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Regression in 2.6.35 RC1 (Ubuntu 2.6.35-1-generic)

DISCUSSION Brad Figg 3 participants 4 messages Jun 11, 2010 Btrfs file system

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Brad Figg

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I'm seeing the following in /var/log/messages. The system is not under any particular load. The system has my /home as a btrfs partition. The system has GDM up and I've logged in via ssh.

Jun 10 21:22:43 bradf-x301 kernel: [  175.563934] CPU 1
Jun 10 21:22:43 bradf-x301 kernel: [  175.563937] Modules linked in: cryptd aes_x86_64 aes_generic rfcomm binfmt_misc sco ppdev bridge stp bnep l2cap dm_crypt snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm thinkpad_acpi snd_seq_midi snd_rawmidi snd_seq_midi_event arc4 snd_seq snd_timer snd_seq_device uvcvideo lp iwlagn videodev parport iwlcore btusb mac80211 v4l1_compat snd cfg80211 bluetooth joydev soundcore v4l2_compat_ioctl32 psmouse tpm_tis tpm serio_raw tpm_bios led_class nvram snd_page_alloc btrfs zlib_deflate crc32c libcrc32c vga16fb vgastate usbhid hid i915 drm_kms_helper drm ahci i2c_algo_bit video e1000e output libahci intel_agp
Jun 10 21:22:43 bradf-x301 kernel: [  175.564051]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564059] Pid: 936, comm: btrfs-endio-wri Tainted: G        W   2.6.35-1-generic #1-Ubuntu 2777MSU/2777MSU
Jun 10 21:22:43 bradf-x301 kernel: [  175.564066] RIP: 0010:[<ffffffffa015916b>]  [<ffffffffa015916b>] btrfs_free_tree_block+0x3bb/0x3e0 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564102] RSP: 0018:ffff8801282638f0  EFLAGS: 00010287
Jun 10 21:22:43 bradf-x301 kernel: [  175.564108] RAX: ffff8801326c5b00 RBX: ffff88013279e800 RCX: ffff8801326c5300
Jun 10 21:22:43 bradf-x301 kernel: [  175.564114] RDX: 0000000181ffffff RSI: 0000000140000000 RDI: ffff8801304dc070
Jun 10 21:22:43 bradf-x301 kernel: [  175.564121] RBP: ffff880128263940 R08: 0000000000000000 R09: 0000000000000007
Jun 10 21:22:43 bradf-x301 kernel: [  175.564126] R10: 0000000000000001 R11: 0000000000000000 R12: ffff880123dba7e0
Jun 10 21:22:43 bradf-x301 kernel: [  175.564132] R13: ffff8801304dc128 R14: ffff880123dbd000 R15: ffff8801326c5300
Jun 10 21:22:43 bradf-x301 kernel: [  175.564139] FS:  0000000000000000(0000) GS:ffff880001e80000(0000) knlGS:0000000000000000
Jun 10 21:22:43 bradf-x301 kernel: [  175.564146] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Jun 10 21:22:43 bradf-x301 kernel: [  175.564152] CR2: 00007f1a263e4e40 CR3: 0000000001a2a000 CR4: 00000000000006e0
Jun 10 21:22:43 bradf-x301 kernel: [  175.564158] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jun 10 21:22:43 bradf-x301 kernel: [  175.564164] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jun 10 21:22:43 bradf-x301 kernel: [  175.564171] Process btrfs-endio-wri (pid: 936, threadinfo ffff880128262000, task ffff880128635b40)
Jun 10 21:22:43 bradf-x301 kernel: [  175.564179]  ffff880100000002 0000000000000000 ffff880130b301b8 000000000000b242
Jun 10 21:22:43 bradf-x301 kernel: [  175.564189] <0> ffff880128263940 ffff88013081c630 ffff880123dba900 ffff88013279e800
Jun 10 21:22:43 bradf-x301 kernel: [  175.564199] <0> ffff880123dba7e0 ffff880123dbd000 ffff8801282639f0 ffffffffa014992b
Jun 10 21:22:43 bradf-x301 kernel: [  175.564234]  [<ffffffffa014992b>] __btrfs_cow_block+0x3bb/0x620 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564257]  [<ffffffffa0149c97>] btrfs_cow_block+0x107/0x1f0 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564280]  [<ffffffffa015086e>] btrfs_search_slot+0x37e/0x6b0 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564308]  [<ffffffffa016104d>] btrfs_lookup_csum+0x6d/0x160 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564321]  [<ffffffff81140915>] ? kmem_cache_alloc+0xe5/0x140
Jun 10 21:22:43 bradf-x301 kernel: [  175.564347]  [<ffffffffa0161d29>] btrfs_csum_file_blocks+0xd9/0x850 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564380]  [<ffffffffa0186b9e>] ? merge_state+0x7e/0x150 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564411]  [<ffffffffa0186317>] ? free_extent_state+0x37/0x60 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564442]  [<ffffffffa016b4b9>] add_pending_csums+0x49/0x70 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564471]  [<ffffffffa016d7f3>] btrfs_finish_ordered_io+0x1a3/0x2a0 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564482]  [<ffffffff81108aed>] ? test_clear_page_writeback+0x8d/0x150
Jun 10 21:22:43 bradf-x301 kernel: [  175.564512]  [<ffffffffa016d90a>] btrfs_writepage_end_io_hook+0x1a/0x20 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564542]  [<ffffffffa018822b>] end_bio_extent_writepage+0x13b/0x180 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564553]  [<ffffffff8158235d>] ? schedule_timeout+0x19d/0x310
Jun 10 21:22:43 bradf-x301 kernel: [  175.564564]  [<ffffffff8106e1d0>] ? process_timeout+0x0/0x10
Jun 10 21:22:43 bradf-x301 kernel: [  175.564573]  [<ffffffff8117da1d>] bio_endio+0x1d/0x40
Jun 10 21:22:43 bradf-x301 kernel: [  175.564601]  [<ffffffffa01641ec>] end_workqueue_fn+0xfc/0x130 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564629]  [<ffffffffa01942cc>] worker_loop+0x15c/0x4c0 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564657]  [<ffffffffa0194170>] ? worker_loop+0x0/0x4c0 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564668]  [<ffffffff8107d0b6>] kthread+0x96/0xa0
Jun 10 21:22:43 bradf-x301 kernel: [  175.564677]  [<ffffffff8100aee4>] kernel_thread_helper+0x4/0x10
Jun 10 21:22:43 bradf-x301 kernel: [  175.564686]  [<ffffffff8107d020>] ? kthread+0x0/0xa0
