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kernel BUG at /home/mafra/linux-2.6/fs/btrfs/volumes.c:2828!

DISCUSSION Carlos R. Mafra 2 participants 2 messages Apr 8, 2010 – Apr 9, 2010 Btrfs file system

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Carlos R. Mafra

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#0 lore raw

I've just got this bug in the latest 2.6.34-rc3-00388 kernel.

I wasn't doing anything fancy, just doing some 'git log' in a small wmaker repo I have here. After I got this bug the cpu went to 100% and I had to reboot with the button because the laptop was not responding to any commands (but the mouse was moving and X seemed ok)

I have the full dmesg (64 KB) which I can upload somewhere if needed. But for now I just would like to know if this bug is known to people in the list.

[ 8150.547096] ------------[ cut here ]------------
[ 8150.547101] kernel BUG at /home/mafra/linux-2.6/fs/btrfs/volumes.c:2828!
[ 8150.547103] invalid opcode: 0000 [#1] SMP
[ 8150.547107] last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
[ 8150.547109] CPU 1
[ 8150.547111] Modules linked in: ppp_deflate ppp_async ppp_generic slhc option usbserial snd_seq snd_seq_device uvcvideo snd_hda_codec_idt snd_hda_in                  tel iwlagn sky2 snd_hda_codec ehci_hcd snd_hwdep i2c_i801 evdev
[ 8150.547125]
[ 8150.547128] Pid: 1606, comm: btrfs-delalloc- Not tainted 2.6.34-rc3-00388-gf5284e7 #48 VAIO/VGN-FZ240E
[ 8150.547131] RIP: 0010:[<ffffffff811b39a9>]  [<ffffffff811b39a9>] btrfs_rmap_block+0x2c9/0x2d0
[ 8150.547139] RSP: 0018:ffff88007aeab7f0  EFLAGS: 00010246
[ 8150.547142] RAX: 0000000000000000 RBX: 0000000000010000 RCX: ffffffffffffffff
[ 8150.547144] RDX: 0000001e821d0000 RSI: 0000001e821d0000 RDI: ffff88007ef1fa28
[ 8150.547147] RBP: ffff88007aeab870 R08: 0000000000000000 R09: ffff88007aeab8a8
[ 8150.547149] R10: 0000000000000000 R11: ffff88005ae73580 R12: 0000000000000000
[ 8150.547151] R13: ffff88007ae9c0e8 R14: ffff88007aeab8ac R15: ffff88007aeab8a8
[ 8150.547154] FS:  0000000000000000(0000) GS:ffff880001b00000(0000) knlGS:0000000000000000
[ 8150.547157] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 8150.547159] CR2: 00007f4adf3d9000 CR3: 0000000001812000 CR4: 00000000000006e0
[ 8150.547161] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 8150.547164] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 8150.547166] Process btrfs-delalloc- (pid: 1606, threadinfo ffff88007aeaa000, task ffff88007f330280)
[ 8150.547168] Stack:
[ 8150.547170]  00000000000009b8 ffff880000000001 ffff88007acf7000 00ffffff811a0eb5
[ 8150.547173] <0> 0000000000000001 00002202400000cc ffff88007aeaa000 ffff88007aeab8a8
[ 8150.547178] <0> ffff88007aeab8a0 0000001e821d0000 ffff88007aeab860 ffff88007ae6fd80
[ 8150.547182] Call Trace:
[ 8150.547188]  [<ffffffff8117bdb1>] exclude_super_stripes+0x61/0x110
[ 8150.547193]  [<ffffffff8119dc30>] ? __tree_search+0x90/0x120
[ 8150.547196]  [<ffffffff8117c906>] btrfs_make_block_group+0x136/0x320
[ 8150.547200]  [<ffffffff811b6fd6>] __btrfs_alloc_chunk+0x616/0x740
[ 8150.547203]  [<ffffffff811b716f>] btrfs_alloc_chunk+0x6f/0xa0
[ 8150.547207]  [<ffffffff8117d546>] do_chunk_alloc+0x166/0x230
[ 8150.547210]  [<ffffffff8117f7d9>] find_free_extent+0x939/0x9f0
[ 8150.547214]  [<ffffffff8117fab5>] btrfs_reserve_extent+0xc5/0x1b0
[ 8150.547218]  [<ffffffff814f3559>] ? mutex_lock+0x19/0x50
[ 8150.547227]  [<ffffffff8119572d>] submit_compressed_extents+0x10d/0x3f0
[ 8150.547231]  [<ffffffff81195a8f>] async_cow_submit+0x7f/0x90
[ 8150.547234]  [<ffffffff811b80c6>] run_ordered_completions+0x76/0xe0
[ 8150.547237]  [<ffffffff811b898a>] worker_loop+0x15a/0x580
[ 8150.547240]  [<ffffffff811b8830>] ? worker_loop+0x0/0x580
[ 8150.547243]  [<ffffffff8105b6ce>] kthread+0x8e/0xa0
[ 8150.547248]  [<ffffffff81003ad4>] kernel_thread_helper+0x4/0x10
[ 8150.547250]  [<ffffffff8105b640>] ? kthread+0x0/0xa0
[ 8150.547259]  [<ffffffff81003ad0>] ? kernel_thread_helper+0x0/0x10
[ 8150.547261] Code: 00 00 48 c7 c7 68 ce 75 81 e8 34 ab e8 ff 4c 8b 5d 90 4c 8b 55 98 4c 8b 4d b0 48 8b 4d a0 48 8b 45 a8 e9 af fe ff ff 0f 0b eb fe                   <0f> 0b eb fe 0f 1f 00 55 48 89 e5 41 55 49 89 d5 41 54 49 89 f4
[ 8150.547292] RIP  [<ffffffff811b39a9>] btrfs_rmap_block+0x2c9/0x2d0
[ 8150.547296]  RSP <ffff88007aeab7f0>
[ 8150.547310] ---[ end trace 6c5e0e4f829c2aeb ]---
#1 lore raw

