolated(1e400, 1ee00) failed
[  245.627340] cma: dma_alloc_from_contiguous(): memory range at c0aa2000 is busy, retrying
[  245.635605] alloc_contig_range test_pages_isolated(1e400, 1ef00) failed
[  245.642219] cma: dma_alloc_from_contiguous(): memory range at c0aa4000 is busy, retrying
[  245.650491] alloc_contig_range test_pages_isolated(1e800, 1f000) failed
[  245.657232] cma: dma_alloc_from_contiguous(): memory range at c0aa6000 is busy, retrying
[  245.665512] alloc_contig_range test_pages_isolated(1e800, 1f100) failed
[  245.672127] cma: dma_alloc_from_contiguous(): memory range at c0aa8000 is busy, retrying
[  245.680404] alloc_contig_range test_pages_isolated(1e800, 1f200) failed
[  245.687020] cma: dma_alloc_from_contiguous(): memory range at c0aaa000 is busy, retrying
[  245.695284] alloc_contig_range test_pages_isolated(1e800, 1f300) failed
[  245.701906] cma: dma_alloc_from_contiguous(): memory range at c0aac000 is busy, retrying
[  245.710181] alloc_contig_range test_pages_isolated(1ec00, 1f400) failed
[  245.716794] cma: dma_alloc_from_contiguous(): memory range at c0aae000 is busy, retrying
[  245.725058] alloc_contig_range test_pages_isolated(1ec00, 1f500) failed
[  245.731673] cma: dma_alloc_from_contiguous(): memory range at c0ab0000 is busy, retrying
[  245.739947] alloc_contig_range test_pages_isolated(1ec00, 1f600) failed
[  245.746561] cma: dma_alloc_from_contiguous(): memory range at c0ab2000 is busy, retrying
[  245.754826] alloc_contig_range test_pages_isolated(1ec00, 1f700) failed
[  245.761573] cma: dma_alloc_from_contiguous(): memory range at c0ab4000 is busy, retrying
[  245.769858] alloc_contig_range test_pages_isolated(1f000, 1f800) failed
[  245.776472] cma: dma_alloc_from_contiguous(): memory range at c0ab6000 is busy, retrying
[  245.784542] cma: dma_alloc_from_contiguous(): returned   (null)
[  245.790457] failed to allocate 8388608 bytes
[  245.794717] cma: dma_alloc_from_contiguous(cma cf473fc0, count 4096, align 8)
[  245.802434] alloc_contig_range test_pages_isolated(fc00, 10c00) failed
[  245.808964] cma: dma_alloc_from_contiguous(): memory range at c08ce000 is busy, retrying
[  245.817381] alloc_contig_range test_pages_isolated(fc00, 10d00) failed
[  245.823897] cma: dma_alloc_from_contiguous(): memory range at c08d0000 is busy, retrying
[  245.832311] alloc_contig_range test_pages_isolated(fc00, 10e00) failed
[  245.838839] cma: dma_alloc_from_contiguous(): memory range at c08d2000 is busy, retrying
[  245.847269] alloc_contig_range test_pages_isolated(fc00, 10f00) failed
[  245.853785] cma: dma_alloc_from_contiguous(): memory range at c08d4000 is busy, retrying
[  245.862280] alloc_contig_range test_pages_isolated(10000, 11000) failed
[  245.868901] cma: dma_alloc_from_contiguous(): memory range at c08d6000 is busy, retrying
[  245.877315] alloc_contig_range test_pages_isolated(10000, 11100) failed
[  245.883916] cma: dma_alloc_from_contiguous(): memory range at c08d8000 is busy, retrying
[  245.892328] alloc_contig_range test_pages_isolated(10000, 11200) failed
[  245.898955] cma: dma_alloc_from_contiguous(): memory range at c08da000 is busy, retrying
[  245.907368] alloc_contig_range test_pages_isolated(10000, 11300) failed
[  245.913970] cma: dma_alloc_from_contiguous(): memory range at c08dc000 is busy, retrying
[  245.922381] alloc_contig_range test_pages_isolated(10400, 11400) failed
[  245.928998] cma: dma_alloc_from_contiguous(): memory range at c08de000 is busy, retrying
[  245.937407] alloc_contig_range test_pages_isolated(10400, 11500) failed
[  245.944008] cma: dma_alloc_from_contiguous(): memory range at c08e0000 is busy, retrying
[  245.952421] alloc_contig_range test_pages_isolated(10400, 11600) failed
[  245.959170] cma: dma_alloc_from_contiguous(): memory range at c08e2000 is busy, retrying
[  245.967587] alloc_contig_range test_pages_isolated(10400, 11700) failed
[  245.974189] cma: dma_alloc_from_contiguous(): memory range at c08e4000 is busy, retrying
[  245.982596] alloc_contig_range test_pages_isolated(10800, 11800) failed
[  245.989210] cma: dma_alloc_from_contiguous(): memory range at c08e6000 is busy, retrying
[  245.997618] alloc_contig_range test_pages_isolated(10800, 11900) failed
[  246.004221] cma: dma_alloc_from_contiguous(): memory range at c08e8000 is busy, retrying
[  246.012631] alloc_contig_range test_pages_isolated(10800, 11a00) failed
[  246.019504] cma: dma_alloc_from_contiguous(): memory range at c08ea000 is busy, retrying
[  246.027934] alloc_contig_range test_pages_isolated(10800, 11b00) failed
[  246.034537] cma: dma_alloc_from_contiguous(): memory range at c08ec000 is busy, retrying
[  246.042948] alloc_contig_range test_pages_isolated(10c00, 11c00) failed
[  246.049562] cma: dma_alloc_from_contiguous(): memory range at c08ee000 is busy, retrying
[  246.058065] alloc_contig_range test_pages_isolated(10c00, 11d00) failed
[  246.064667] cma: dma_alloc_from_contiguous(): memory range at c08f0000 is busy, retrying
[  246.073086] alloc_contig_range test_pages_isolated(10c00, 11e00) failed
[  246.079702] cma: dma_alloc_from_contiguous(): memory range at c08f2000 is busy, retrying
[  246.088114] alloc_contig_range test_pages_isolated(10c00, 11f00) failed
[  246.094715] cma: dma_alloc_from_contiguous(): memory range at c08f4000 is busy, retrying
[  246.103164] alloc_contig_range test_pages_isolated(11000, 12000) failed
[  246.109778] cma: dma_alloc_from_contiguous(): memory range at c08f6000 is busy, retrying
[  246.118191] alloc_contig_range test_pages_isolated(11000, 12100) failed
[  246.124792] cma: dma_alloc_from_contiguous(): memory range at c08f8000 is busy, retrying
[  246.133208] alloc_contig_range test_pages_isolated(11000, 12200) failed
[  246.139824] cma: dma_alloc_from_contiguous(): memory range at c08fa000 is busy, retrying
[  246.148254] alloc_contig_range test_pages_isolated(11000, 12300) failed
[  246.154856] cma: dma_alloc_from_contiguous(): memory range at c08fc000 is busy, retrying
[  246.163471] alloc_contig_range test_pages_isolated(11400, 12400) failed
[  246.170091] cma: dma_alloc_from_contiguous(): memory range at c08fe000 is busy, retrying
[  246.178504] alloc_contig_range test_pages_isolated(11400, 12500) failed
[  246.185106] cma: dma_alloc_from_contiguous(): memory range at c0900000 is busy, retrying
[  246.193521] alloc_contig_range test_pages_isolated(11400, 12600) failed
[  246.200141] cma: dma_alloc_from_contiguous(): memory range at c0902000 is busy, retrying
[  246.208552] alloc_contig_range test_pages_isolated(11400, 12700) failed
[  246.215153] cma: dma_alloc_from_contiguous(): memory range at c0904000 is busy, retrying
[  246.223561] alloc_contig_range test_pages_isolated(11800, 12800) failed
[  246.230178] cma: dma_alloc_from_contiguous(): memory range at c0906000 is busy, retrying
[  246.238587] alloc_contig_range test_pages_isolated(11800, 12900) failed
[  246.245189] cma: dma_alloc_from_contiguous(): memory range at c0908000 is busy, retrying
[  246.253601] alloc_contig_range test_pages_isolated(11800, 12a00) failed
[  246.260289] cma: dma_alloc_from_contiguous(): memory range at c090a000 is busy, retrying
[  246.268707] alloc_contig_range test_pages_isolated(11800, 12b00) failed
[  246.275310] cma: dma_alloc_from_contiguous(): memory range at c090c000 is busy, retrying
[  246.283722] alloc_contig_range test_pages_isolated(11c00, 12c00) failed
[  246.290337] cma: dma_alloc_from_contiguous(): memory range at c090e000 is busy, retrying
[  246.298755] alloc_contig_range test_pages_isolated(11c00, 12d00) failed
[  246.305357] cma: dma_alloc_from_contiguous(): memory range at c0910000 is busy, retrying
[  246.313769] alloc_contig_range test_pages_isolated(11c00, 12e00) failed
[  246.320385] cma: dma_alloc_from_contiguous(): memory range at c0912000 is busy, retrying
[  246.328795] alloc_contig_range test_pages_isolated(11c00, 12f00) failed
[  246.335396] cma: dma_alloc_from_contiguous(): memory range at c0914000 is busy, retrying
[  246.343805] alloc_contig_range test_pages_isolated(12000, 13000) failed
[  246.350419] cma: dma_alloc_from_contiguous(): memory range at c0916000 is busy, retrying
[  246.358969] alloc_contig_range test_pages_isolated(12000, 13100) failed
[  246.365571] cma: dma_alloc_from_contiguous(): memory range at c0918000 is busy, retrying
[  246.373986] alloc_contig_range test_pages_isolated(12000, 13200) failed
[  246.380600] cma: dma_alloc_from_contiguous(): memory range at c091a000 is busy, retrying
[  246.389011] alloc_contig_range test_pages_isolated(12000, 13300) failed
[  246.395614] cma: dma_alloc_from_contiguous(): memory range at c091c000 is busy, retrying
[  246.404025] alloc_contig_range test_pages_isolated(12400, 13400) failed
[  246.410640] cma: dma_alloc_from_contiguous(): memory range at c091e000 is busy, retrying
[  246.419048] alloc_contig_range test_pages_isolated(12400, 13500) failed
[  246.425649] cma: dma_alloc_from_contiguous(): memory range at c0920000 is busy, retrying
[  246.434063] alloc_contig_range test_pages_isolated(12400, 13600) failed
[  246.440677] cma: dma_alloc_from_contiguous(): memory range at c0922000 is busy, retrying
[  246.449104] alloc_contig_range test_pages_isolated(12400, 13700) failed
[  246.455706] cma: dma_alloc_from_contiguous(): memory range at c0924000 is busy, retrying
[  246.464232] alloc_contig_range test_pages_isolated(12800, 13800) failed
[  246.470851] cma: dma_alloc_from_contiguous(): memory range at c0926000 is busy, retrying
[  246.479265] alloc_contig_range test_pages_isolated(12800, 13900) failed
[  246.485867] cma: dma_alloc_from_contiguous(): memory range at c0928000 is busy, retrying
[  246.494279] alloc_contig_range test_pages_isolated(12800, 13a00) failed
[  246.500906] cma: dma_alloc_from_contiguous(): memory range at c092a000 is busy, retrying
[  246.509317] alloc_contig_range test_pages_isolated(12800, 13b00) failed
[  246.515918] cma: dma_alloc_from_contiguous(): memory range at c092c000 is busy, retrying
[  246.524331] alloc_contig_range test_pages_isolated(12c00, 13c00) failed
[  246.530948] cma: dma_alloc_from_contiguous(): memory range at c092e000 is busy, retrying
[  246.539359] alloc_contig_range test_pages_isolated(12c00, 13d00) failed
[  246.545960] cma: dma_alloc_from_contiguous(): memory range at c0930000 is busy, retrying
[  246.554374] alloc_contig_range test_pages_isolated(12c00, 13e00) failed
[  246.561168] cma: dma_alloc_from_contiguous(): memory range at c0932000 is busy, retrying
[  246.569597] alloc_contig_range test_pages_isolated(12c00, 13f00) failed
[  246.576200] cma: dma_alloc_from_contiguous(): memory range at c0934000 is busy, retrying
[  246.584612] alloc_contig_range test_pages_isolated(13000, 14000) failed
[  246.591225] cma: dma_alloc_from_contiguous(): memory range at c0936000 is busy, retrying
[  246.599633] alloc_contig_range test_pages_isolated(13000, 14100) failed
[  246.606235] cma: dma_alloc_from_contiguous(): memory range at c0938000 is busy, retrying
[  246.614644] alloc_contig_range test_pages_isolated(13000, 14200) failed
[  246.621258] cma: dma_alloc_from_contiguous(): memory range at c093a000 is busy, retrying
[  246.629668] alloc_contig_range test_pages_isolated(13000, 14300) failed
[  246.636272] cma: dma_alloc_from_contiguous(): memory range at c093c000 is busy, retrying
[  246.644683] alloc_contig_range test_pages_isolated(13400, 14400) failed
[  246.651296] cma: dma_alloc_from_contiguous(): memory range at c093e000 is busy, retrying
[  246.659796] alloc_contig_range test_pages_isolated(13400, 14500) failed
[  246.666398] cma: dma_alloc_from_contiguous(): memory range at c0940000 is busy, retrying
[  246.674812] alloc_contig_range test_pages_isolated(13400, 14600) failed
[  246.681426] cma: dma_alloc_from_contiguous(): memory range at c0942000 is busy, retrying
[  246.689837] alloc_contig_range test_pages_isolated(13400, 14700) failed
[  246.696459] cma: dma_alloc_from_contiguous(): memory range at c0944000 is busy, retrying
[  246.704856] alloc_contig_range test_pages_isolated(13800, 14800) failed
[  246.711472] cma: dma_alloc_from_contiguous(): memory range at c0946000 is busy, retrying
[  246.719879] alloc_contig_range test_pages_isolated(13800, 14900) failed
[  246.726497] cma: dma_alloc_from_contiguous(): memory range at c0948000 is busy, retrying
[  246.734895] alloc_contig_range test_pages_isolated(13800, 14a00) failed
[  246.741512] cma: dma_alloc_from_contiguous(): memory range at c094a000 is busy, retrying
[  246.749937] alloc_contig_range test_pages_isolated(13800, 14b00) failed
[  246.756747] cma: dma_alloc_from_contiguous(): memory range at c094c000 is busy, retrying
[  246.765155] alloc_contig_range test_pages_isolated(13c00, 14c00) failed
[  246.771775] cma: dma_alloc_from_contiguous(): memory range at c094e000 is busy, retrying
[  246.780187] alloc_contig_range test_pages_isolated(13c00, 14d00) failed
[  246.786804] cma: dma_alloc_from_contiguous(): memory range at c0950000 is busy, retrying
[  246.795204] alloc_contig_range test_pages_isolated(13c00, 14e00) failed
[  246.801825] cma: dma_alloc_from_contiguous(): memory range at c0952000 is busy, retrying
[  246.810238] alloc_contig_range test_pages_isolated(13c00, 14f00) failed
[  246.816856] cma: dma_alloc_from_contiguous(): memory range at c0954000 is busy, retrying
[  246.825254] alloc_contig_range test_pages_isolated(14000, 15000) failed
[  246.831872] cma: dma_alloc_from_contiguous(): memory range at c0956000 is busy, retrying
[  246.840282] alloc_contig_range test_pages_isolated(14000, 15100) failed
[  246.846899] cma: dma_alloc_from_contiguous(): memory range at c0958000 is busy, retrying
[  246.855300] alloc_contig_range test_pages_isolated(14000, 15200) failed
[  246.861998] cma: dma_alloc_from_contiguous(): memory range at c095a000 is busy, retrying
[  246.870423] alloc_contig_range test_pages_isolated(14000, 15300) failed
[  246.877040] cma: dma_alloc_from_contiguous(): memory range at c095c000 is busy, retrying
[  246.885437] alloc_contig_range test_pages_isolated(14400, 15400) failed
[  246.892053] cma: dma_alloc_from_contiguous(): memory range at c095e000 is busy, retrying
[  246.900473] alloc_contig_range test_pages_isolated(14400, 15500) failed
[  246.907089] cma: dma_alloc_from_contiguous(): memory range at c0960000 is busy, retrying
[  246.915490] alloc_contig_range test_pages_isolated(14400, 15600) failed
[  246.922107] cma: dma_alloc_from_contiguous(): memory range at c0962000 is busy, retrying
[  246.930516] alloc_contig_range test_pages_isolated(14400, 15700) failed
[  246.937134] cma: dma_alloc_from_contiguous(): memory range at c0964000 is busy, retrying
[  246.945531] alloc_contig_range test_pages_isolated(14800, 15800) failed
[  246.952147] cma: dma_alloc_from_contiguous(): memory range at c0966000 is busy, retrying
[  246.960692] alloc_contig_range test_pages_isolated(14800, 15900) failed
[  246.967309] cma: dma_alloc_from_contiguous(): memory range at c0968000 is busy, retrying
[  246.975711] alloc_contig_range test_pages_isolated(14800, 15a00) failed
[  246.982327] cma: dma_alloc_from_contiguous(): memory range at c096a000 is busy, retrying
[  246.990735] alloc_contig_range test_pages_isolated(14800, 15b00) failed
[  246.997352] cma: dma_alloc_from_contiguous(): memory range at c096c000 is busy, retrying
[  247.005751] alloc_contig_range test_pages_isolated(14c00, 15c00) failed
[  247.012368] cma: dma_alloc_from_contiguous(): memory range at c096e000 is busy, retrying
[  247.020787] alloc_contig_range test_pages_isolated(14c00, 15d00) failed
[  247.027404] cma: dma_alloc_from_contiguous(): memory range at c0970000 is busy, retrying
[  247.035803] alloc_contig_range test_pages_isolated(14c00, 15e00) failed
[  247.042419] cma: dma_alloc_from_contiguous(): memory range at c0972000 is busy, retrying
[  247.050846] alloc_contig_range test_pages_isolated(14c00, 15f00) failed
[  247.057534] cma: dma_alloc_from_contiguous(): memory range at c0974000 is busy, retrying
[  247.065941] alloc_contig_range test_pages_isolated(15000, 16000) failed
[  247.072557] cma: dma_alloc_from_contiguous(): memory range at c0976000 is busy, retrying
[  247.080963] alloc_contig_range test_pages_isolated(15000, 16100) failed
[  247.087579] cma: dma_alloc_from_contiguous(): memory range at c0978000 is busy, retrying
[  247.095976] alloc_contig_range test_pages_isolated(15000, 16200) failed
[  247.102600] cma: dma_alloc_from_contiguous(): memory range at c097a000 is busy, retrying
[  247.111009] alloc_contig_range test_pages_isolated(15000, 16300) failed
[  247.117626] cma: dma_alloc_from_contiguous(): memory range at c097c000 is busy, retrying
[  247.126023] alloc_contig_range test_pages_isolated(15400, 16400) failed
[  247.132638] cma: dma_alloc_from_contiguous(): memory range at c097e000 is busy, retrying
[  247.141045] alloc_contig_range test_pages_isolated(15400, 16500) failed
[  247.147661] cma: dma_alloc_from_contiguous(): memory range at c0980000 is busy, retrying
[  247.156059] alloc_contig_range test_pages_isolated(15400, 16600) failed
[  247.162890] cma: dma_alloc_from_contiguous(): memory range at c0982000 is busy, retrying
[  247.171314] alloc_contig_range test_pages_isolated(15400, 16700) failed
[  247.177931] cma: dma_alloc_from_contiguous(): memory range at c0984000 is busy, retrying
[  247.186329] alloc_contig_range test_pages_isolated(15800, 16800) failed
[  247.192945] cma: dma_alloc_from_contiguous(): memory range at c0986000 is busy, retrying
[  247.201353] alloc_contig_range test_pages_isolated(15800, 16900) failed
[  247.207970] cma: dma_alloc_from_contiguous(): memory range at c0988000 is busy, retrying
[  247.216369] alloc_contig_range test_pages_isolated(15800, 16a00) failed
[  247.222984] cma: dma_alloc_from_contiguous(): memory range at c098a000 is busy, retrying
[  247.231392] alloc_contig_range test_pages_isolated(15800, 16b00) failed
[  247.238008] cma: dma_alloc_from_contiguous(): memory range at c098c000 is busy, retrying
[  247.246403] alloc_contig_range test_pages_isolated(15c00, 16c00) failed
[  247.253020] cma: dma_alloc_from_contiguous(): memory range at c098e000 is busy, retrying
[  247.261521] alloc_contig_range test_pages_isolated(15c00, 16d00) failed
[  247.268139] cma: dma_alloc_from_contiguous(): memory range at c0990000 is busy, retrying
[  247.276550] alloc_contig_range test_pages_isolated(15c00, 16e00) failed
[  247.283153] cma: dma_alloc_from_contiguous(): memory range at c0992000 is busy, retrying
[  247.291568] alloc_contig_range test_pages_isolated(15c00, 16f00) failed
[  247.298192] cma: dma_alloc_from_contiguous(): memory range at c0994000 is busy, retrying
[  247.306603] alloc_contig_range test_pages_isolated(16000, 17000) failed
[  247.313204] cma: dma_alloc_from_contiguous(): memory range at c0996000 is busy, retrying
[  247.321614] alloc_contig_range test_pages_isolated(16000, 17100) failed
[  247.328229] cma: dma_alloc_from_contiguous(): memory range at c0998000 is busy, retrying
[  247.336643] alloc_contig_range test_pages_isolated(16000, 17200) failed
[  247.343244] cma: dma_alloc_from_contiguous(): memory range at c099a000 is busy, retrying
[  247.351677] alloc_contig_range test_pages_isolated(16000, 17300) failed
[  247.358437] cma: dma_alloc_from_contiguous(): memory range at c099c000 is busy, retrying
[  247.366863] alloc_contig_range test_pages_isolated(16400, 17400) failed
[  247.373464] cma: dma_alloc_from_contiguous(): memory range at c099e000 is busy, retrying
[  247.381897] alloc_contig_range test_pages_isolated(16400, 17500) failed
[  247.388514] cma: dma_alloc_from_contiguous(): memory range at c09a0000 is busy, retrying
[  247.396933] alloc_contig_range test_pages_isolated(16400, 17600) failed
[  247.403534] cma: dma_alloc_from_contiguous(): memory range at c09a2000 is busy, retrying
[  247.411949] alloc_contig_range test_pages_isolated(16400, 17700) failed
[  247.418564] cma: dma_alloc_from_contiguous(): memory range at c09a4000 is busy, retrying
[  247.426975] alloc_contig_range test_pages_isolated(16800, 17800) failed
[  247.433575] cma: dma_alloc_from_contiguous(): memory range at c09a6000 is busy, retrying
[  247.441990] alloc_contig_range test_pages_isolated(16800, 17900) failed
[  247.448606] cma: dma_alloc_from_contiguous(): memory range at c09a8000 is busy, retrying
[  247.457154] alloc_contig_range test_pages_isolated(16800, 17a00) failed
[  247.463756] cma: dma_alloc_from_contiguous(): memory range at c09aa000 is busy, retrying
[  247.472168] alloc_contig_range test_pages_isolated(16800, 17b00) failed
[  247.478783] cma: dma_alloc_from_contiguous(): memory range at c09ac000 is busy, retrying
[  247.487189] alloc_contig_range test_pages_isolated(16c00, 17c00) failed
[  247.493791] cma: dma_alloc_from_contiguous(): memory range at c09ae000 is busy, retrying
[  247.502206] alloc_contig_range test_pages_isolated(16c00, 17d00) failed
[  247.508820] cma: dma_alloc_from_contiguous(): memory range at c09b0000 is busy, retrying
[  247.517230] alloc_contig_range test_pages_isolated(16c00, 17e00) failed
[  247.523831] cma: dma_alloc_from_contiguous(): memory range at c09b2000 is busy, retrying
[  247.532244] alloc_contig_range test_pages_isolated(16c00, 17f00) failed
[  247.538858] cma: dma_alloc_from_contiguous(): memory range at c09b4000 is busy, retrying
[  247.547267] alloc_contig_range test_pages_isolated(17000, 18000) failed
[  247.553869] cma: dma_alloc_from_contiguous(): memory range at c09b6000 is busy, retrying
[  247.562419] alloc_contig_range test_pages_isolated(17000, 18100) failed
[  247.569035] cma: dma_alloc_from_contiguous(): memory range at c09b8000 is busy, retrying
[  247.577446] alloc_contig_range test_pages_isolated(17000, 18200) failed
[  247.584048] cma: dma_alloc_from_contiguous(): memory range at c09ba000 is busy, retrying
[  247.592461] alloc_contig_range test_pages_isolated(17000, 18300) failed
[  247.599076] cma: dma_alloc_from_contiguous(): memory range at c09bc000 is busy, retrying
[  247.607485] alloc_contig_range test_pages_isolated(17400, 18400) failed
[  247.614085] cma: dma_alloc_from_contiguous(): memory range at c09be000 is busy, retrying
[  247.622497] alloc_contig_range test_pages_isolated(17400, 18500) failed
[  247.629112] cma: dma_alloc_from_contiguous(): memory range at c09c0000 is busy, retrying
[  247.637522] alloc_contig_range test_pages_isolated(17400, 18600) failed
[  247.644123] cma: dma_alloc_from_contiguous(): memory range at c09c2000 is busy, retrying
[  247.652554] alloc_contig_range test_pages_isolated(17400, 18700) failed
[  247.659292] cma: dma_alloc_from_contiguous(): memory range at c09c4000 is busy, retrying
[  247.667715] alloc_contig_range test_pages_isolated(17800, 18800) failed
[  247.674317] cma: dma_alloc_from_contiguous(): memory range at c09c6000 is busy, retrying
[  247.682727] alloc_contig_range test_pages_isolated(17800, 18900) failed
[  247.689342] cma: dma_alloc_from_contiguous(): memory range at c09c8000 is busy, retrying
[  247.697756] alloc_contig_range test_pages_isolated(17800, 18a00) failed
[  247.704357] cma: dma_alloc_from_contiguous(): memory range at c09ca000 is busy, retrying
[  247.712767] alloc_contig_range test_pages_isolated(17800, 18b00) failed
[  247.719382] cma: dma_alloc_from_contiguous(): memory range at c09cc000 is busy, retrying
[  247.727791] alloc_contig_range test_pages_isolated(17c00, 18c00) failed
[  247.734392] cma: dma_alloc_from_contiguous(): memory range at c09ce000 is busy, retrying
[  247.742805] alloc_contig_range test_pages_isolated(17c00, 18d00) failed
[  247.749419] cma: dma_alloc_from_contiguous(): memory range at c09d0000 is busy, retrying
[  247.757993] alloc_contig_range test_pages_isolated(17c00, 18e00) failed
[  247.764596] cma: dma_alloc_from_contiguous(): memory range at c09d2000 is busy, retrying
[  247.773012] alloc_contig_range test_pages_isolated(17c00, 18f00) failed
[  247.779627] cma: dma_alloc_from_contiguous(): memory range at c09d4000 is busy, retrying
[  247.788036] alloc_contig_range test_pages_isolated(18000, 19000) failed
[  247.794636] cma: dma_alloc_from_contiguous(): memory range at c09d6000 is busy, retrying
[  247.803049] alloc_contig_range test_pages_isolated(18000, 19100) failed
[  247.809663] cma: dma_alloc_from_contiguous(): memory range at c09d8000 is busy, retrying
[  247.818071] alloc_contig_range test_pages_isolated(18000, 19200) failed
[  247.824672] cma: dma_alloc_from_contiguous(): memory range at c09da000 is busy, retrying
[  247.833087] alloc_contig_range test_pages_isolated(18000, 19300) failed
[  247.839702] cma: dma_alloc_from_contiguous(): memory range at c09dc000 is busy, retrying
[  247.848110] alloc_contig_range test_pages_isolated(18400, 19400) failed
[  247.854710] cma: dma_alloc_from_contiguous(): memory range at c09de000 is busy, retrying
[  247.863199] alloc_contig_range test_pages_isolated(18400, 19500) failed
[  247.869816] cma: dma_alloc_from_contiguous(): memory range at c09e0000 is busy, retrying
[  247.878224] alloc_contig_range test_pages_isolated(18400, 19600) failed
[  247.884827] cma: dma_alloc_from_contiguous(): memory range at c09e2000 is busy, retrying
[  247.893235] alloc_contig_range test_pages_isolated(18400, 19700) failed
[  247.899858] cma: dma_alloc_from_contiguous(): memory range at c09e4000 is busy, retrying
[  247.908265] alloc_contig_range test_pages_isolated(18800, 19800) failed
[  247.914866] cma: dma_alloc_from_contiguous(): memory range at c09e6000 is busy, retrying
[  247.923278] alloc_contig_range test_pages_isolated(18800, 19900) failed
[  247.929895] cma: dma_alloc_from_contiguous(): memory range at c09e8000 is busy, retrying
[  247.938305] alloc_contig_range test_pages_isolated(18800, 19a00) failed
[  247.944907] cma: dma_alloc_from_contiguous(): memory range at c09ea000 is busy, retrying
[  247.953333] alloc_contig_range test_pages_isolated(18800, 19b00) failed
[  247.960080] cma: dma_alloc_from_contiguous(): memory range at c09ec000 is busy, retrying
[  247.968498] alloc_contig_range test_pages_isolated(18c00, 19c00) failed
[  247.975099] cma: dma_alloc_from_contiguous(): memory range at c09ee000 is busy, retrying
[  247.983508] alloc_contig_range test_pages_isolated(18c00, 19d00) failed
[  247.990122] cma: dma_alloc_from_contiguous(): memory range at c09f0000 is busy, retrying
[  247.998533] alloc_contig_range test_pages_isolated(18c00, 19e00) failed
[  248.005135] cma: dma_alloc_from_contiguous(): memory range at c09f2000 is busy, retrying
[  248.013548] alloc_contig_range test_pages_isolated(18c00, 19f00) failed
[  248.020542] cma: dma_alloc_from_contiguous(): memory range at c09f4000 is busy, retrying
[  248.028973] alloc_contig_range test_pages_isolated(19000, 1a000) failed
[  248.035576] cma: dma_alloc_from_contiguous(): memory range at c09f6000 is busy, retrying
[  248.043991] alloc_contig_range test_pages_isolated(19000, 1a100) failed