Jun 10 21:22:43 bradf-x301 kernel: [  175.564693]  [<ffffffff8100aee0>] ? kernel_thread_helper+0x0/0x10
Jun 10 21:22:43 bradf-x301 kernel: [  175.564809]  RSP <ffff8801282638f0>
Jun 10 21:22:43 bradf-x301 kernel: [  175.564816] ---[ end trace 32d3e1002acaefc4 ]---
Jun 10 21:23:17 bradf-x301 kernel: [  209.857602] CPU 1
Jun 10 21:23:17 bradf-x301 kernel: [  209.857605] Modules linked in: cryptd aes_x86_64 aes_generic rfcomm binfmt_misc sco ppdev bridge stp bnep l2cap dm_crypt snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm thinkpad_acpi snd_seq_midi snd_rawmidi snd_seq_midi_event arc4 snd_seq snd_timer snd_seq_device uvcvideo lp iwlagn videodev parport iwlcore btusb mac80211 v4l1_compat snd cfg80211 bluetooth joydev soundcore v4l2_compat_ioctl32 psmouse tpm_tis tpm serio_raw tpm_bios led_class nvram snd_page_alloc btrfs zlib_deflate crc32c libcrc32c vga16fb vgastate usbhid hid i915 drm_kms_helper drm ahci i2c_algo_bit video e1000e output libahci intel_agp
Jun 10 21:23:17 bradf-x301 kernel: [  209.857719]
Jun 10 21:23:17 bradf-x301 kernel: [  209.857726] Pid: 946, comm: btrfs-transacti Tainted: G      D W   2.6.35-1-generic #1-Ubuntu 2777MSU/2777MSU
Jun 10 21:23:17 bradf-x301 kernel: [  209.857733] RIP: 0010:[<ffffffffa015916b>]  [<ffffffffa015916b>] btrfs_free_tree_block+0x3bb/0x3e0 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.857767] RSP: 0018:ffff88012821b820  EFLAGS: 00010287
Jun 10 21:23:17 bradf-x301 kernel: [  209.857772] RAX: ffff8801326c5b00 RBX: ffff88013279a000 RCX: ffff8801326c5300
Jun 10 21:23:17 bradf-x301 kernel: [  209.857778] RDX: 0000000181ffffff RSI: 0000000140000000 RDI: ffff8801304dc070
Jun 10 21:23:17 bradf-x301 kernel: [  209.857784] RBP: ffff88012821b870 R08: 0000000000000000 R09: 0000000000000002
Jun 10 21:23:17 bradf-x301 kernel: [  209.857790] R10: 0000000000000001 R11: 0000000000000000 R12: ffff880130ab0510
Jun 10 21:23:17 bradf-x301 kernel: [  209.857796] R13: ffff8801304dc128 R14: ffff880123dbd040 R15: ffff8801326c5300
Jun 10 21:23:17 bradf-x301 kernel: [  209.857803] FS:  0000000000000000(0000) GS:ffff880001e80000(0000) knlGS:0000000000000000
Jun 10 21:23:17 bradf-x301 kernel: [  209.857810] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Jun 10 21:23:17 bradf-x301 kernel: [  209.857815] CR2: 0000000001be6028 CR3: 0000000001a2a000 CR4: 00000000000006e0
Jun 10 21:23:17 bradf-x301 kernel: [  209.857821] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jun 10 21:23:17 bradf-x301 kernel: [  209.857827] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jun 10 21:23:17 bradf-x301 kernel: [  209.857834] Process btrfs-transacti (pid: 946, threadinfo ffff88012821a000, task ffff880128660000)
Jun 10 21:23:17 bradf-x301 kernel: [  209.857843]  ffff880100000002 0000000000000000 ffff880130b301b8 000000000000b242
Jun 10 21:23:17 bradf-x301 kernel: [  209.857852] <0> ffff88012821b870 ffff880130ab0cf0 ffff880130b6a000 ffff88013279a000
Jun 10 21:23:17 bradf-x301 kernel: [  209.857862] <0> ffff880130ab0510 ffff880123dbd040 ffff88012821b920 ffffffffa014992b
Jun 10 21:23:17 bradf-x301 kernel: [  209.857898]  [<ffffffffa014992b>] __btrfs_cow_block+0x3bb/0x620 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.857920]  [<ffffffffa0149c97>] btrfs_cow_block+0x107/0x1f0 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.857943]  [<ffffffffa015086e>] btrfs_search_slot+0x37e/0x6b0 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.857969]  [<ffffffffa0157cfc>] lookup_inline_extent_backref+0xbc/0x400 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.857982]  [<ffffffff81140915>] ? kmem_cache_alloc+0xe5/0x140
Jun 10 21:23:17 bradf-x301 kernel: [  209.858006]  [<ffffffffa01583f6>] __btrfs_free_extent+0xd6/0x710 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858031]  [<ffffffffa0158b8a>] run_delayed_tree_ref+0x15a/0x160 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858055]  [<ffffffffa0158d8a>] run_one_delayed_ref+0x9a/0xc0 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858080]  [<ffffffffa015b3a0>] run_clustered_refs+0xc0/0x220 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858090]  [<ffffffff8104ff7a>] ? finish_task_switch+0x4a/0xd0
Jun 10 21:23:17 bradf-x301 kernel: [  209.858115]  [<ffffffffa015b5ca>] btrfs_run_delayed_refs+0xca/0x220 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858127]  [<ffffffff81582a9e>] ? mutex_lock+0x1e/0x50
Jun 10 21:23:17 bradf-x301 kernel: [  209.858159]  [<ffffffffa0185a0e>] ? btrfs_run_ordered_operations+0x1ee/0x210 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858189]  [<ffffffffa01694e0>] btrfs_commit_transaction+0x80/0x710 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858198]  [<ffffffff81582a9e>] ? mutex_lock+0x1e/0x50
Jun 10 21:23:17 bradf-x301 kernel: [  209.858227]  [<ffffffffa0169f8b>] ? start_transaction+0x1ab/0x230 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858238]  [<ffffffff8107d610>] ? autoremove_wake_function+0x0/0x40
Jun 10 21:23:17 bradf-x301 kernel: [  209.858265]  [<ffffffffa0163d53>] transaction_kthread+0x283/0x290 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858293]  [<ffffffffa0163ad0>] ? transaction_kthread+0x0/0x290 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858302]  [<ffffffff8107d0b6>] kthread+0x96/0xa0
Jun 10 21:23:17 bradf-x301 kernel: [  209.858311]  [<ffffffff8100aee4>] kernel_thread_helper+0x4/0x10
Jun 10 21:23:17 bradf-x301 kernel: [  209.858320]  [<ffffffff8107d020>] ? kthread+0x0/0xa0
Jun 10 21:23:17 bradf-x301 kernel: [  209.858327]  [<ffffffff8100aee0>] ? kernel_thread_helper+0x0/0x10
Jun 10 21:23:17 bradf-x301 kernel: [  209.858441]  RSP <ffff88012821b820>
Jun 10 21:23:17 bradf-x301 kernel: [  209.858448] ---[ end trace 32d3e1002acaefc5 ]---

