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* Hand in Raid-5 code
@ 2012-02-05 16:55 Dag Nygren
  2012-02-09  2:55 ` Hang in Raid-5 code (Old bug back?) Dag Nygren
  0 siblings, 1 reply; 3+ messages in thread
From: Dag Nygren @ 2012-02-05 16:55 UTC (permalink / raw)
  To: linux-raid

Hi!

Using lessfs on top of an XFS on top on a software RAID-5 and see this freeze 
happening about once a week. Usually during heavy load.

Feb 5 02:51:04 mythserv kernel: INFO: task lessfs:2687 blocked for more than 
120 seconds.
Feb 5 02:51:04 mythserv kernel: “echo 0 > 
/proc/sys/kernel/hung_task_timeout_secs” disables this message.
Feb 5 02:51:04 mythserv kernel: lessfs D ffff88006faf1998 0 2687 1 0×00000000
Feb 5 02:51:04 mythserv kernel: ffff880066579828 0000000000000086 ffff8800665797b8 
ffffffff00000000
Feb 5 02:51:04 mythserv kernel: ffff88006faf1620 0000000000013300 ffff880066579fd8 
ffff880066578010
Feb 5 02:51:04 mythserv kernel: ffff880066579fd8 0000000000013300 ffffffff81655020 
ffff88006faf1620
Feb 5 02:51:04 mythserv kernel: Call Trace:
Feb 5 02:51:04 mythserv kernel: [] schedule+0x3f/0×60
Feb 5 02:51:04 mythserv kernel: [] get_active_stripe+0x2ea/0×790 [raid456]
Feb 5 02:51:04 mythserv kernel: [] ? try_to_wake_up+0x2b0/0x2b0
Feb 5 02:51:04 mythserv kernel: [] make_request+0x1ae/0×460 [raid456]
Feb 5 02:51:04 mythserv kernel: [] ? wake_up_bit+0×40/0×40
Feb 5 02:51:04 mythserv kernel: [] md_make_request+0xd5/0×200
Feb 5 02:51:04 mythserv kernel: [] generic_make_request+0xbf/0xf0
Feb 5 02:51:04 mythserv kernel: [] submit_bio+0×85/0×110
Feb 5 02:51:04 mythserv kernel: [] ? __bio_add_page+0×110/0×250
Feb 5 02:51:04 mythserv kernel: [] xfs_submit_ioend_bio+0×57/0×80 [xfs]
Feb 5 02:51:04 mythserv kernel: [] xfs_submit_ioend+0xf6/0×110 [xfs]
Feb 5 02:51:04 mythserv kernel: [] xfs_vm_writepage+0×230/0×500 [xfs]
Feb 5 02:51:04 mythserv kernel: [] __writepage+0×17/0×40
Feb 5 02:51:04 mythserv kernel: [] write_cache_pages+0×221/0x4a0
Feb 5 02:51:04 mythserv kernel: [] ? tomoyo_init_request_info+0x3f/0×70
Feb 5 02:51:04 mythserv kernel: [] ? set_page_dirty+0×70/0×70
Feb 5 02:51:04 mythserv kernel: [] generic_writepages+0×51/0×80
Feb 5 02:51:04 mythserv kernel: [] xfs_vm_writepages+0×53/0×70 [xfs]
Feb 5 02:51:04 mythserv kernel: [] do_writepages+0×21/0×40
Feb 5 02:51:04 mythserv kernel: [] __filemap_fdatawrite_range+0x5b/0×60
Feb 5 02:51:04 mythserv kernel: [] filemap_write_and_wait_range+0x5a/0×80
Feb 5 02:51:04 mythserv kernel: [] xfs_file_fsync+0×68/0x2d0 [xfs]
Feb 5 02:51:04 mythserv kernel: [] vfs_fsync_range+0x2b/0×40
Feb 5 02:51:04 mythserv kernel: [] vfs_fsync+0x1c/0×20
Feb 5 02:51:04 mythserv kernel: [] do_fsync+0x3a/0×60
Feb 5 02:51:04 mythserv kernel: [] sys_fsync+0×10/0×20
Feb 5 02:51:04 mythserv kernel: [] system_call_fastpath+0×16/0x1b

Any hints? Or any debugging I can do to help? I did find a similar cas from 
2008, but that is supposed to be fixed now.
This also started after updating the kernel to the 3.x series. At the moment 
using 3.2.2 and still seeing it.

-- 
Dag Nygren                               email: dag@newtech.fi
Oy Espoon NewTech Ab                     phone: +358 9 8024910
Träsktorpet 3                              fax: +358 9 8024916
02360 ESBO                              Mobile: +358 400 426312
FINLAND

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^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: Hang in Raid-5 code (Old bug back?)
  2012-02-05 16:55 Hand in Raid-5 code Dag Nygren
@ 2012-02-09  2:55 ` Dag Nygren
  2012-02-16 13:43   ` Konstantinos Skarlatos
  0 siblings, 1 reply; 3+ messages in thread
From: Dag Nygren @ 2012-02-09  2:55 UTC (permalink / raw)
  To: linux-raid

söndag 05 februari 2012 18:55:58 skrev  Dag Nygren:
> Hi!
> 
> Using lessfs on top of an XFS on top on a software RAID-5 and see this
> freeze happening about once a week. Usually during heavy load.

No comments on the stuff below? Nobody else?
Increased the stripe_cache_size to 4096 according to the workaround for ths 
old similiar bug. Is the bug back in the recent kernels?

Has not seen any freezes since that workaround but oth they weren't that 
frequent earlier either.