[  248.050606] cma: dma_alloc_from_contiguous(): memory range at c09f8000 is busy, retrying
[  248.059114] alloc_contig_range test_pages_isolated(19000, 1a200) failed
[  248.065716] cma: dma_alloc_from_contiguous(): memory range at c09fa000 is busy, retrying
[  248.074129] alloc_contig_range test_pages_isolated(19000, 1a300) failed
[  248.080744] cma: dma_alloc_from_contiguous(): memory range at c09fc000 is busy, retrying
[  248.089153] alloc_contig_range test_pages_isolated(19400, 1a400) failed
[  248.095753] cma: dma_alloc_from_contiguous(): memory range at c09fe000 is busy, retrying
[  248.104176] alloc_contig_range test_pages_isolated(19400, 1a500) failed
[  248.110792] cma: dma_alloc_from_contiguous(): memory range at c0a00000 is busy, retrying
[  248.119202] alloc_contig_range test_pages_isolated(19400, 1a600) failed
[  248.125803] cma: dma_alloc_from_contiguous(): memory range at c0a02000 is busy, retrying
[  248.134207] alloc_contig_range test_pages_isolated(19400, 1a700) failed
[  248.140822] cma: dma_alloc_from_contiguous(): memory range at c0a04000 is busy, retrying
[  248.149224] alloc_contig_range test_pages_isolated(19800, 1a800) failed
[  248.155825] cma: dma_alloc_from_contiguous(): memory range at c0a06000 is busy, retrying
[  248.164459] alloc_contig_range test_pages_isolated(19800, 1a900) failed
[  248.171076] cma: dma_alloc_from_contiguous(): memory range at c0a08000 is busy, retrying
[  248.179482] alloc_contig_range test_pages_isolated(19800, 1aa00) failed
[  248.186085] cma: dma_alloc_from_contiguous(): memory range at c0a0a000 is busy, retrying
[  248.194499] alloc_contig_range test_pages_isolated(19800, 1ab00) failed
[  248.201114] cma: dma_alloc_from_contiguous(): memory range at c0a0c000 is busy, retrying
[  248.209522] alloc_contig_range test_pages_isolated(19c00, 1ac00) failed
[  248.216124] cma: dma_alloc_from_contiguous(): memory range at c0a0e000 is busy, retrying
[  248.224538] alloc_contig_range test_pages_isolated(19c00, 1ad00) failed
[  248.231151] cma: dma_alloc_from_contiguous(): memory range at c0a10000 is busy, retrying
[  248.239562] alloc_contig_range test_pages_isolated(19c00, 1ae00) failed
[  248.246164] cma: dma_alloc_from_contiguous(): memory range at c0a12000 is busy, retrying
[  248.254596] alloc_contig_range test_pages_isolated(19c00, 1af00) failed
[  248.261293] cma: dma_alloc_from_contiguous(): memory range at c0a14000 is busy, retrying
[  248.269718] alloc_contig_range test_pages_isolated(1a000, 1b000) failed
[  248.276319] cma: dma_alloc_from_contiguous(): memory range at c0a16000 is busy, retrying
[  248.284730] alloc_contig_range test_pages_isolated(1a000, 1b100) failed
[  248.291345] cma: dma_alloc_from_contiguous(): memory range at c0a18000 is busy, retrying
[  248.299763] alloc_contig_range test_pages_isolated(1a000, 1b200) failed
[  248.306364] cma: dma_alloc_from_contiguous(): memory range at c0a1a000 is busy, retrying
[  248.314777] alloc_contig_range test_pages_isolated(1a000, 1b300) failed
[  248.321391] cma: dma_alloc_from_contiguous(): memory range at c0a1c000 is busy, retrying
[  248.329797] alloc_contig_range test_pages_isolated(1a400, 1b400) failed
[  248.336397] cma: dma_alloc_from_contiguous(): memory range at c0a1e000 is busy, retrying
[  248.344805] alloc_contig_range test_pages_isolated(1a400, 1b500) failed
[  248.351420] cma: dma_alloc_from_contiguous(): memory range at c0a20000 is busy, retrying
[  248.359996] alloc_contig_range test_pages_isolated(1a400, 1b600) failed
[  248.366612] cma: dma_alloc_from_contiguous(): memory range at c0a22000 is busy, retrying
[  248.375011] alloc_contig_range test_pages_isolated(1a400, 1b700) failed
[  248.381629] cma: dma_alloc_from_contiguous(): memory range at c0a24000 is busy, retrying
[  248.390036] alloc_contig_range test_pages_isolated(1a800, 1b800) failed
[  248.396651] cma: dma_alloc_from_contiguous(): memory range at c0a26000 is busy, retrying
[  248.405043] alloc_contig_range test_pages_isolated(1a800, 1b900) failed
[  248.411659] cma: dma_alloc_from_contiguous(): memory range at c0a28000 is busy, retrying
[  248.420068] alloc_contig_range test_pages_isolated(1a800, 1ba00) failed
[  248.426686] cma: dma_alloc_from_contiguous(): memory range at c0a2a000 is busy, retrying
[  248.435082] alloc_contig_range test_pages_isolated(1a800, 1bb00) failed
[  248.441698] cma: dma_alloc_from_contiguous(): memory range at c0a2c000 is busy, retrying
[  248.450103] alloc_contig_range test_pages_isolated(1ac00, 1bc00) failed
[  248.456835] cma: dma_alloc_from_contiguous(): memory range at c0a2e000 is busy, retrying
[  248.465240] alloc_contig_range test_pages_isolated(1ac00, 1bd00) failed
[  248.471856] cma: dma_alloc_from_contiguous(): memory range at c0a30000 is busy, retrying
[  248.480265] alloc_contig_range test_pages_isolated(1ac00, 1be00) failed
[  248.486883] cma: dma_alloc_from_contiguous(): memory range at c0a32000 is busy, retrying
[  248.495282] alloc_contig_range test_pages_isolated(1ac00, 1bf00) failed
[  248.501907] cma: dma_alloc_from_contiguous(): memory range at c0a34000 is busy, retrying
[  248.510316] alloc_contig_range test_pages_isolated(1b000, 1c000) failed
[  248.516930] cma: dma_alloc_from_contiguous(): memory range at c0a36000 is busy, retrying
[  248.525329] alloc_contig_range test_pages_isolated(1b000, 1c100) failed
[  248.531945] cma: dma_alloc_from_contiguous(): memory range at c0a38000 is busy, retrying
[  248.540355] alloc_contig_range test_pages_isolated(1b000, 1c200) failed
[  248.546991] cma: dma_alloc_from_contiguous(): memory range at c0a3a000 is busy, retrying
[  248.555391] alloc_contig_range test_pages_isolated(1b000, 1c300) failed
[  248.562139] cma: dma_alloc_from_contiguous(): memory range at c0a3c000 is busy, retrying
[  248.570558] alloc_contig_range test_pages_isolated(1b400, 1c400) failed
[  248.577174] cma: dma_alloc_from_contiguous(): memory range at c0a3e000 is busy, retrying
[  248.585570] alloc_contig_range test_pages_isolated(1b400, 1c500) failed
[  248.592186] cma: dma_alloc_from_contiguous(): memory range at c0a40000 is busy, retrying
[  248.600591] alloc_contig_range test_pages_isolated(1b400, 1c600) failed
[  248.607208] cma: dma_alloc_from_contiguous(): memory range at c0a42000 is busy, retrying
[  248.615606] alloc_contig_range test_pages_isolated(1b400, 1c700) failed
[  248.622222] cma: dma_alloc_from_contiguous(): memory range at c0a44000 is busy, retrying
[  248.630628] alloc_contig_range test_pages_isolated(1b800, 1c800) failed
[  248.637245] cma: dma_alloc_from_contiguous(): memory range at c0a46000 is busy, retrying
[  248.645643] alloc_contig_range test_pages_isolated(1b800, 1c900) failed
[  248.652260] cma: dma_alloc_from_contiguous(): memory range at c0a48000 is busy, retrying
[  248.660752] alloc_contig_range test_pages_isolated(1b800, 1ca00) failed
[  248.667375] cma: dma_alloc_from_contiguous(): memory range at c0a4a000 is busy, retrying
[  248.675777] alloc_contig_range test_pages_isolated(1b800, 1cb00) failed
[  248.682396] cma: dma_alloc_from_contiguous(): memory range at c0a4c000 is busy, retrying
[  248.690804] alloc_contig_range test_pages_isolated(1bc00, 1cc00) failed
[  248.697442] cma: dma_alloc_from_contiguous(): memory range at c0a4e000 is busy, retrying
[  248.705905] alloc_contig_range test_pages_isolated(1bc00, 1cd00) failed
[  248.712523] cma: dma_alloc_from_contiguous(): memory range at c0a50000 is busy, retrying
[  248.720938] alloc_contig_range test_pages_isolated(1bc00, 1ce00) failed
[  248.727559] cma: dma_alloc_from_contiguous(): memory range at c0a52000 is busy, retrying
[  248.735960] alloc_contig_range test_pages_isolated(1bc00, 1cf00) failed
[  248.742580] cma: dma_alloc_from_contiguous(): memory range at c0a54000 is busy, retrying
[  248.750995] alloc_contig_range test_pages_isolated(1c000, 1d000) failed
[  248.757776] cma: dma_alloc_from_contiguous(): memory range at c0a56000 is busy, retrying
[  248.766183] alloc_contig_range test_pages_isolated(1c000, 1d100) failed
[  248.772800] cma: dma_alloc_from_contiguous(): memory range at c0a58000 is busy, retrying
[  248.781211] alloc_contig_range test_pages_isolated(1c000, 1d200) failed
[  248.787827] cma: dma_alloc_from_contiguous(): memory range at c0a5a000 is busy, retrying
[  248.796226] alloc_contig_range test_pages_isolated(1c000, 1d300) failed
[  248.802843] cma: dma_alloc_from_contiguous(): memory range at c0a5c000 is busy, retrying
[  248.811248] alloc_contig_range test_pages_isolated(1c400, 1d400) failed
[  248.817865] cma: dma_alloc_from_contiguous(): memory range at c0a5e000 is busy, retrying
[  248.826263] alloc_contig_range test_pages_isolated(1c400, 1d500) failed
[  248.832881] cma: dma_alloc_from_contiguous(): memory range at c0a60000 is busy, retrying
[  248.841291] alloc_contig_range test_pages_isolated(1c400, 1d600) failed
[  248.847928] cma: dma_alloc_from_contiguous(): memory range at c0a62000 is busy, retrying
[  248.856325] alloc_contig_range test_pages_isolated(1c400, 1d700) failed
[  248.863054] cma: dma_alloc_from_contiguous(): memory range at c0a64000 is busy, retrying
[  248.871485] alloc_contig_range test_pages_isolated(1c800, 1d800) failed
[  248.878104] cma: dma_alloc_from_contiguous(): memory range at c0a66000 is busy, retrying
[  248.886512] alloc_contig_range test_pages_isolated(1c800, 1d900) failed
[  248.893113] cma: dma_alloc_from_contiguous(): memory range at c0a68000 is busy, retrying
[  248.901538] alloc_contig_range test_pages_isolated(1c800, 1da00) failed
[  248.908154] cma: dma_alloc_from_contiguous(): memory range at c0a6a000 is busy, retrying
[  248.916568] alloc_contig_range test_pages_isolated(1c800, 1db00) failed
[  248.923169] cma: dma_alloc_from_contiguous(): memory range at c0a6c000 is busy, retrying
[  248.931583] alloc_contig_range test_pages_isolated(1cc00, 1dc00) failed
[  248.938197] cma: dma_alloc_from_contiguous(): memory range at c0a6e000 is busy, retrying
[  248.946603] alloc_contig_range test_pages_isolated(1cc00, 1dd00) failed
[  248.953206] cma: dma_alloc_from_contiguous(): memory range at c0a70000 is busy, retrying
[  248.961807] alloc_contig_range test_pages_isolated(1cc00, 1de00) failed
[  248.968424] cma: dma_alloc_from_contiguous(): memory range at c0a72000 is busy, retrying
[  248.976837] alloc_contig_range test_pages_isolated(1cc00, 1df00) failed
[  248.983439] cma: dma_alloc_from_contiguous(): memory range at c0a74000 is busy, retrying
[  248.991851] alloc_contig_range test_pages_isolated(1d000, 1e000) failed
[  248.998464] cma: dma_alloc_from_contiguous(): memory range at c0a76000 is busy, retrying
[  249.006872] alloc_contig_range test_pages_isolated(1d000, 1e100) failed
[  249.013473] cma: dma_alloc_from_contiguous(): memory range at c0a78000 is busy, retrying
[  249.021902] alloc_contig_range test_pages_isolated(1d000, 1e200) failed
[  249.028517] cma: dma_alloc_from_contiguous(): memory range at c0a7a000 is busy, retrying
[  249.036927] alloc_contig_range test_pages_isolated(1d000, 1e300) failed
[  249.043529] cma: dma_alloc_from_contiguous(): memory range at c0a7c000 is busy, retrying
[  249.051939] alloc_contig_range test_pages_isolated(1d400, 1e400) failed
[  249.058755] cma: dma_alloc_from_contiguous(): memory range at c0a7e000 is busy, retrying
[  249.067180] alloc_contig_range test_pages_isolated(1d400, 1e500) failed
[  249.073781] cma: dma_alloc_from_contiguous(): memory range at c0a80000 is busy, retrying
[  249.082197] alloc_contig_range test_pages_isolated(1d400, 1e600) failed
[  249.088811] cma: dma_alloc_from_contiguous(): memory range at c0a82000 is busy, retrying
[  249.097230] alloc_contig_range test_pages_isolated(1d400, 1e700) failed
[  249.103832] cma: dma_alloc_from_contiguous(): memory range at c0a84000 is busy, retrying
[  249.112240] alloc_contig_range test_pages_isolated(1d800, 1e800) failed
[  249.118855] cma: dma_alloc_from_contiguous(): memory range at c0a86000 is busy, retrying
[  249.127266] alloc_contig_range test_pages_isolated(1d800, 1e900) failed
[  249.133868] cma: dma_alloc_from_contiguous(): memory range at c0a88000 is busy, retrying
[  249.142278] alloc_contig_range test_pages_isolated(1d800, 1ea00) failed
[  249.148911] cma: dma_alloc_from_contiguous(): memory range at c0a8a000 is busy, retrying
[  249.157398] alloc_contig_range test_pages_isolated(1d800, 1eb00) failed
[  249.164000] cma: dma_alloc_from_contiguous(): memory range at c0a8c000 is busy, retrying
[  249.172412] alloc_contig_range test_pages_isolated(1dc00, 1ec00) failed
[  249.179025] cma: dma_alloc_from_contiguous(): memory range at c0a8e000 is busy, retrying
[  249.187429] alloc_contig_range test_pages_isolated(1dc00, 1ed00) failed
[  249.194030] cma: dma_alloc_from_contiguous(): memory range at c0a90000 is busy, retrying
[  249.202444] alloc_contig_range test_pages_isolated(1dc00, 1ee00) failed
[  249.209059] cma: dma_alloc_from_contiguous(): memory range at c0a92000 is busy, retrying
[  249.217469] alloc_contig_range test_pages_isolated(1dc00, 1ef00) failed
[  249.224072] cma: dma_alloc_from_contiguous(): memory range at c0a94000 is busy, retrying
[  249.232481] alloc_contig_range test_pages_isolated(1e000, 1f000) failed
[  249.239092] cma: dma_alloc_from_contiguous(): memory range at c0a96000 is busy, retrying
[  249.247503] alloc_contig_range test_pages_isolated(1e000, 1f100) failed
[  249.254105] cma: dma_alloc_from_contiguous(): memory range at c0a98000 is busy, retrying
[  249.262657] alloc_contig_range test_pages_isolated(1e000, 1f200) failed
[  249.269272] cma: dma_alloc_from_contiguous(): memory range at c0a9a000 is busy, retrying
[  249.277683] alloc_contig_range test_pages_isolated(1e000, 1f300) failed
[  249.284285] cma: dma_alloc_from_contiguous(): memory range at c0a9c000 is busy, retrying
[  249.292695] alloc_contig_range test_pages_isolated(1e400, 1f400) failed
[  249.299317] cma: dma_alloc_from_contiguous(): memory range at c0a9e000 is busy, retrying
[  249.307722] alloc_contig_range test_pages_isolated(1e400, 1f500) failed
[  249.314323] cma: dma_alloc_from_contiguous(): memory range at c0aa0000 is busy, retrying
[  249.322737] alloc_contig_range test_pages_isolated(1e400, 1f600) failed
[  249.329352] cma: dma_alloc_from_contiguous(): memory range at c0aa2000 is busy, retrying
[  249.337761] alloc_contig_range test_pages_isolated(1e400, 1f700) failed
[  249.344362] cma: dma_alloc_from_contiguous(): memory range at c0aa4000 is busy, retrying
[  249.352773] alloc_contig_range test_pages_isolated(1e800, 1f800) failed
[  249.359455] cma: dma_alloc_from_contiguous(): memory range at c0aa6000 is busy, retrying
[  249.367539] cma: dma_alloc_from_contiguous(): returned   (null)
[  249.373444] failed to allocate 16777216 bytes
[  249.377799] cma: dma_alloc_from_contiguous(cma cf473fc0, count 8192, align 8)
[  249.386092] alloc_contig_range test_pages_isolated(fc00, 11c00) failed
[  249.392630] cma: dma_alloc_from_contiguous(): memory range at c08ce000 is busy, retrying
[  249.401361] alloc_contig_range test_pages_isolated(fc00, 11d00) failed
[  249.407895] cma: dma_alloc_from_contiguous(): memory range at c08d0000 is busy, retrying
[  249.416576] alloc_contig_range test_pages_isolated(fc00, 11e00) failed
[  249.423095] cma: dma_alloc_from_contiguous(): memory range at c08d2000 is busy, retrying
[  249.431773] alloc_contig_range test_pages_isolated(fc00, 11f00) failed
[  249.438304] cma: dma_alloc_from_contiguous(): memory range at c08d4000 is busy, retrying
[  249.446999] alloc_contig_range test_pages_isolated(10000, 12000) failed
[  249.453604] cma: dma_alloc_from_contiguous(): memory range at c08d6000 is busy, retrying
[  249.462563] alloc_contig_range test_pages_isolated(10000, 12100) failed
[  249.469183] cma: dma_alloc_from_contiguous(): memory range at c08d8000 is busy, retrying
[  249.477869] alloc_contig_range test_pages_isolated(10000, 12200) failed
[  249.484474] cma: dma_alloc_from_contiguous(): memory range at c08da000 is busy, retrying
[  249.493152] alloc_contig_range test_pages_isolated(10000, 12300) failed
[  249.499778] cma: dma_alloc_from_contiguous(): memory range at c08dc000 is busy, retrying
[  249.508447] alloc_contig_range test_pages_isolated(10400, 12400) failed
[  249.515051] cma: dma_alloc_from_contiguous(): memory range at c08de000 is busy, retrying
[  249.523725] alloc_contig_range test_pages_isolated(10400, 12500) failed
[  249.530342] cma: dma_alloc_from_contiguous(): memory range at c08e0000 is busy, retrying
[  249.539020] alloc_contig_range test_pages_isolated(10400, 12600) failed
[  249.545624] cma: dma_alloc_from_contiguous(): memory range at c08e2000 is busy, retrying
[  249.554302] alloc_contig_range test_pages_isolated(10400, 12700) failed
[  249.561032] cma: dma_alloc_from_contiguous(): memory range at c08e4000 is busy, retrying
[  249.569731] alloc_contig_range test_pages_isolated(10800, 12800) failed
[  249.576335] cma: dma_alloc_from_contiguous(): memory range at c08e6000 is busy, retrying
[  249.585012] alloc_contig_range test_pages_isolated(10800, 12900) failed
[  249.591632] cma: dma_alloc_from_contiguous(): memory range at c08e8000 is busy, retrying
[  249.600316] alloc_contig_range test_pages_isolated(10800, 12a00) failed
[  249.606935] cma: dma_alloc_from_contiguous(): memory range at c08ea000 is busy, retrying
[  249.615595] alloc_contig_range test_pages_isolated(10800, 12b00) failed
[  249.622216] cma: dma_alloc_from_contiguous(): memory range at c08ec000 is busy, retrying
[  249.630893] alloc_contig_range test_pages_isolated(10c00, 12c00) failed
[  249.637512] cma: dma_alloc_from_contiguous(): memory range at c08ee000 is busy, retrying
[  249.646176] alloc_contig_range test_pages_isolated(10c00, 12d00) failed
[  249.652797] cma: dma_alloc_from_contiguous(): memory range at c08f0000 is busy, retrying
[  249.661668] alloc_contig_range test_pages_isolated(10c00, 12e00) failed
[  249.668289] cma: dma_alloc_from_contiguous(): memory range at c08f2000 is busy, retrying
[  249.676964] alloc_contig_range test_pages_isolated(10c00, 12f00) failed
[  249.683568] cma: dma_alloc_from_contiguous(): memory range at c08f4000 is busy, retrying
[  249.692240] alloc_contig_range test_pages_isolated(11000, 13000) failed
[  249.698864] cma: dma_alloc_from_contiguous(): memory range at c08f6000 is busy, retrying
[  249.707536] alloc_contig_range test_pages_isolated(11000, 13100) failed
[  249.714142] cma: dma_alloc_from_contiguous(): memory range at c08f8000 is busy, retrying
[  249.722815] alloc_contig_range test_pages_isolated(11000, 13200) failed
[  249.729432] cma: dma_alloc_from_contiguous(): memory range at c08fa000 is busy, retrying
[  249.738106] alloc_contig_range test_pages_isolated(11000, 13300) failed
[  249.744711] cma: dma_alloc_from_contiguous(): memory range at c08fc000 is busy, retrying
[  249.753403] alloc_contig_range test_pages_isolated(11400, 13400) failed
[  249.760190] cma: dma_alloc_from_contiguous(): memory range at c08fe000 is busy, retrying
[  249.768882] alloc_contig_range test_pages_isolated(11400, 13500) failed
[  249.775487] cma: dma_alloc_from_contiguous(): memory range at c0900000 is busy, retrying
[  249.784164] alloc_contig_range test_pages_isolated(11400, 13600) failed
[  249.790781] cma: dma_alloc_from_contiguous(): memory range at c0902000 is busy, retrying
[  249.799459] alloc_contig_range test_pages_isolated(11400, 13700) failed
[  249.806064] cma: dma_alloc_from_contiguous(): memory range at c0904000 is busy, retrying
[  249.814739] alloc_contig_range test_pages_isolated(11800, 13800) failed
[  249.821356] cma: dma_alloc_from_contiguous(): memory range at c0906000 is busy, retrying
[  249.830028] alloc_contig_range test_pages_isolated(11800, 13900) failed
[  249.836646] cma: dma_alloc_from_contiguous(): memory range at c0908000 is busy, retrying
[  249.845313] alloc_contig_range test_pages_isolated(11800, 13a00) failed
[  249.851932] cma: dma_alloc_from_contiguous(): memory range at c090a000 is busy, retrying
[  249.860793] alloc_contig_range test_pages_isolated(11800, 13b00) failed
[  249.867415] cma: dma_alloc_from_contiguous(): memory range at c090c000 is busy, retrying
[  249.876080] alloc_contig_range test_pages_isolated(11c00, 13c00) failed
[  249.882698] cma: dma_alloc_from_contiguous(): memory range at c090e000 is busy, retrying
[  249.891380] alloc_contig_range test_pages_isolated(11c00, 13d00) failed
[  249.898007] cma: dma_alloc_from_contiguous(): memory range at c0910000 is busy, retrying
[  249.906682] alloc_contig_range test_pages_isolated(11c00, 13e00) failed
[  249.913287] cma: dma_alloc_from_contiguous(): memory range at c0912000 is busy, retrying
[  249.921963] alloc_contig_range test_pages_isolated(11c00, 13f00) failed
[  249.928580] cma: dma_alloc_from_contiguous(): memory range at c0914000 is busy, retrying
[  249.937257] alloc_contig_range test_pages_isolated(12000, 14000) failed
[  249.943862] cma: dma_alloc_from_contiguous(): memory range at c0916000 is busy, retrying
[  249.952538] alloc_contig_range test_pages_isolated(12000, 14100) failed
[  249.959363] cma: dma_alloc_from_contiguous(): memory range at c0918000 is busy, retrying
[  249.968057] alloc_contig_range test_pages_isolated(12000, 14200) failed
[  249.974662] cma: dma_alloc_from_contiguous(): memory range at c091a000 is busy, retrying
[  249.983347] alloc_contig_range test_pages_isolated(12000, 14300) failed
[  249.989964] cma: dma_alloc_from_contiguous(): memory range at c091c000 is busy, retrying
[  249.998636] alloc_contig_range test_pages_isolated(12400, 14400) failed
[  250.005240] cma: dma_alloc_from_contiguous(): memory range at c091e000 is busy, retrying
[  250.013913] alloc_contig_range test_pages_isolated(12400, 14500) failed
[  250.020691] cma: dma_alloc_from_contiguous(): memory range at c0920000 is busy, retrying
[  250.029394] alloc_contig_range test_pages_isolated(12400, 14600) failed
[  250.035999] cma: dma_alloc_from_contiguous(): memory range at c0922000 is busy, retrying
[  250.044678] alloc_contig_range test_pages_isolated(12400, 14700) failed
[  250.051314] cma: dma_alloc_from_contiguous(): memory range at c0924000 is busy, retrying
[  250.060198] alloc_contig_range test_pages_isolated(12800, 14800) failed
[  250.066822] cma: dma_alloc_from_contiguous(): memory range at c0926000 is busy, retrying
[  250.075485] alloc_contig_range test_pages_isolated(12800, 14900) failed
[  250.082106] cma: dma_alloc_from_contiguous(): memory range at c0928000 is busy, retrying
[  250.090782] alloc_contig_range test_pages_isolated(12800, 14a00) failed
[  250.097413] cma: dma_alloc_from_contiguous(): memory range at c092a000 is busy, retrying
[  250.106074] alloc_contig_range test_pages_isolated(12800, 14b00) failed
[  250.112695] cma: dma_alloc_from_contiguous(): memory range at c092c000 is busy, retrying
[  250.121364] alloc_contig_range test_pages_isolated(12c00, 14c00) failed
[  250.127985] cma: dma_alloc_from_contiguous(): memory range at c092e000 is busy, retrying
[  250.136656] alloc_contig_range test_pages_isolated(12c00, 14d00) failed
[  250.143261] cma: dma_alloc_from_contiguous(): memory range at c0930000 is busy, retrying
[  250.151939] alloc_contig_range test_pages_isolated(12c00, 14e00) failed
[  250.158644] cma: dma_alloc_from_contiguous(): memory range at c0932000 is busy, retrying
[  250.167335] alloc_contig_range test_pages_isolated(12c00, 14f00) failed
[  250.173939] cma: dma_alloc_from_contiguous(): memory range at c0934000 is busy, retrying
[  250.182615] alloc_contig_range test_pages_isolated(13000, 15000) failed
[  250.189233] cma: dma_alloc_from_contiguous(): memory range at c0936000 is busy, retrying
[  250.197909] alloc_contig_range test_pages_isolated(13000, 15100) failed
[  250.204513] cma: dma_alloc_from_contiguous(): memory range at c0938000 is busy, retrying
[  250.213188] alloc_contig_range test_pages_isolated(13000, 15200) failed
[  250.219805] cma: dma_alloc_from_contiguous(): memory range at c093a000 is busy, retrying
[  250.228476] alloc_contig_range test_pages_isolated(13000, 15300) failed
[  250.235082] cma: dma_alloc_from_contiguous(): memory range at c093c000 is busy, retrying
[  250.243752] alloc_contig_range test_pages_isolated(13400, 15400) failed
[  250.250367] cma: dma_alloc_from_contiguous(): memory range at c093e000 is busy, retrying
[  250.259254] alloc_contig_range test_pages_isolated(13400, 15500) failed
[  250.265859] cma: dma_alloc_from_contiguous(): memory range at c0940000 is busy, retrying
[  250.274539] alloc_contig_range test_pages_isolated(13400, 15600) failed
[  250.281157] cma: dma_alloc_from_contiguous(): memory range at c0942000 is busy, retrying
[  250.289830] alloc_contig_range test_pages_isolated(13400, 15700) failed
[  250.296455] cma: dma_alloc_from_contiguous(): memory range at c0944000 is busy, retrying
[  250.305116] alloc_contig_range test_pages_isolated(13800, 15800) failed
[  250.311735] cma: dma_alloc_from_contiguous(): memory range at c0946000 is busy, retrying
[  250.320404] alloc_contig_range test_pages_isolated(13800, 15900) failed
[  250.327023] cma: dma_alloc_from_contiguous(): memory range at c0948000 is busy, retrying
[  250.335683] alloc_contig_range test_pages_isolated(13800, 15a00) failed
[  250.342302] cma: dma_alloc_from_contiguous(): memory range at c094a000 is busy, retrying
[  250.350994] alloc_contig_range test_pages_isolated(13800, 15b00) failed
[  250.357849] cma: dma_alloc_from_contiguous(): memory range at c094c000 is busy, retrying
[  250.366541] alloc_contig_range test_pages_isolated(13c00, 15c00) failed
[  250.373146] cma: dma_alloc_from_contiguous(): memory range at c094e000 is busy, retrying
[  250.381862] alloc_contig_range test_pages_isolated(13c00, 15d00) failed
[  250.388480] cma: dma_alloc_from_contiguous(): memory range at c0950000 is busy, retrying
[  250.397168] alloc_contig_range test_pages_isolated(13c00, 15e00) failed
[  250.403773] cma: dma_alloc_from_contiguous(): memory range at c0952000 is busy, retrying
[  250.412451] alloc_contig_range test_pages_isolated(13c00, 15f00) failed
[  250.419069] cma: dma_alloc_from_contiguous(): memory range at c0954000 is busy, retrying
[  250.427736] alloc_contig_range test_pages_isolated(14000, 16000) failed
[  250.434341] cma: dma_alloc_from_contiguous(): memory range at c0956000 is busy, retrying
[  250.443024] alloc_contig_range test_pages_isolated(14000, 16100) failed
[  250.449642] cma: dma_alloc_from_contiguous(): memory range at c0958000 is busy, retrying
[  250.458427] alloc_contig_range test_pages_isolated(14000, 16200) failed
[  250.465032] cma: dma_alloc_from_contiguous(): memory range at c095a000 is busy, retrying
[  250.473717] alloc_contig_range test_pages_isolated(14000, 16300) failed
[  250.480334] cma: dma_alloc_from_contiguous(): memory range at c095c000 is busy, retrying
[  250.489009] alloc_contig_range test_pages_isolated(14400, 16400) failed