Brad

Signature · 1 line
Brad Figg [email protected] http://www.canonical.com
#1 lore raw

On Fri, Jun 11, 2010 at 12:54 PM, Brad Figg <[email protected]> w= rote:

Quoted 1 line

I'm seeing the following in /var/log/messages. The system is not unde=

r

Quoted 1 line

any particular load. The system has my /home as a btrfs partition. Th=

e

Quoted 5 lines

system has GDM up and I've logged in via ssh.

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.563934] CPU 1
Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.563937] Modules linked in=

: cryptd

Quoted 1 line

aes_x86_64 aes_generic rfcomm binfmt_misc sco ppdev bridge stp bnep l=

2cap

Quoted 2 lines

dm_crypt snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm thinkpad_acpi snd_seq_midi snd_rawmidi snd_seq_midi_event arc=

4

Quoted 1 line

snd_seq snd_timer snd_seq_device uvcvideo lp iwlagn videodev parport =

iwlcore

Quoted 2 lines

btusb mac80211 v4l1_compat snd cfg80211 bluetooth joydev soundcore v4l2_compat_ioctl32 psmouse tpm_tis tpm serio_raw tpm_bios led_class =

nvram

Quoted 1 line

snd_page_alloc btrfs zlib_deflate crc32c libcrc32c vga16fb vgastate u=

sbhid

Quoted 1 line

hid i915 drm_kms_helper drm ahci i2c_algo_bit video e1000e output lib=

ahci

Quoted 4 lines

intel_agp

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564051]
Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564059] Pid: 936, comm:

btrfs-endio-wri Tainted: G =A0 =A0 =A0 =A0W =A0 2.6.35-1-generic #1-U=

buntu

Quoted 5 lines

2777MSU/2777MSU

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564066] RIP:
0010:[<ffffffffa015916b>] =A0[<ffffffffa015916b>]
btrfs_free_tree_block+0x3bb/0x3e0 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564102] RSP: 0018:ffff880=

1282638f0

Quoted 2 lines

=A0EFLAGS: 00010287

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564108] RAX: ffff8801326c=

5b00 RBX:

Quoted 2 lines

ffff88013279e800 RCX: ffff8801326c5300

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564114] RDX: 0000000181ff=

ffff RSI:

Quoted 2 lines

0000000140000000 RDI: ffff8801304dc070

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564121] RBP: ffff88012826=

3940 R08:

Quoted 2 lines

0000000000000000 R09: 0000000000000007

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564126] R10: 000000000000=

0001 R11:

Quoted 2 lines

0000000000000000 R12: ffff880123dba7e0

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564132] R13: ffff8801304d=

c128 R14:

Quoted 3 lines

ffff880123dbd000 R15: ffff8801326c5300

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564139] FS:

=A00000000000000000(0000) GS:ffff880001e80000(0000) knlGS:00000000000=

00000

Quoted 1 line
Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564146] CS: =A00010 DS: 0=

000 ES:

Quoted 2 lines

0000 CR0: 000000008005003b

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564152] CR2: 00007f1a263e=

4e40 CR3:

Quoted 2 lines

0000000001a2a000 CR4: 00000000000006e0

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564158] DR0: 000000000000=

0000 DR1:

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0000000000000000 DR2: 0000000000000000

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564164] DR3: 000000000000=

0000 DR6:

Quoted 2 lines

00000000ffff0ff0 DR7: 0000000000000400

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564171] Process btrfs-end=

io-wri

Quoted 2 lines

(pid: 936, threadinfo ffff880128262000, task ffff880128635b40)

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564179] =A0ffff8801000000=

02

Quoted 2 lines

0000000000000000 ffff880130b301b8 000000000000b242

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564189] <0> ffff880128263=

940

Quoted 2 lines

ffff88013081c630 ffff880123dba900 ffff88013279e800

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564199] <0> ffff880123dba=

7e0

Quoted 2 lines

ffff880123dbd000 ffff8801282639f0 ffffffffa014992b

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564234] =A0[<ffffffffa014=

992b>]

Quoted 2 lines

__btrfs_cow_block+0x3bb/0x620 [btrfs]

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564257] =A0[<ffffffffa014=

9c97>]

Quoted 2 lines

btrfs_cow_block+0x107/0x1f0 [btrfs]

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564280] =A0[<ffffffffa015=

086e>]

Quoted 2 lines

btrfs_search_slot+0x37e/0x6b0 [btrfs]

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564308] =A0[<ffffffffa016=

104d>]

Quoted 2 lines

btrfs_lookup_csum+0x6d/0x160 [btrfs]

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564321] =A0[<ffffffff8114=

0915>] ?

Quoted 2 lines

kmem_cache_alloc+0xe5/0x140

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564347] =A0[<ffffffffa016=

1d29>]

Quoted 2 lines

btrfs_csum_file_blocks+0xd9/0x850 [btrfs]

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564380] =A0[<ffffffffa018=

6b9e>] ?

Quoted 2 lines

merge_state+0x7e/0x150 [btrfs]

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564411] =A0[<ffffffffa018=

6317>] ?

Quoted 2 lines

free_extent_state+0x37/0x60 [btrfs]

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564442] =A0[<ffffffffa016=

b4b9>]

Quoted 2 lines

add_pending_csums+0x49/0x70 [btrfs]

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564471] =A0[<ffffffffa016=

d7f3>]

Quoted 2 lines

btrfs_finish_ordered_io+0x1a3/0x2a0 [btrfs]

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564482] =A0[<ffffffff8110=

8aed>] ?

Quoted 2 lines

test_clear_page_writeback+0x8d/0x150

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564512] =A0[<ffffffffa016=

d90a>]

Quoted 2 lines

btrfs_writepage_end_io_hook+0x1a/0x20 [btrfs]

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564542] =A0[<ffffffffa018=

822b>]

Quoted 2 lines

end_bio_extent_writepage+0x13b/0x180 [btrfs]

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564553] =A0[<ffffffff8158=

235d>] ?

Quoted 2 lines

schedule_timeout+0x19d/0x310

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564564] =A0[<ffffffff8106=

e1d0>] ?

Quoted 2 lines

process_timeout+0x0/0x10

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564573] =A0[<ffffffff8117=

da1d>]

Quoted 2 lines

bio_endio+0x1d/0x40

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564601] =A0[<ffffffffa016=

41ec>]

Quoted 2 lines

end_workqueue_fn+0xfc/0x130 [btrfs]

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564629] =A0[<ffffffffa019=

42cc>]

Quoted 2 lines

worker_loop+0x15c/0x4c0 [btrfs]

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564657] =A0[<ffffffffa019=

4170>] ?

Quoted 2 lines

worker_loop+0x0/0x4c0 [btrfs]

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564668] =A0[<ffffffff8107=

d0b6>]

Quoted 2 lines

kthread+0x96/0xa0

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564677] =A0[<ffffffff8100=

aee4>]

Quoted 2 lines

kernel_thread_helper+0x4/0x10

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564686] =A0[<ffffffff8107=

d020>] ?

Quoted 2 lines

kthread+0x0/0xa0

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564693] =A0[<ffffffff8100=

aee0>] ?