> Feb 5 02:51:04 mythserv kernel: INFO: task lessfs:2687 blocked for more than
> 120 seconds.
> Feb 5 02:51:04 mythserv kernel: “echo 0 >
> /proc/sys/kernel/hung_task_timeout_secs” disables this message.
> Feb 5 02:51:04 mythserv kernel: lessfs D ffff88006faf1998 0 2687 1
> 0×00000000 Feb 5 02:51:04 mythserv kernel: ffff880066579828
> 0000000000000086 ffff8800665797b8 ffffffff00000000
> Feb 5 02:51:04 mythserv kernel: ffff88006faf1620 0000000000013300
> ffff880066579fd8 ffff880066578010
> Feb 5 02:51:04 mythserv kernel: ffff880066579fd8 0000000000013300
> ffffffff81655020 ffff88006faf1620
> Feb 5 02:51:04 mythserv kernel: Call Trace:
> Feb 5 02:51:04 mythserv kernel: [] schedule+0x3f/0×60
> Feb 5 02:51:04 mythserv kernel: [] get_active_stripe+0x2ea/0×790 [raid456]
> Feb 5 02:51:04 mythserv kernel: [] ? try_to_wake_up+0x2b0/0x2b0
> Feb 5 02:51:04 mythserv kernel: [] make_request+0x1ae/0×460 [raid456]
> Feb 5 02:51:04 mythserv kernel: [] ? wake_up_bit+0×40/0×40
> Feb 5 02:51:04 mythserv kernel: [] md_make_request+0xd5/0×200
> Feb 5 02:51:04 mythserv kernel: [] generic_make_request+0xbf/0xf0
> Feb 5 02:51:04 mythserv kernel: [] submit_bio+0×85/0×110
> Feb 5 02:51:04 mythserv kernel: [] ? __bio_add_page+0×110/0×250
> Feb 5 02:51:04 mythserv kernel: [] xfs_submit_ioend_bio+0×57/0×80 [xfs]
> Feb 5 02:51:04 mythserv kernel: [] xfs_submit_ioend+0xf6/0×110 [xfs]
> Feb 5 02:51:04 mythserv kernel: [] xfs_vm_writepage+0×230/0×500 [xfs]
> Feb 5 02:51:04 mythserv kernel: [] __writepage+0×17/0×40
> Feb 5 02:51:04 mythserv kernel: [] write_cache_pages+0×221/0x4a0
> Feb 5 02:51:04 mythserv kernel: [] ? tomoyo_init_request_info+0x3f/0×70
> Feb 5 02:51:04 mythserv kernel: [] ? set_page_dirty+0×70/0×70
> Feb 5 02:51:04 mythserv kernel: [] generic_writepages+0×51/0×80
> Feb 5 02:51:04 mythserv kernel: [] xfs_vm_writepages+0×53/0×70 [xfs]
> Feb 5 02:51:04 mythserv kernel: [] do_writepages+0×21/0×40
> Feb 5 02:51:04 mythserv kernel: [] __filemap_fdatawrite_range+0x5b/0×60
> Feb 5 02:51:04 mythserv kernel: [] filemap_write_and_wait_range+0x5a/0×80
> Feb 5 02:51:04 mythserv kernel: [] xfs_file_fsync+0×68/0x2d0 [xfs]
> Feb 5 02:51:04 mythserv kernel: [] vfs_fsync_range+0x2b/0×40
> Feb 5 02:51:04 mythserv kernel: [] vfs_fsync+0x1c/0×20
> Feb 5 02:51:04 mythserv kernel: [] do_fsync+0x3a/0×60
> Feb 5 02:51:04 mythserv kernel: [] sys_fsync+0×10/0×20
> Feb 5 02:51:04 mythserv kernel: [] system_call_fastpath+0×16/0x1b
> 
> Any hints? Or any debugging I can do to help? I did find a similar cas from
> 2008, but that is supposed to be fixed now.
> This also started after updating the kernel to the 3.x series. At the moment
> using 3.2.2 and still seeing it.
-- 
Dag Nygren                               email: dag@newtech.fi
Oy Espoon NewTech Ab                     phone: +358 9 8024910
Träsktorpet 3                              fax: +358 9 8024916
02360 ESBO                              Mobile: +358 400 426312
FINLAND

--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: Hang in Raid-5 code (Old bug back?)
  2012-02-09  2:55 ` Hang in Raid-5 code (Old bug back?) Dag Nygren
@ 2012-02-16 13:43   ` Konstantinos Skarlatos
  0 siblings, 0 replies; 3+ messages in thread
From: Konstantinos Skarlatos @ 2012-02-16 13:43 UTC (permalink / raw)
  To: Dag Nygren; +Cc: linux-raid

On Πέμπτη, 9 Φεβρουάριος 2012 4:55:11 πμ, Dag Nygren wrote:
> söndag 05 februari 2012 18:55:58 skrev  Dag Nygren:
>> Hi!
>>
>> Using lessfs on top of an XFS on top on a software RAID-5 and see this
>> freeze happening about once a week. Usually during heavy load.
>
> No comments on the stuff below? Nobody else?

I also have frequent freezes on two raid5 arrays on different systems. 
kernels tested are 3.1 and 3.2.
system1: raid5-xfs-btrfs loop
system2: raid5-btrfs

when the freezes happen, iostat -xk 1 gives 100% usage on one random 
disk.
Here are some kernel messages from the raid5-xfs-loop btrfs system.