On Fri, Apr 9, 2010 at 6:23 AM, Carlos R. Mafra <[email protected]> wr= ote:

Quoted 3 lines

I've just got this bug in the latest 2.6.34-rc3-00388 kernel.

I wasn't doing anything fancy, just doing some 'git log' in a small w=

maker

Quoted 1 line

repo I have here. After I got this bug the cpu went to 100% and I had=

to

Quoted 1 line

reboot with the button because the laptop was not responding to any c=

ommands

Quoted 3 lines

(but the mouse was moving and X seemed ok)

I have the full dmesg (64 KB) which I can upload somewhere if needed.=

But

Quoted 1 line

for now I just would like to know if this bug is known to people in t=

he list.

Quoted 3 lines
[ 8150.547096] ------------[ cut here ]------------
[ 8150.547101] kernel BUG at /home/mafra/linux-2.6/fs/btrfs/volumes.c=

:2828!

Quoted 2 lines
[ 8150.547103] invalid opcode: 0000 [#1] SMP
[ 8150.547107] last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/=

scaling_cur_freq

Quoted 2 lines
[ 8150.547109] CPU 1
[ 8150.547111] Modules linked in: ppp_deflate ppp_async ppp_generic s=

lhc option usbserial snd_seq snd_seq_device uvcvideo snd_hda_codec_idt = snd_hda_in =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0tel iwlagn sky2 snd_hda_c= odec ehci_hcd snd_hwdep i2c_i801 evdev

Quoted 2 lines
[ 8150.547125]
[ 8150.547128] Pid: 1606, comm: btrfs-delalloc- Not tainted 2.6.34-rc=

3-00388-gf5284e7 #48 VAIO/VGN-FZ240E

Quoted 1 line
[ 8150.547131] RIP: 0010:[<ffffffff811b39a9>] =A0[<ffffffff811b39a9>]=

btrfs_rmap_block+0x2c9/0x2d0

Quoted 2 lines
[ 8150.547139] RSP: 0018:ffff88007aeab7f0 =A0EFLAGS: 00010246
[ 8150.547142] RAX: 0000000000000000 RBX: 0000000000010000 RCX: fffff=

fffffffffff

Quoted 1 line
[ 8150.547144] RDX: 0000001e821d0000 RSI: 0000001e821d0000 RDI: ffff8=

8007ef1fa28

Quoted 1 line
[ 8150.547147] RBP: ffff88007aeab870 R08: 0000000000000000 R09: ffff8=

8007aeab8a8

Quoted 1 line
[ 8150.547149] R10: 0000000000000000 R11: ffff88005ae73580 R12: 00000=

00000000000

Quoted 1 line
[ 8150.547151] R13: ffff88007ae9c0e8 R14: ffff88007aeab8ac R15: ffff8=