Quoted 2 lines

kernel_thread_helper+0x0/0x10

Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564809] =A0RSP <ffff88012=

82638f0>

Quoted 5 lines
Jun 10 21:22:43 bradf-x301 kernel: [ =A0175.564816] ---[ end trace

32d3e1002acaefc4 ]---

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857602] CPU 1
Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857605] Modules linked in=

: cryptd

Quoted 1 line

aes_x86_64 aes_generic rfcomm binfmt_misc sco ppdev bridge stp bnep l=

2cap

Quoted 2 lines

dm_crypt snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm thinkpad_acpi snd_seq_midi snd_rawmidi snd_seq_midi_event arc=

4

Quoted 1 line

snd_seq snd_timer snd_seq_device uvcvideo lp iwlagn videodev parport =

iwlcore

Quoted 2 lines

btusb mac80211 v4l1_compat snd cfg80211 bluetooth joydev soundcore v4l2_compat_ioctl32 psmouse tpm_tis tpm serio_raw tpm_bios led_class =

nvram

Quoted 1 line

snd_page_alloc btrfs zlib_deflate crc32c libcrc32c vga16fb vgastate u=

sbhid

Quoted 1 line

hid i915 drm_kms_helper drm ahci i2c_algo_bit video e1000e output lib=

ahci

Quoted 4 lines

intel_agp

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857719]
Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857726] Pid: 946, comm:

btrfs-transacti Tainted: G =A0 =A0 =A0D W =A0 2.6.35-1-generic #1-Ubu=

ntu

Quoted 5 lines

2777MSU/2777MSU

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857733] RIP:
0010:[<ffffffffa015916b>] =A0[<ffffffffa015916b>]
btrfs_free_tree_block+0x3bb/0x3e0 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857767] RSP: 0018:ffff880=

12821b820

Quoted 2 lines

=A0EFLAGS: 00010287

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857772] RAX: ffff8801326c=

5b00 RBX:

Quoted 2 lines

ffff88013279a000 RCX: ffff8801326c5300

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857778] RDX: 0000000181ff=

ffff RSI:

Quoted 2 lines

0000000140000000 RDI: ffff8801304dc070

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857784] RBP: ffff88012821=

b870 R08:

Quoted 2 lines

0000000000000000 R09: 0000000000000002

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857790] R10: 000000000000=

0001 R11:

Quoted 2 lines

0000000000000000 R12: ffff880130ab0510

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857796] R13: ffff8801304d=

c128 R14:

Quoted 3 lines

ffff880123dbd040 R15: ffff8801326c5300

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857803] FS:

=A00000000000000000(0000) GS:ffff880001e80000(0000) knlGS:00000000000=

00000

Quoted 1 line
Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857810] CS: =A00010 DS: 0=

000 ES:

Quoted 2 lines

0000 CR0: 000000008005003b

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857815] CR2: 0000000001be=

6028 CR3:

Quoted 2 lines

0000000001a2a000 CR4: 00000000000006e0

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857821] DR0: 000000000000=

0000 DR1:

Quoted 2 lines

0000000000000000 DR2: 0000000000000000

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857827] DR3: 000000000000=

0000 DR6:

Quoted 2 lines

00000000ffff0ff0 DR7: 0000000000000400

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857834] Process btrfs-tra=

nsacti

Quoted 2 lines

(pid: 946, threadinfo ffff88012821a000, task ffff880128660000)

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857843] =A0ffff8801000000=

02

Quoted 2 lines

0000000000000000 ffff880130b301b8 000000000000b242

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857852] <0> ffff88012821b=

870

Quoted 2 lines

ffff880130ab0cf0 ffff880130b6a000 ffff88013279a000

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857862] <0> ffff880130ab0=

510

Quoted 2 lines

ffff880123dbd040 ffff88012821b920 ffffffffa014992b

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857898] =A0[<ffffffffa014=

992b>]

Quoted 2 lines

__btrfs_cow_block+0x3bb/0x620 [btrfs]

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857920] =A0[<ffffffffa014=

9c97>]

Quoted 2 lines

btrfs_cow_block+0x107/0x1f0 [btrfs]

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857943] =A0[<ffffffffa015=

086e>]

Quoted 2 lines

btrfs_search_slot+0x37e/0x6b0 [btrfs]

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857969] =A0[<ffffffffa015=

7cfc>]

Quoted 2 lines

lookup_inline_extent_backref+0xbc/0x400 [btrfs]

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.857982] =A0[<ffffffff8114=

0915>] ?

Quoted 2 lines

kmem_cache_alloc+0xe5/0x140

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858006] =A0[<ffffffffa015=

83f6>]

Quoted 2 lines

__btrfs_free_extent+0xd6/0x710 [btrfs]

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858031] =A0[<ffffffffa015=

8b8a>]

Quoted 2 lines

run_delayed_tree_ref+0x15a/0x160 [btrfs]

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858055] =A0[<ffffffffa015=

8d8a>]

Quoted 2 lines

run_one_delayed_ref+0x9a/0xc0 [btrfs]

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858080] =A0[<ffffffffa015=

b3a0>]

Quoted 2 lines

run_clustered_refs+0xc0/0x220 [btrfs]

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858090] =A0[<ffffffff8104=

ff7a>] ?

Quoted 2 lines

finish_task_switch+0x4a/0xd0

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858115] =A0[<ffffffffa015=

b5ca>]

Quoted 2 lines

btrfs_run_delayed_refs+0xca/0x220 [btrfs]

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858127] =A0[<ffffffff8158=

2a9e>] ?

Quoted 2 lines

mutex_lock+0x1e/0x50

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858159] =A0[<ffffffffa018=

5a0e>] ?

Quoted 2 lines

btrfs_run_ordered_operations+0x1ee/0x210 [btrfs]

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858189] =A0[<ffffffffa016=

94e0>]

Quoted 2 lines

btrfs_commit_transaction+0x80/0x710 [btrfs]

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858198] =A0[<ffffffff8158=

2a9e>] ?

Quoted 2 lines

mutex_lock+0x1e/0x50

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858227] =A0[<ffffffffa016=

9f8b>] ?