[Mon Jan 30 20:07:10 2012] INFO: task rsync:18646 blocked for more than 
120 seconds.
[Mon Jan 30 20:07:10 2012] "echo 0 > 
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
[Mon Jan 30 20:07:10 2012] rsync           D 0000000105d6f258     0 
18646  18645 0x00000000
[Mon Jan 30 20:07:10 2012]  ffff88013bb39a78 0000000000000086 
ffff880100000000 ffffffffa05086ba
[Mon Jan 30 20:07:10 2012]  ffff880200e94020 ffff88013bb39fd8 
ffff88013bb39fd8 ffff88013bb39fd8
[Mon Jan 30 20:07:10 2012]  ffff880202d21c80 ffff880200e94020 
ffff8800b14b2900 ffff88013bb39a18
[Mon Jan 30 20:07:10 2012] Call Trace:
[Mon Jan 30 20:07:10 2012]  [<ffffffffa05086ba>] ? 
btrfs_queue_worker+0x1ea/0x300 [btrfs]
[Mon Jan 30 20:07:10 2012]  [<ffffffffa04e70c5>] ? 
run_delalloc_range+0x185/0x360 [btrfs]
[Mon Jan 30 20:07:10 2012]  [<ffffffff8101d639>] ? read_tsc+0x9/0x20
[Mon Jan 30 20:07:10 2012]  [<ffffffff8109271d>] ? 
ktime_get_ts+0xad/0xe0
[Mon Jan 30 20:07:10 2012]  [<ffffffff8101d639>] ? read_tsc+0x9/0x20
[Mon Jan 30 20:07:10 2012]  [<ffffffff811055d0>] ? __lock_page+0x70/0x70
[Mon Jan 30 20:07:10 2012]  [<ffffffff814258bf>] schedule+0x3f/0x60
[Mon Jan 30 20:07:10 2012]  [<ffffffff8142596f>] io_schedule+0x8f/0xd0
[Mon Jan 30 20:07:10 2012]  [<ffffffff811055de>] sleep_on_page+0xe/0x20
[Mon Jan 30 20:07:10 2012]  [<ffffffff8142611f>] __wait_on_bit+0x5f/0x90
[Mon Jan 30 20:07:10 2012]  [<ffffffff811057c8>] 
wait_on_page_bit+0x78/0x80
[Mon Jan 30 20:07:10 2012]  [<ffffffff81088cf0>] ? 
autoremove_wake_function+0x40/0x40
[Mon Jan 30 20:07:10 2012]  [<ffffffffa04fe5e5>] 
extent_write_cache_pages.isra.22.constprop.30+0x295/0x3f0 [btrfs]
[Mon Jan 30 20:07:10 2012]  [<ffffffff81150d3b>] ? 
kmem_cache_free+0x13b/0x150
[Mon Jan 30 20:07:10 2012]  [<ffffffffa04fa6e7>] ? 
free_extent_state+0x37/0x60 [btrfs]
[Mon Jan 30 20:07:10 2012]  [<ffffffffa04fe985>] 
extent_writepages+0x45/0x60 [btrfs]
[Mon Jan 30 20:07:10 2012]  [<ffffffffa04e3790>] ? 
uncompress_inline.isra.47+0x1d0/0x1d0 [btrfs]
[Mon Jan 30 20:07:10 2012]  [<ffffffffa04e2a78>] 
btrfs_writepages+0x28/0x30 [btrfs]
[Mon Jan 30 20:07:10 2012]  [<ffffffff81110ff4>] do_writepages+0x24/0x40
[Mon Jan 30 20:07:10 2012]  [<ffffffff8110686b>] 
__filemap_fdatawrite_range+0x5b/0x60
[Mon Jan 30 20:07:10 2012]  [<ffffffff811077e3>] 
filemap_fdatawrite_range+0x13/0x20
[Mon Jan 30 20:07:10 2012]  [<ffffffffa04f92e6>] 
btrfs_wait_ordered_range+0x66/0x150 [btrfs]
[Mon Jan 30 20:07:10 2012]  [<ffffffffa04e8c28>] 
btrfs_truncate+0xc8/0x670 [btrfs]
[Mon Jan 30 20:07:10 2012]  [<ffffffffa04eaad1>] 
btrfs_setattr+0xc1/0x1b0 [btrfs]
[Mon Jan 30 20:07:10 2012]  [<ffffffff811827a2>] 
notify_change+0x1a2/0x340
[Mon Jan 30 20:07:10 2012]  [<ffffffff811656be>] do_truncate+0x5e/0xa0
[Mon Jan 30 20:07:10 2012]  [<ffffffff81165985>] 
sys_ftruncate+0xd5/0x120
[Mon Jan 30 20:07:10 2012]  [<ffffffff814290c2>] 
system_call_fastpath+0x16/0x1b
[Mon Jan 30 22:37:10 2012] INFO: task btrfs-delayed-m:24548 blocked for 
more than 120 seconds.
[Mon Jan 30 22:37:10 2012] "echo 0 > 
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
[Mon Jan 30 22:37:10 2012] btrfs-delayed-m D 0000000106001847     0 
24548      2 0x00000000
[Mon Jan 30 22:37:10 2012]  ffff8800014f3510 0000000000000046 
0000000000000000 0000000000000286
[Mon Jan 30 22:37:10 2012]  ffff880201804e60 ffff8800014f3fd8 
ffff8800014f3fd8 ffff8800014f3fd8
[Mon Jan 30 22:37:10 2012]  ffffffff8180d020 ffff880201804e60 
ffffffff811239c9 ffff880201804e60
[Mon Jan 30 22:37:10 2012] Call Trace:
[Mon Jan 30 22:37:10 2012]  [<ffffffff811239c9>] ? 
zone_statistics+0x99/0xc0
[Mon Jan 30 22:37:10 2012]  [<ffffffff81108065>] ? 
mempool_alloc_slab+0x15/0x20
[Mon Jan 30 22:37:10 2012]  [<ffffffff8104f4b5>] ? 
cpuacct_charge+0x65/0x70
[Mon Jan 30 22:37:10 2012]  [<ffffffff814258bf>] schedule+0x3f/0x60
[Mon Jan 30 22:37:10 2012]  [<ffffffff81427e75>] 
rwsem_down_failed_common+0xc5/0x160
[Mon Jan 30 22:37:10 2012]  [<ffffffff81427f23>] 
rwsem_down_write_failed+0x13/0x20
[Mon Jan 30 22:37:10 2012]  [<ffffffff81241fa3>] 
call_rwsem_down_write_failed+0x13/0x20
[Mon Jan 30 22:37:10 2012]  [<ffffffff81427545>] ? down_write+0x25/0x27
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04c74e9>] 
cache_block_group+0x229/0x3d0 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffff81088cb0>] ? 
abort_exclusive_wait+0xb0/0xb0
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04cc2a8>] 
find_free_extent.constprop.67+0xab8/0xb20 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffff8109271d>] ? 
ktime_get_ts+0xad/0xe0
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04cf7b8>] 
btrfs_reserve_extent+0xe8/0x220 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04cfe08>] 
btrfs_alloc_free_block+0x178/0x350 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04bee62>] 
__btrfs_cow_block+0x122/0x430 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04bf266>] 
btrfs_cow_block+0xf6/0x250 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa050e2e0>] ? 
btrfs_set_lock_blocking_rw+0x50/0xb0 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04c2dde>] 
btrfs_search_slot+0x18e/0x8a0 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04c81bb>] 
lookup_inline_extent_backref+0x9b/0x460 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04c9073>] 
insert_inline_extent_backref+0x63/0xe0 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04c918e>] 
__btrfs_inc_extent_ref.isra.57+0x9e/0x1d0 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04ce1c6>] 
run_clustered_refs+0x496/0x810 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa051b100>] ? 
btrfs_find_ref_cluster+0xe0/0x190 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04ce608>] 
btrfs_run_delayed_refs+0xc8/0x220 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04df96e>] 
__btrfs_end_transaction+0xbe/0x310 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04dfbd8>] 
btrfs_end_transaction_dmeta+0x18/0x20 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa0524b48>] 
