[[email protected]: RE: OOM Killer problem since linux 2.6.8.1]
FYI - yet another spurious OOM killer report.
----- Forwarded message from Barry Silverman <[email protected]> -----
From: Barry Silverman <[email protected]>
Date: Tue, 14 Sep 2004 20:56:05 -0400
To: 'Marcelo Tosatti' <[email protected]>
In-Reply-To: <[email protected]>
Subject: RE: OOM Killer problem since linux 2.6.8.1
Importance: Normal
X-MIMETrack: Itemize by SMTP Server on USMail/Cyclades(Release 6.5.1|January 21, 2004) at
09/14/2004 16:53:06
Yes, I installed 2.6.8.1 - patched in 2.6.9-rc1, and then 2.6.9-rc1-mm5...
It is easily reproducible - and takes no more than a couple of minutes to re-occur, so we should be able to trace it down....
-----Original Message-----
From: Marcelo Tosatti [mailto:[email protected]]
Sent: Tuesday, September 14, 2004 6:50 PM
To: Barry Silverman
Subject: Re: OOM Killer problem since linux 2.6.8.1
Hi Barry,
That was 2.6.9-rc1-mm5 correct?
I'll start looking into your problem tomorrow in more detail.
Quoted 13 lines · Barry Silverman
Done - Let me kow if you need to meter something else....Log is below:
Sep 14 20:16:18 dhcpaq kernel: oom-killer: gfp_mask=0x1d2 Sep 14 20:16:19 dhcpaq kernel: DMA per-cpu: Sep 14 20:16:19 dhcpaq kernel: cpu 0 hot: low 2, high 6, batch 1 Sep 14 20:16:19 dhcpaq kernel: cpu 0 cold: low 0, high 2, batch 1 Sep 14 20:16:19 dhcpaq kernel: Normal per-cpu: Sep 14 20:16:19 dhcpaq kernel: cpu 0 hot: low 12, high 36, batch 6 Sep 14 20:16:19 dhcpaq kernel: cpu 0 cold: low 0, high 12, batch 6 Sep 14 20:16:19 dhcpaq kernel: HighMem per-cpu: empty Sep 14 20:16:19 dhcpaq kernel: Sep 14 20:16:19 dhcpaq kernel: Free pages: 420kB (0kB HighMem) Sep 14 20:16:19 dhcpaq kernel: Active:27885 inactive:32 dirty:0
writeback:0
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unstable:0 free:105 slab:1027 mapped:27889 pagetables:177
Sep 14 20:16:19 dhcpaq kernel: DMA free:44kB min:44kB low:88kB
high:132kB
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active:12384kB inactive:32kB present:16384kB pages_scanned:0
all_unreclaimable? noSep 14 20:16:19 dhcpaq kernel: protections[]: 0 0 0 Sep 14 20:16:21 dhcpaq kernel: Normal free:376kB min:300kB low:600kBhigh:900kB active:99156kB inactive:96kB present:106496kB
pages_scanned:0
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all_unreclaimable? noSep 14 20:16:21 dhcpaq kernel: protections[]: 0 0 0 Sep 14 20:16:21 dhcpaq kernel: HighMem free:0kB min:128kB low:256kB high:384kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no Sep 14 20:16:21 dhcpaq kernel: protections[]: 0 0 0 Sep 14 20:16:21 dhcpaq kernel: DMA: 1*4kB 1*8kB 0*16kB 1*32kB 0*64kB
0*128kB
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0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 44kB
Sep 14 20:16:21 dhcpaq kernel: Normal: 20*4kB 3*8kB 1*16kB 0*32kB
0*64kB
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0*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 376kB
Sep 14 20:16:21 dhcpaq kernel: HighMem: empty Sep 14 20:16:21 dhcpaq kernel: nr_free_swap_pages: 96406 Sep 14 20:16:21 dhcpaq kernel: Swap cache: add 49668, delete 42859,
find
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20428/23905, race 0+1
Sep 14 20:16:21 dhcpaq kernel: Out of Memory: Killed process 1147
(bk).