8007aeab8a8

Quoted 1 line
[ 8150.547154] FS: =A00000000000000000(0000) GS:ffff880001b00000(0000=

) knlGS:0000000000000000

Quoted 2 lines
[ 8150.547157] CS: =A00010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 8150.547159] CR2: 00007f4adf3d9000 CR3: 0000000001812000 CR4: 00000=

000000006e0

Quoted 1 line
[ 8150.547161] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 00000=

00000000000

Quoted 1 line
[ 8150.547164] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000=

00000000400

Quoted 1 line
[ 8150.547166] Process btrfs-delalloc- (pid: 1606, threadinfo ffff880=

07aeaa000, task ffff88007f330280)

Quoted 2 lines
[ 8150.547168] Stack:
[ 8150.547170] =A000000000000009b8 ffff880000000001 ffff88007acf7000 =

00ffffff811a0eb5

Quoted 1 line
[ 8150.547173] <0> 0000000000000001 00002202400000cc ffff88007aeaa000=

ffff88007aeab8a8

Quoted 1 line
[ 8150.547178] <0> ffff88007aeab8a0 0000001e821d0000 ffff88007aeab860=

ffff88007ae6fd80

Quoted 2 lines
[ 8150.547182] Call Trace:
[ 8150.547188] =A0[<ffffffff8117bdb1>] exclude_super_stripes+0x61/0x1=

10

Quoted 2 lines
[ 8150.547193] =A0[<ffffffff8119dc30>] ? __tree_search+0x90/0x120
[ 8150.547196] =A0[<ffffffff8117c906>] btrfs_make_block_group+0x136/0=

x320

Quoted 1 line
[ 8150.547200] =A0[<ffffffff811b6fd6>] __btrfs_alloc_chunk+0x616/0x74=

0

Quoted 4 lines
[ 8150.547203] =A0[<ffffffff811b716f>] btrfs_alloc_chunk+0x6f/0xa0
[ 8150.547207] =A0[<ffffffff8117d546>] do_chunk_alloc+0x166/0x230
[ 8150.547210] =A0[<ffffffff8117f7d9>] find_free_extent+0x939/0x9f0
[ 8150.547214] =A0[<ffffffff8117fab5>] btrfs_reserve_extent+0xc5/0x1b=

0

Quoted 2 lines
[ 8150.547218] =A0[<ffffffff814f3559>] ? mutex_lock+0x19/0x50
[ 8150.547227] =A0[<ffffffff8119572d>] submit_compressed_extents+0x10=

d/0x3f0

Quoted 2 lines
[ 8150.547231] =A0[<ffffffff81195a8f>] async_cow_submit+0x7f/0x90
[ 8150.547234] =A0[<ffffffff811b80c6>] run_ordered_completions+0x76/0=

xe0

Quoted 6 lines
[ 8150.547237] =A0[<ffffffff811b898a>] worker_loop+0x15a/0x580
[ 8150.547240] =A0[<ffffffff811b8830>] ? worker_loop+0x0/0x580
[ 8150.547243] =A0[<ffffffff8105b6ce>] kthread+0x8e/0xa0
[ 8150.547248] =A0[<ffffffff81003ad4>] kernel_thread_helper+0x4/0x10
[ 8150.547250] =A0[<ffffffff8105b640>] ? kthread+0x0/0xa0
[ 8150.547259] =A0[<ffffffff81003ad0>] ? kernel_thread_helper+0x0/0x1=

0

Quoted 1 line
[ 8150.547261] Code: 00 00 48 c7 c7 68 ce 75 81 e8 34 ab e8 ff 4c 8b =

5d 90 4c 8b 55 98 4c 8b 4d b0 48 8b 4d a0 48 8b 45 a8 e9 af fe ff ff 0f=
0b eb fe =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 <0f> 0b eb fe 0f 1f 00 55= 48 89 e5 41 55 49 89 d5 41 54 49 89 f4

Quoted 1 line
[ 8150.547292] RIP =A0[<ffffffff811b39a9>] btrfs_rmap_block+0x2c9/0x2=

d0

Quoted 2 lines
[ 8150.547296] =A0RSP <ffff88007aeab7f0>
[ 8150.547310] ---[ end trace 6c5e0e4f829c2aeb ]---

This has been fixed by commit
http://git.kernel.org/?p=3Dlinux/kernel/git/mason/btrfs-unstable.git;a=3D=
commit;h=3D9f680ce04ea19dabbbafe01b57b61930a9b70741

Yan, Zheng
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