[  250.495612] cma: dma_alloc_from_contiguous(): memory range at c095e000 is busy, retrying
[  250.504295] alloc_contig_range test_pages_isolated(14400, 16500) failed
[  250.510913] cma: dma_alloc_from_contiguous(): memory range at c0960000 is busy, retrying
[  250.519584] alloc_contig_range test_pages_isolated(14400, 16600) failed
[  250.526188] cma: dma_alloc_from_contiguous(): memory range at c0962000 is busy, retrying
[  250.534863] alloc_contig_range test_pages_isolated(14400, 16700) failed
[  250.541481] cma: dma_alloc_from_contiguous(): memory range at c0964000 is busy, retrying
[  250.550147] alloc_contig_range test_pages_isolated(14800, 16800) failed
[  250.556936] cma: dma_alloc_from_contiguous(): memory range at c0966000 is busy, retrying
[  250.565619] alloc_contig_range test_pages_isolated(14800, 16900) failed
[  250.572240] cma: dma_alloc_from_contiguous(): memory range at c0968000 is busy, retrying
[  250.580911] alloc_contig_range test_pages_isolated(14800, 16a00) failed
[  250.587532] cma: dma_alloc_from_contiguous(): memory range at c096a000 is busy, retrying
[  250.596193] alloc_contig_range test_pages_isolated(14800, 16b00) failed
[  250.602813] cma: dma_alloc_from_contiguous(): memory range at c096c000 is busy, retrying
[  250.611486] alloc_contig_range test_pages_isolated(14c00, 16c00) failed
[  250.618106] cma: dma_alloc_from_contiguous(): memory range at c096e000 is busy, retrying
[  250.626775] alloc_contig_range test_pages_isolated(14c00, 16d00) failed
[  250.633381] cma: dma_alloc_from_contiguous(): memory range at c0970000 is busy, retrying
[  250.642055] alloc_contig_range test_pages_isolated(14c00, 16e00) failed
[  250.648693] cma: dma_alloc_from_contiguous(): memory range at c0972000 is busy, retrying
[  250.657533] alloc_contig_range test_pages_isolated(14c00, 16f00) failed
[  250.664138] cma: dma_alloc_from_contiguous(): memory range at c0974000 is busy, retrying
[  250.672816] alloc_contig_range test_pages_isolated(15000, 17000) failed
[  250.679433] cma: dma_alloc_from_contiguous(): memory range at c0976000 is busy, retrying
[  250.688104] alloc_contig_range test_pages_isolated(15000, 17100) failed
[  250.694709] cma: dma_alloc_from_contiguous(): memory range at c0978000 is busy, retrying
[  250.703392] alloc_contig_range test_pages_isolated(15000, 17200) failed
[  250.710010] cma: dma_alloc_from_contiguous(): memory range at c097a000 is busy, retrying
[  250.718680] alloc_contig_range test_pages_isolated(15000, 17300) failed
[  250.725284] cma: dma_alloc_from_contiguous(): memory range at c097c000 is busy, retrying
[  250.733959] alloc_contig_range test_pages_isolated(15400, 17400) failed
[  250.740576] cma: dma_alloc_from_contiguous(): memory range at c097e000 is busy, retrying
[  250.749246] alloc_contig_range test_pages_isolated(15400, 17500) failed
[  250.755850] cma: dma_alloc_from_contiguous(): memory range at c0980000 is busy, retrying
[  250.764695] alloc_contig_range test_pages_isolated(15400, 17600) failed
[  250.771314] cma: dma_alloc_from_contiguous(): memory range at c0982000 is busy, retrying
[  250.779989] alloc_contig_range test_pages_isolated(15400, 17700) failed
[  250.786606] cma: dma_alloc_from_contiguous(): memory range at c0984000 is busy, retrying
[  250.795272] alloc_contig_range test_pages_isolated(15800, 17800) failed
[  250.801890] cma: dma_alloc_from_contiguous(): memory range at c0986000 is busy, retrying
[  250.810561] alloc_contig_range test_pages_isolated(15800, 17900) failed
[  250.817180] cma: dma_alloc_from_contiguous(): memory range at c0988000 is busy, retrying
[  250.825844] alloc_contig_range test_pages_isolated(15800, 17a00) failed
[  250.832464] cma: dma_alloc_from_contiguous(): memory range at c098a000 is busy, retrying
[  250.841134] alloc_contig_range test_pages_isolated(15800, 17b00) failed
[  250.847754] cma: dma_alloc_from_contiguous(): memory range at c098c000 is busy, retrying
[  250.856415] alloc_contig_range test_pages_isolated(15c00, 17c00) failed
[  250.863138] cma: dma_alloc_from_contiguous(): memory range at c098e000 is busy, retrying
[  250.871837] alloc_contig_range test_pages_isolated(15c00, 17d00) failed
[  250.878460] cma: dma_alloc_from_contiguous(): memory range at c0990000 is busy, retrying
[  250.887135] alloc_contig_range test_pages_isolated(15c00, 17e00) failed
[  250.893739] cma: dma_alloc_from_contiguous(): memory range at c0992000 is busy, retrying
[  250.902431] alloc_contig_range test_pages_isolated(15c00, 17f00) failed
[  250.909050] cma: dma_alloc_from_contiguous(): memory range at c0994000 is busy, retrying
[  250.917736] alloc_contig_range test_pages_isolated(16000, 18000) failed
[  250.924341] cma: dma_alloc_from_contiguous(): memory range at c0996000 is busy, retrying
[  250.933022] alloc_contig_range test_pages_isolated(16000, 18100) failed
[  250.939639] cma: dma_alloc_from_contiguous(): memory range at c0998000 is busy, retrying
[  250.948331] alloc_contig_range test_pages_isolated(16000, 18200) failed
[  250.954938] cma: dma_alloc_from_contiguous(): memory range at c099a000 is busy, retrying
[  250.963829] alloc_contig_range test_pages_isolated(16000, 18300) failed
[  250.970453] cma: dma_alloc_from_contiguous(): memory range at c099c000 is busy, retrying
[  250.979131] alloc_contig_range test_pages_isolated(16400, 18400) failed
[  250.985735] cma: dma_alloc_from_contiguous(): memory range at c099e000 is busy, retrying
[  250.994411] alloc_contig_range test_pages_isolated(16400, 18500) failed
[  251.001034] cma: dma_alloc_from_contiguous(): memory range at c09a0000 is busy, retrying
[  251.009710] alloc_contig_range test_pages_isolated(16400, 18600) failed
[  251.016316] cma: dma_alloc_from_contiguous(): memory range at c09a2000 is busy, retrying
[  251.025014] alloc_contig_range test_pages_isolated(16400, 18700) failed
[  251.031635] cma: dma_alloc_from_contiguous(): memory range at c09a4000 is busy, retrying
[  251.040310] alloc_contig_range test_pages_isolated(16800, 18800) failed
[  251.046927] cma: dma_alloc_from_contiguous(): memory range at c09a6000 is busy, retrying
[  251.055589] alloc_contig_range test_pages_isolated(16800, 18900) failed
[  251.062341] cma: dma_alloc_from_contiguous(): memory range at c09a8000 is busy, retrying
[  251.071029] alloc_contig_range test_pages_isolated(16800, 18a00) failed
[  251.077649] cma: dma_alloc_from_contiguous(): memory range at c09aa000 is busy, retrying
[  251.086311] alloc_contig_range test_pages_isolated(16800, 18b00) failed
[  251.092932] cma: dma_alloc_from_contiguous(): memory range at c09ac000 is busy, retrying
[  251.101608] alloc_contig_range test_pages_isolated(16c00, 18c00) failed
[  251.108227] cma: dma_alloc_from_contiguous(): memory range at c09ae000 is busy, retrying
[  251.116905] alloc_contig_range test_pages_isolated(16c00, 18d00) failed
[  251.123509] cma: dma_alloc_from_contiguous(): memory range at c09b0000 is busy, retrying
[  251.132186] alloc_contig_range test_pages_isolated(16c00, 18e00) failed
[  251.138803] cma: dma_alloc_from_contiguous(): memory range at c09b2000 is busy, retrying
[  251.147474] alloc_contig_range test_pages_isolated(16c00, 18f00) failed
[  251.154078] cma: dma_alloc_from_contiguous(): memory range at c09b4000 is busy, retrying
[  251.162897] alloc_contig_range test_pages_isolated(17000, 19000) failed
[  251.169515] cma: dma_alloc_from_contiguous(): memory range at c09b6000 is busy, retrying
[  251.178190] alloc_contig_range test_pages_isolated(17000, 19100) failed
[  251.184796] cma: dma_alloc_from_contiguous(): memory range at c09b8000 is busy, retrying
[  251.193472] alloc_contig_range test_pages_isolated(17000, 19200) failed
[  251.200091] cma: dma_alloc_from_contiguous(): memory range at c09ba000 is busy, retrying
[  251.208764] alloc_contig_range test_pages_isolated(17000, 19300) failed
[  251.215370] cma: dma_alloc_from_contiguous(): memory range at c09bc000 is busy, retrying
[  251.224042] alloc_contig_range test_pages_isolated(17400, 19400) failed
[  251.230658] cma: dma_alloc_from_contiguous(): memory range at c09be000 is busy, retrying
[  251.239337] alloc_contig_range test_pages_isolated(17400, 19500) failed
[  251.245941] cma: dma_alloc_from_contiguous(): memory range at c09c0000 is busy, retrying
[  251.254641] alloc_contig_range test_pages_isolated(17400, 19600) failed
[  251.261393] cma: dma_alloc_from_contiguous(): memory range at c09c2000 is busy, retrying
[  251.270078] alloc_contig_range test_pages_isolated(17400, 19700) failed
[  251.276695] cma: dma_alloc_from_contiguous(): memory range at c09c4000 is busy, retrying
[  251.285354] alloc_contig_range test_pages_isolated(17800, 19800) failed
[  251.291974] cma: dma_alloc_from_contiguous(): memory range at c09c6000 is busy, retrying
[  251.300654] alloc_contig_range test_pages_isolated(17800, 19900) failed
[  251.307272] cma: dma_alloc_from_contiguous(): memory range at c09c8000 is busy, retrying
[  251.315931] alloc_contig_range test_pages_isolated(17800, 19a00) failed
[  251.322551] cma: dma_alloc_from_contiguous(): memory range at c09ca000 is busy, retrying
[  251.331229] alloc_contig_range test_pages_isolated(17800, 19b00) failed
[  251.337848] cma: dma_alloc_from_contiguous(): memory range at c09cc000 is busy, retrying
[  251.346516] alloc_contig_range test_pages_isolated(17c00, 19c00) failed
[  251.353121] cma: dma_alloc_from_contiguous(): memory range at c09ce000 is busy, retrying
[  251.361872] alloc_contig_range test_pages_isolated(17c00, 19d00) failed
[  251.368496] cma: dma_alloc_from_contiguous(): memory range at c09d0000 is busy, retrying
[  251.377173] alloc_contig_range test_pages_isolated(17c00, 19e00) failed
[  251.383777] cma: dma_alloc_from_contiguous(): memory range at c09d2000 is busy, retrying
[  251.392450] alloc_contig_range test_pages_isolated(17c00, 19f00) failed
[  251.399076] cma: dma_alloc_from_contiguous(): memory range at c09d4000 is busy, retrying
[  251.407803] alloc_contig_range test_pages_isolated(18000, 1a000) failed
[  251.414407] cma: dma_alloc_from_contiguous(): memory range at c09d6000 is busy, retrying
[  251.423090] alloc_contig_range test_pages_isolated(18000, 1a100) failed
[  251.429711] cma: dma_alloc_from_contiguous(): memory range at c09d8000 is busy, retrying
[  251.438384] alloc_contig_range test_pages_isolated(18000, 1a200) failed
[  251.444988] cma: dma_alloc_from_contiguous(): memory range at c09da000 is busy, retrying
[  251.453664] alloc_contig_range test_pages_isolated(18000, 1a300) failed
[  251.460414] cma: dma_alloc_from_contiguous(): memory range at c09dc000 is busy, retrying
[  251.469101] alloc_contig_range test_pages_isolated(18400, 1a400) failed
[  251.475705] cma: dma_alloc_from_contiguous(): memory range at c09de000 is busy, retrying
[  251.484381] alloc_contig_range test_pages_isolated(18400, 1a500) failed
[  251.490999] cma: dma_alloc_from_contiguous(): memory range at c09e0000 is busy, retrying
[  251.499681] alloc_contig_range test_pages_isolated(18400, 1a600) failed
[  251.506287] cma: dma_alloc_from_contiguous(): memory range at c09e2000 is busy, retrying
[  251.514963] alloc_contig_range test_pages_isolated(18400, 1a700) failed
[  251.521580] cma: dma_alloc_from_contiguous(): memory range at c09e4000 is busy, retrying
[  251.530252] alloc_contig_range test_pages_isolated(18800, 1a800) failed
[  251.536869] cma: dma_alloc_from_contiguous(): memory range at c09e6000 is busy, retrying
[  251.545530] alloc_contig_range test_pages_isolated(18800, 1a900) failed
[  251.552170] cma: dma_alloc_from_contiguous(): memory range at c09e8000 is busy, retrying
[  251.560924] alloc_contig_range test_pages_isolated(18800, 1aa00) failed
[  251.567551] cma: dma_alloc_from_contiguous(): memory range at c09ea000 is busy, retrying
[  251.576218] alloc_contig_range test_pages_isolated(18800, 1ab00) failed
[  251.582839] cma: dma_alloc_from_contiguous(): memory range at c09ec000 is busy, retrying
[  251.591508] alloc_contig_range test_pages_isolated(18c00, 1ac00) failed
[  251.598131] cma: dma_alloc_from_contiguous(): memory range at c09ee000 is busy, retrying
[  251.606806] alloc_contig_range test_pages_isolated(18c00, 1ad00) failed
[  251.613411] cma: dma_alloc_from_contiguous(): memory range at c09f0000 is busy, retrying
[  251.622094] alloc_contig_range test_pages_isolated(18c00, 1ae00) failed
[  251.628715] cma: dma_alloc_from_contiguous(): memory range at c09f2000 is busy, retrying
[  251.637391] alloc_contig_range test_pages_isolated(18c00, 1af00) failed
[  251.643996] cma: dma_alloc_from_contiguous(): memory range at c09f4000 is busy, retrying
[  251.652672] alloc_contig_range test_pages_isolated(19000, 1b000) failed
[  251.659421] cma: dma_alloc_from_contiguous(): memory range at c09f6000 is busy, retrying
[  251.668115] alloc_contig_range test_pages_isolated(19000, 1b100) failed
[  251.674720] cma: dma_alloc_from_contiguous(): memory range at c09f8000 is busy, retrying
[  251.683405] alloc_contig_range test_pages_isolated(19000, 1b200) failed
[  251.690022] cma: dma_alloc_from_contiguous(): memory range at c09fa000 is busy, retrying
[  251.698700] alloc_contig_range test_pages_isolated(19000, 1b300) failed
[  251.705305] cma: dma_alloc_from_contiguous(): memory range at c09fc000 is busy, retrying
[  251.713988] alloc_contig_range test_pages_isolated(19400, 1b400) failed
[  251.720605] cma: dma_alloc_from_contiguous(): memory range at c09fe000 is busy, retrying
[  251.729276] alloc_contig_range test_pages_isolated(19400, 1b500) failed
[  251.735881] cma: dma_alloc_from_contiguous(): memory range at c0a00000 is busy, retrying
[  251.744558] alloc_contig_range test_pages_isolated(19400, 1b600) failed
[  251.751175] cma: dma_alloc_from_contiguous(): memory range at c0a02000 is busy, retrying
[  251.759920] alloc_contig_range test_pages_isolated(19400, 1b700) failed
[  251.766538] cma: dma_alloc_from_contiguous(): memory range at c0a04000 is busy, retrying
[  251.775201] alloc_contig_range test_pages_isolated(19800, 1b800) failed
[  251.781819] cma: dma_alloc_from_contiguous(): memory range at c0a06000 is busy, retrying
[  251.790491] alloc_contig_range test_pages_isolated(19800, 1b900) failed
[  251.797110] cma: dma_alloc_from_contiguous(): memory range at c0a08000 is busy, retrying
[  251.805767] alloc_contig_range test_pages_isolated(19800, 1ba00) failed
[  251.812387] cma: dma_alloc_from_contiguous(): memory range at c0a0a000 is busy, retrying
[  251.821054] alloc_contig_range test_pages_isolated(19800, 1bb00) failed
[  251.827673] cma: dma_alloc_from_contiguous(): memory range at c0a0c000 is busy, retrying
[  251.836337] alloc_contig_range test_pages_isolated(19c00, 1bc00) failed
[  251.842955] cma: dma_alloc_from_contiguous(): memory range at c0a0e000 is busy, retrying
[  251.851644] alloc_contig_range test_pages_isolated(19c00, 1bd00) failed
[  251.858358] cma: dma_alloc_from_contiguous(): memory range at c0a10000 is busy, retrying
[  251.867046] alloc_contig_range test_pages_isolated(19c00, 1be00) failed
[  251.873652] cma: dma_alloc_from_contiguous(): memory range at c0a12000 is busy, retrying
[  251.882334] alloc_contig_range test_pages_isolated(19c00, 1bf00) failed
[  251.888952] cma: dma_alloc_from_contiguous(): memory range at c0a14000 is busy, retrying
[  251.897632] alloc_contig_range test_pages_isolated(1a000, 1c000) failed
[  251.904235] cma: dma_alloc_from_contiguous(): memory range at c0a16000 is busy, retrying
[  251.912911] alloc_contig_range test_pages_isolated(1a000, 1c100) failed
[  251.919528] cma: dma_alloc_from_contiguous(): memory range at c0a18000 is busy, retrying
[  251.928202] alloc_contig_range test_pages_isolated(1a000, 1c200) failed
[  251.934806] cma: dma_alloc_from_contiguous(): memory range at c0a1a000 is busy, retrying
[  251.943481] alloc_contig_range test_pages_isolated(1a000, 1c300) failed
[  251.950100] cma: dma_alloc_from_contiguous(): memory range at c0a1c000 is busy, retrying
[  251.958914] alloc_contig_range test_pages_isolated(1a400, 1c400) failed
[  251.965518] cma: dma_alloc_from_contiguous(): memory range at c0a1e000 is busy, retrying
[  251.974196] alloc_contig_range test_pages_isolated(1a400, 1c500) failed
[  251.980813] cma: dma_alloc_from_contiguous(): memory range at c0a20000 is busy, retrying
[  251.989486] alloc_contig_range test_pages_isolated(1a400, 1c600) failed
[  251.996092] cma: dma_alloc_from_contiguous(): memory range at c0a22000 is busy, retrying
[  252.004767] alloc_contig_range test_pages_isolated(1a400, 1c700) failed
[  252.011386] cma: dma_alloc_from_contiguous(): memory range at c0a24000 is busy, retrying
[  252.020156] alloc_contig_range test_pages_isolated(1a800, 1c800) failed
[  252.026773] cma: dma_alloc_from_contiguous(): memory range at c0a26000 is busy, retrying
[  252.035434] alloc_contig_range test_pages_isolated(1a800, 1c900) failed
[  252.042054] cma: dma_alloc_from_contiguous(): memory range at c0a28000 is busy, retrying
[  252.050727] alloc_contig_range test_pages_isolated(1a800, 1ca00) failed
[  252.057418] cma: dma_alloc_from_contiguous(): memory range at c0a2a000 is busy, retrying
[  252.066093] alloc_contig_range test_pages_isolated(1a800, 1cb00) failed
[  252.072712] cma: dma_alloc_from_contiguous(): memory range at c0a2c000 is busy, retrying
[  252.081382] alloc_contig_range test_pages_isolated(1ac00, 1cc00) failed
[  252.088001] cma: dma_alloc_from_contiguous(): memory range at c0a2e000 is busy, retrying
[  252.096681] alloc_contig_range test_pages_isolated(1ac00, 1cd00) failed
[  252.103285] cma: dma_alloc_from_contiguous(): memory range at c0a30000 is busy, retrying
[  252.111960] alloc_contig_range test_pages_isolated(1ac00, 1ce00) failed
[  252.118577] cma: dma_alloc_from_contiguous(): memory range at c0a32000 is busy, retrying
[  252.127255] alloc_contig_range test_pages_isolated(1ac00, 1cf00) failed
[  252.133859] cma: dma_alloc_from_contiguous(): memory range at c0a34000 is busy, retrying
[  252.142532] alloc_contig_range test_pages_isolated(1b000, 1d000) failed
[  252.149168] cma: dma_alloc_from_contiguous(): memory range at c0a36000 is busy, retrying
[  252.157944] alloc_contig_range test_pages_isolated(1b000, 1d100) failed
[  252.164548] cma: dma_alloc_from_contiguous(): memory range at c0a38000 is busy, retrying
[  252.173221] alloc_contig_range test_pages_isolated(1b000, 1d200) failed
[  252.179838] cma: dma_alloc_from_contiguous(): memory range at c0a3a000 is busy, retrying
[  252.188513] alloc_contig_range test_pages_isolated(1b000, 1d300) failed
[  252.195117] cma: dma_alloc_from_contiguous(): memory range at c0a3c000 is busy, retrying
[  252.203789] alloc_contig_range test_pages_isolated(1b400, 1d400) failed
[  252.210406] cma: dma_alloc_from_contiguous(): memory range at c0a3e000 is busy, retrying
[  252.219077] alloc_contig_range test_pages_isolated(1b400, 1d500) failed
[  252.225681] cma: dma_alloc_from_contiguous(): memory range at c0a40000 is busy, retrying
[  252.234358] alloc_contig_range test_pages_isolated(1b400, 1d600) failed
[  252.240977] cma: dma_alloc_from_contiguous(): memory range at c0a42000 is busy, retrying
[  252.249648] alloc_contig_range test_pages_isolated(1b400, 1d700) failed
[  252.256254] cma: dma_alloc_from_contiguous(): memory range at c0a44000 is busy, retrying
[  252.265158] alloc_contig_range test_pages_isolated(1b800, 1d800) failed
[  252.271776] cma: dma_alloc_from_contiguous(): memory range at c0a46000 is busy, retrying
[  252.280452] alloc_contig_range test_pages_isolated(1b800, 1d900) failed
[  252.287071] cma: dma_alloc_from_contiguous(): memory range at c0a48000 is busy, retrying
[  252.295739] alloc_contig_range test_pages_isolated(1b800, 1da00) failed
[  252.302366] cma: dma_alloc_from_contiguous(): memory range at c0a4a000 is busy, retrying
[  252.311048] alloc_contig_range test_pages_isolated(1b800, 1db00) failed
[  252.317668] cma: dma_alloc_from_contiguous(): memory range at c0a4c000 is busy, retrying
[  252.326331] alloc_contig_range test_pages_isolated(1bc00, 1dc00) failed
[  252.332951] cma: dma_alloc_from_contiguous(): memory range at c0a4e000 is busy, retrying
[  252.341617] alloc_contig_range test_pages_isolated(1bc00, 1dd00) failed
[  252.348236] cma: dma_alloc_from_contiguous(): memory range at c0a50000 is busy, retrying
[  252.357026] alloc_contig_range test_pages_isolated(1bc00, 1de00) failed
[  252.363631] cma: dma_alloc_from_contiguous(): memory range at c0a52000 is busy, retrying
[  252.372308] alloc_contig_range test_pages_isolated(1bc00, 1df00) failed
[  252.378925] cma: dma_alloc_from_contiguous(): memory range at c0a54000 is busy, retrying
[  252.387596] alloc_contig_range test_pages_isolated(1c000, 1e000) failed
[  252.394199] cma: dma_alloc_from_contiguous(): memory range at c0a56000 is busy, retrying
[  252.402873] alloc_contig_range test_pages_isolated(1c000, 1e100) failed
[  252.409492] cma: dma_alloc_from_contiguous(): memory range at c0a58000 is busy, retrying
[  252.418166] alloc_contig_range test_pages_isolated(1c000, 1e200) failed
[  252.424771] cma: dma_alloc_from_contiguous(): memory range at c0a5a000 is busy, retrying
[  252.433448] alloc_contig_range test_pages_isolated(1c000, 1e300) failed
[  252.440065] cma: dma_alloc_from_contiguous(): memory range at c0a5c000 is busy, retrying
[  252.448759] alloc_contig_range test_pages_isolated(1c400, 1e400) failed
[  252.455362] cma: dma_alloc_from_contiguous(): memory range at c0a5e000 is busy, retrying
[  252.464163] alloc_contig_range test_pages_isolated(1c400, 1e500) failed
[  252.470782] cma: dma_alloc_from_contiguous(): memory range at c0a60000 is busy, retrying
[  252.479460] alloc_contig_range test_pages_isolated(1c400, 1e600) failed
[  252.486065] cma: dma_alloc_from_contiguous(): memory range at c0a62000 is busy, retrying
[  252.494741] alloc_contig_range test_pages_isolated(1c400, 1e700) failed
[  252.501368] cma: dma_alloc_from_contiguous(): memory range at c0a64000 is busy, retrying
[  252.510038] alloc_contig_range test_pages_isolated(1c800, 1e800) failed
[  252.516658] cma: dma_alloc_from_contiguous(): memory range at c0a66000 is busy, retrying
[  252.525320] alloc_contig_range test_pages_isolated(1c800, 1e900) failed
[  252.531939] cma: dma_alloc_from_contiguous(): memory range at c0a68000 is busy, retrying
[  252.540614] alloc_contig_range test_pages_isolated(1c800, 1ea00) failed
[  252.547233] cma: dma_alloc_from_contiguous(): memory range at c0a6a000 is busy, retrying
[  252.555894] alloc_contig_range test_pages_isolated(1c800, 1eb00) failed
[  252.562647] cma: dma_alloc_from_contiguous(): memory range at c0a6c000 is busy, retrying
[  252.571328] alloc_contig_range test_pages_isolated(1cc00, 1ec00) failed
[  252.577948] cma: dma_alloc_from_contiguous(): memory range at c0a6e000 is busy, retrying
[  252.586621] alloc_contig_range test_pages_isolated(1cc00, 1ed00) failed
[  252.593226] cma: dma_alloc_from_contiguous(): memory range at c0a70000 is busy, retrying
[  252.601900] alloc_contig_range test_pages_isolated(1cc00, 1ee00) failed
[  252.608518] cma: dma_alloc_from_contiguous(): memory range at c0a72000 is busy, retrying
[  252.617187] alloc_contig_range test_pages_isolated(1cc00, 1ef00) failed
[  252.623791] cma: dma_alloc_from_contiguous(): memory range at c0a74000 is busy, retrying
[  252.632465] alloc_contig_range test_pages_isolated(1d000, 1f000) failed
[  252.639081] cma: dma_alloc_from_contiguous(): memory range at c0a76000 is busy, retrying
[  252.647754] alloc_contig_range test_pages_isolated(1d000, 1f100) failed
[  252.654359] cma: dma_alloc_from_contiguous(): memory range at c0a78000 is busy, retrying
[  252.663109] alloc_contig_range test_pages_isolated(1d000, 1f200) failed
[  252.669727] cma: dma_alloc_from_contiguous(): memory range at c0a7a000 is busy, retrying
[  252.678398] alloc_contig_range test_pages_isolated(1d000, 1f300) failed
[  252.685003] cma: dma_alloc_from_contiguous(): memory range at c0a7c000 is busy, retrying
[  252.693677] alloc_contig_range test_pages_isolated(1d400, 1f400) failed
[  252.700300] cma: dma_alloc_from_contiguous(): memory range at c0a7e000 is busy, retrying
[  252.708970] alloc_contig_range test_pages_isolated(1d400, 1f500) failed
[  252.715574] cma: dma_alloc_from_contiguous(): memory range at c0a80000 is busy, retrying
[  252.724251] alloc_contig_range test_pages_isolated(1d400, 1f600) failed
[  252.730869] cma: dma_alloc_from_contiguous(): memory range at c0a82000 is busy, retrying
[  252.739541] alloc_contig_range test_pages_isolated(1d400, 1f700) failed
[  252.746146] cma: dma_alloc_from_contiguous(): memory range at c0a84000 is busy, retrying
[  252.754841] alloc_contig_range test_pages_isolated(1d800, 1f800) failed
[  252.761615] cma: dma_alloc_from_contiguous(): memory range at c0a86000 is busy, retrying
[  252.769707] cma: dma_alloc_from_contiguous(): returned   (null)
[  252.775612] failed to allocate 33554432 bytes
[  252.779970] cma: dma_alloc_from_contiguous(cma cf473fc0, count 16384, align 8)
[  252.789478] alloc_contig_range test_pages_isolated(fc00, 13c00) failed
[  252.796006] cma: dma_alloc_from_contiguous(): memory range at c08ce000 is busy, retrying
[  252.805578] alloc_contig_range test_pages_isolated(fc00, 13d00) failed
[  252.812122] cma: dma_alloc_from_contiguous(): memory range at c08d0000 is busy, retrying
[  252.821417] alloc_contig_range test_pages_isolated(fc00, 13e00) failed
[  252.827962] cma: dma_alloc_from_contiguous(): memory range at c08d2000 is busy, retrying
[  252.837204] alloc_contig_range test_pages_isolated(fc00, 13f00) failed
[  252.843729] cma: dma_alloc_from_contiguous(): memory range at c08d4000 is busy, retrying
[  252.852951] alloc_contig_range test_pages_isolated(10000, 14000) failed
[  252.859716] cma: dma_alloc_from_contiguous(): memory range at c08d6000 is busy, retrying
[  252.868973] alloc_contig_range test_pages_isolated(10000, 14100) failed
[  252.875585] cma: dma_alloc_from_contiguous(): memory range at c08d8000 is busy, retrying
[  252.884809] alloc_contig_range test_pages_isolated(10000, 14200) failed
[  252.891433] cma: dma_alloc_from_contiguous(): memory range at c08da000 is busy, retrying
[  252.900669] alloc_contig_range test_pages_isolated(10000, 14300) failed
[  252.907295] cma: dma_alloc_from_contiguous(): memory range at c08dc000 is busy, retrying
[  252.916511] alloc_contig_range test_pages_isolated(10400, 14400) failed
[  252.923121] cma: dma_alloc_from_contiguous(): memory range at c08de000 is busy, retrying
[  252.932325] alloc_contig_range test_pages_isolated(10400, 14500) failed
[  252.938948] cma: dma_alloc_from_contiguous(): memory range at c08e0000 is busy, retrying
[  252.948159] alloc_contig_range test_pages_isolated(10400, 14600) failed
[  252.954769] cma: dma_alloc_from_contiguous(): memory range at c08e2000 is busy, retrying
[  252.964071] alloc_contig_range test_pages_isolated(10400, 14700) failed