btrfs_async_run_delayed_node_done+0xd8/0x1a0 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa0508920>] 
worker_loop+0x150/0x520 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa05087d0>] ? 
btrfs_queue_worker+0x300/0x300 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffff8108836c>] kthread+0x8c/0xa0
[Mon Jan 30 22:37:10 2012]  [<ffffffff8142b234>] 
kernel_thread_helper+0x4/0x10
[Mon Jan 30 22:37:10 2012]  [<ffffffff810882e0>] ? 
kthread_worker_fn+0x190/0x190
[Mon Jan 30 22:37:10 2012]  [<ffffffff8142b230>] ? gs_change+0x13/0x13
[Mon Jan 30 22:37:10 2012] INFO: task btrfs-delayed-m:24550 blocked for 
more than 120 seconds.
[Mon Jan 30 22:37:10 2012] "echo 0 > 
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
[Mon Jan 30 22:37:10 2012] btrfs-delayed-m D 000000010600185f     0 
24550      2 0x00000000
[Mon Jan 30 22:37:10 2012]  ffff88001b521630 0000000000000046 
ffff88001b521570 ffffffff8105c001
[Mon Jan 30 22:37:10 2012]  ffff8801ce0d23a0 ffff88001b521fd8 
ffff88001b521fd8 ffff88001b521fd8
[Mon Jan 30 22:37:10 2012]  ffff880202d21c80 ffff8801ce0d23a0 
ffff8801ce0d23e8 0000000000000001
[Mon Jan 30 22:37:10 2012] Call Trace:
[Mon Jan 30 22:37:10 2012]  [<ffffffff8105c001>] ? 
update_curr+0x121/0x1f0
[Mon Jan 30 22:37:10 2012]  [<ffffffff81151f13>] ? 
kmem_cache_alloc+0x133/0x160
[Mon Jan 30 22:37:10 2012]  [<ffffffff81150c2f>] ? 
kmem_cache_free+0x2f/0x150
[Mon Jan 30 22:37:10 2012]  [<ffffffff81181948>] ? iput+0x48/0x210
[Mon Jan 30 22:37:10 2012]  [<ffffffffa051405d>] ? 
tree_search_offset.isra.24+0x1ed/0x230 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffff81151d03>] ? 
kmem_cache_alloc_trace+0x133/0x160
[Mon Jan 30 22:37:10 2012]  [<ffffffff814258bf>] schedule+0x3f/0x60
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04c7192>] 
wait_block_group_cache_progress+0xe2/0x110 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffff81088cb0>] ? 
abort_exclusive_wait+0xb0/0xb0
[Mon Jan 30 22:37:10 2012]  [<ffffffff81088cb0>] ? 
abort_exclusive_wait+0xb0/0xb0
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04cbbbd>] 
find_free_extent.constprop.67+0x3cd/0xb20 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffff8109271d>] ? 
ktime_get_ts+0xad/0xe0
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04cf7b8>] 
btrfs_reserve_extent+0xe8/0x220 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04cfe08>] 
btrfs_alloc_free_block+0x178/0x350 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04bee62>] 
__btrfs_cow_block+0x122/0x430 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04bf266>] 
btrfs_cow_block+0xf6/0x250 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa050e2e0>] ? 
btrfs_set_lock_blocking_rw+0x50/0xb0 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04c2dde>] 
btrfs_search_slot+0x18e/0x8a0 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04c602d>] ? 
find_next_key+0xdd/0xf0 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04c45ac>] 
btrfs_insert_empty_items+0x7c/0xe0 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04c8845>] 
insert_extent_data_ref+0x65/0x2a0 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04c92ad>] 
__btrfs_inc_extent_ref.isra.57+0x1bd/0x1d0 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04cdfd2>] 
run_clustered_refs+0x2a2/0x810 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa051b100>] ? 
btrfs_find_ref_cluster+0xe0/0x190 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04ce608>] 
btrfs_run_delayed_refs+0xc8/0x220 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04df96e>] 
__btrfs_end_transaction+0xbe/0x310 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa04dfbd8>] 
btrfs_end_transaction_dmeta+0x18/0x20 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa0524b48>] 
btrfs_async_run_delayed_node_done+0xd8/0x1a0 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa0508920>] 
worker_loop+0x150/0x520 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffffa05087d0>] ? 
btrfs_queue_worker+0x300/0x300 [btrfs]
[Mon Jan 30 22:37:10 2012]  [<ffffffff8108836c>] kthread+0x8c/0xa0
[Mon Jan 30 22:37:10 2012]  [<ffffffff8142b234>] 
kernel_thread_helper+0x4/0x10
[Mon Jan 30 22:37:10 2012]  [<ffffffff810882e0>] ? 
kthread_worker_fn+0x190/0x190
[Mon Jan 30 22:37:10 2012]  [<ffffffff8142b230>] ? gs_change+0x13/0x13
[Tue Jan 31 12:55:10 2012] INFO: task btrfs-transacti:21407 blocked for 
more than 120 seconds.
[Tue Jan 31 12:55:10 2012] "echo 0 > 
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
[Tue Jan 31 12:55:10 2012] btrfs-transacti D 0000000106ebce55     0 
21407      2 0x00000000
[Tue Jan 31 12:55:10 2012]  ffff8801d9573bc0 0000000000000046 
ffffffff8142514e ffff880201a88000
[Tue Jan 31 12:55:10 2012]  ffff880201f9c740 ffff8801d9573fd8 
ffff8801d9573fd8 ffff8801d9573fd8
[Tue Jan 31 12:55:10 2012]  ffff880202cb4e60 ffff880201f9c740 
ffffffffa04fa601 ffff880071022e70
[Tue Jan 31 12:55:10 2012] Call Trace:
[Tue Jan 31 12:55:10 2012]  [<ffffffff8142514e>] ? 
__schedule+0x33e/0x980
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04fa601>] ? 
extent_io_exit+0xd1/0x130 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffff8101d639>] ? read_tsc+0x9/0x20
[Tue Jan 31 12:55:10 2012]  [<ffffffff8109271d>] ? 
ktime_get_ts+0xad/0xe0
[Tue Jan 31 12:55:10 2012]  [<ffffffff8122d436>] ? 
throtl_find_tg+0x46/0x60
[Tue Jan 31 12:55:10 2012]  [<ffffffff8122dd1a>] ? 
blk_throtl_bio+0x1fa/0x5f0
[Tue Jan 31 12:55:10 2012]  [<ffffffff811055d0>] ? __lock_page+0x70/0x70
[Tue Jan 31 12:55:10 2012]  [<ffffffff810d4934>] ? 
__delayacct_blkio_end+0x34/0x60
[Tue Jan 31 12:55:10 2012]  [<ffffffff814258bf>] schedule+0x3f/0x60
[Tue Jan 31 12:55:10 2012]  [<ffffffff81425fd5>] 
schedule_timeout+0x305/0x390
[Tue Jan 31 12:55:10 2012]  [<ffffffff8104f373>] ? __wake_up+0x53/0x70
[Tue Jan 31 12:55:10 2012]  [<ffffffff81424b48>] 
wait_for_common+0xc8/0x160
[Tue Jan 31 12:55:10 2012]  [<ffffffff8105f060>] ? 
try_to_wake_up+0x290/0x290
[Tue Jan 31 12:55:10 2012]  [<ffffffff81424bfd>] 