Quoted 2 lines

start_transaction+0x1ab/0x230 [btrfs]

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858238] =A0[<ffffffff8107=

d610>] ?

Quoted 2 lines

autoremove_wake_function+0x0/0x40

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858265] =A0[<ffffffffa016=

3d53>]

Quoted 2 lines

transaction_kthread+0x283/0x290 [btrfs]

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858293] =A0[<ffffffffa016=

3ad0>] ?

Quoted 2 lines

transaction_kthread+0x0/0x290 [btrfs]

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858302] =A0[<ffffffff8107=

d0b6>]

Quoted 2 lines

kthread+0x96/0xa0

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858311] =A0[<ffffffff8100=

aee4>]

Quoted 2 lines

kernel_thread_helper+0x4/0x10

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858320] =A0[<ffffffff8107=

d020>] ?

Quoted 2 lines

kthread+0x0/0xa0

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858327] =A0[<ffffffff8100=

aee0>] ?

Quoted 2 lines

kernel_thread_helper+0x0/0x10

Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858441] =A0RSP <ffff88012=

821b820>

Quoted 3 lines
Jun 10 21:23:17 bradf-x301 kernel: [ =A0209.858448] ---[ end trace

32d3e1002acaefc5 ]---

I have already sent a patch for this.
http://www.spinics.net/lists/linux-btrfs/msg05150.html

Yan, Zheng
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author
#2 lore raw
Quoted 203 lines · Zheng
Quoted 199 lines · Brad Figg

I'm seeing the following in /var/log/messages. The system is not under any particular load. The system has my /home as a btrfs partition. The system has GDM up and I've logged in via ssh.

Jun 10 21:22:43 bradf-x301 kernel: [  175.563934] CPU 1
Jun 10 21:22:43 bradf-x301 kernel: [  175.563937] Modules linked in: cryptd

aes_x86_64 aes_generic rfcomm binfmt_misc sco ppdev bridge stp bnep l2cap dm_crypt snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm thinkpad_acpi snd_seq_midi snd_rawmidi snd_seq_midi_event arc4 snd_seq snd_timer snd_seq_device uvcvideo lp iwlagn videodev parport iwlcore btusb mac80211 v4l1_compat snd cfg80211 bluetooth joydev soundcore v4l2_compat_ioctl32 psmouse tpm_tis tpm serio_raw tpm_bios led_class nvram snd_page_alloc btrfs zlib_deflate crc32c libcrc32c vga16fb vgastate usbhid hid i915 drm_kms_helper drm ahci i2c_algo_bit video e1000e output libahci intel_agp