[  252.970695] cma: dma_alloc_from_contiguous(): memory range at c08e4000 is busy, retrying
[  252.979913] alloc_contig_range test_pages_isolated(10800, 14800) failed
[  252.986536] cma: dma_alloc_from_contiguous(): memory range at c08e6000 is busy, retrying
[  252.995730] alloc_contig_range test_pages_isolated(10800, 14900) failed
[  253.002356] cma: dma_alloc_from_contiguous(): memory range at c08e8000 is busy, retrying
[  253.011555] alloc_contig_range test_pages_isolated(10800, 14a00) failed
[  253.018198] cma: dma_alloc_from_contiguous(): memory range at c08ea000 is busy, retrying
[  253.027401] alloc_contig_range test_pages_isolated(10800, 14b00) failed
[  253.034011] cma: dma_alloc_from_contiguous(): memory range at c08ec000 is busy, retrying
[  253.043215] alloc_contig_range test_pages_isolated(10c00, 14c00) failed
[  253.049859] cma: dma_alloc_from_contiguous(): memory range at c08ee000 is busy, retrying
[  253.059207] alloc_contig_range test_pages_isolated(10c00, 14d00) failed
[  253.065818] cma: dma_alloc_from_contiguous(): memory range at c08f0000 is busy, retrying
[  253.075029] alloc_contig_range test_pages_isolated(10c00, 14e00) failed
[  253.081651] cma: dma_alloc_from_contiguous(): memory range at c08f2000 is busy, retrying
[  253.090863] alloc_contig_range test_pages_isolated(10c00, 14f00) failed
[  253.097496] cma: dma_alloc_from_contiguous(): memory range at c08f4000 is busy, retrying
[  253.106705] alloc_contig_range test_pages_isolated(11000, 15000) failed
[  253.113315] cma: dma_alloc_from_contiguous(): memory range at c08f6000 is busy, retrying
[  253.122528] alloc_contig_range test_pages_isolated(11000, 15100) failed
[  253.129151] cma: dma_alloc_from_contiguous(): memory range at c08f8000 is busy, retrying
[  253.138358] alloc_contig_range test_pages_isolated(11000, 15200) failed
[  253.144968] cma: dma_alloc_from_contiguous(): memory range at c08fa000 is busy, retrying
[  253.154177] alloc_contig_range test_pages_isolated(11000, 15300) failed
[  253.160997] cma: dma_alloc_from_contiguous(): memory range at c08fc000 is busy, retrying
[  253.170236] alloc_contig_range test_pages_isolated(11400, 15400) failed
[  253.176860] cma: dma_alloc_from_contiguous(): memory range at c08fe000 is busy, retrying
[  253.186073] alloc_contig_range test_pages_isolated(11400, 15500) failed
[  253.192699] cma: dma_alloc_from_contiguous(): memory range at c0900000 is busy, retrying
[  253.201911] alloc_contig_range test_pages_isolated(11400, 15600) failed
[  253.208537] cma: dma_alloc_from_contiguous(): memory range at c0902000 is busy, retrying
[  253.217745] alloc_contig_range test_pages_isolated(11400, 15700) failed
[  253.224355] cma: dma_alloc_from_contiguous(): memory range at c0904000 is busy, retrying
[  253.233560] alloc_contig_range test_pages_isolated(11800, 15800) failed
[  253.240184] cma: dma_alloc_from_contiguous(): memory range at c0906000 is busy, retrying
[  253.249390] alloc_contig_range test_pages_isolated(11800, 15900) failed
[  253.256001] cma: dma_alloc_from_contiguous(): memory range at c0908000 is busy, retrying
[  253.265358] alloc_contig_range test_pages_isolated(11800, 15a00) failed
[  253.271985] cma: dma_alloc_from_contiguous(): memory range at c090a000 is busy, retrying
[  253.281198] alloc_contig_range test_pages_isolated(11800, 15b00) failed
[  253.287823] cma: dma_alloc_from_contiguous(): memory range at c090c000 is busy, retrying
[  253.297039] alloc_contig_range test_pages_isolated(11c00, 15c00) failed
[  253.303649] cma: dma_alloc_from_contiguous(): memory range at c090e000 is busy, retrying
[  253.312858] alloc_contig_range test_pages_isolated(11c00, 15d00) failed
[  253.319482] cma: dma_alloc_from_contiguous(): memory range at c0910000 is busy, retrying
[  253.328691] alloc_contig_range test_pages_isolated(11c00, 15e00) failed
[  253.335301] cma: dma_alloc_from_contiguous(): memory range at c0912000 is busy, retrying
[  253.344513] alloc_contig_range test_pages_isolated(11c00, 15f00) failed
[  253.351158] cma: dma_alloc_from_contiguous(): memory range at c0914000 is busy, retrying
[  253.360595] alloc_contig_range test_pages_isolated(12000, 16000) failed
[  253.367224] cma: dma_alloc_from_contiguous(): memory range at c0916000 is busy, retrying
[  253.376535] alloc_contig_range test_pages_isolated(12000, 16100) failed
[  253.383147] cma: dma_alloc_from_contiguous(): memory range at c0918000 is busy, retrying
[  253.392397] alloc_contig_range test_pages_isolated(12000, 16200) failed
[  253.399026] cma: dma_alloc_from_contiguous(): memory range at c091a000 is busy, retrying
[  253.408272] alloc_contig_range test_pages_isolated(12000, 16300) failed
[  253.414883] cma: dma_alloc_from_contiguous(): memory range at c091c000 is busy, retrying
[  253.424106] alloc_contig_range test_pages_isolated(12400, 16400) failed
[  253.430732] cma: dma_alloc_from_contiguous(): memory range at c091e000 is busy, retrying
[  253.439943] alloc_contig_range test_pages_isolated(12400, 16500) failed
[  253.446566] cma: dma_alloc_from_contiguous(): memory range at c0920000 is busy, retrying
[  253.455764] alloc_contig_range test_pages_isolated(12400, 16600) failed
[  253.462530] cma: dma_alloc_from_contiguous(): memory range at c0922000 is busy, retrying
[  253.471767] alloc_contig_range test_pages_isolated(12400, 16700) failed
[  253.478394] cma: dma_alloc_from_contiguous(): memory range at c0924000 is busy, retrying
[  253.487608] alloc_contig_range test_pages_isolated(12800, 16800) failed
[  253.494219] cma: dma_alloc_from_contiguous(): memory range at c0926000 is busy, retrying
[  253.503444] alloc_contig_range test_pages_isolated(12800, 16900) failed
[  253.510068] cma: dma_alloc_from_contiguous(): memory range at c0928000 is busy, retrying
[  253.519280] alloc_contig_range test_pages_isolated(12800, 16a00) failed
[  253.525891] cma: dma_alloc_from_contiguous(): memory range at c092a000 is busy, retrying
[  253.535099] alloc_contig_range test_pages_isolated(12800, 16b00) failed
[  253.541721] cma: dma_alloc_from_contiguous(): memory range at c092c000 is busy, retrying
[  253.550924] alloc_contig_range test_pages_isolated(12c00, 16c00) failed
[  253.557638] cma: dma_alloc_from_contiguous(): memory range at c092e000 is busy, retrying
[  253.566876] alloc_contig_range test_pages_isolated(12c00, 16d00) failed
[  253.573487] cma: dma_alloc_from_contiguous(): memory range at c0930000 is busy, retrying
[  253.582707] alloc_contig_range test_pages_isolated(12c00, 16e00) failed
[  253.589331] cma: dma_alloc_from_contiguous(): memory range at c0932000 is busy, retrying
[  253.598540] alloc_contig_range test_pages_isolated(12c00, 16f00) failed
[  253.605151] cma: dma_alloc_from_contiguous(): memory range at c0934000 is busy, retrying
[  253.614366] alloc_contig_range test_pages_isolated(13000, 17000) failed
[  253.620989] cma: dma_alloc_from_contiguous(): memory range at c0936000 is busy, retrying
[  253.630195] alloc_contig_range test_pages_isolated(13000, 17100) failed
[  253.636818] cma: dma_alloc_from_contiguous(): memory range at c0938000 is busy, retrying
[  253.646015] alloc_contig_range test_pages_isolated(13000, 17200) failed
[  253.652662] cma: dma_alloc_from_contiguous(): memory range at c093a000 is busy, retrying
[  253.662013] alloc_contig_range test_pages_isolated(13000, 17300) failed
[  253.668645] cma: dma_alloc_from_contiguous(): memory range at c093c000 is busy, retrying
[  253.677869] alloc_contig_range test_pages_isolated(13400, 17400) failed
[  253.684478] cma: dma_alloc_from_contiguous(): memory range at c093e000 is busy, retrying
[  253.693689] alloc_contig_range test_pages_isolated(13400, 17500) failed
[  253.700327] cma: dma_alloc_from_contiguous(): memory range at c0940000 is busy, retrying
[  253.709545] alloc_contig_range test_pages_isolated(13400, 17600) failed
[  253.716156] cma: dma_alloc_from_contiguous(): memory range at c0942000 is busy, retrying
[  253.725374] alloc_contig_range test_pages_isolated(13400, 17700) failed
[  253.732002] cma: dma_alloc_from_contiguous(): memory range at c0944000 is busy, retrying
[  253.741215] alloc_contig_range test_pages_isolated(13800, 17800) failed
[  253.747839] cma: dma_alloc_from_contiguous(): memory range at c0946000 is busy, retrying
[  253.757190] alloc_contig_range test_pages_isolated(13800, 17900) failed
[  253.763800] cma: dma_alloc_from_contiguous(): memory range at c0948000 is busy, retrying
[  253.773028] alloc_contig_range test_pages_isolated(13800, 17a00) failed
[  253.779652] cma: dma_alloc_from_contiguous(): memory range at c094a000 is busy, retrying
[  253.788865] alloc_contig_range test_pages_isolated(13800, 17b00) failed
[  253.795477] cma: dma_alloc_from_contiguous(): memory range at c094c000 is busy, retrying
[  253.804685] alloc_contig_range test_pages_isolated(13c00, 17c00) failed
[  253.811307] cma: dma_alloc_from_contiguous(): memory range at c094e000 is busy, retrying
[  253.820507] alloc_contig_range test_pages_isolated(13c00, 17d00) failed
[  253.827130] cma: dma_alloc_from_contiguous(): memory range at c0950000 is busy, retrying
[  253.836327] alloc_contig_range test_pages_isolated(13c00, 17e00) failed
[  253.842953] cma: dma_alloc_from_contiguous(): memory range at c0952000 is busy, retrying
[  253.852157] alloc_contig_range test_pages_isolated(13c00, 17f00) failed
[  253.858898] cma: dma_alloc_from_contiguous(): memory range at c0954000 is busy, retrying
[  253.868148] alloc_contig_range test_pages_isolated(14000, 18000) failed
[  253.874758] cma: dma_alloc_from_contiguous(): memory range at c0956000 is busy, retrying
[  253.883983] alloc_contig_range test_pages_isolated(14000, 18100) failed
[  253.890608] cma: dma_alloc_from_contiguous(): memory range at c0958000 is busy, retrying
[  253.899834] alloc_contig_range test_pages_isolated(14000, 18200) failed
[  253.906459] cma: dma_alloc_from_contiguous(): memory range at c095a000 is busy, retrying
[  253.915656] alloc_contig_range test_pages_isolated(14000, 18300) failed
[  253.922282] cma: dma_alloc_from_contiguous(): memory range at c095c000 is busy, retrying
[  253.931492] alloc_contig_range test_pages_isolated(14400, 18400) failed
[  253.938117] cma: dma_alloc_from_contiguous(): memory range at c095e000 is busy, retrying
[  253.947361] alloc_contig_range test_pages_isolated(14400, 18500) failed
[  253.953972] cma: dma_alloc_from_contiguous(): memory range at c0960000 is busy, retrying
[  253.963366] alloc_contig_range test_pages_isolated(14400, 18600) failed
[  253.969992] cma: dma_alloc_from_contiguous(): memory range at c0962000 is busy, retrying
[  253.979207] alloc_contig_range test_pages_isolated(14400, 18700) failed
[  253.985818] cma: dma_alloc_from_contiguous(): memory range at c0964000 is busy, retrying
[  253.995032] alloc_contig_range test_pages_isolated(14800, 18800) failed
[  254.001655] cma: dma_alloc_from_contiguous(): memory range at c0966000 is busy, retrying
[  254.010862] alloc_contig_range test_pages_isolated(14800, 18900) failed
[  254.017961] cma: dma_alloc_from_contiguous(): memory range at c0968000 is busy, retrying
[  254.027298] alloc_contig_range test_pages_isolated(14800, 18a00) failed
[  254.033909] cma: dma_alloc_from_contiguous(): memory range at c096a000 is busy, retrying
[  254.043171] alloc_contig_range test_pages_isolated(14800, 18b00) failed
[  254.049796] cma: dma_alloc_from_contiguous(): memory range at c096c000 is busy, retrying
[  254.059195] alloc_contig_range test_pages_isolated(14c00, 18c00) failed
[  254.065805] cma: dma_alloc_from_contiguous(): memory range at c096e000 is busy, retrying
[  254.075030] alloc_contig_range test_pages_isolated(14c00, 18d00) failed
[  254.081654] cma: dma_alloc_from_contiguous(): memory range at c0970000 is busy, retrying
[  254.090871] alloc_contig_range test_pages_isolated(14c00, 18e00) failed
[  254.097503] cma: dma_alloc_from_contiguous(): memory range at c0972000 is busy, retrying
[  254.106721] alloc_contig_range test_pages_isolated(14c00, 18f00) failed
[  254.113334] cma: dma_alloc_from_contiguous(): memory range at c0974000 is busy, retrying
[  254.122563] alloc_contig_range test_pages_isolated(15000, 19000) failed
[  254.129186] cma: dma_alloc_from_contiguous(): memory range at c0976000 is busy, retrying
[  254.138396] alloc_contig_range test_pages_isolated(15000, 19100) failed
[  254.145006] cma: dma_alloc_from_contiguous(): memory range at c0978000 is busy, retrying
[  254.154215] alloc_contig_range test_pages_isolated(15000, 19200) failed
[  254.160911] cma: dma_alloc_from_contiguous(): memory range at c097a000 is busy, retrying
[  254.170135] alloc_contig_range test_pages_isolated(15000, 19300) failed
[  254.176759] cma: dma_alloc_from_contiguous(): memory range at c097c000 is busy, retrying
[  254.185956] alloc_contig_range test_pages_isolated(15400, 19400) failed
[  254.192579] cma: dma_alloc_from_contiguous(): memory range at c097e000 is busy, retrying
[  254.201791] alloc_contig_range test_pages_isolated(15400, 19500) failed
[  254.208417] cma: dma_alloc_from_contiguous(): memory range at c0980000 is busy, retrying
[  254.217621] alloc_contig_range test_pages_isolated(15400, 19600) failed
[  254.224233] cma: dma_alloc_from_contiguous(): memory range at c0982000 is busy, retrying
[  254.233439] alloc_contig_range test_pages_isolated(15400, 19700) failed
[  254.240062] cma: dma_alloc_from_contiguous(): memory range at c0984000 is busy, retrying
[  254.249288] alloc_contig_range test_pages_isolated(15800, 19800) failed
[  254.255898] cma: dma_alloc_from_contiguous(): memory range at c0986000 is busy, retrying
[  254.265220] alloc_contig_range test_pages_isolated(15800, 19900) failed
[  254.271845] cma: dma_alloc_from_contiguous(): memory range at c0988000 is busy, retrying
[  254.281059] alloc_contig_range test_pages_isolated(15800, 19a00) failed
[  254.287684] cma: dma_alloc_from_contiguous(): memory range at c098a000 is busy, retrying
[  254.296904] alloc_contig_range test_pages_isolated(15800, 19b00) failed
[  254.303514] cma: dma_alloc_from_contiguous(): memory range at c098c000 is busy, retrying
[  254.312722] alloc_contig_range test_pages_isolated(15c00, 19c00) failed
[  254.319345] cma: dma_alloc_from_contiguous(): memory range at c098e000 is busy, retrying
[  254.328553] alloc_contig_range test_pages_isolated(15c00, 19d00) failed
[  254.335163] cma: dma_alloc_from_contiguous(): memory range at c0990000 is busy, retrying
[  254.344370] alloc_contig_range test_pages_isolated(15c00, 19e00) failed
[  254.350993] cma: dma_alloc_from_contiguous(): memory range at c0992000 is busy, retrying
[  254.360353] alloc_contig_range test_pages_isolated(15c00, 19f00) failed
[  254.366983] cma: dma_alloc_from_contiguous(): memory range at c0994000 is busy, retrying
[  254.376199] alloc_contig_range test_pages_isolated(16000, 1a000) failed
[  254.382825] cma: dma_alloc_from_contiguous(): memory range at c0996000 is busy, retrying
[  254.392031] alloc_contig_range test_pages_isolated(16000, 1a100) failed
[  254.398664] cma: dma_alloc_from_contiguous(): memory range at c0998000 is busy, retrying
[  254.407943] alloc_contig_range test_pages_isolated(16000, 1a200) failed
[  254.414553] cma: dma_alloc_from_contiguous(): memory range at c099a000 is busy, retrying
[  254.423782] alloc_contig_range test_pages_isolated(16000, 1a300) failed
[  254.430409] cma: dma_alloc_from_contiguous(): memory range at c099c000 is busy, retrying
[  254.439632] alloc_contig_range test_pages_isolated(16400, 1a400) failed
[  254.446242] cma: dma_alloc_from_contiguous(): memory range at c099e000 is busy, retrying
[  254.455459] alloc_contig_range test_pages_isolated(16400, 1a500) failed
[  254.462153] cma: dma_alloc_from_contiguous(): memory range at c09a0000 is busy, retrying
[  254.471387] alloc_contig_range test_pages_isolated(16400, 1a600) failed
[  254.478013] cma: dma_alloc_from_contiguous(): memory range at c09a2000 is busy, retrying
[  254.487238] alloc_contig_range test_pages_isolated(16400, 1a700) failed
[  254.493849] cma: dma_alloc_from_contiguous(): memory range at c09a4000 is busy, retrying
[  254.503072] alloc_contig_range test_pages_isolated(16800, 1a800) failed
[  254.509694] cma: dma_alloc_from_contiguous(): memory range at c09a6000 is busy, retrying
[  254.518905] alloc_contig_range test_pages_isolated(16800, 1a900) failed
[  254.525515] cma: dma_alloc_from_contiguous(): memory range at c09a8000 is busy, retrying
[  254.534731] alloc_contig_range test_pages_isolated(16800, 1aa00) failed
[  254.541355] cma: dma_alloc_from_contiguous(): memory range at c09aa000 is busy, retrying
[  254.550587] alloc_contig_range test_pages_isolated(16800, 1ab00) failed
[  254.557356] cma: dma_alloc_from_contiguous(): memory range at c09ac000 is busy, retrying
[  254.566609] alloc_contig_range test_pages_isolated(16c00, 1ac00) failed
[  254.573219] cma: dma_alloc_from_contiguous(): memory range at c09ae000 is busy, retrying
[  254.582442] alloc_contig_range test_pages_isolated(16c00, 1ad00) failed
[  254.589066] cma: dma_alloc_from_contiguous(): memory range at c09b0000 is busy, retrying
[  254.598282] alloc_contig_range test_pages_isolated(16c00, 1ae00) failed
[  254.604892] cma: dma_alloc_from_contiguous(): memory range at c09b2000 is busy, retrying
[  254.614104] alloc_contig_range test_pages_isolated(16c00, 1af00) failed
[  254.620727] cma: dma_alloc_from_contiguous(): memory range at c09b4000 is busy, retrying
[  254.629933] alloc_contig_range test_pages_isolated(17000, 1b000) failed
[  254.636555] cma: dma_alloc_from_contiguous(): memory range at c09b6000 is busy, retrying
[  254.645746] alloc_contig_range test_pages_isolated(17000, 1b100) failed
[  254.652371] cma: dma_alloc_from_contiguous(): memory range at c09b8000 is busy, retrying
[  254.661715] alloc_contig_range test_pages_isolated(17000, 1b200) failed
[  254.668341] cma: dma_alloc_from_contiguous(): memory range at c09ba000 is busy, retrying
[  254.677548] alloc_contig_range test_pages_isolated(17000, 1b300) failed
[  254.684159] cma: dma_alloc_from_contiguous(): memory range at c09bc000 is busy, retrying
[  254.693365] alloc_contig_range test_pages_isolated(17400, 1b400) failed
[  254.699995] cma: dma_alloc_from_contiguous(): memory range at c09be000 is busy, retrying
[  254.709206] alloc_contig_range test_pages_isolated(17400, 1b500) failed
[  254.715816] cma: dma_alloc_from_contiguous(): memory range at c09c0000 is busy, retrying
[  254.725035] alloc_contig_range test_pages_isolated(17400, 1b600) failed
[  254.731658] cma: dma_alloc_from_contiguous(): memory range at c09c2000 is busy, retrying
[  254.740879] alloc_contig_range test_pages_isolated(17400, 1b700) failed
[  254.747502] cma: dma_alloc_from_contiguous(): memory range at c09c4000 is busy, retrying
[  254.756785] alloc_contig_range test_pages_isolated(17800, 1b800) failed
[  254.763395] cma: dma_alloc_from_contiguous(): memory range at c09c6000 is busy, retrying
[  254.772618] alloc_contig_range test_pages_isolated(17800, 1b900) failed
[  254.779243] cma: dma_alloc_from_contiguous(): memory range at c09c8000 is busy, retrying
[  254.788466] alloc_contig_range test_pages_isolated(17800, 1ba00) failed
[  254.795077] cma: dma_alloc_from_contiguous(): memory range at c09ca000 is busy, retrying
[  254.804294] alloc_contig_range test_pages_isolated(17800, 1bb00) failed
[  254.810918] cma: dma_alloc_from_contiguous(): memory range at c09cc000 is busy, retrying
[  254.820121] alloc_contig_range test_pages_isolated(17c00, 1bc00) failed
[  254.826743] cma: dma_alloc_from_contiguous(): memory range at c09ce000 is busy, retrying
[  254.835943] alloc_contig_range test_pages_isolated(17c00, 1bd00) failed
[  254.842569] cma: dma_alloc_from_contiguous(): memory range at c09d0000 is busy, retrying
[  254.851797] alloc_contig_range test_pages_isolated(17c00, 1be00) failed
[  254.858540] cma: dma_alloc_from_contiguous(): memory range at c09d2000 is busy, retrying
[  254.867784] alloc_contig_range test_pages_isolated(17c00, 1bf00) failed
[  254.874396] cma: dma_alloc_from_contiguous(): memory range at c09d4000 is busy, retrying
[  254.883621] alloc_contig_range test_pages_isolated(18000, 1c000) failed
[  254.890244] cma: dma_alloc_from_contiguous(): memory range at c09d6000 is busy, retrying
[  254.899461] alloc_contig_range test_pages_isolated(18000, 1c100) failed
[  254.906071] cma: dma_alloc_from_contiguous(): memory range at c09d8000 is busy, retrying
[  254.915278] alloc_contig_range test_pages_isolated(18000, 1c200) failed
[  254.921901] cma: dma_alloc_from_contiguous(): memory range at c09da000 is busy, retrying
[  254.931104] alloc_contig_range test_pages_isolated(18000, 1c300) failed
[  254.937729] cma: dma_alloc_from_contiguous(): memory range at c09dc000 is busy, retrying
[  254.946939] alloc_contig_range test_pages_isolated(18400, 1c400) failed
[  254.953548] cma: dma_alloc_from_contiguous(): memory range at c09de000 is busy, retrying
[  254.962976] alloc_contig_range test_pages_isolated(18400, 1c500) failed
[  254.969602] cma: dma_alloc_from_contiguous(): memory range at c09e0000 is busy, retrying
[  254.978819] alloc_contig_range test_pages_isolated(18400, 1c600) failed
[  254.985430] cma: dma_alloc_from_contiguous(): memory range at c09e2000 is busy, retrying
[  254.994643] alloc_contig_range test_pages_isolated(18400, 1c700) failed
[  255.001266] cma: dma_alloc_from_contiguous(): memory range at c09e4000 is busy, retrying
[  255.010485] alloc_contig_range test_pages_isolated(18800, 1c800) failed
[  255.017125] cma: dma_alloc_from_contiguous(): memory range at c09e6000 is busy, retrying
[  255.026319] alloc_contig_range test_pages_isolated(18800, 1c900) failed
[  255.032945] cma: dma_alloc_from_contiguous(): memory range at c09e8000 is busy, retrying
[  255.042149] alloc_contig_range test_pages_isolated(18800, 1ca00) failed
[  255.048774] cma: dma_alloc_from_contiguous(): memory range at c09ea000 is busy, retrying
[  255.058126] alloc_contig_range test_pages_isolated(18800, 1cb00) failed
[  255.064737] cma: dma_alloc_from_contiguous(): memory range at c09ec000 is busy, retrying
[  255.073973] alloc_contig_range test_pages_isolated(18c00, 1cc00) failed
[  255.080597] cma: dma_alloc_from_contiguous(): memory range at c09ee000 is busy, retrying
[  255.089808] alloc_contig_range test_pages_isolated(18c00, 1cd00) failed
[  255.096418] cma: dma_alloc_from_contiguous(): memory range at c09f0000 is busy, retrying
[  255.105656] alloc_contig_range test_pages_isolated(18c00, 1ce00) failed
[  255.112283] cma: dma_alloc_from_contiguous(): memory range at c09f2000 is busy, retrying
[  255.121496] alloc_contig_range test_pages_isolated(18c00, 1cf00) failed
[  255.128122] cma: dma_alloc_from_contiguous(): memory range at c09f4000 is busy, retrying
[  255.137341] alloc_contig_range test_pages_isolated(19000, 1d000) failed
[  255.143952] cma: dma_alloc_from_contiguous(): memory range at c09f6000 is busy, retrying
[  255.153179] alloc_contig_range test_pages_isolated(19000, 1d100) failed
[  255.160000] cma: dma_alloc_from_contiguous(): memory range at c09f8000 is busy, retrying
[  255.169257] alloc_contig_range test_pages_isolated(19000, 1d200) failed
[  255.175867] cma: dma_alloc_from_contiguous(): memory range at c09fa000 is busy, retrying
[  255.185086] alloc_contig_range test_pages_isolated(19000, 1d300) failed
[  255.191711] cma: dma_alloc_from_contiguous(): memory range at c09fc000 is busy, retrying
[  255.200934] alloc_contig_range test_pages_isolated(19400, 1d400) failed
[  255.207558] cma: dma_alloc_from_contiguous(): memory range at c09fe000 is busy, retrying
[  255.216785] alloc_contig_range test_pages_isolated(19400, 1d500) failed
[  255.223396] cma: dma_alloc_from_contiguous(): memory range at c0a00000 is busy, retrying
[  255.232621] alloc_contig_range test_pages_isolated(19400, 1d600) failed
[  255.239245] cma: dma_alloc_from_contiguous(): memory range at c0a02000 is busy, retrying
[  255.248459] alloc_contig_range test_pages_isolated(19400, 1d700) failed
[  255.255069] cma: dma_alloc_from_contiguous(): memory range at c0a04000 is busy, retrying
[  255.264435] alloc_contig_range test_pages_isolated(19800, 1d800) failed
[  255.271064] cma: dma_alloc_from_contiguous(): memory range at c0a06000 is busy, retrying
[  255.280280] alloc_contig_range test_pages_isolated(19800, 1d900) failed
[  255.286906] cma: dma_alloc_from_contiguous(): memory range at c0a08000 is busy, retrying
[  255.296104] alloc_contig_range test_pages_isolated(19800, 1da00) failed
[  255.302740] cma: dma_alloc_from_contiguous(): memory range at c0a0a000 is busy, retrying
[  255.311956] alloc_contig_range test_pages_isolated(19800, 1db00) failed
[  255.318582] cma: dma_alloc_from_contiguous(): memory range at c0a0c000 is busy, retrying
[  255.327791] alloc_contig_range test_pages_isolated(19c00, 1dc00) failed
[  255.334401] cma: dma_alloc_from_contiguous(): memory range at c0a0e000 is busy, retrying
[  255.343608] alloc_contig_range test_pages_isolated(19c00, 1dd00) failed
[  255.350232] cma: dma_alloc_from_contiguous(): memory range at c0a10000 is busy, retrying
[  255.359524] alloc_contig_range test_pages_isolated(19c00, 1de00) failed
[  255.366136] cma: dma_alloc_from_contiguous(): memory range at c0a12000 is busy, retrying
[  255.375362] alloc_contig_range test_pages_isolated(19c00, 1df00) failed
[  255.381987] cma: dma_alloc_from_contiguous(): memory range at c0a14000 is busy, retrying
[  255.391203] alloc_contig_range test_pages_isolated(1a000, 1e000) failed
[  255.397830] cma: dma_alloc_from_contiguous(): memory range at c0a16000 is busy, retrying
[  255.407049] alloc_contig_range test_pages_isolated(1a000, 1e100) failed
[  255.413659] cma: dma_alloc_from_contiguous(): memory range at c0a18000 is busy, retrying
[  255.422869] alloc_contig_range test_pages_isolated(1a000, 1e200) failed
[  255.429495] cma: dma_alloc_from_contiguous(): memory range at c0a1a000 is busy, retrying
[  255.438714] alloc_contig_range test_pages_isolated(1a000, 1e300) failed
[  255.445324] cma: dma_alloc_from_contiguous(): memory range at c0a1c000 is busy, retrying
[  255.454571] alloc_contig_range test_pages_isolated(1a400, 1e400) failed
[  255.461278] cma: dma_alloc_from_contiguous(): memory range at c0a1e000 is busy, retrying
[  255.470513] alloc_contig_range test_pages_isolated(1a400, 1e500) failed
[  255.477137] cma: dma_alloc_from_contiguous(): memory range at c0a20000 is busy, retrying
[  255.486350] alloc_contig_range test_pages_isolated(1a400, 1e600) failed
[  255.492976] cma: dma_alloc_from_contiguous(): memory range at c0a22000 is busy, retrying
[  255.502205] alloc_contig_range test_pages_isolated(1a400, 1e700) failed
[  255.508829] cma: dma_alloc_from_contiguous(): memory range at c0a24000 is busy, retrying
[  255.518039] alloc_contig_range test_pages_isolated(1a800, 1e800) failed
[  255.524649] cma: dma_alloc_from_contiguous(): memory range at c0a26000 is busy, retrying