wait_for_completion+0x1d/0x20
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04d81db>] 
write_dev_flush+0x4b/0x140 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04da1b6>] 
write_all_supers+0x6f6/0x800 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04da2d3>] 
write_ctree_super+0x13/0x20 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04df63d>] 
btrfs_commit_transaction+0x63d/0x880 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffff81088cb0>] ? 
abort_exclusive_wait+0xb0/0xb0
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04dfcd4>] ? 
start_transaction+0x94/0x2b0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04d7e6d>] 
transaction_kthread+0x26d/0x290 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04d7c00>] ? 
btrfs_congested_fn+0xd0/0xd0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffff8108836c>] kthread+0x8c/0xa0
[Tue Jan 31 12:55:10 2012]  [<ffffffff8142b234>] 
kernel_thread_helper+0x4/0x10
[Tue Jan 31 12:55:10 2012]  [<ffffffff810882e0>] ? 
kthread_worker_fn+0x190/0x190
[Tue Jan 31 12:55:10 2012]  [<ffffffff8142b230>] ? gs_change+0x13/0x13
[Tue Jan 31 12:55:10 2012] INFO: task rsync:13574 blocked for more than 
120 seconds.
[Tue Jan 31 12:55:10 2012] "echo 0 > 
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
[Tue Jan 31 12:55:10 2012] rsync           D 0000000106ebce49     0 
13574  12299 0x00000000
[Tue Jan 31 12:55:10 2012]  ffff880012c29758 0000000000000082 
ffff880000000000 ffffffff8104f373
[Tue Jan 31 12:55:10 2012]  ffff880202355ca0 ffff880012c29fd8 
ffff880012c29fd8 ffff880012c29fd8
[Tue Jan 31 12:55:10 2012]  ffff880202cb7200 ffff880202355ca0 
ffff880012c296a8 ffffffffa01a31be
[Tue Jan 31 12:55:10 2012] Call Trace:
[Tue Jan 31 12:55:10 2012]  [<ffffffff8104f373>] ? __wake_up+0x53/0x70
[Tue Jan 31 12:55:10 2012]  [<ffffffffa01a31be>] ? 
loop_make_request+0xde/0x110 [loop]
[Tue Jan 31 12:55:10 2012]  [<ffffffff8121d877>] ? 
generic_make_request+0xc7/0x100
[Tue Jan 31 12:55:10 2012]  [<ffffffff8121d937>] ? submit_bio+0x87/0x110
[Tue Jan 31 12:55:10 2012]  [<ffffffff8101d639>] ? read_tsc+0x9/0x20
[Tue Jan 31 12:55:10 2012]  [<ffffffff811055d0>] ? __lock_page+0x70/0x70
[Tue Jan 31 12:55:10 2012]  [<ffffffff814258bf>] schedule+0x3f/0x60
[Tue Jan 31 12:55:10 2012]  [<ffffffff8142596f>] io_schedule+0x8f/0xd0
[Tue Jan 31 12:55:10 2012]  [<ffffffff811055de>] sleep_on_page+0xe/0x20
[Tue Jan 31 12:55:10 2012]  [<ffffffff8142611f>] __wait_on_bit+0x5f/0x90
[Tue Jan 31 12:55:10 2012]  [<ffffffff811057c8>] 
wait_on_page_bit+0x78/0x80
[Tue Jan 31 12:55:10 2012]  [<ffffffff81088cf0>] ? 
autoremove_wake_function+0x40/0x40
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04ffe66>] 
read_extent_buffer_pages+0x476/0x510 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04d6f90>] ? 
verify_parent_transid+0x160/0x160 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04d815a>] 
btree_read_extent_buffer_pages.isra.100+0x8a/0xc0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04d98f1>] 
read_tree_block+0x41/0x60 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04c0ca3>] 
read_block_for_search.isra.33+0xf3/0x3d0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04c0577>] ? 
generic_bin_search.constprop.35+0xe7/0x160 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04c2fe0>] 
btrfs_search_slot+0x390/0x8a0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04d5eef>] 
btrfs_lookup_inode+0x2f/0xa0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04e9b31>] btrfs_iget+0x101/0x490 
[btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffff8117a210>] ? __pollwait+0xf0/0xf0
[Tue Jan 31 12:55:10 2012]  [<ffffffff8117d000>] ? d_validate+0x10/0xb0
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04ea793>] 
btrfs_lookup_dentry+0x453/0x4e0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffff8117f3e5>] ? __d_lookup+0xb5/0x170
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04ea83d>] btrfs_lookup+0x1d/0x60 
[btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffff81172e9d>] 
d_inode_lookup.isra.12+0x1d/0x50
[Tue Jan 31 12:55:10 2012]  [<ffffffff81173292>] do_lookup+0x382/0x3d0
[Tue Jan 31 12:55:10 2012]  [<ffffffff81174d0c>] 
path_lookupat+0x11c/0x760
[Tue Jan 31 12:55:10 2012]  [<ffffffff81175381>] 
do_path_lookup+0x31/0xc0
[Tue Jan 31 12:55:10 2012]  [<ffffffff811771d9>] 
user_path_at_empty+0x59/0xa0
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04bac3d>] ? 
btrfs_fs_dirty_inode+0x1d/0x80 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffff8118f1ef>] ? 
__mark_inode_dirty+0x19f/0x230
[Tue Jan 31 12:55:10 2012]  [<ffffffff81177231>] user_path_at+0x11/0x20
[Tue Jan 31 12:55:10 2012]  [<ffffffff8116bf4a>] vfs_fstatat+0x3a/0x70
[Tue Jan 31 12:55:10 2012]  [<ffffffff811798c0>] ? sys_ioctl+0xa0/0xa0
[Tue Jan 31 12:55:10 2012]  [<ffffffff8116bf9e>] vfs_lstat+0x1e/0x20
[Tue Jan 31 12:55:10 2012]  [<ffffffff8116c13a>] sys_newlstat+0x1a/0x40
[Tue Jan 31 12:55:10 2012]  [<ffffffff81179d1c>] ? 
sys_getdents+0xbc/0xf0
[Tue Jan 31 12:55:10 2012]  [<ffffffff814290c2>] 
system_call_fastpath+0x16/0x1b
[Tue Jan 31 12:55:10 2012] INFO: task rsync:19379 blocked for more than 
120 seconds.
[Tue Jan 31 12:55:10 2012] "echo 0 > 
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
[Tue Jan 31 12:55:10 2012] rsync           D 0000000106ebce5c     0 
19379  18859 0x00000000
[Tue Jan 31 12:55:10 2012]  ffff88017e46b758 0000000000000086 
ffff880100000000 ffffffff8104f373
[Tue Jan 31 12:55:10 2012]  ffff88002d35c740 ffff88017e46bfd8 
ffff88017e46bfd8 ffff88017e46bfd8
[Tue Jan 31 12:55:10 2012]  ffff880202cb4e60 ffff88002d35c740 
ffff88017e46b6a8 ffffffffa01a31be
[Tue Jan 31 12:55:10 2012] Call Trace:
[Tue Jan 31 12:55:10 2012]  [<ffffffff8104f373>] ? __wake_up+0x53/0x70
[Tue Jan 31 12:55:10 2012]  [<ffffffffa01a31be>] ? 
loop_make_request+0xde/0x110 [loop]
[Tue Jan 31 12:55:10 2012]  [<ffffffff8121d877>] ? 
generic_make_request+0xc7/0x100
[Tue Jan 31 12:55:10 2012]  [<ffffffff8121d937>] ? submit_bio+0x87/0x110