Jun 10 21:22:43 bradf-x301 kernel: [  175.564051]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564059] Pid: 936, comm:
btrfs-endio-wri Tainted: G        W   2.6.35-1-generic #1-Ubuntu
2777MSU/2777MSU
Jun 10 21:22:43 bradf-x301 kernel: [  175.564066] RIP:
0010:[<ffffffffa015916b>]  [<ffffffffa015916b>]
btrfs_free_tree_block+0x3bb/0x3e0 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564102] RSP: 0018:ffff8801282638f0
  EFLAGS: 00010287
Jun 10 21:22:43 bradf-x301 kernel: [  175.564108] RAX: ffff8801326c5b00 RBX:
ffff88013279e800 RCX: ffff8801326c5300
Jun 10 21:22:43 bradf-x301 kernel: [  175.564114] RDX: 0000000181ffffff RSI:
0000000140000000 RDI: ffff8801304dc070
Jun 10 21:22:43 bradf-x301 kernel: [  175.564121] RBP: ffff880128263940 R08:
0000000000000000 R09: 0000000000000007
Jun 10 21:22:43 bradf-x301 kernel: [  175.564126] R10: 0000000000000001 R11:
0000000000000000 R12: ffff880123dba7e0
Jun 10 21:22:43 bradf-x301 kernel: [  175.564132] R13: ffff8801304dc128 R14:
ffff880123dbd000 R15: ffff8801326c5300
Jun 10 21:22:43 bradf-x301 kernel: [  175.564139] FS:
  0000000000000000(0000) GS:ffff880001e80000(0000) knlGS:0000000000000000
Jun 10 21:22:43 bradf-x301 kernel: [  175.564146] CS:  0010 DS: 0000 ES:
0000 CR0: 000000008005003b
Jun 10 21:22:43 bradf-x301 kernel: [  175.564152] CR2: 00007f1a263e4e40 CR3:
0000000001a2a000 CR4: 00000000000006e0
Jun 10 21:22:43 bradf-x301 kernel: [  175.564158] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Jun 10 21:22:43 bradf-x301 kernel: [  175.564164] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Jun 10 21:22:43 bradf-x301 kernel: [  175.564171] Process btrfs-endio-wri
(pid: 936, threadinfo ffff880128262000, task ffff880128635b40)
Jun 10 21:22:43 bradf-x301 kernel: [  175.564179]  ffff880100000002
0000000000000000 ffff880130b301b8 000000000000b242
Jun 10 21:22:43 bradf-x301 kernel: [  175.564189]<0>  ffff880128263940
ffff88013081c630 ffff880123dba900 ffff88013279e800
Jun 10 21:22:43 bradf-x301 kernel: [  175.564199]<0>  ffff880123dba7e0
ffff880123dbd000 ffff8801282639f0 ffffffffa014992b
Jun 10 21:22:43 bradf-x301 kernel: [  175.564234]  [<ffffffffa014992b>]
__btrfs_cow_block+0x3bb/0x620 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564257]  [<ffffffffa0149c97>]
btrfs_cow_block+0x107/0x1f0 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564280]  [<ffffffffa015086e>]
btrfs_search_slot+0x37e/0x6b0 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564308]  [<ffffffffa016104d>]
btrfs_lookup_csum+0x6d/0x160 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564321]  [<ffffffff81140915>] ?
kmem_cache_alloc+0xe5/0x140
Jun 10 21:22:43 bradf-x301 kernel: [  175.564347]  [<ffffffffa0161d29>]
btrfs_csum_file_blocks+0xd9/0x850 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564380]  [<ffffffffa0186b9e>] ?
merge_state+0x7e/0x150 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564411]  [<ffffffffa0186317>] ?
free_extent_state+0x37/0x60 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564442]  [<ffffffffa016b4b9>]
add_pending_csums+0x49/0x70 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564471]  [<ffffffffa016d7f3>]
btrfs_finish_ordered_io+0x1a3/0x2a0 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564482]  [<ffffffff81108aed>] ?
test_clear_page_writeback+0x8d/0x150
Jun 10 21:22:43 bradf-x301 kernel: [  175.564512]  [<ffffffffa016d90a>]
btrfs_writepage_end_io_hook+0x1a/0x20 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564542]  [<ffffffffa018822b>]
end_bio_extent_writepage+0x13b/0x180 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564553]  [<ffffffff8158235d>] ?
schedule_timeout+0x19d/0x310
Jun 10 21:22:43 bradf-x301 kernel: [  175.564564]  [<ffffffff8106e1d0>] ?
process_timeout+0x0/0x10
Jun 10 21:22:43 bradf-x301 kernel: [  175.564573]  [<ffffffff8117da1d>]
bio_endio+0x1d/0x40
Jun 10 21:22:43 bradf-x301 kernel: [  175.564601]  [<ffffffffa01641ec>]
end_workqueue_fn+0xfc/0x130 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564629]  [<ffffffffa01942cc>]
worker_loop+0x15c/0x4c0 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564657]  [<ffffffffa0194170>] ?
worker_loop+0x0/0x4c0 [btrfs]
Jun 10 21:22:43 bradf-x301 kernel: [  175.564668]  [<ffffffff8107d0b6>]
kthread+0x96/0xa0
Jun 10 21:22:43 bradf-x301 kernel: [  175.564677]  [<ffffffff8100aee4>]
kernel_thread_helper+0x4/0x10
Jun 10 21:22:43 bradf-x301 kernel: [  175.564686]  [<ffffffff8107d020>] ?
kthread+0x0/0xa0
Jun 10 21:22:43 bradf-x301 kernel: [  175.564693]  [<ffffffff8100aee0>] ?
kernel_thread_helper+0x0/0x10
Jun 10 21:22:43 bradf-x301 kernel: [  175.564809]  RSP<ffff8801282638f0>
Jun 10 21:22:43 bradf-x301 kernel: [  175.564816] ---[ end trace

32d3e1002acaefc4 ]---

Jun 10 21:23:17 bradf-x301 kernel: [  209.857602] CPU 1
Jun 10 21:23:17 bradf-x301 kernel: [  209.857605] Modules linked in: cryptd

aes_x86_64 aes_generic rfcomm binfmt_misc sco ppdev bridge stp bnep l2cap dm_crypt snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm thinkpad_acpi snd_seq_midi snd_rawmidi snd_seq_midi_event arc4 snd_seq snd_timer snd_seq_device uvcvideo lp iwlagn videodev parport iwlcore btusb mac80211 v4l1_compat snd cfg80211 bluetooth joydev soundcore v4l2_compat_ioctl32 psmouse tpm_tis tpm serio_raw tpm_bios led_class nvram snd_page_alloc btrfs zlib_deflate crc32c libcrc32c vga16fb vgastate usbhid hid i915 drm_kms_helper drm ahci i2c_algo_bit video e1000e output libahci intel_agp