[  255.533858] alloc_contig_range test_pages_isolated(1a800, 1e900) failed
[  255.540481] cma: dma_alloc_from_contiguous(): memory range at c0a28000 is busy, retrying
[  255.549681] alloc_contig_range test_pages_isolated(1a800, 1ea00) failed
[  255.556292] cma: dma_alloc_from_contiguous(): memory range at c0a2a000 is busy, retrying
[  255.565646] alloc_contig_range test_pages_isolated(1a800, 1eb00) failed
[  255.572271] cma: dma_alloc_from_contiguous(): memory range at c0a2c000 is busy, retrying
[  255.581483] alloc_contig_range test_pages_isolated(1ac00, 1ec00) failed
[  255.588106] cma: dma_alloc_from_contiguous(): memory range at c0a2e000 is busy, retrying
[  255.597322] alloc_contig_range test_pages_isolated(1ac00, 1ed00) failed
[  255.603932] cma: dma_alloc_from_contiguous(): memory range at c0a30000 is busy, retrying
[  255.613141] alloc_contig_range test_pages_isolated(1ac00, 1ee00) failed
[  255.619765] cma: dma_alloc_from_contiguous(): memory range at c0a32000 is busy, retrying
[  255.628984] alloc_contig_range test_pages_isolated(1ac00, 1ef00) failed
[  255.635593] cma: dma_alloc_from_contiguous(): memory range at c0a34000 is busy, retrying
[  255.644805] alloc_contig_range test_pages_isolated(1b000, 1f000) failed
[  255.651429] cma: dma_alloc_from_contiguous(): memory range at c0a36000 is busy, retrying
[  255.660759] alloc_contig_range test_pages_isolated(1b000, 1f100) failed
[  255.667390] cma: dma_alloc_from_contiguous(): memory range at c0a38000 is busy, retrying
[  255.676625] alloc_contig_range test_pages_isolated(1b000, 1f200) failed
[  255.683238] cma: dma_alloc_from_contiguous(): memory range at c0a3a000 is busy, retrying
[  255.692456] alloc_contig_range test_pages_isolated(1b000, 1f300) failed
[  255.699092] cma: dma_alloc_from_contiguous(): memory range at c0a3c000 is busy, retrying
[  255.708307] alloc_contig_range test_pages_isolated(1b400, 1f400) failed
[  255.714919] cma: dma_alloc_from_contiguous(): memory range at c0a3e000 is busy, retrying
[  255.724124] alloc_contig_range test_pages_isolated(1b400, 1f500) failed
[  255.730751] cma: dma_alloc_from_contiguous(): memory range at c0a40000 is busy, retrying
[  255.739962] alloc_contig_range test_pages_isolated(1b400, 1f600) failed
[  255.746605] cma: dma_alloc_from_contiguous(): memory range at c0a42000 is busy, retrying
[  255.755806] alloc_contig_range test_pages_isolated(1b400, 1f700) failed
[  255.762558] cma: dma_alloc_from_contiguous(): memory range at c0a44000 is busy, retrying
[  255.771813] alloc_contig_range test_pages_isolated(1b800, 1f800) failed
[  255.778438] cma: dma_alloc_from_contiguous(): memory range at c0a46000 is busy, retrying
[  255.786519] cma: dma_alloc_from_contiguous(): returned   (null)
[  255.792423] failed to allocate 67108864 bytes
[  255.796779] cma: dma_alloc_from_contiguous(cma cf473fc0, count 32768, align 8)
[  255.808519] alloc_contig_range test_pages_isolated(fc00, 17c00) failed
[  255.815061] cma: dma_alloc_from_contiguous(): memory range at c08ce000 is busy, retrying
[  255.826619] alloc_contig_range test_pages_isolated(fc00, 17d00) failed
[  255.833161] cma: dma_alloc_from_contiguous(): memory range at c08d0000 is busy, retrying
[  255.844357] alloc_contig_range test_pages_isolated(fc00, 17e00) failed
[  255.850916] cma: dma_alloc_from_contiguous(): memory range at c08d2000 is busy, retrying
[  255.862157] alloc_contig_range test_pages_isolated(fc00, 17f00) failed
[  255.868723] cma: dma_alloc_from_contiguous(): memory range at c08d4000 is busy, retrying
[  255.879687] alloc_contig_range test_pages_isolated(10000, 18000) failed
[  255.886311] cma: dma_alloc_from_contiguous(): memory range at c08d6000 is busy, retrying
[  255.897246] alloc_contig_range test_pages_isolated(10000, 18100) failed
[  255.903872] cma: dma_alloc_from_contiguous(): memory range at c08d8000 is busy, retrying
[  255.914803] alloc_contig_range test_pages_isolated(10000, 18200) failed
[  255.921450] cma: dma_alloc_from_contiguous(): memory range at c08da000 is busy, retrying
[  255.932297] alloc_contig_range test_pages_isolated(10000, 18300) failed
[  255.938942] cma: dma_alloc_from_contiguous(): memory range at c08dc000 is busy, retrying
[  255.949782] alloc_contig_range test_pages_isolated(10400, 18400) failed
[  255.956408] cma: dma_alloc_from_contiguous(): memory range at c08de000 is busy, retrying
[  255.967457] alloc_contig_range test_pages_isolated(10400, 18500) failed
[  255.974085] cma: dma_alloc_from_contiguous(): memory range at c08e0000 is busy, retrying
[  255.984967] alloc_contig_range test_pages_isolated(10400, 18600) failed
[  255.991612] cma: dma_alloc_from_contiguous(): memory range at c08e2000 is busy, retrying
[  256.002439] alloc_contig_range test_pages_isolated(10400, 18700) failed
[  256.009083] cma: dma_alloc_from_contiguous(): memory range at c08e4000 is busy, retrying
[  256.020029] alloc_contig_range test_pages_isolated(10800, 18800) failed
[  256.026672] cma: dma_alloc_from_contiguous(): memory range at c08e6000 is busy, retrying
[  256.037508] alloc_contig_range test_pages_isolated(10800, 18900) failed
[  256.044135] cma: dma_alloc_from_contiguous(): memory range at c08e8000 is busy, retrying
[  256.054986] alloc_contig_range test_pages_isolated(10800, 18a00) failed
[  256.061757] cma: dma_alloc_from_contiguous(): memory range at c08ea000 is busy, retrying
[  256.072717] alloc_contig_range test_pages_isolated(10800, 18b00) failed
[  256.079364] cma: dma_alloc_from_contiguous(): memory range at c08ec000 is busy, retrying
[  256.090243] alloc_contig_range test_pages_isolated(10c00, 18c00) failed
[  256.096898] cma: dma_alloc_from_contiguous(): memory range at c08ee000 is busy, retrying
[  256.107803] alloc_contig_range test_pages_isolated(10c00, 18d00) failed
[  256.114431] cma: dma_alloc_from_contiguous(): memory range at c08f0000 is busy, retrying
[  256.125298] alloc_contig_range test_pages_isolated(10c00, 18e00) failed
[  256.131947] cma: dma_alloc_from_contiguous(): memory range at c08f2000 is busy, retrying
[  256.142793] alloc_contig_range test_pages_isolated(10c00, 18f00) failed
[  256.149437] cma: dma_alloc_from_contiguous(): memory range at c08f4000 is busy, retrying
[  256.160528] alloc_contig_range test_pages_isolated(11000, 19000) failed
[  256.167174] cma: dma_alloc_from_contiguous(): memory range at c08f6000 is busy, retrying
[  256.178037] alloc_contig_range test_pages_isolated(11000, 19100) failed
[  256.184663] cma: dma_alloc_from_contiguous(): memory range at c08f8000 is busy, retrying
[  256.195490] alloc_contig_range test_pages_isolated(11000, 19200) failed
[  256.202133] cma: dma_alloc_from_contiguous(): memory range at c08fa000 is busy, retrying
[  256.212934] alloc_contig_range test_pages_isolated(11000, 19300) failed
[  256.219578] cma: dma_alloc_from_contiguous(): memory range at c08fc000 is busy, retrying
[  256.230361] alloc_contig_range test_pages_isolated(11400, 19400) failed
[  256.237005] cma: dma_alloc_from_contiguous(): memory range at c08fe000 is busy, retrying
[  256.247792] alloc_contig_range test_pages_isolated(11400, 19500) failed
[  256.254417] cma: dma_alloc_from_contiguous(): memory range at c0900000 is busy, retrying
[  256.265428] alloc_contig_range test_pages_isolated(11400, 19600) failed
[  256.272077] cma: dma_alloc_from_contiguous(): memory range at c0902000 is busy, retrying
[  256.282911] alloc_contig_range test_pages_isolated(11400, 19700) failed
[  256.289557] cma: dma_alloc_from_contiguous(): memory range at c0904000 is busy, retrying
[  256.300381] alloc_contig_range test_pages_isolated(11800, 19800) failed
[  256.307025] cma: dma_alloc_from_contiguous(): memory range at c0906000 is busy, retrying
[  256.317841] alloc_contig_range test_pages_isolated(11800, 19900) failed
[  256.324467] cma: dma_alloc_from_contiguous(): memory range at c0908000 is busy, retrying
[  256.335263] alloc_contig_range test_pages_isolated(11800, 19a00) failed
[  256.341905] cma: dma_alloc_from_contiguous(): memory range at c090a000 is busy, retrying
[  256.352722] alloc_contig_range test_pages_isolated(11800, 19b00) failed
[  256.359512] cma: dma_alloc_from_contiguous(): memory range at c090c000 is busy, retrying
[  256.370421] alloc_contig_range test_pages_isolated(11c00, 19c00) failed
[  256.377070] cma: dma_alloc_from_contiguous(): memory range at c090e000 is busy, retrying
[  256.388102] alloc_contig_range test_pages_isolated(11c00, 19d00) failed
[  256.394728] cma: dma_alloc_from_contiguous(): memory range at c0910000 is busy, retrying
[  256.405673] alloc_contig_range test_pages_isolated(11c00, 19e00) failed
[  256.412314] cma: dma_alloc_from_contiguous(): memory range at c0912000 is busy, retrying
[  256.423184] alloc_contig_range test_pages_isolated(11c00, 19f00) failed
[  256.429828] cma: dma_alloc_from_contiguous(): memory range at c0914000 is busy, retrying
[  256.440664] alloc_contig_range test_pages_isolated(12000, 1a000) failed
[  256.447306] cma: dma_alloc_from_contiguous(): memory range at c0916000 is busy, retrying
[  256.458373] alloc_contig_range test_pages_isolated(12000, 1a100) failed
[  256.465001] cma: dma_alloc_from_contiguous(): memory range at c0918000 is busy, retrying
[  256.475910] alloc_contig_range test_pages_isolated(12000, 1a200) failed
[  256.482556] cma: dma_alloc_from_contiguous(): memory range at c091a000 is busy, retrying
[  256.493403] alloc_contig_range test_pages_isolated(12000, 1a300) failed
[  256.500058] cma: dma_alloc_from_contiguous(): memory range at c091c000 is busy, retrying
[  256.510872] alloc_contig_range test_pages_isolated(12400, 1a400) failed
[  256.517517] cma: dma_alloc_from_contiguous(): memory range at c091e000 is busy, retrying
[  256.528343] alloc_contig_range test_pages_isolated(12400, 1a500) failed
[  256.534969] cma: dma_alloc_from_contiguous(): memory range at c0920000 is busy, retrying
[  256.545766] alloc_contig_range test_pages_isolated(12400, 1a600) failed
[  256.552410] cma: dma_alloc_from_contiguous(): memory range at c0922000 is busy, retrying
[  256.563458] alloc_contig_range test_pages_isolated(12400, 1a700) failed
[  256.570106] cma: dma_alloc_from_contiguous(): memory range at c0924000 is busy, retrying
[  256.580955] alloc_contig_range test_pages_isolated(12800, 1a800) failed
[  256.587598] cma: dma_alloc_from_contiguous(): memory range at c0926000 is busy, retrying
[  256.598426] alloc_contig_range test_pages_isolated(12800, 1a900) failed
[  256.605053] cma: dma_alloc_from_contiguous(): memory range at c0928000 is busy, retrying
[  256.615860] alloc_contig_range test_pages_isolated(12800, 1aa00) failed
[  256.622504] cma: dma_alloc_from_contiguous(): memory range at c092a000 is busy, retrying
[  256.633300] alloc_contig_range test_pages_isolated(12800, 1ab00) failed
[  256.639944] cma: dma_alloc_from_contiguous(): memory range at c092c000 is busy, retrying
[  256.650769] alloc_contig_range test_pages_isolated(12c00, 1ac00) failed
[  256.657545] cma: dma_alloc_from_contiguous(): memory range at c092e000 is busy, retrying
[  256.668464] alloc_contig_range test_pages_isolated(12c00, 1ad00) failed
[  256.675090] cma: dma_alloc_from_contiguous(): memory range at c0930000 is busy, retrying
[  256.685947] alloc_contig_range test_pages_isolated(12c00, 1ae00) failed
[  256.692590] cma: dma_alloc_from_contiguous(): memory range at c0932000 is busy, retrying
[  256.703420] alloc_contig_range test_pages_isolated(12c00, 1af00) failed
[  256.710064] cma: dma_alloc_from_contiguous(): memory range at c0934000 is busy, retrying
[  256.720874] alloc_contig_range test_pages_isolated(13000, 1b000) failed
[  256.727517] cma: dma_alloc_from_contiguous(): memory range at c0936000 is busy, retrying
[  256.738331] alloc_contig_range test_pages_isolated(13000, 1b100) failed
[  256.744957] cma: dma_alloc_from_contiguous(): memory range at c0938000 is busy, retrying
[  256.755739] alloc_contig_range test_pages_isolated(13000, 1b200) failed
[  256.762601] cma: dma_alloc_from_contiguous(): memory range at c093a000 is busy, retrying
[  256.773497] alloc_contig_range test_pages_isolated(13000, 1b300) failed
[  256.780143] cma: dma_alloc_from_contiguous(): memory range at c093c000 is busy, retrying
[  256.790994] alloc_contig_range test_pages_isolated(13400, 1b400) failed
[  256.797637] cma: dma_alloc_from_contiguous(): memory range at c093e000 is busy, retrying
[  256.808466] alloc_contig_range test_pages_isolated(13400, 1b500) failed
[  256.815092] cma: dma_alloc_from_contiguous(): memory range at c0940000 is busy, retrying
[  256.825900] alloc_contig_range test_pages_isolated(13400, 1b600) failed
[  256.832544] cma: dma_alloc_from_contiguous(): memory range at c0942000 is busy, retrying
[  256.843337] alloc_contig_range test_pages_isolated(13400, 1b700) failed
[  256.849982] cma: dma_alloc_from_contiguous(): memory range at c0944000 is busy, retrying
[  256.861014] alloc_contig_range test_pages_isolated(13800, 1b800) failed
[  256.867668] cma: dma_alloc_from_contiguous(): memory range at c0946000 is busy, retrying
[  256.878553] alloc_contig_range test_pages_isolated(13800, 1b900) failed
[  256.885180] cma: dma_alloc_from_contiguous(): memory range at c0948000 is busy, retrying
[  256.896026] alloc_contig_range test_pages_isolated(13800, 1ba00) failed
[  256.902685] cma: dma_alloc_from_contiguous(): memory range at c094a000 is busy, retrying
[  256.913554] alloc_contig_range test_pages_isolated(13800, 1bb00) failed
[  256.920202] cma: dma_alloc_from_contiguous(): memory range at c094c000 is busy, retrying
[  256.931077] alloc_contig_range test_pages_isolated(13c00, 1bc00) failed
[  256.937724] cma: dma_alloc_from_contiguous(): memory range at c094e000 is busy, retrying
[  256.948601] alloc_contig_range test_pages_isolated(13c00, 1bd00) failed
[  256.955230] cma: dma_alloc_from_contiguous(): memory range at c0950000 is busy, retrying
[  256.966242] alloc_contig_range test_pages_isolated(13c00, 1be00) failed
[  256.972888] cma: dma_alloc_from_contiguous(): memory range at c0952000 is busy, retrying
[  256.983728] alloc_contig_range test_pages_isolated(13c00, 1bf00) failed
[  256.990372] cma: dma_alloc_from_contiguous(): memory range at c0954000 is busy, retrying
[  257.001178] alloc_contig_range test_pages_isolated(14000, 1c000) failed
[  257.007820] cma: dma_alloc_from_contiguous(): memory range at c0956000 is busy, retrying
[  257.018659] alloc_contig_range test_pages_isolated(14000, 1c100) failed
[  257.025285] cma: dma_alloc_from_contiguous(): memory range at c0958000 is busy, retrying
[  257.036088] alloc_contig_range test_pages_isolated(14000, 1c200) failed
[  257.042732] cma: dma_alloc_from_contiguous(): memory range at c095a000 is busy, retrying
[  257.053510] alloc_contig_range test_pages_isolated(14000, 1c300) failed
[  257.060308] cma: dma_alloc_from_contiguous(): memory range at c095c000 is busy, retrying
[  257.071172] alloc_contig_range test_pages_isolated(14400, 1c400) failed
[  257.077816] cma: dma_alloc_from_contiguous(): memory range at c095e000 is busy, retrying
[  257.088656] alloc_contig_range test_pages_isolated(14400, 1c500) failed
[  257.095282] cma: dma_alloc_from_contiguous(): memory range at c0960000 is busy, retrying
[  257.106110] alloc_contig_range test_pages_isolated(14400, 1c600) failed
[  257.112753] cma: dma_alloc_from_contiguous(): memory range at c0962000 is busy, retrying
[  257.123569] alloc_contig_range test_pages_isolated(14400, 1c700) failed
[  257.130213] cma: dma_alloc_from_contiguous(): memory range at c0964000 is busy, retrying
[  257.141002] alloc_contig_range test_pages_isolated(14800, 1c800) failed
[  257.147645] cma: dma_alloc_from_contiguous(): memory range at c0966000 is busy, retrying
[  257.158586] alloc_contig_range test_pages_isolated(14800, 1c900) failed
[  257.165213] cma: dma_alloc_from_contiguous(): memory range at c0968000 is busy, retrying
[  257.176058] alloc_contig_range test_pages_isolated(14800, 1ca00) failed
[  257.182701] cma: dma_alloc_from_contiguous(): memory range at c096a000 is busy, retrying
[  257.193499] alloc_contig_range test_pages_isolated(14800, 1cb00) failed
[  257.200144] cma: dma_alloc_from_contiguous(): memory range at c096c000 is busy, retrying
[  257.210933] alloc_contig_range test_pages_isolated(14c00, 1cc00) failed
[  257.217576] cma: dma_alloc_from_contiguous(): memory range at c096e000 is busy, retrying
[  257.228377] alloc_contig_range test_pages_isolated(14c00, 1cd00) failed
[  257.235002] cma: dma_alloc_from_contiguous(): memory range at c0970000 is busy, retrying
[  257.245783] alloc_contig_range test_pages_isolated(14c00, 1ce00) failed
[  257.252450] cma: dma_alloc_from_contiguous(): memory range at c0972000 is busy, retrying
[  257.263459] alloc_contig_range test_pages_isolated(14c00, 1cf00) failed
[  257.270110] cma: dma_alloc_from_contiguous(): memory range at c0974000 is busy, retrying
[  257.280979] alloc_contig_range test_pages_isolated(15000, 1d000) failed
[  257.287622] cma: dma_alloc_from_contiguous(): memory range at c0976000 is busy, retrying
[  257.298550] alloc_contig_range test_pages_isolated(15000, 1d100) failed
[  257.305178] cma: dma_alloc_from_contiguous(): memory range at c0978000 is busy, retrying
[  257.316110] alloc_contig_range test_pages_isolated(15000, 1d200) failed
[  257.322753] cma: dma_alloc_from_contiguous(): memory range at c097a000 is busy, retrying
[  257.333620] alloc_contig_range test_pages_isolated(15000, 1d300) failed
[  257.340268] cma: dma_alloc_from_contiguous(): memory range at c097c000 is busy, retrying
[  257.351118] alloc_contig_range test_pages_isolated(15400, 1d400) failed
[  257.357915] cma: dma_alloc_from_contiguous(): memory range at c097e000 is busy, retrying
[  257.368840] alloc_contig_range test_pages_isolated(15400, 1d500) failed
[  257.375465] cma: dma_alloc_from_contiguous(): memory range at c0980000 is busy, retrying
[  257.386323] alloc_contig_range test_pages_isolated(15400, 1d600) failed
[  257.392966] cma: dma_alloc_from_contiguous(): memory range at c0982000 is busy, retrying
[  257.403791] alloc_contig_range test_pages_isolated(15400, 1d700) failed
[  257.410433] cma: dma_alloc_from_contiguous(): memory range at c0984000 is busy, retrying
[  257.421236] alloc_contig_range test_pages_isolated(15800, 1d800) failed
[  257.427878] cma: dma_alloc_from_contiguous(): memory range at c0986000 is busy, retrying
[  257.438677] alloc_contig_range test_pages_isolated(15800, 1d900) failed
[  257.445304] cma: dma_alloc_from_contiguous(): memory range at c0988000 is busy, retrying
[  257.456094] alloc_contig_range test_pages_isolated(15800, 1da00) failed
[  257.462841] cma: dma_alloc_from_contiguous(): memory range at c098a000 is busy, retrying
[  257.473733] alloc_contig_range test_pages_isolated(15800, 1db00) failed
[  257.480379] cma: dma_alloc_from_contiguous(): memory range at c098c000 is busy, retrying
[  257.491209] alloc_contig_range test_pages_isolated(15c00, 1dc00) failed
[  257.497863] cma: dma_alloc_from_contiguous(): memory range at c098e000 is busy, retrying
[  257.508695] alloc_contig_range test_pages_isolated(15c00, 1dd00) failed
[  257.515322] cma: dma_alloc_from_contiguous(): memory range at c0990000 is busy, retrying
[  257.526138] alloc_contig_range test_pages_isolated(15c00, 1de00) failed
[  257.532781] cma: dma_alloc_from_contiguous(): memory range at c0992000 is busy, retrying
[  257.543570] alloc_contig_range test_pages_isolated(15c00, 1df00) failed
[  257.550238] cma: dma_alloc_from_contiguous(): memory range at c0994000 is busy, retrying
[  257.561372] alloc_contig_range test_pages_isolated(16000, 1e000) failed
[  257.568024] cma: dma_alloc_from_contiguous(): memory range at c0996000 is busy, retrying
[  257.578941] alloc_contig_range test_pages_isolated(16000, 1e100) failed
[  257.585567] cma: dma_alloc_from_contiguous(): memory range at c0998000 is busy, retrying
[  257.596443] alloc_contig_range test_pages_isolated(16000, 1e200) failed
[  257.603070] cma: dma_alloc_from_contiguous(): memory range at c099a000 is busy, retrying
[  257.613941] alloc_contig_range test_pages_isolated(16000, 1e300) failed
[  257.620587] cma: dma_alloc_from_contiguous(): memory range at c099c000 is busy, retrying
[  257.631422] alloc_contig_range test_pages_isolated(16400, 1e400) failed
[  257.638069] cma: dma_alloc_from_contiguous(): memory range at c099e000 is busy, retrying
[  257.648908] alloc_contig_range test_pages_isolated(16400, 1e500) failed
[  257.655534] cma: dma_alloc_from_contiguous(): memory range at c09a0000 is busy, retrying
[  257.666662] alloc_contig_range test_pages_isolated(16400, 1e600) failed
[  257.673291] cma: dma_alloc_from_contiguous(): memory range at c09a2000 is busy, retrying
[  257.684179] alloc_contig_range test_pages_isolated(16400, 1e700) failed
[  257.690825] cma: dma_alloc_from_contiguous(): memory range at c09a4000 is busy, retrying
[  257.701700] alloc_contig_range test_pages_isolated(16800, 1e800) failed
[  257.708347] cma: dma_alloc_from_contiguous(): memory range at c09a6000 is busy, retrying
[  257.719168] alloc_contig_range test_pages_isolated(16800, 1e900) failed
[  257.725794] cma: dma_alloc_from_contiguous(): memory range at c09a8000 is busy, retrying
[  257.736644] alloc_contig_range test_pages_isolated(16800, 1ea00) failed
[  257.743270] cma: dma_alloc_from_contiguous(): memory range at c09aa000 is busy, retrying
[  257.754094] alloc_contig_range test_pages_isolated(16800, 1eb00) failed
[  257.760862] cma: dma_alloc_from_contiguous(): memory range at c09ac000 is busy, retrying
[  257.771810] alloc_contig_range test_pages_isolated(16c00, 1ec00) failed
[  257.778455] cma: dma_alloc_from_contiguous(): memory range at c09ae000 is busy, retrying
[  257.789335] alloc_contig_range test_pages_isolated(16c00, 1ed00) failed
[  257.795962] cma: dma_alloc_from_contiguous(): memory range at c09b0000 is busy, retrying
[  257.806855] alloc_contig_range test_pages_isolated(16c00, 1ee00) failed
[  257.813481] cma: dma_alloc_from_contiguous(): memory range at c09b2000 is busy, retrying
[  257.824313] alloc_contig_range test_pages_isolated(16c00, 1ef00) failed
[  257.830960] cma: dma_alloc_from_contiguous(): memory range at c09b4000 is busy, retrying
[  257.841789] alloc_contig_range test_pages_isolated(17000, 1f000) failed
[  257.848457] cma: dma_alloc_from_contiguous(): memory range at c09b6000 is busy, retrying
[  257.859636] alloc_contig_range test_pages_isolated(17000, 1f100) failed
[  257.866262] cma: dma_alloc_from_contiguous(): memory range at c09b8000 is busy, retrying
[  257.877207] alloc_contig_range test_pages_isolated(17000, 1f200) failed
[  257.883834] cma: dma_alloc_from_contiguous(): memory range at c09ba000 is busy, retrying
[  257.894696] alloc_contig_range test_pages_isolated(17000, 1f300) failed
[  257.901352] cma: dma_alloc_from_contiguous(): memory range at c09bc000 is busy, retrying
[  257.912215] alloc_contig_range test_pages_isolated(17400, 1f400) failed
[  257.918862] cma: dma_alloc_from_contiguous(): memory range at c09be000 is busy, retrying
[  257.929720] alloc_contig_range test_pages_isolated(17400, 1f500) failed
[  257.936347] cma: dma_alloc_from_contiguous(): memory range at c09c0000 is busy, retrying
[  257.947191] alloc_contig_range test_pages_isolated(17400, 1f600) failed
[  257.953819] cma: dma_alloc_from_contiguous(): memory range at c09c2000 is busy, retrying
[  257.964916] alloc_contig_range test_pages_isolated(17400, 1f700) failed
[  257.971563] cma: dma_alloc_from_contiguous(): memory range at c09c4000 is busy, retrying
[  257.982416] alloc_contig_range test_pages_isolated(17800, 1f800) failed
[  257.989058] cma: dma_alloc_from_contiguous(): memory range at c09c6000 is busy, retrying
[  257.997141] cma: dma_alloc_from_contiguous(): returned   (null)
[  258.003046] failed to allocate 134217728 bytes
[  258.007491] cma: dma_alloc_from_contiguous(cma cf473fc0, count 65536, align 8)
[  258.014695] cma: dma_alloc_from_contiguous(): returned   (null)
[  258.020903] failed to allocate 268435456 bytes
[  258.025801] modprobe: page allocation failure: order:0, mode:0x20
[  258.031908] [<c0013e5c>] (unwind_backtrace+0x0/0xf8) from [<c00908c8>] (warn_alloc_failed+0xc8/0x108)
[  258.041116] [<c00908c8>] (warn_alloc_failed+0xc8/0x108) from [<c0093824>] (__alloc_pages_nodemask+0x5ec/0x800)
[  258.051106] [<c0093824>] (__alloc_pages_nodemask+0x5ec/0x800) from [<c00be9b4>] (cache_alloc_refill+0x404/0x874)
[  258.061262] [<c00be9b4>] (cache_alloc_refill+0x404/0x874) from [<c00bf22c>] (kmem_cache_alloc+0xf0/0x12c)
[  258.070814] [<c00bf22c>] (kmem_cache_alloc+0xf0/0x12c) from [<c0031c3c>] (__sigqueue_alloc+0xc4/0x120)
[  258.080106] [<c0031c3c>] (__sigqueue_alloc+0xc4/0x120) from [<c0032c5c>] (__send_signal.constprop.23+0x8c/0x228)
[  258.090264] [<c0032c5c>] (__send_signal.constprop.23+0x8c/0x228) from [<c0033e88>] (do_notify_parent+0x184/0x1e8)
[  258.100511] [<c0033e88>] (do_notify_parent+0x184/0x1e8) from [<c0029bac>] (do_exit+0x4fc/0x78c)
[  258.109193] [<c0029bac>] (do_exit+0x4fc/0x78c) from [<c002a150>] (do_group_exit+0x3c/0xb0)
[  258.117441] [<c002a150>] (do_group_exit+0x3c/0xb0) from [<c002a1d4>] (__wake_up_parent+0x0/0x18)
[  258.126203] Mem-info:
[  258.128465] Normal per-cpu:
[  258.131249] CPU    0: hi:  186, btch:  31 usd:   0
[  258.136024] CPU    1: hi:  186, btch:  31 usd:  24
[  258.140808] active_anon:715 inactive_anon:3175 isolated_anon:0
[  258.140808]  active_file:953 inactive_file:3185 isolated_file:0
[  258.140808]  unevictable:0 dirty:0 writeback:0 unstable:0
[  258.140808]  free:0 slab_reclaimable:755 slab_unreclaimable:1223
[  258.140808]  mapped:1160 shmem:3196 pagetables:41 bounce:0
[  258.140808]  free_cma:0
[  258.171778] Normal free:0kB min:3500kB low:4372kB high:5248kB active_anon:2860kB inactive_anon:12700kB active_file:3812kB inactive_file:12740kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:767428kB mlocked:0kB dirty:0kB writeback:0kB mapped:4640kB shmem:12784kB slab_reclaimable:3020kB slab_unreclaimable:4892kB kernel_stack:440kB pagetables:164kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[  258.211828] lowmem_reserve[]: 0 0 0
[  258.215324] Normal: 570*4kB 306*8kB 265*16kB 138*32kB 128*64kB 33*128kB 16*256kB 5*512kB 6*1024kB 1*2048kB 105*4096kB = 470728kB
[  258.226928] 7334 total pagecache pages
[  258.230663] 0 pages in swap cache
[  258.233966] Swap cache stats: add 0, delete 0, find 0/0
[  258.239174] Free swap  = 0kB
[  258.242041] Total swap = 0kB
[  258.260503] 131072 pages of RAM
[  258.263633] 117791 free pages
[  258.266587] 2995 reserved pages
[  258.269715] 1978 slab pages
[  258.272496] 3430 pages shared
[  258.275451] 0 pages swap cached
[  258.278582] SLAB: Unable to allocate memory on node 0 (gfp=0x20)
[  258.284573]   cache: sigqueue, object size: 168, order: 0
[  258.289955]   node 0: slabs: 0/0, objs: 0/0, free: 0