[Tue Jan 31 12:55:10 2012]  [<ffffffff8101d639>] ? read_tsc+0x9/0x20
[Tue Jan 31 12:55:10 2012]  [<ffffffff811055d0>] ? __lock_page+0x70/0x70
[Tue Jan 31 12:55:10 2012]  [<ffffffff814258bf>] schedule+0x3f/0x60
[Tue Jan 31 12:55:10 2012]  [<ffffffff8142596f>] io_schedule+0x8f/0xd0
[Tue Jan 31 12:55:10 2012]  [<ffffffff811055de>] sleep_on_page+0xe/0x20
[Tue Jan 31 12:55:10 2012]  [<ffffffff8142611f>] __wait_on_bit+0x5f/0x90
[Tue Jan 31 12:55:10 2012]  [<ffffffff811057c8>] 
wait_on_page_bit+0x78/0x80
[Tue Jan 31 12:55:10 2012]  [<ffffffff81088cf0>] ? 
autoremove_wake_function+0x40/0x40
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04ffe66>] 
read_extent_buffer_pages+0x476/0x510 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04d6f90>] ? 
verify_parent_transid+0x160/0x160 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04d815a>] 
btree_read_extent_buffer_pages.isra.100+0x8a/0xc0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04d98f1>] 
read_tree_block+0x41/0x60 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04c0ca3>] 
read_block_for_search.isra.33+0xf3/0x3d0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04c0577>] ? 
generic_bin_search.constprop.35+0xe7/0x160 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04c2fe0>] 
btrfs_search_slot+0x390/0x8a0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04d5eef>] 
btrfs_lookup_inode+0x2f/0xa0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04e9b31>] btrfs_iget+0x101/0x490 
[btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04ea7e5>] ? 
btrfs_lookup_dentry+0x4a5/0x4e0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffff8117d000>] ? d_validate+0x10/0xb0
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04ea793>] 
btrfs_lookup_dentry+0x453/0x4e0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffff8117f3e5>] ? __d_lookup+0xb5/0x170
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04ea83d>] btrfs_lookup+0x1d/0x60 
[btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffff81172e9d>] 
d_inode_lookup.isra.12+0x1d/0x50
[Tue Jan 31 12:55:10 2012]  [<ffffffff81173292>] do_lookup+0x382/0x3d0
[Tue Jan 31 12:55:10 2012]  [<ffffffff81172abb>] ? 
getname_flags+0x3b/0x260
[Tue Jan 31 12:55:10 2012]  [<ffffffff81174d0c>] 
path_lookupat+0x11c/0x760
[Tue Jan 31 12:55:10 2012]  [<ffffffff81175381>] 
do_path_lookup+0x31/0xc0
[Tue Jan 31 12:55:10 2012]  [<ffffffff811771d9>] 
user_path_at_empty+0x59/0xa0
[Tue Jan 31 12:55:10 2012]  [<ffffffff811798c0>] ? sys_ioctl+0xa0/0xa0
[Tue Jan 31 12:55:10 2012]  [<ffffffff8116bb94>] ? 
inode_get_bytes+0x44/0x60
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04e0df6>] ? 
btrfs_getattr+0x56/0x90 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffff8116bd34>] ? cp_new_stat+0xe4/0xf0
[Tue Jan 31 12:55:10 2012]  [<ffffffff81177231>] user_path_at+0x11/0x20
[Tue Jan 31 12:55:10 2012]  [<ffffffff8116bf4a>] vfs_fstatat+0x3a/0x70
[Tue Jan 31 12:55:10 2012]  [<ffffffff8116bf9e>] vfs_lstat+0x1e/0x20
[Tue Jan 31 12:55:10 2012]  [<ffffffff8116c13a>] sys_newlstat+0x1a/0x40
[Tue Jan 31 12:55:10 2012]  [<ffffffff814290c2>] 
system_call_fastpath+0x16/0x1b
[Tue Jan 31 12:55:10 2012] INFO: task rsync:16598 blocked for more than 
120 seconds.
[Tue Jan 31 12:55:10 2012] "echo 0 > 
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
[Tue Jan 31 12:55:10 2012] rsync           D 0000000106ebce55     0 
16598  16597 0x00000000
[Tue Jan 31 12:55:10 2012]  ffff88000236f758 0000000000000086 
ffff88000236f678 ffffffff8104f373
[Tue Jan 31 12:55:10 2012]  ffff880025859560 ffff88000236ffd8 
ffff88000236ffd8 ffff88000236ffd8
[Tue Jan 31 12:55:10 2012]  ffff880202d21c80 ffff880025859560 
ffff88000236f6a8 ffffffffa01a31be
[Tue Jan 31 12:55:10 2012] Call Trace:
[Tue Jan 31 12:55:10 2012]  [<ffffffff8104f373>] ? __wake_up+0x53/0x70
[Tue Jan 31 12:55:10 2012]  [<ffffffffa01a31be>] ? 
loop_make_request+0xde/0x110 [loop]
[Tue Jan 31 12:55:10 2012]  [<ffffffff8121d877>] ? 
generic_make_request+0xc7/0x100
[Tue Jan 31 12:55:10 2012]  [<ffffffff8121d937>] ? submit_bio+0x87/0x110
[Tue Jan 31 12:55:10 2012]  [<ffffffff8101d639>] ? read_tsc+0x9/0x20
[Tue Jan 31 12:55:10 2012]  [<ffffffff8109271d>] ? 
ktime_get_ts+0xad/0xe0
[Tue Jan 31 12:55:10 2012]  [<ffffffff811055d0>] ? __lock_page+0x70/0x70
[Tue Jan 31 12:55:10 2012]  [<ffffffff814258bf>] schedule+0x3f/0x60
[Tue Jan 31 12:55:10 2012]  [<ffffffff8142596f>] io_schedule+0x8f/0xd0
[Tue Jan 31 12:55:10 2012]  [<ffffffff811055de>] sleep_on_page+0xe/0x20
[Tue Jan 31 12:55:10 2012]  [<ffffffff8142611f>] __wait_on_bit+0x5f/0x90
[Tue Jan 31 12:55:10 2012]  [<ffffffff811057c8>] 
wait_on_page_bit+0x78/0x80
[Tue Jan 31 12:55:10 2012]  [<ffffffff81088cf0>] ? 
autoremove_wake_function+0x40/0x40
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04ffe66>] 
read_extent_buffer_pages+0x476/0x510 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04d6f90>] ? 
verify_parent_transid+0x160/0x160 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04d815a>] 
btree_read_extent_buffer_pages.isra.100+0x8a/0xc0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04d98f1>] 
read_tree_block+0x41/0x60 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04c0ca3>] 
read_block_for_search.isra.33+0xf3/0x3d0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04c0577>] ? 
generic_bin_search.constprop.35+0xe7/0x160 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04c2fe0>] 
btrfs_search_slot+0x390/0x8a0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04d5eef>] 
btrfs_lookup_inode+0x2f/0xa0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04e9b31>] btrfs_iget+0x101/0x490 
[btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04ea7e5>] ? 
btrfs_lookup_dentry+0x4a5/0x4e0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffff8117d000>] ? d_validate+0x10/0xb0
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04ea793>] 
btrfs_lookup_dentry+0x453/0x4e0 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffff8107150a>] ? ns_capable+0x2a/0x60