Jun 10 21:23:17 bradf-x301 kernel: [  209.857719]
Jun 10 21:23:17 bradf-x301 kernel: [  209.857726] Pid: 946, comm:
btrfs-transacti Tainted: G      D W   2.6.35-1-generic #1-Ubuntu
2777MSU/2777MSU
Jun 10 21:23:17 bradf-x301 kernel: [  209.857733] RIP:
0010:[<ffffffffa015916b>]  [<ffffffffa015916b>]
btrfs_free_tree_block+0x3bb/0x3e0 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.857767] RSP: 0018:ffff88012821b820
  EFLAGS: 00010287
Jun 10 21:23:17 bradf-x301 kernel: [  209.857772] RAX: ffff8801326c5b00 RBX:
ffff88013279a000 RCX: ffff8801326c5300
Jun 10 21:23:17 bradf-x301 kernel: [  209.857778] RDX: 0000000181ffffff RSI:
0000000140000000 RDI: ffff8801304dc070
Jun 10 21:23:17 bradf-x301 kernel: [  209.857784] RBP: ffff88012821b870 R08:
0000000000000000 R09: 0000000000000002
Jun 10 21:23:17 bradf-x301 kernel: [  209.857790] R10: 0000000000000001 R11:
0000000000000000 R12: ffff880130ab0510
Jun 10 21:23:17 bradf-x301 kernel: [  209.857796] R13: ffff8801304dc128 R14:
ffff880123dbd040 R15: ffff8801326c5300
Jun 10 21:23:17 bradf-x301 kernel: [  209.857803] FS:
  0000000000000000(0000) GS:ffff880001e80000(0000) knlGS:0000000000000000
Jun 10 21:23:17 bradf-x301 kernel: [  209.857810] CS:  0010 DS: 0000 ES:
0000 CR0: 000000008005003b
Jun 10 21:23:17 bradf-x301 kernel: [  209.857815] CR2: 0000000001be6028 CR3:
0000000001a2a000 CR4: 00000000000006e0
Jun 10 21:23:17 bradf-x301 kernel: [  209.857821] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Jun 10 21:23:17 bradf-x301 kernel: [  209.857827] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Jun 10 21:23:17 bradf-x301 kernel: [  209.857834] Process btrfs-transacti
(pid: 946, threadinfo ffff88012821a000, task ffff880128660000)
Jun 10 21:23:17 bradf-x301 kernel: [  209.857843]  ffff880100000002
0000000000000000 ffff880130b301b8 000000000000b242
Jun 10 21:23:17 bradf-x301 kernel: [  209.857852]<0>  ffff88012821b870
ffff880130ab0cf0 ffff880130b6a000 ffff88013279a000
Jun 10 21:23:17 bradf-x301 kernel: [  209.857862]<0>  ffff880130ab0510
ffff880123dbd040 ffff88012821b920 ffffffffa014992b
Jun 10 21:23:17 bradf-x301 kernel: [  209.857898]  [<ffffffffa014992b>]
__btrfs_cow_block+0x3bb/0x620 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.857920]  [<ffffffffa0149c97>]
btrfs_cow_block+0x107/0x1f0 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.857943]  [<ffffffffa015086e>]
btrfs_search_slot+0x37e/0x6b0 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.857969]  [<ffffffffa0157cfc>]
lookup_inline_extent_backref+0xbc/0x400 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.857982]  [<ffffffff81140915>] ?
kmem_cache_alloc+0xe5/0x140
Jun 10 21:23:17 bradf-x301 kernel: [  209.858006]  [<ffffffffa01583f6>]
__btrfs_free_extent+0xd6/0x710 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858031]  [<ffffffffa0158b8a>]
run_delayed_tree_ref+0x15a/0x160 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858055]  [<ffffffffa0158d8a>]
run_one_delayed_ref+0x9a/0xc0 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858080]  [<ffffffffa015b3a0>]
run_clustered_refs+0xc0/0x220 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858090]  [<ffffffff8104ff7a>] ?
finish_task_switch+0x4a/0xd0
Jun 10 21:23:17 bradf-x301 kernel: [  209.858115]  [<ffffffffa015b5ca>]
btrfs_run_delayed_refs+0xca/0x220 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858127]  [<ffffffff81582a9e>] ?
mutex_lock+0x1e/0x50
Jun 10 21:23:17 bradf-x301 kernel: [  209.858159]  [<ffffffffa0185a0e>] ?
btrfs_run_ordered_operations+0x1ee/0x210 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858189]  [<ffffffffa01694e0>]
btrfs_commit_transaction+0x80/0x710 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858198]  [<ffffffff81582a9e>] ?
mutex_lock+0x1e/0x50
Jun 10 21:23:17 bradf-x301 kernel: [  209.858227]  [<ffffffffa0169f8b>] ?
start_transaction+0x1ab/0x230 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858238]  [<ffffffff8107d610>] ?
autoremove_wake_function+0x0/0x40
Jun 10 21:23:17 bradf-x301 kernel: [  209.858265]  [<ffffffffa0163d53>]
transaction_kthread+0x283/0x290 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858293]  [<ffffffffa0163ad0>] ?
transaction_kthread+0x0/0x290 [btrfs]
Jun 10 21:23:17 bradf-x301 kernel: [  209.858302]  [<ffffffff8107d0b6>]
kthread+0x96/0xa0
Jun 10 21:23:17 bradf-x301 kernel: [  209.858311]  [<ffffffff8100aee4>]
kernel_thread_helper+0x4/0x10
Jun 10 21:23:17 bradf-x301 kernel: [  209.858320]  [<ffffffff8107d020>] ?
kthread+0x0/0xa0
Jun 10 21:23:17 bradf-x301 kernel: [  209.858327]  [<ffffffff8100aee0>] ?
kernel_thread_helper+0x0/0x10
Jun 10 21:23:17 bradf-x301 kernel: [  209.858441]  RSP<ffff88012821b820>
Jun 10 21:23:17 bradf-x301 kernel: [  209.858448] ---[ end trace
Quoted 2 lines

32d3e1002acaefc5 ]---

Quoted 8 lines

I have already sent a patch for this.
http://www.spinics.net/lists/linux-btrfs/msg05150.html

Yan, Zheng
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I've not seen this patch hit lkml yet.

Brad

Signature · 1 line
Brad Figg [email protected] http://www.canonical.com
#3 lore raw
Quoted 6 lines · Brad Figg
Quoted 5 lines · Zheng
Quoted 1 line

I have already sent a patch for this.
http://www.spinics.net/lists/linux-btrfs/msg05150.html

Quoted 7 lines
Quoted 5 lines

Yan, Zheng
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I've not seen this patch hit lkml yet.

This is now in the master branch of the btrfs-unstable tree.

-chris