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Barry Silverman Voice: 416-368-7677 x234
Disus Inc. Cell: 416-407-8091
47 Colborne #303 Fax: 416-368-4933
Toronto, Ontario
M5E 1P8, Canada email: [email protected]
PGP Key:
http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x4F5C9736
Quoted 10 lines
-----Original Message-----
From: Marcelo Tosatti [mailto:[email protected]]
Sent: Tuesday, September 14, 2004 3:12 PM
To: Barry Silverman
Subject: Re: OOM Killer problem since linux 2.6.8.1
Quoted 5 lines
Barry,
Can you please reproduce the OOM with the attached patch applied.
It will show us how many swap pages are available when tasks are
killed.
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Thanks
Quoted 4 lines · Barry Silverman
Thank you,
I found the necessary patch files, and applied them.I have tried running the rc1-mm5 kernel - and I continue to get the
OOMs
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when I do the following memory hungry command (for the linux
2.6.9-rc2
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repository):
"bk sccscat -h ChangeSet | bk check -acv -".
The bk consistency check seems to grow to a very large virtual size
170M, and I only have 120m physical memory. The swap space grew to
about
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96m out of a total 400m (I was using "top" to monitor)
Is there any kind of diagnostic patch that you want me to apply? The
bug
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happens every time I execute the command.
Below is the log entry for the OOM:
Sep 13 23:46:36 dhcpaq kernel: oom-killer: gfp_mask=0x1d2 Sep 13 23:46:36 dhcpaq kernel: DMA per-cpu: Sep 13 23:46:36 dhcpaq kernel: cpu 0 hot: low 2, high 6, batch 1 Sep 13 23:46:36 dhcpaq kernel: cpu 0 cold: low 0, high 2, batch 1 Sep 13 23:46:36 dhcpaq kernel: Normal per-cpu: Sep 13 23:46:36 dhcpaq kernel: cpu 0 hot: low 12, high 36, batch 6 Sep 13 23:46:36 dhcpaq kernel: cpu 0 cold: low 0, high 12, batch 6 Sep 13 23:46:36 dhcpaq kernel: HighMem per-cpu: empty Sep 13 23:46:36 dhcpaq kernel: Sep 13 23:46:36 dhcpaq kernel: Free pages: 348kB (0kB
HighMem)
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Sep 13 23:46:36 dhcpaq kernel: Active:26152 inactive:1691 dirty:0 writeback:0 unstable:0 free:87 slab:1092 mapped:27846 pagetables:183 Sep 13 23:46:36 dhcpaq kernel: DMA free:44kB min:44kB low:88kB high:132kB active:11308kB inactive:988kB present:16384kB Sep 13 23:46:36 dhcpaq kernel: protections[]: 0 0 0 Sep 13 23:46:38 dhcpaq kernel: Normal free:304kB min:300kB low:600kB
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high:900kB active:93300kB inactive:5776kB present:106496kB
Sep 13 23:46:38 dhcpaq kernel: protections[]: 0 0 0 Sep 13 23:46:38 dhcpaq kernel: HighMem free:0kB min:128kB low:256kB high:384kB active:0kB inactive:0kB present:0kB Sep 13 23:46:38 dhcpaq kernel: protections[]: 0 0 0 Sep 13 23:46:38 dhcpaq kernel: DMA: 1*4kB 1*8kB 0*16kB 1*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 44kB Sep 13 23:46:38 dhcpaq kernel: Normal: 6*4kB 1*8kB 1*16kB 0*32kB
0*64kB
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2*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 304kB
Sep 13 23:46:38 dhcpaq kernel: HighMem: empty Sep 13 23:46:38 dhcpaq kernel: Swap cache: add 185777, delete
179057,
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find 63414/76283, race 0+0
Sep 13 23:46:38 dhcpaq kernel: Out of Memory: Killed process 1311
(bk).
Quoted 9 lines
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-----Original Message-----
From: Marcelo Tosatti [mailto:[email protected]]
Sent: Monday, September 13, 2004 3:46 PM
To: Barry Silverman
Subject: Re: OOM Killer problem since linux 2.6.8.1Quoted 1 line · Barry Silverman
Which kernel is this patchset supposed to be applied against?
2.6.8.1
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or
Quoted 1 line
2.6.9-rc1? or can I get a full kernel with the patches applied
already
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from
Quoted 1 line
somewhere directly?
It applies on top of 2.6.9-rc1. I dont know where to find a tarball
of
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Quoted 2 lines
its
full source.
----- End forwarded message -----
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