[Tue Jan 31 12:55:10 2012]  [<ffffffff811735e9>] ? 
generic_permission+0x149/0x280
[Tue Jan 31 12:55:10 2012]  [<ffffffff8117f3e5>] ? __d_lookup+0xb5/0x170
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04ea83d>] btrfs_lookup+0x1d/0x60 
[btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffff81172e9d>] 
d_inode_lookup.isra.12+0x1d/0x50
[Tue Jan 31 12:55:10 2012]  [<ffffffff81173292>] do_lookup+0x382/0x3d0
[Tue Jan 31 12:55:10 2012]  [<ffffffff81172abb>] ? 
getname_flags+0x3b/0x260
[Tue Jan 31 12:55:10 2012]  [<ffffffff81174d0c>] 
path_lookupat+0x11c/0x760
[Tue Jan 31 12:55:10 2012]  [<ffffffff81175381>] 
do_path_lookup+0x31/0xc0
[Tue Jan 31 12:55:10 2012]  [<ffffffff811771d9>] 
user_path_at_empty+0x59/0xa0
[Tue Jan 31 12:55:10 2012]  [<ffffffff8116bb94>] ? 
inode_get_bytes+0x44/0x60
[Tue Jan 31 12:55:10 2012]  [<ffffffffa04e0df6>] ? 
btrfs_getattr+0x56/0x90 [btrfs]
[Tue Jan 31 12:55:10 2012]  [<ffffffff8116bd34>] ? cp_new_stat+0xe4/0xf0
[Tue Jan 31 12:55:10 2012]  [<ffffffff81177231>] user_path_at+0x11/0x20
[Tue Jan 31 12:55:10 2012]  [<ffffffff8116bf4a>] vfs_fstatat+0x3a/0x70
[Tue Jan 31 12:55:10 2012]  [<ffffffff8116bf9e>] vfs_lstat+0x1e/0x20
[Tue Jan 31 12:55:10 2012]  [<ffffffff8116c13a>] sys_newlstat+0x1a/0x40
[Tue Jan 31 12:55:10 2012]  [<ffffffff814290c2>] 
system_call_fastpath+0x16/0x1b
[Tue Jan 31 13:02:52 2012] device-mapper: uevent: version 1.0.3
[Tue Jan 31 13:02:52 2012] device-mapper: ioctl: 4.22.0-ioctl 
(2011-10-19) initialised: dm-devel@redhat.com
[Tue Jan 31 13:23:10 2012] INFO: task rsync:13574 blocked for more than 
120 seconds.
[Tue Jan 31 13:23:10 2012] "echo 0 > 
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
[Tue Jan 31 13:23:10 2012] rsync           D 0000000106f37614     0 
13574  12299 0x00000000
[Tue Jan 31 13:23:10 2012]  ffff880012c29a88 0000000000000082 
ffff880012c299a8 ffffffff8104f373
[Tue Jan 31 13:23:10 2012]  ffff880202355ca0 ffff880012c29fd8 
ffff880012c29fd8 ffff880012c29fd8
[Tue Jan 31 13:23:10 2012]  ffff880202d21c80 ffff880202355ca0 
ffff880012c299d8 ffffffffa01a31be
[Tue Jan 31 13:23:10 2012] Call Trace:
[Tue Jan 31 13:23:10 2012]  [<ffffffff8104f373>] ? __wake_up+0x53/0x70
[Tue Jan 31 13:23:10 2012]  [<ffffffffa01a31be>] ? 
loop_make_request+0xde/0x110 [loop]
[Tue Jan 31 13:23:10 2012]  [<ffffffff8121d877>] ? 
generic_make_request+0xc7/0x100
[Tue Jan 31 13:23:10 2012]  [<ffffffff8121d937>] ? submit_bio+0x87/0x110
[Tue Jan 31 13:23:10 2012]  [<ffffffff8101d639>] ? read_tsc+0x9/0x20
[Tue Jan 31 13:23:10 2012]  [<ffffffff8109271d>] ? 
ktime_get_ts+0xad/0xe0
[Tue Jan 31 13:23:10 2012]  [<ffffffff811055d0>] ? __lock_page+0x70/0x70
[Tue Jan 31 13:23:10 2012]  [<ffffffff814258bf>] schedule+0x3f/0x60
[Tue Jan 31 13:23:10 2012]  [<ffffffff8142596f>] io_schedule+0x8f/0xd0
[Tue Jan 31 13:23:10 2012]  [<ffffffff811055de>] sleep_on_page+0xe/0x20
[Tue Jan 31 13:23:10 2012]  [<ffffffff8142611f>] __wait_on_bit+0x5f/0x90
[Tue Jan 31 13:23:10 2012]  [<ffffffff811057c8>] 
wait_on_page_bit+0x78/0x80
[Tue Jan 31 13:23:10 2012]  [<ffffffff81088cf0>] ? 
autoremove_wake_function+0x40/0x40
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04ffe66>] 
read_extent_buffer_pages+0x476/0x510 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04d6f90>] ? 
verify_parent_transid+0x160/0x160 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04d815a>] 
btree_read_extent_buffer_pages.isra.100+0x8a/0xc0 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04d98f1>] 
read_tree_block+0x41/0x60 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04c0ca3>] 
read_block_for_search.isra.33+0xf3/0x3d0 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04c2fe0>] 
btrfs_search_slot+0x390/0x8a0 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffff8123a8bb>] ? 
radix_tree_lookup+0xb/0x10
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04e0837>] 
btrfs_real_readdir+0x1b7/0x720 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffff811798c0>] ? sys_ioctl+0xa0/0xa0
[Tue Jan 31 13:23:10 2012]  [<ffffffff81426703>] ? 
__mutex_lock_killable_slowpath+0x273/0x400
[Tue Jan 31 13:23:10 2012]  [<ffffffff811798c0>] ? sys_ioctl+0xa0/0xa0
[Tue Jan 31 13:23:10 2012]  [<ffffffff81179bc0>] vfs_readdir+0xb0/0xe0
[Tue Jan 31 13:23:10 2012]  [<ffffffff81179ce9>] sys_getdents+0x89/0xf0
[Tue Jan 31 13:23:10 2012]  [<ffffffff814290c2>] 
system_call_fastpath+0x16/0x1b
[Tue Jan 31 13:23:10 2012] INFO: task rsync:19880 blocked for more than 
120 seconds.
[Tue Jan 31 13:23:10 2012] "echo 0 > 
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
[Tue Jan 31 13:23:10 2012] rsync           D 0000000106f37616     0 
19880  19818 0x00000000
[Tue Jan 31 13:23:10 2012]  ffff88019f8a3758 0000000000000086 
ffff880100000000 ffffffff8104f373
[Tue Jan 31 13:23:10 2012]  ffff8801e3e0b900 ffff88019f8a3fd8 
ffff88019f8a3fd8 ffff88019f8a3fd8
[Tue Jan 31 13:23:10 2012]  ffff880202cb4e60 ffff8801e3e0b900 
ffff88019f8a36a8 ffffffffa01a31be
[Tue Jan 31 13:23:10 2012] Call Trace:
[Tue Jan 31 13:23:10 2012]  [<ffffffff8104f373>] ? __wake_up+0x53/0x70
[Tue Jan 31 13:23:10 2012]  [<ffffffffa01a31be>] ? 
loop_make_request+0xde/0x110 [loop]
[Tue Jan 31 13:23:10 2012]  [<ffffffff8121d877>] ? 
generic_make_request+0xc7/0x100
[Tue Jan 31 13:23:10 2012]  [<ffffffff8121d937>] ? submit_bio+0x87/0x110
[Tue Jan 31 13:23:10 2012]  [<ffffffff8101d639>] ? read_tsc+0x9/0x20
[Tue Jan 31 13:23:10 2012]  [<ffffffff811055d0>] ? __lock_page+0x70/0x70
[Tue Jan 31 13:23:10 2012]  [<ffffffff814258bf>] schedule+0x3f/0x60
[Tue Jan 31 13:23:10 2012]  [<ffffffff8142596f>] io_schedule+0x8f/0xd0
[Tue Jan 31 13:23:10 2012]  [<ffffffff811055de>] sleep_on_page+0xe/0x20
[Tue Jan 31 13:23:10 2012]  [<ffffffff8142611f>] __wait_on_bit+0x5f/0x90
[Tue Jan 31 13:23:10 2012]  [<ffffffff811057c8>] 
wait_on_page_bit+0x78/0x80
[Tue Jan 31 13:23:10 2012]  [<ffffffff81088cf0>] ? 
autoremove_wake_function+0x40/0x40
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04ffe66>] 