-sh-4.2#

Thierry Reding

author

2012-10-02 12:48 UTC #19 lore raw

Quoted 101 lines · Thierry Reding

Quoted 71 lines · Mel Gorman
Quoted 70 lines · Thierry Reding
Quoted 68 lines · Mel Gorman
Quoted 59 lines · Thierry Reding
Quoted 38 lines · Thierry Reding
Quoted 37 lines · Thierry Reding
Quoted 23 lines · Mel Gorman
Quoted 22 lines · Peter Ujfalusi
Hi,
Quoted 19 lines · Mel Gorman
Quoted 4 lines
I hope this patch fixes the bug. If this patch fixes the problem but has some problem about description or someone has better idea, feel free to modify and resend to akpm, Please.
A full revert is overkill. Can the following patch be tested as a potential replacement please?
---8<---
mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix1
CMA is reported to be broken in next-20120926. Minchan Kim pointed out that this was due to nr_scanned != total_isolated in the case of CMA because PageBuddy pages are one scan but many isolations in CMA. This patch should address the problem.
This patch is a fix for mm-compaction-acquire-the-zone-lock-as-late-as-possible-fix-2.patch
Quoted 8 lines
Quoted 5 lines
Quoted 1 line
Signed-off-by Mel Gorman <[email protected]>
linux-next + this patch alone also works for me.
Tested-by Peter Ujfalusi <[email protected]>
Thanks Peter. I expect it also works for Thierry as I expect you were suffering the same problem but obviously confirmation of that would be nice.
I've been running a few tests and indeed this solves the obvious problem that the coherent pool cannot be created at boot (which in turn caused the ethernet adapter to fail on Tegra).
Quoted 6 lines
Quoted 3 lines
However I've been working on the Tegra DRM driver, which uses CMA to allocate large chunks of framebuffer memory and these are now failing. I'll need to check if Minchan's patch solves that problem as well.
Indeed, with Minchan's patch the DRM can allocate the framebuffer without a problem. Something else must be wrong then.
However, depending on the size of the allocation it also happens with Minchan's patch. What I see is this:
[   60.736729] alloc_contig_range test_pages_isolated(1e900, 1f0e9) failed
[   60.743572] alloc_contig_range test_pages_isolated(1ea00, 1f1e9) failed
[   60.750424] alloc_contig_range test_pages_isolated(1ea00, 1f2e9) failed
[   60.757239] alloc_contig_range test_pages_isolated(1ec00, 1f3e9) failed
[   60.764066] alloc_contig_range test_pages_isolated(1ec00, 1f4e9) failed
[   60.770893] alloc_contig_range test_pages_isolated(1ec00, 1f5e9) failed
[   60.777698] alloc_contig_range test_pages_isolated(1ec00, 1f6e9) failed
[   60.784526] alloc_contig_range test_pages_isolated(1f000, 1f7e9) failed
[   60.791148] drm tegra: Failed to alloc buffer: 8294400
Quoted 2 lines
I'm pretty sure this did work before next-20120926.
Can you double check this please?
This is a separate bug but may be related to the same series. However, CMA should be ignoring the "skip" hints and because it's sync compaction it should not be exiting due to lock contention. Maybe Marek will spot it.
Quoted 7 lines
Quoted 3 lines
I've written a small test module that tries to allocate growing blocks of contiguous memory and it seems like with your patch this always fails at 8 MiB.
You earlier said it also happens with Minchan's but your statment here is less clear. Does Minchan's also fail on the 8MiB boundary? Second, did the test module work with next-20120926?
The cmatest module that I use tries to allocate blocks from 4 KiB to 256 MiB (in increments of powers of two). With next-20120926 this always fails at 8 MiB, independent of the CMA size setting (though I didn't test setting the CMA size to <= 8 MiB, I assumed that would make the 8 MiB allocation fail anyway). Note that I had to apply the attached patch which fixes a build failure on next-20120926. I believe that Mark Brown posted a similar fix a few days ago. I'm also attaching a log from the module's test run. There's also an interesting page allocation failure at the very end of that log which I have not seen with next-20120925.
I've run the same tests on next-20120925 with the CMA size set to 256 MiB and only the 256 MiB allocation fails. This is normal since there are other modules that already allocate smaller buffers from CMA, so a whole 256 MiB won't be available.
Vanilla 3.6-rc6 shows the same behaviour as next-20120925. I will try 3.6-rc7 next since that's what next-20120926 is based on. If that succeeds I'll try to bisect between 3.6-rc7 and next-20120926 to find the culprit, but that will probably take some more time as I need to apply at least one other commit on top to get the board to boot at all.

Quoted 3 lines

So this really isn't all that new, but I just wanted to confirm my results from last week. We'll see if bisection shows up something interesting.

I just finished bisecting this and git reports:

	3750280f8bd0ed01753a72542756a8c82ab27933 is the first bad commit

I'm attaching the complete bisection log and a diff of all the changes applied on top of the bad commit to make it compile and run on my board. Most of the patch is probably not important, though. There are two hunks which have the pageblock changes I already posted an two other hunks with the patch you posted earlier.

I hope this helps. If you want me to run any other tests, please let me know.

Thierry

# bad: [0ea37fe67df08c854d0a39c8ff094c363eda0bb6] Add linux-next specific files for 20120926
# good: [979570e02981d4a8fc20b3cc8fd651856c98ee9d] Linux 3.6-rc7
git bisect start 'next-20120926' 'v3.6-rc7'
# good: [e5f962c00ba860a6e442a2c2b53bd256332a8a3c] Merge remote-tracking branch 'spi-mb/spi-next'
git bisect good e5f962c00ba860a6e442a2c2b53bd256332a8a3c
# good: [d2ec64078851952bbd347cd41119c49a80877c4a] Merge remote-tracking branch 'usb/usb-next'
git bisect good d2ec64078851952bbd347cd41119c49a80877c4a
# good: [71d5f924a70be51a8005a11277ee032797b644f5] Merge remote-tracking branch 'gpio-lw/for-next'
git bisect good 71d5f924a70be51a8005a11277ee032797b644f5
# good: [71d5f924a70be51a8005a11277ee032797b644f5] Merge remote-tracking branch 'gpio-lw/for-next'
git bisect good 71d5f924a70be51a8005a11277ee032797b644f5
# good: [058aa5321c0521c89b030b4d5e63d82a4973dd5f] Merge branch 'late/kirkwood' into for-next
git bisect good 058aa5321c0521c89b030b4d5e63d82a4973dd5f
# good: [c32532bac72e1261fcc9e3f5d6edf0a7f30e0f45] drivers/scsi/atp870u.c: fix bad use of udelay
git bisect good c32532bac72e1261fcc9e3f5d6edf0a7f30e0f45
# bad: [ab032478bf2d6bdd6815669a5d2e64b4d753ca43] sections: fix section conflicts in drivers/macintosh git bisect bad ab032478bf2d6bdd6815669a5d2e64b4d753ca43
# bad: [ab032478bf2d6bdd6815669a5d2e64b4d753ca43] sections: fix section conflicts in drivers/macintosh git bisect bad ab032478bf2d6bdd6815669a5d2e64b4d753ca43
# good: [9735f3816804ac2c4d694d5b69412275acd453ef] rbtree: remove prior augmented rbtree implementation git bisect good 9735f3816804ac2c4d694d5b69412275acd453ef
# good: [030585452e07d6642b60ed157b637fa905926fb0] Revert "mm: have order > 0 compaction start off where it left" git bisect good 030585452e07d6642b60ed157b637fa905926fb0
# good: [030585452e07d6642b60ed157b637fa905926fb0] Revert "mm: have order > 0 compaction start off where it left" git bisect good 030585452e07d6642b60ed157b637fa905926fb0
# bad: [03ad92e89a2c77bbefe442abe00745192b28d8e5] mm: move all mmu notifier invocations to be done outside the PT lock git bisect bad 03ad92e89a2c77bbefe442abe00745192b28d8e5
# bad: [ec2e5c22ffcec23861fdde919f30ddf6abe7abf9] memcg: trivial fixes for Documentation/cgroups/memory.txt git bisect bad ec2e5c22ffcec23861fdde919f30ddf6abe7abf9
# bad: [0ef8ed15fb52b8a9fd0af217a46044e3c4eb5b30] memory-hotplug: don't replace lowmem pages with highmem git bisect bad 0ef8ed15fb52b8a9fd0af217a46044e3c4eb5b30
# bad: [b1bda30b420402da621f0ca7d844668fb66c9c64] mm/hugetlb.c: remove duplicate inclusion of header file git bisect bad b1bda30b420402da621f0ca7d844668fb66c9c64
# bad: [8686ddfe5d23e7b0f3e250d979b9734aac61b64a] mm: compaction: Restart compaction from near where it left off git bisect bad 8686ddfe5d23e7b0f3e250d979b9734aac61b64a
# bad: [8686ddfe5d23e7b0f3e250d979b9734aac61b64a] mm: compaction: Restart compaction from near where it left off git bisect bad 8686ddfe5d23e7b0f3e250d979b9734aac61b64a
# bad: [3750280f8bd0ed01753a72542756a8c82ab27933] mm: compaction: cache if a pageblock was scanned and no pages were isolated git bisect bad 3750280f8bd0ed01753a72542756a8c82ab27933

arch/arm/boot/dts/tegra20-harmony.dts +5 -1

index c3ef1ad..e701d3d 100644
@@ -7,7 +7,11 @@
 	compatible = "nvidia,harmony", "nvidia,tegra20";
 
 	memory {
-		reg = <0x00000000 0x40000000>;
+		reg = <0x00000000 0x20000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8 root=LABEL=boot:/rootfs.img ro ignore_loglevel earlyprintk";
 	};
 
 	pinmux {

arch/arm/configs/tegra_defconfig +28 ~~-41~~

140 lines not on this page · raw message

drivers/base/Kconfig +3 -0

index 08b4c52..431d387 100644
@@ -280,6 +280,9 @@ config CMA_AREAS
 
 	  If unsure, leave the default value "7".
 
+config CMA_TEST
+	tristate "CMA test module"
+
 endif
 
 endmenu

drivers/base/Makefile +1 -0

index 5aa2d70..c4b2a97 100644
@@ -7,6 +7,7 @@ obj-y			:= core.o bus.o dd.o syscore.o \
 			   topology.o
 obj-$(CONFIG_DEVTMPFS)	+= devtmpfs.o
 obj-$(CONFIG_CMA) += dma-contiguous.o
+obj-$(CONFIG_CMA_TEST)	+= cmatest.o
 obj-y			+= power/
 obj-$(CONFIG_HAS_DMA)	+= dma-mapping.o
 obj-$(CONFIG_HAVE_GENERIC_DMA_COHERENT) += dma-coherent.o

drivers/base/cmatest.c new file +38 -0

new file mode 100644
index 0000000..23d8f7f
@@ -0,0 +1,38 @@
+#ifdef CONFIG_CMA_DEBUG
+#  ifndef DEBUG
+#    define DEBUG
+#  endif
+#endif
+
+#include <linux/dma-mapping.h>
+#include <linux/module.h>
+
+static int cmatest_init(void)
+{
+	unsigned int i;
+
+	for (i = 12; i <= 28; i++) {
+		dma_addr_t phys;
+		void *ptr;
+
+		ptr = dma_alloc_writecombine(NULL, 1 << i, &phys, GFP_KERNEL);
+		if (ptr) {
+			pr_debug("successfully allocated %u bytes\n", 1 << i);
+			dma_free_writecombine(NULL, 1 << i, ptr, phys);
+		} else {
+			pr_debug("failed to allocate %u bytes\n", 1 << i);
+		}
+	}
+
+	return 0;
+}
+module_init(cmatest_init);
+
+static void cmatest_exit(void)
+{
+}
+module_exit(cmatest_exit);
+
+MODULE_AUTHOR("Thierry Reding <[email protected]>");
+MODULE_DESCRIPTION("Contiguous Memory Allocator test module");
+MODULE_LICENSE("GPL v2");

include/linux/audit.h +51 ~~-138~~

219 lines not on this page · raw message

include/linux/pageblock-flags.h +2 -2

index eed27f4..9ed5841 100644
@@ -30,7 +30,7 @@ enum pageblock_bits {
 	PB_migrate,
 	PB_migrate_end = PB_migrate + 3 - 1,
 			/* 3 bits required for migrate types */
-#ifdef CONFIG_COMPACTION
+#if defined(CONFIG_COMPACTION) || defined(CONFIG_CMA)
 	PB_migrate_skip,/* If set the block is skipped by compaction */
 #endif /* CONFIG_COMPACTION */
 	NR_PAGEBLOCK_BITS

@@ -68,7 +68,7 @@ unsigned long get_pageblock_flags_group(struct page *page,
 void set_pageblock_flags_group(struct page *page, unsigned long flags,
 					int start_bitidx, int end_bitidx);
 
-#ifdef CONFIG_COMPACTION
+#if defined(CONFIG_COMPACTION) || defined(CONFIG_CMA)
 #define get_pageblock_skip(page) \
 			get_pageblock_flags_group(page, PB_migrate_skip,     \
 							PB_migrate_skip + 1)

mm/compaction.c +3 -2

index 2769d96..3382869 100644
@@ -238,6 +238,7 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
 				struct list_head *freelist,
 				bool strict)
 {
+	unsigned long nr_strict_required = end_pfn - blockpfn;
 	int nr_scanned = 0, total_isolated = 0;
 	struct page *cursor, *valid_page = NULL;
 	unsigned long flags;

@@ -300,10 +301,10 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
 
 	/*
 	 * If strict isolation is requested by CMA then check that all the
-	 * pages scanned were isolated. If there were any failures, 0 is
+	 * pages requested were isolated. If there were any failures, 0 is
 	 * returned and CMA will fail.
 	 */
-	if (strict && nr_scanned != total_isolated)
+	if (strict && nr_strict_required != total_isolated)
 		total_isolated = 0;
 
 	if (locked)

Mel Gorman

2012-10-02 14:42 UTC #20 lore raw

Quoted 8 lines · Thierry Reding

Quoted 3 lines
So this really isn't all that new, but I just wanted to confirm my results from last week. We'll see if bisection shows up something interesting.
I just finished bisecting this and git reports:
	3750280f8bd0ed01753a72542756a8c82ab27933 is the first bad commit

Quoted 9 lines

I'm attaching the complete bisection log and a diff of all the changes applied on top of the bad commit to make it compile and run on my board. Most of the patch is probably not important, though. There are two hunks which have the pageblock changes I already posted an two other hunks with the patch you posted earlier.
I hope this helps. If you want me to run any other tests, please let me know.

Can you test with this on top please?

---8<---

mm/compaction.c +4 ~~-11~~

index d6e260a..1f1d46d 100644
@@ -374,20 +374,13 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
  * a free page).
  */
 unsigned long
-isolate_freepages_range(unsigned long start_pfn, unsigned long end_pfn)
+isolate_freepages_range(struct compact_control *cc,
+			unsigned long start_pfn, unsigned long end_pfn)
 {
 	unsigned long isolated, pfn, block_end_pfn;
-	struct zone *zone = NULL;
+	struct zone *zone = cc->zone;
 	LIST_HEAD(freelist);
 
-	/* cc needed for isolate_freepages_block to acquire zone->lock */
-	struct compact_control cc = {
-		.sync = true,
-	};
-
-	if (pfn_valid(start_pfn))
-		cc.zone = zone = page_zone(pfn_to_page(start_pfn));
-
 	for (pfn = start_pfn; pfn < end_pfn; pfn += isolated) {
 		if (!pfn_valid(pfn) || zone != page_zone(pfn_to_page(pfn)))
 			break;

@@ -399,7 +392,7 @@ isolate_freepages_range(unsigned long start_pfn, unsigned long end_pfn)
 		block_end_pfn = ALIGN(pfn + 1, pageblock_nr_pages);
 		block_end_pfn = min(block_end_pfn, end_pfn);
 
-		isolated = isolate_freepages_block(&cc, pfn, block_end_pfn,
+		isolated = isolate_freepages_block(cc, pfn, block_end_pfn,
 						   &freelist, true);
 
 		/*

mm/internal.h +2 -1

index 7052289..ffe0473 100644
@@ -135,7 +135,8 @@ struct compact_control {
 };
 
 unsigned long
-isolate_freepages_range(unsigned long start_pfn, unsigned long end_pfn);
+isolate_freepages_range(struct compact_control *cc,
+			unsigned long start_pfn, unsigned long end_pfn);
 unsigned long
 isolate_migratepages_range(struct zone *zone, struct compact_control *cc,
 			   unsigned long low_pfn, unsigned long end_pfn);

mm/page_alloc.c +13 ~~-13~~

index 0a1906b..076d08d 100644
@@ -5650,23 +5650,14 @@ static unsigned long pfn_max_align_up(unsigned long pfn)
 }
 
 /* [start, end) must belong to a single zone. */
-static int __alloc_contig_migrate_range(unsigned long start, unsigned long end)
+static int __alloc_contig_migrate_range(struct compact_control *cc,
+					unsigned long start, unsigned long end)
 {
 	/* This function is based on compact_zone() from compaction.c. */
-
 	unsigned long pfn = start;
 	unsigned int tries = 0;
 	int ret = 0;
 
-	struct compact_control cc = {
-		.nr_migratepages = 0,
-		.order = -1,
-		.zone = page_zone(pfn_to_page(start)),
-		.sync = true,
-		.ignore_skip_hint = true,
-	};
-	INIT_LIST_HEAD(&cc.migratepages);
-
 	migrate_prep_local();
 
 	while (pfn < end || !list_empty(&cc.migratepages)) {

@@ -5775,6 +5766,15 @@ int alloc_contig_range(unsigned long start, unsigned long end,
 	unsigned long outer_start, outer_end;
 	int ret = 0, order;
 
+	struct compact_control cc = {
+		.nr_migratepages = 0,
+		.order = -1,
+		.zone = page_zone(pfn_to_page(start)),
+		.sync = true,
+		.ignore_skip_hint = true,
+	};
+	INIT_LIST_HEAD(&cc.migratepages);
+
 	/*
 	 * What we do here is we mark all pageblocks in range as
 	 * MIGRATE_ISOLATE.  Because pageblock and max order pages may

@@ -5804,7 +5804,7 @@ int alloc_contig_range(unsigned long start, unsigned long end,
 	if (ret)
 		goto done;
 
-	ret = __alloc_contig_migrate_range(start, end);
+	ret = __alloc_contig_migrate_range(cc, start, end);
 	if (ret)
 		goto done;

@@ -5853,7 +5853,7 @@ int alloc_contig_range(unsigned long start, unsigned long end,
 	__reclaim_pages(zone, GFP_HIGHUSER_MOVABLE, end-start);
 
 	/* Grab isolated pages from freelists. */
-	outer_end = isolate_freepages_range(outer_start, end);
+	outer_end = isolate_freepages_range(cc, outer_start, end);
 	if (!outer_end) {
 		ret = -EBUSY;
 		goto done;

Thierry Reding

author

2012-10-02 15:03 UTC #21 lore raw

Quoted 15 lines · Mel Gorman

Quoted 14 lines · Thierry Reding
Quoted 3 lines
So this really isn't all that new, but I just wanted to confirm my results from last week. We'll see if bisection shows up something interesting.
I just finished bisecting this and git reports:
	3750280f8bd0ed01753a72542756a8c82ab27933 is the first bad commit
I'm attaching the complete bisection log and a diff of all the changes applied on top of the bad commit to make it compile and run on my board. Most of the patch is probably not important, though. There are two hunks which have the pageblock changes I already posted an two other hunks with the patch you posted earlier.

Quoted 5 lines

Quoted 3 lines
I hope this helps. If you want me to run any other tests, please let me know.
Can you test with this on top please?

That doesn't build on top of the bad commit. Or is it supposed to go on top of next-20120926?

Note that I've also been doing some more testing on next-20121002 and things seem to be better. The cmatest module runs successfully. That seems to be due to commit 061d7cd, which, IIRC, is the correct patch to fix the build breakage that I tried to fix with #ifdef'ery. For CMA this allows the allocations to succeed, but with COMPACTION enabled this should still fail. My test case was always !COMPACTION, though.

However, when I run the original test case, which is allocation of a framebuffer for HDMI it still fails. The allocation size is 8294400 bytes. Exactly 8 MiB (== 8388608 bytes) and 16 MiB (== 16777216 bytes) do work properly. 8 MiB + 4 KiB for instance fails as well, while exactly 10 MiB works again.

Thierry

Mel Gorman

2012-10-02 15:12 UTC #22 lore raw

Quoted 16 lines · Thierry Reding

Quoted 15 lines · Mel Gorman
Quoted 14 lines · Thierry Reding
Quoted 3 lines
So this really isn't all that new, but I just wanted to confirm my results from last week. We'll see if bisection shows up something interesting.
I just finished bisecting this and git reports:
	3750280f8bd0ed01753a72542756a8c82ab27933 is the first bad commit
I'm attaching the complete bisection log and a diff of all the changes applied on top of the bad commit to make it compile and run on my board. Most of the patch is probably not important, though. There are two hunks which have the pageblock changes I already posted an two other hunks with the patch you posted earlier.

Quoted 9 lines

Quoted 5 lines
Quoted 3 lines
I hope this helps. If you want me to run any other tests, please let me know.
Can you test with this on top please?
That doesn't build on top of the bad commit. Or is it supposed to go on top of next-20120926?

It doesn't build or do you mean it doesn't apply? Assuming the problem was that it didn't apply then try this one. It applies on top of next-20120928 which is the closest tag I have to next-20120926.

---8<---
mm: compaction: Cache if a pageblock was scanned and no pages were isolated -fix3

CMA requires that the PG_migrate_skip hint be skipped but it was only skipping it when isolating pages for migration, not for free. Ensure cc->isolate_skip_hint gets passed in both cases.

This is a fix for mm-compaction-cache-if-a-pageblock-was-scanned-and-no-pages-were-isolated-fix.patch

Signed-off-by Mel Gorman <[email protected]>

---
 mm/compaction.c |   16 ++++------------
 mm/internal.h   |    3 ++-
 mm/page_alloc.c |   26 +++++++++++++-------------
 3 files changed, 19 insertions(+), 26 deletions(-)

mm/compaction.c +4 ~~-12~~

index f7a5ff5..62697fb 100644
@@ -345,22 +345,14 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
  * a free page).
  */
 unsigned long
-isolate_freepages_range(unsigned long start_pfn, unsigned long end_pfn)
+isolate_freepages_range(struct compact_control *cc,
+			unsigned long start_pfn, unsigned long end_pfn)
 {
 	unsigned long isolated, pfn, block_end_pfn;
-	struct zone *zone = NULL;
 	LIST_HEAD(freelist);
 
-	/* cc needed for isolate_freepages_block to acquire zone->lock */
-	struct compact_control cc = {
-		.sync = true,
-	};
-
-	if (pfn_valid(start_pfn))
-		cc.zone = zone = page_zone(pfn_to_page(start_pfn));
-
 	for (pfn = start_pfn; pfn < end_pfn; pfn += isolated) {
-		if (!pfn_valid(pfn) || zone != page_zone(pfn_to_page(pfn)))
+		if (!pfn_valid(pfn) || cc->zone != page_zone(pfn_to_page(pfn)))
 			break;
 
 		/*

@@ -370,7 +362,7 @@ isolate_freepages_range(unsigned long start_pfn, unsigned long end_pfn)
 		block_end_pfn = ALIGN(pfn + 1, pageblock_nr_pages);
 		block_end_pfn = min(block_end_pfn, end_pfn);
 
-		isolated = isolate_freepages_block(&cc, pfn, block_end_pfn,
+		isolated = isolate_freepages_block(cc, pfn, block_end_pfn,
 						   &freelist, true);
 
 		/*

mm/internal.h +2 -1

index f652660..4ea7497 100644
@@ -131,7 +131,8 @@ struct compact_control {
 };
 
 unsigned long
-isolate_freepages_range(unsigned long start_pfn, unsigned long end_pfn);
+isolate_freepages_range(struct compact_control *cc,
+			unsigned long start_pfn, unsigned long end_pfn);
 unsigned long
 isolate_migratepages_range(struct zone *zone, struct compact_control *cc,
 			   unsigned long low_pfn, unsigned long end_pfn);

mm/page_alloc.c +13 ~~-12~~

index e238fa34..6564e93 100644
@@ -5678,23 +5678,15 @@ __alloc_contig_migrate_alloc(struct page *page, unsigned long private,
 }
 
 /* [start, end) must belong to a single zone. */
-static int __alloc_contig_migrate_range(unsigned long start, unsigned long end)
+static int __alloc_contig_migrate_range(struct compact_control *cc,
+					unsigned long start, unsigned long end)
 {
 	/* This function is based on compact_zone() from compaction.c. */
 	unsigned long nr_reclaimed;
 	unsigned long pfn = start;
 	unsigned int tries = 0;
 	int ret = 0;
 
-	struct compact_control cc = {
-		.nr_migratepages = 0,
-		.order = -1,
-		.zone = page_zone(pfn_to_page(start)),
-		.sync = true,
-		.ignore_skip_hint = true,
-	};
-	INIT_LIST_HEAD(&cc.migratepages);
-
 	migrate_prep_local();
 
 	while (pfn < end || !list_empty(&cc.migratepages)) {

@@ -5803,6 +5794,15 @@ int alloc_contig_range(unsigned long start, unsigned long end,
 	unsigned long outer_start, outer_end;
 	int ret = 0, order;
 
+	struct compact_control cc = {
+		.nr_migratepages = 0,
+		.order = -1,
+		.zone = page_zone(pfn_to_page(start)),
+		.sync = true,
+		.ignore_skip_hint = true,
+	};
+	INIT_LIST_HEAD(&cc.migratepages);
+
 	/*
 	 * What we do here is we mark all pageblocks in range as
 	 * MIGRATE_ISOLATE.  Because pageblock and max order pages may

@@ -5832,7 +5832,7 @@ int alloc_contig_range(unsigned long start, unsigned long end,
 	if (ret)
 		goto done;
 
-	ret = __alloc_contig_migrate_range(start, end);
+	ret = __alloc_contig_migrate_range(cc, start, end);
 	if (ret)
 		goto done;

@@ -5881,7 +5881,7 @@ int alloc_contig_range(unsigned long start, unsigned long end,
 	__reclaim_pages(zone, GFP_HIGHUSER_MOVABLE, end-start);
 
 	/* Grab isolated pages from freelists. */
-	outer_end = isolate_freepages_range(outer_start, end);
+	outer_end = isolate_freepages_range(cc, outer_start, end);
 	if (!outer_end) {
 		ret = -EBUSY;
 		goto done;

Minchan Kim

Acked-by

2012-10-08 08:02 UTC #23 lore raw

Hi Mel,

Quoted 34 lines · Mel Gorman

Quoted 16 lines · Thierry Reding
Quoted 15 lines · Mel Gorman
Quoted 14 lines · Thierry Reding
Quoted 3 lines
So this really isn't all that new, but I just wanted to confirm my results from last week. We'll see if bisection shows up something interesting.
I just finished bisecting this and git reports:
	3750280f8bd0ed01753a72542756a8c82ab27933 is the first bad commit
I'm attaching the complete bisection log and a diff of all the changes applied on top of the bad commit to make it compile and run on my board. Most of the patch is probably not important, though. There are two hunks which have the pageblock changes I already posted an two other hunks with the patch you posted earlier.
Quoted 9 lines
Quoted 5 lines
Quoted 3 lines
I hope this helps. If you want me to run any other tests, please let me know.
Can you test with this on top please?
That doesn't build on top of the bad commit. Or is it supposed to go on top of next-20120926?
It doesn't build or do you mean it doesn't apply? Assuming the problem was that it didn't apply then try this one. It applies on top of next-20120928 which is the closest tag I have to next-20120926.
---8<---
mm: compaction: Cache if a pageblock was scanned and no pages were isolated -fix3

Quoted 8 lines

CMA requires that the PG_migrate_skip hint be skipped but it was only skipping it when isolating pages for migration, not for free. Ensure cc->isolate_skip_hint gets passed in both cases.
This is a fix for mm-compaction-cache-if-a-pageblock-was-scanned-and-no-pages-were-isolated-fix.patch
Signed-off-by Mel Gorman <[email protected]>

Acked-by Minchan Kim <[email protected]>

But please resend below compile error fixing.

mm/compaction.c +4 ~~-12~~

index 136debd..ee461b8 100644
@@ -372,22 +372,14 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
  * a free page).
  */
 unsigned long
-isolate_freepages_range(unsigned long start_pfn, unsigned long end_pfn)
+isolate_freepages_range(struct compact_control *cc,
+			unsigned long start_pfn, unsigned long end_pfn)
 {
 	unsigned long isolated, pfn, block_end_pfn;
-	struct zone *zone = NULL;
 	LIST_HEAD(freelist);
 
-	/* cc needed for isolate_freepages_block to acquire zone->lock */
-	struct compact_control cc = {
-		.sync = true,
-	};
-
-	if (pfn_valid(start_pfn))
-		cc.zone = zone = page_zone(pfn_to_page(start_pfn));
-
 	for (pfn = start_pfn; pfn < end_pfn; pfn += isolated) {
-		if (!pfn_valid(pfn) || zone != page_zone(pfn_to_page(pfn)))
+		if (!pfn_valid(pfn) || cc->zone != page_zone(pfn_to_page(pfn)))
 			break;
 
 		/*

@@ -397,7 +389,7 @@ isolate_freepages_range(unsigned long start_pfn, unsigned long end_pfn)
 		block_end_pfn = ALIGN(pfn + 1, pageblock_nr_pages);
 		block_end_pfn = min(block_end_pfn, end_pfn);
 
-		isolated = isolate_freepages_block(&cc, pfn, block_end_pfn,
+		isolated = isolate_freepages_block(cc, pfn, block_end_pfn,
 						   &freelist, true);
 
 		/*

mm/internal.h +2 -1

index 9d5d276..a3ce781 100644
@@ -135,7 +135,8 @@ struct compact_control {
 };
 
 unsigned long
-isolate_freepages_range(unsigned long start_pfn, unsigned long end_pfn);
+isolate_freepages_range(struct compact_control *cc,
+			unsigned long start_pfn, unsigned long end_pfn);
 unsigned long
 isolate_migratepages_range(struct zone *zone, struct compact_control *cc,
 	unsigned long low_pfn, unsigned long end_pfn, bool unevictable);

mm/page_alloc.c +22 ~~-21~~

91 lines not on this page · raw message

Signature · 8 lines

Kind regards,
Minchan Kim

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Mel Gorman

2012-10-08 08:48 UTC #24 lore raw

Quoted 41 lines · Minchan Kim

Hi Mel,
Quoted 38 lines · Mel Gorman
Quoted 16 lines · Thierry Reding
Quoted 15 lines · Mel Gorman
Quoted 14 lines · Thierry Reding
Quoted 3 lines
So this really isn't all that new, but I just wanted to confirm my results from last week. We'll see if bisection shows up something interesting.
I just finished bisecting this and git reports:
	3750280f8bd0ed01753a72542756a8c82ab27933 is the first bad commit
I'm attaching the complete bisection log and a diff of all the changes applied on top of the bad commit to make it compile and run on my board. Most of the patch is probably not important, though. There are two hunks which have the pageblock changes I already posted an two other hunks with the patch you posted earlier.
Quoted 9 lines
Quoted 5 lines
Quoted 3 lines
I hope this helps. If you want me to run any other tests, please let me know.
Can you test with this on top please?
That doesn't build on top of the bad commit. Or is it supposed to go on top of next-20120926?
It doesn't build or do you mean it doesn't apply? Assuming the problem was that it didn't apply then try this one. It applies on top of next-20120928 which is the closest tag I have to next-20120926.
---8<---
mm: compaction: Cache if a pageblock was scanned and no pages were isolated -fix3
CMA requires that the PG_migrate_skip hint be skipped but it was only skipping it when isolating pages for migration, not for free. Ensure cc->isolate_skip_hint gets passed in both cases.

Quoted 8 lines

Quoted 4 lines
This is a fix for mm-compaction-cache-if-a-pageblock-was-scanned-and-no-pages-were-isolated-fix.patch
Signed-off-by Mel Gorman <[email protected]>
Acked-by Minchan Kim <[email protected]>
But please resend below compile error fixing.

Thanks Minchan. I did resent this patch to Andrew with the subject "[PATCH]
mm: compaction: Cache if a pageblock was scanned and no pages were isolated -fix3". It should have had the build errors fixed but has not been picked up yet.

Signature · 8 lines

Mel Gorman
SUSE Labs

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Bartlomiej Zolnierkiewicz

2012-10-09 08:41 UTC #25 lore raw

Hi,

Quoted 48 lines · On Monday 08 October 2012 10:48:07 Mel Gorman wrote:

Quoted 47 lines · Minchan Kim
Hi Mel,
Quoted 34 lines · Mel Gorman
Quoted 16 lines · Thierry Reding
Quoted 15 lines · Mel Gorman
Quoted 14 lines · Thierry Reding
Quoted 3 lines
So this really isn't all that new, but I just wanted to confirm my results from last week. We'll see if bisection shows up something interesting.
I just finished bisecting this and git reports:
	3750280f8bd0ed01753a72542756a8c82ab27933 is the first bad commit
I'm attaching the complete bisection log and a diff of all the changes applied on top of the bad commit to make it compile and run on my board. Most of the patch is probably not important, though. There are two hunks which have the pageblock changes I already posted an two other hunks with the patch you posted earlier.
Quoted 9 lines
Quoted 5 lines
Quoted 3 lines
I hope this helps. If you want me to run any other tests, please let me know.
Can you test with this on top please?
That doesn't build on top of the bad commit. Or is it supposed to go on top of next-20120926?
It doesn't build or do you mean it doesn't apply? Assuming the problem was that it didn't apply then try this one. It applies on top of next-20120928 which is the closest tag I have to next-20120926.
---8<---
mm: compaction: Cache if a pageblock was scanned and no pages were isolated -fix3
Quoted 8 lines
CMA requires that the PG_migrate_skip hint be skipped but it was only skipping it when isolating pages for migration, not for free. Ensure cc->isolate_skip_hint gets passed in both cases.
This is a fix for mm-compaction-cache-if-a-pageblock-was-scanned-and-no-pages-were-isolated-fix.patch
Signed-off-by Mel Gorman <[email protected]>
Acked-by Minchan Kim <[email protected]>

Quoted 7 lines

Quoted 2 lines
But please resend below compile error fixing.
Thanks Minchan. I did resent this patch to Andrew with the subject "[PATCH]
mm: compaction: Cache if a pageblock was scanned and no pages were isolated -fix3". It should have had the build errors fixed but has not been picked up yet.

I also need following patch to make CONFIG_CMA=y && CONFIG_COMPACTION=y case work:

From: Bartlomiej Zolnierkiewicz <[email protected]>
Subject: [PATCH] mm: compaction: cache if a pageblock was scanned and no pages were isolated - cma fix

Patch "mm: compaction: cache if a pageblock was scanned and no pages were isolated" needs a following fix to successfully boot next-20121002 kernel (same with next-20121008) with CONFIG_CMA=y and CONFIG_COMPACTION=y (with applied -fix1, -fix2, -fix3 patches from Mel Gorman and also with cmatest module from Thierry Reding compiled in).

Signed-off-by Bartlomiej Zolnierkiewicz <[email protected]>

Signed-off-by Kyungmin Park <[email protected]>

---
 mm/compaction.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

mm/compaction.c +2 -1

Index: b/mm/compaction.c
===================================================================
@@ -117,7 +117,8 @@ static void update_pageblock_skip(struct
 			bool migrate_scanner)
 {
 	struct zone *zone = cc->zone;
-	if (!page)
+
+	if (!page || cc->ignore_skip_hint)
 		return;
 
 	if (!nr_isolated) {

Mel Gorman

2012-10-09 10:11 UTC #26 lore raw

Quoted 12 lines · Bartlomiej Zolnierkiewicz

I also need following patch to make CONFIG_CMA=y && CONFIG_COMPACTION=y case work:
From: Bartlomiej Zolnierkiewicz <[email protected]>
Subject: [PATCH] mm: compaction: cache if a pageblock was scanned and no pages were isolated - cma fix
Patch "mm: compaction: cache if a pageblock was scanned and no pages were isolated" needs a following fix to successfully boot next-20121002 kernel (same with next-20121008) with CONFIG_CMA=y and CONFIG_COMPACTION=y (with applied -fix1, -fix2, -fix3 patches from Mel Gorman and also with cmatest module from Thierry Reding compiled in).

Why is it needed to make it boot? CMA should not care about the PG_migrate_skip hint being set because it should always ignore it in alloc_contig_range() due to cc->ignore_skip_hint. It's not obvious to me why this fixes a boot failure and I wonder if it's papering over some underlying problem. Can you provide more details please?

Quoted 20 lines

Signed-off-by Bartlomiej Zolnierkiewicz <[email protected]>
Signed-off-by Kyungmin Park <[email protected]>
---
 mm/compaction.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
Index: b/mm/compaction.c
===================================================================
mm/compaction.c +2 -1
@@ -117,7 +117,8 @@ static void update_pageblock_skip(struct
 			bool migrate_scanner)
 {
 	struct zone *zone = cc->zone;
-	if (!page)
+
+	if (!page || cc->ignore_skip_hint)
 		return;
 
 	if (!nr_isolated) {

Signature · 8 lines

Mel Gorman
SUSE Labs

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Thierry Reding

author

2012-10-09 11:03 UTC #27 lore raw

Quoted 14 lines · Mel Gorman

Quoted 12 lines · Bartlomiej Zolnierkiewicz
I also need following patch to make CONFIG_CMA=y && CONFIG_COMPACTION=y case work:
From: Bartlomiej Zolnierkiewicz <[email protected]>
Subject: [PATCH] mm: compaction: cache if a pageblock was scanned and no pages were isolated - cma fix
Patch "mm: compaction: cache if a pageblock was scanned and no pages were isolated" needs a following fix to successfully boot next-20121002 kernel (same with next-20121008) with CONFIG_CMA=y and CONFIG_COMPACTION=y (with applied -fix1, -fix2, -fix3 patches from Mel Gorman and also with cmatest module from Thierry Reding compiled in).

Quoted 5 lines

Why is it needed to make it boot? CMA should not care about the PG_migrate_skip hint being set because it should always ignore it in alloc_contig_range() due to cc->ignore_skip_hint. It's not obvious to me why this fixes a boot failure and I wonder if it's papering over some underlying problem. Can you provide more details please?

I can confirm that on top of next-20121009 this fixes all the remaining issues with CMA that I've been seeing.

By the way, would it be useful to add the CMA test module to the mainline tree as a tool to test for this kind of regressions? It could probably be enhanced to perform more checks or use random allocation sizes for better coverage.

Thierry

Bartlomiej Zolnierkiewicz

2012-10-09 11:10 UTC #28 lore raw

In reply to Mel Gorman

Quoted 7 lines · On Tuesday 09 October 2012 12:11:43 Mel Gorman wrote:

Quoted 6 lines · Bartlomiej Zolnierkiewicz
I also need following patch to make CONFIG_CMA=y && CONFIG_COMPACTION=y case work:
From: Bartlomiej Zolnierkiewicz <[email protected]>
Subject: [PATCH] mm: compaction: cache if a pageblock was scanned and no pages were isolated - cma fix

Quoted 8 lines

Quoted 6 lines
Patch "mm: compaction: cache if a pageblock was scanned and no pages were isolated" needs a following fix to successfully boot next-20121002 kernel (same with next-20121008) with CONFIG_CMA=y and CONFIG_COMPACTION=y (with applied -fix1, -fix2, -fix3 patches from Mel Gorman and also with cmatest module from Thierry Reding compiled in).
Why is it needed to make it boot? CMA should not care about the

It boots without Thierry's cmatest module but then fails on CMA allocation attempt (I used out-of-tree /dev/cma_test interface to generate CMA allocation request from user-space).

Quoted 4 lines

PG_migrate_skip hint being set because it should always ignore it in alloc_contig_range() due to cc->ignore_skip_hint. It's not obvious to me why this fixes a boot failure and I wonder if it's papering over some underlying problem. Can you provide more details please?

I just compared CONFIG_COMPACTION=n and =y cases initially, figured out the difference and did the change. However on a closer look it seems that {get,clear,set}_pageblock_skip() use incorrect bit ranges (please compare to bit ranges used by {get,set}_pageblock_flags() used for migration types) and can overwrite pageblock migratetype of the next pageblock in the bitmap (I wonder how could this code ever worked before?).

Quoted 19 lines

Quoted 19 lines
Signed-off-by Bartlomiej Zolnierkiewicz <[email protected]>
Signed-off-by Kyungmin Park <[email protected]>
---
 mm/compaction.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
Index: b/mm/compaction.c
===================================================================
mm/compaction.c +2 -1
@@ -117,7 +117,8 @@ static void update_pageblock_skip(struct
 			bool migrate_scanner)
 {
 	struct zone *zone = cc->zone;
-	if (!page)
+
+	if (!page || cc->ignore_skip_hint)
 		return;
 

Quoted 1 line

mm/compaction.c static void update_pageblock_skip(struct · line 124
Quoted 1 line
mm/compaction.c +0 -0
 	if (!nr_isolated) {

The patch below also fixes the issue for me:

From: Bartlomiej Zolnierkiewicz <[email protected]>
Subject: [PATCH] mm: compaction: fix bit ranges in {get,clear,set}_pageblock_skip()

{get,clear,set}_pageblock_skip() use incorrect bit ranges (please compare to bit ranges used by {get,set}_pageblock_flags() used for migration types) and can overwrite pageblock migratetype of the next pageblock in the bitmap.

Signed-off-by Bartlomiej Zolnierkiewicz <[email protected]>

Signed-off-by Kyungmin Park <[email protected]>

---
 include/linux/pageblock-flags.h |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

include/linux/pageblock-flags.h +3 -3

Index: b/include/linux/pageblock-flags.h
===================================================================
@@ -71,13 +71,13 @@ void set_pageblock_flags_group(struct pa
 #ifdef CONFIG_COMPACTION
 #define get_pageblock_skip(page) \
 			get_pageblock_flags_group(page, PB_migrate_skip,     \
-							PB_migrate_skip + 1)
+							PB_migrate_skip)
 #define clear_pageblock_skip(page) \
 			set_pageblock_flags_group(page, 0, PB_migrate_skip,  \
-							PB_migrate_skip + 1)
+							PB_migrate_skip)
 #define set_pageblock_skip(page) \
 			set_pageblock_flags_group(page, 1, PB_migrate_skip,  \
-							PB_migrate_skip + 1)
+							PB_migrate_skip)
 #endif /* CONFIG_COMPACTION */
 
 #define get_pageblock_flags(page) \

Mel Gorman

Acked-by

2012-10-09 11:32 UTC #29 lore raw

Quoted 15 lines · Bartlomiej Zolnierkiewicz

Quoted 14 lines · On Tuesday 09 October 2012 12:11:43 Mel Gorman wrote:
Quoted 12 lines · Bartlomiej Zolnierkiewicz
I also need following patch to make CONFIG_CMA=y && CONFIG_COMPACTION=y case work:
From: Bartlomiej Zolnierkiewicz <[email protected]>
Subject: [PATCH] mm: compaction: cache if a pageblock was scanned and no pages were isolated - cma fix
Patch "mm: compaction: cache if a pageblock was scanned and no pages were isolated" needs a following fix to successfully boot next-20121002 kernel (same with next-20121008) with CONFIG_CMA=y and CONFIG_COMPACTION=y (with applied -fix1, -fix2, -fix3 patches from Mel Gorman and also with cmatest module from Thierry Reding compiled in).

Quoted 6 lines

Quoted 1 line
Why is it needed to make it boot? CMA should not care about the
It boots without Thierry's cmatest module but then fails on CMA allocation attempt (I used out-of-tree /dev/cma_test interface to generate CMA allocation request from user-space).

I see.

Quoted 11 lines

Quoted 4 lines
PG_migrate_skip hint being set because it should always ignore it in alloc_contig_range() due to cc->ignore_skip_hint. It's not obvious to me why this fixes a boot failure and I wonder if it's papering over some underlying problem. Can you provide more details please?
I just compared CONFIG_COMPACTION=n and =y cases initially, figured out the difference and did the change. However on a closer look it seems that {get,clear,set}_pageblock_skip() use incorrect bit ranges (please compare to bit ranges used by {get,set}_pageblock_flags() used for migration types) and can overwrite pageblock migratetype of the next pageblock in the bitmap

You're right.

Quoted 3 lines

(I wonder how could this code ever
worked before?).

Because it would corrupt the adjacent block and muck up the migratetype. This would hurt fragmentation avoidance but it would not be obvious for a long time. When I was checking this, I only checked that the values of the block being set were correct, I missed that I was corrupting the adjacent blocks.

Quoted 26 lines

Quoted 19 lines
Quoted 19 lines
Signed-off-by Bartlomiej Zolnierkiewicz <[email protected]>
Signed-off-by Kyungmin Park <[email protected]>
---
 mm/compaction.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
Index: b/mm/compaction.c
===================================================================
mm/compaction.c +2 -1
@@ -117,7 +117,8 @@ static void update_pageblock_skip(struct
 			bool migrate_scanner)
 {
 	struct zone *zone = cc->zone;
-	if (!page)
+
+	if (!page || cc->ignore_skip_hint)
 		return;
 
Quoted 1 line
mm/compaction.c static void update_pageblock_skip(struct · line 124
Quoted 1 line
mm/compaction.c +0 -0
 	if (!nr_isolated) {
The patch below also fixes the issue for me:
From: Bartlomiej Zolnierkiewicz <[email protected]>
Subject: [PATCH] mm: compaction: fix bit ranges in {get,clear,set}_pageblock_skip()

Quoted 6 lines

{get,clear,set}_pageblock_skip() use incorrect bit ranges (please compare to bit ranges used by {get,set}_pageblock_flags() used for migration types) and can overwrite pageblock migratetype of the next pageblock in the bitmap.
Signed-off-by Bartlomiej Zolnierkiewicz <[email protected]>
Signed-off-by Kyungmin Park <[email protected]>

Acked-by Mel Gorman <[email protected]>

Can you resend this patch on its own to Andrew asking for it to be picked up please? This thread is quite long and could easily get lost in the noise. Thanks

Signature · 8 lines

Mel Gorman
SUSE Labs

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Thierry Reding

author Tested-by

2012-10-09 11:38 UTC #30 lore raw

In reply to Bartlomiej Zolnierkiewicz

Quoted 81 lines · Bartlomiej Zolnierkiewicz

Quoted 7 lines · On Tuesday 09 October 2012 12:11:43 Mel Gorman wrote:
Quoted 6 lines · Bartlomiej Zolnierkiewicz
I also need following patch to make CONFIG_CMA=y && CONFIG_COMPACTION=y case work:
From: Bartlomiej Zolnierkiewicz <[email protected]>
Subject: [PATCH] mm: compaction: cache if a pageblock was scanned and no pages were isolated - cma fix
Quoted 8 lines
Quoted 6 lines
Patch "mm: compaction: cache if a pageblock was scanned and no pages were isolated" needs a following fix to successfully boot next-20121002 kernel (same with next-20121008) with CONFIG_CMA=y and CONFIG_COMPACTION=y (with applied -fix1, -fix2, -fix3 patches from Mel Gorman and also with cmatest module from Thierry Reding compiled in).
Why is it needed to make it boot? CMA should not care about the
It boots without Thierry's cmatest module but then fails on CMA allocation attempt (I used out-of-tree /dev/cma_test interface to generate CMA allocation request from user-space).
Quoted 4 lines
PG_migrate_skip hint being set because it should always ignore it in alloc_contig_range() due to cc->ignore_skip_hint. It's not obvious to me why this fixes a boot failure and I wonder if it's papering over some underlying problem. Can you provide more details please?
I just compared CONFIG_COMPACTION=n and =y cases initially, figured out the difference and did the change. However on a closer look it seems that {get,clear,set}_pageblock_skip() use incorrect bit ranges (please compare to bit ranges used by {get,set}_pageblock_flags() used for migration types) and can overwrite pageblock migratetype of the next pageblock in the bitmap (I wonder how could this code ever worked before?).
Quoted 19 lines
Quoted 19 lines
Signed-off-by Bartlomiej Zolnierkiewicz <[email protected]>
Signed-off-by Kyungmin Park <[email protected]>
---
 mm/compaction.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
Index: b/mm/compaction.c
===================================================================
mm/compaction.c +2 -1
@@ -117,7 +117,8 @@ static void update_pageblock_skip(struct
 			bool migrate_scanner)
 {
 	struct zone *zone = cc->zone;
-	if (!page)
+
+	if (!page || cc->ignore_skip_hint)
 		return;
 
Quoted 1 line
mm/compaction.c static void update_pageblock_skip(struct · line 124
Quoted 1 line
mm/compaction.c +0 -0
 	if (!nr_isolated) {
The patch below also fixes the issue for me:
From: Bartlomiej Zolnierkiewicz <[email protected]>
Subject: [PATCH] mm: compaction: fix bit ranges in {get,clear,set}_pageblock_skip()
{get,clear,set}_pageblock_skip() use incorrect bit ranges (please compare to bit ranges used by {get,set}_pageblock_flags() used for migration types) and can overwrite pageblock migratetype of the next pageblock in the bitmap.
Signed-off-by Bartlomiej Zolnierkiewicz <[email protected]>
Signed-off-by Kyungmin Park <[email protected]>
---
 include/linux/pageblock-flags.h |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
Index: b/include/linux/pageblock-flags.h
===================================================================
include/linux/pageblock-flags.h +1 -1
@@ -71,13 +71,13 @@ void set_pageblock_flags_group(struct pa
 #ifdef CONFIG_COMPACTION
 #define get_pageblock_skip(page) \
 			get_pageblock_flags_group(page, PB_migrate_skip,     \
-							PB_migrate_skip + 1)
+							PB_migrate_skip)
 #define clear_pageblock_skip(page) \

include/linux/pageblock-flags.h void set_pageblock_flags_group(struct pa · line 83

Quoted 10 lines

include/linux/pageblock-flags.h +2 -2

 			set_pageblock_flags_group(page, 0, PB_migrate_skip,  \
-							PB_migrate_skip + 1)
+							PB_migrate_skip)
 #define set_pageblock_skip(page) \
 			set_pageblock_flags_group(page, 1, PB_migrate_skip,  \
-							PB_migrate_skip + 1)
+							PB_migrate_skip)
 #endif /* CONFIG_COMPACTION */
 
 #define get_pageblock_flags(page) \

Tested-by Thierry Reding <[email protected]>

Mel Gorman

2012-09-28 10:53 UTC #31 lore raw

In reply to Thierry Reding

Quoted 6 lines · Thierry Reding

Quoted 6 lines
I've been running a few tests and indeed this solves the obvious problem that the coherent pool cannot be created at boot (which in turn caused the ethernet adapter to fail on Tegra).

Quoted 7 lines

Quoted 3 lines
However I've been working on the Tegra DRM driver, which uses CMA to allocate large chunks of framebuffer memory and these are now failing. I'll need to check if Minchan's patch solves that problem as well.
Indeed, with Minchan's patch the DRM can allocate the framebuffer without a problem. Something else must be wrong then.

Can you check if Minchan's version 100% succeeds and my version 100% fails or is it a case that sometimes CMA works and sometimes fails with both versions?

I'll examine the patch of course and see what flaw is there this time.

Signature · 8 lines

Mel Gorman
SUSE Labs

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Mel Gorman

2012-10-04 14:00 UTC #32 lore raw

PATCH 1/1 mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix1

In reply to Minchan Kim

The following patch is still missing from linux-next/akpm so am resending in case it got lost in the mess.

This patch is a fix for mm-compaction-acquire-the-zone-lock-as-late-as-possible-fix-2.patch

Signed-off-by Mel Gorman <[email protected]>

mm/compaction.c +3 -2

index 136debd..ed3b8f1 100644
@@ -282,6 +282,7 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
 {
 	int nr_scanned = 0, total_isolated = 0;
 	struct page *cursor, *valid_page = NULL;
+	unsigned long nr_strict_required = end_pfn - blockpfn;
 	unsigned long flags;
 	bool locked = false;

@@ -342,10 +343,10 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
 
 	/*
 	 * If strict isolation is requested by CMA then check that all the
-	 * pages scanned were isolated. If there were any failures, 0 is
+	 * pages requested were isolated. If there were any failures, 0 is
 	 * returned and CMA will fail.
 	 */
-	if (strict && nr_scanned != total_isolated)
+	if (strict && nr_strict_required != total_isolated)
 		total_isolated = 0;
 
 	if (locked)

Mel Gorman

2012-10-05 09:59 UTC #33 lore raw

PATCH 1/1 mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix2

Thierry reported offline that the strict check "mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix1" check is still too strict because it's possible for more pages to be isolated than required. This patch corrects the check.

There are still CMA-related problems but they are "somewhere else" yet to be determined.

Signed-off-by Mel Gorman <[email protected]>

---
 mm/compaction.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

mm/compaction.c +1 -1

index 2c4ce17..9eef558 100644
@@ -346,7 +346,7 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
 	 * pages requested were isolated. If there were any failures, 0 is
 	 * returned and CMA will fail.
 	 */
-	if (strict && nr_strict_required != total_isolated)
+	if (strict && nr_strict_required > total_isolated)
 		total_isolated = 0;
 
 	if (locked)

Minchan Kim

Acked-by on v1 1/1

2012-10-08 06:46 UTC #34 lore raw

Re: [PATCH] mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix2

Quoted 9 lines · Mel Gorman

Thierry reported offline that the strict check "mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix1" check is still too strict because it's possible for more pages to be isolated than required. This patch corrects the check.
There are still CMA-related problems but they are "somewhere else" yet to be determined.
Signed-off-by Mel Gorman <[email protected]>

Acked-by Minchan Kim <[email protected]>

Signature · 8 lines

Kind regards,
Minchan Kim

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Minchan Kim

2012-10-08 06:49 UTC #35 lore raw

Re: [PATCH] mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix1

In reply to Mel Gorman

Quoted 9 lines · Mel Gorman

The following patch is still missing from linux-next/akpm so am resending in case it got lost in the mess.
CMA is reported to be broken in next-20120926. Minchan Kim pointed out that this was due to nr_scanned != total_isolated in the case of CMA because PageBuddy pages are one scan but many isolations in CMA. This patch should address the problem.

Quoted 4 lines

This patch is a fix for mm-compaction-acquire-the-zone-lock-as-late-as-possible-fix-2.patch
Signed-off-by Mel Gorman <[email protected]>

Andrew, please fold this into [1] and pick.
Mel, Thanks for seeing this problem while I enjoy holiday.

[1] mm: compaction: Iron out isolate_freepages_block() and isolate_freepages_range() -fix2

Signature · 8 lines

Kind regards,
Minchan Kim

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Mel Gorman

2012-10-04 14:03 UTC #36 lore raw

PATCH 1/1 mm: compaction: Cache if a pageblock was scanned and no pages were isolated -fix3

In reply to Minchan Kim

The following patch still has not been tested but I'm reposting it anyway. I've sent a rebased patch on top of next-20121004 that includes this patch privately to Thierry for testing.

CMA requires that the PG_migrate_skip hint be skipped but it was only skipping it when isolating pages for migration, not for free. Ensure cc->isolate_skip_hint gets passed in both cases.

This is a fix for mm-compaction-cache-if-a-pageblock-was-scanned-and-no-pages-were-isolated-fix.patch but is based on top of linux-next/akpm as of 20121004. It will cause minor conflicts when it is slotted into place but the resolutions should be straight-forward.

Signed-off-by Mel Gorman <[email protected]>

---
 mm/compaction.c |   16 ++++------------
 mm/internal.h   |    3 ++-
 mm/page_alloc.c |   43 ++++++++++++++++++++++---------------------
 3 files changed, 28 insertions(+), 34 deletions(-)

mm/compaction.c +4 ~~-12~~

index ed3b8f1..2c4ce17 100644
@@ -373,22 +373,14 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
  * a free page).
  */
 unsigned long
-isolate_freepages_range(unsigned long start_pfn, unsigned long end_pfn)
+isolate_freepages_range(struct compact_control *cc,
+			unsigned long start_pfn, unsigned long end_pfn)
 {
 	unsigned long isolated, pfn, block_end_pfn;
-	struct zone *zone = NULL;
 	LIST_HEAD(freelist);
 
-	/* cc needed for isolate_freepages_block to acquire zone->lock */
-	struct compact_control cc = {
-		.sync = true,
-	};
-
-	if (pfn_valid(start_pfn))
-		cc.zone = zone = page_zone(pfn_to_page(start_pfn));
-
 	for (pfn = start_pfn; pfn < end_pfn; pfn += isolated) {
-		if (!pfn_valid(pfn) || zone != page_zone(pfn_to_page(pfn)))
+		if (!pfn_valid(pfn) || cc->zone != page_zone(pfn_to_page(pfn)))
 			break;
 
 		/*

@@ -398,7 +390,7 @@ isolate_freepages_range(unsigned long start_pfn, unsigned long end_pfn)
 		block_end_pfn = ALIGN(pfn + 1, pageblock_nr_pages);
 		block_end_pfn = min(block_end_pfn, end_pfn);
 
-		isolated = isolate_freepages_block(&cc, pfn, block_end_pfn,
+		isolated = isolate_freepages_block(cc, pfn, block_end_pfn,
 						   &freelist, true);
 
 		/*

mm/internal.h +2 -1

index 9d5d276..a3ce781 100644
@@ -135,7 +135,8 @@ struct compact_control {
 };
 
 unsigned long
-isolate_freepages_range(unsigned long start_pfn, unsigned long end_pfn);
+isolate_freepages_range(struct compact_control *cc,
+			unsigned long start_pfn, unsigned long end_pfn);
 unsigned long
 isolate_migratepages_range(struct zone *zone, struct compact_control *cc,
 	unsigned long low_pfn, unsigned long end_pfn, bool unevictable);

mm/page_alloc.c +22 ~~-21~~

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