read_extent_buffer_pages+0x476/0x510 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04d6f90>] ? 
verify_parent_transid+0x160/0x160 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04d815a>] 
btree_read_extent_buffer_pages.isra.100+0x8a/0xc0 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04d98f1>] 
read_tree_block+0x41/0x60 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04c0ca3>] 
read_block_for_search.isra.33+0xf3/0x3d0 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04c0577>] ? 
generic_bin_search.constprop.35+0xe7/0x160 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04c2fe0>] 
btrfs_search_slot+0x390/0x8a0 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04d5eef>] 
btrfs_lookup_inode+0x2f/0xa0 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04e9b31>] btrfs_iget+0x101/0x490 
[btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04ea7e5>] ? 
btrfs_lookup_dentry+0x4a5/0x4e0 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffff8117d000>] ? d_validate+0x10/0xb0
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04ea793>] 
btrfs_lookup_dentry+0x453/0x4e0 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffff8117f3e5>] ? __d_lookup+0xb5/0x170
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04ea83d>] btrfs_lookup+0x1d/0x60 
[btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffff81172e9d>] 
d_inode_lookup.isra.12+0x1d/0x50
[Tue Jan 31 13:23:10 2012]  [<ffffffff81173292>] do_lookup+0x382/0x3d0
[Tue Jan 31 13:23:10 2012]  [<ffffffff81174d0c>] 
path_lookupat+0x11c/0x760
[Tue Jan 31 13:23:10 2012]  [<ffffffff81175381>] 
do_path_lookup+0x31/0xc0
[Tue Jan 31 13:23:10 2012]  [<ffffffff811771d9>] 
user_path_at_empty+0x59/0xa0
[Tue Jan 31 13:23:10 2012]  [<ffffffff811798c0>] ? sys_ioctl+0xa0/0xa0
[Tue Jan 31 13:23:10 2012]  [<ffffffff8116bb94>] ? 
inode_get_bytes+0x44/0x60
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04e0df6>] ? 
btrfs_getattr+0x56/0x90 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffff8116bd34>] ? cp_new_stat+0xe4/0xf0
[Tue Jan 31 13:23:10 2012]  [<ffffffff81177231>] user_path_at+0x11/0x20
[Tue Jan 31 13:23:10 2012]  [<ffffffff8116bf4a>] vfs_fstatat+0x3a/0x70
[Tue Jan 31 13:23:10 2012]  [<ffffffff8116bf9e>] vfs_lstat+0x1e/0x20
[Tue Jan 31 13:23:10 2012]  [<ffffffff8116c13a>] sys_newlstat+0x1a/0x40
[Tue Jan 31 13:23:10 2012]  [<ffffffff814290c2>] 
system_call_fastpath+0x16/0x1b
[Tue Jan 31 13:23:10 2012] INFO: task rsync:20089 blocked for more than 
120 seconds.
[Tue Jan 31 13:23:10 2012] "echo 0 > 
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
[Tue Jan 31 13:23:10 2012] rsync           D 0000000106f37615     0 
20089  20088 0x00000000
[Tue Jan 31 13:23:10 2012]  ffff880046403758 0000000000000086 
ffff880000000000 ffffffff8104f373
[Tue Jan 31 13:23:10 2012]  ffff8801e3e0c020 ffff880046403fd8 
ffff880046403fd8 ffff880046403fd8
[Tue Jan 31 13:23:10 2012]  ffff880202cb4e60 ffff8801e3e0c020 
ffff8800464036a8 ffffffffa01a31be
[Tue Jan 31 13:23:10 2012] Call Trace:
[Tue Jan 31 13:23:10 2012]  [<ffffffff8104f373>] ? __wake_up+0x53/0x70
[Tue Jan 31 13:23:10 2012]  [<ffffffffa01a31be>] ? 
loop_make_request+0xde/0x110 [loop]
[Tue Jan 31 13:23:10 2012]  [<ffffffff8121d877>] ? 
generic_make_request+0xc7/0x100
[Tue Jan 31 13:23:10 2012]  [<ffffffff8121d937>] ? submit_bio+0x87/0x110
[Tue Jan 31 13:23:10 2012]  [<ffffffff8101d639>] ? read_tsc+0x9/0x20
[Tue Jan 31 13:23:10 2012]  [<ffffffff811055d0>] ? __lock_page+0x70/0x70
[Tue Jan 31 13:23:10 2012]  [<ffffffff814258bf>] schedule+0x3f/0x60
[Tue Jan 31 13:23:10 2012]  [<ffffffff8142596f>] io_schedule+0x8f/0xd0
[Tue Jan 31 13:23:10 2012]  [<ffffffff811055de>] sleep_on_page+0xe/0x20
[Tue Jan 31 13:23:10 2012]  [<ffffffff8142611f>] __wait_on_bit+0x5f/0x90
[Tue Jan 31 13:23:10 2012]  [<ffffffff811057c8>] 
wait_on_page_bit+0x78/0x80
[Tue Jan 31 13:23:10 2012]  [<ffffffff81088cf0>] ? 
autoremove_wake_function+0x40/0x40
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04ffe66>] 
read_extent_buffer_pages+0x476/0x510 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04d6f90>] ? 
verify_parent_transid+0x160/0x160 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04d815a>] 
btree_read_extent_buffer_pages.isra.100+0x8a/0xc0 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04d98f1>] 
read_tree_block+0x41/0x60 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04c0ca3>] 
read_block_for_search.isra.33+0xf3/0x3d0 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04c0577>] ? 
generic_bin_search.constprop.35+0xe7/0x160 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04c2fe0>] 
btrfs_search_slot+0x390/0x8a0 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04d5eef>] 
btrfs_lookup_inode+0x2f/0xa0 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04e9b31>] btrfs_iget+0x101/0x490 
[btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04ea7e5>] ? 
btrfs_lookup_dentry+0x4a5/0x4e0 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffff8117d000>] ? d_validate+0x10/0xb0
[Tue Jan 31 13:23:10 2012]  [<ffffffff81354f9b>] ? 
__alloc_skb+0x4b/0x240
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04ea793>] 
btrfs_lookup_dentry+0x453/0x4e0 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffff81090bc4>] ? in_group_p+0x34/0x40
[Tue Jan 31 13:23:10 2012]  [<ffffffff81173622>] ? 
generic_permission+0x182/0x280
[Tue Jan 31 13:23:10 2012]  [<ffffffff8117f3e5>] ? __d_lookup+0xb5/0x170
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04ea83d>] btrfs_lookup+0x1d/0x60 
[btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffff81172e9d>] 
d_inode_lookup.isra.12+0x1d/0x50
[Tue Jan 31 13:23:10 2012]  [<ffffffff81173292>] do_lookup+0x382/0x3d0
[Tue Jan 31 13:23:10 2012]  [<ffffffff81174d0c>] 
path_lookupat+0x11c/0x760
[Tue Jan 31 13:23:10 2012]  [<ffffffff81175381>] 
do_path_lookup+0x31/0xc0
[Tue Jan 31 13:23:10 2012]  [<ffffffff811771d9>] 
user_path_at_empty+0x59/0xa0
[Tue Jan 31 13:23:10 2012]  [<ffffffff8116bb94>] ? 
inode_get_bytes+0x44/0x60
[Tue Jan 31 13:23:10 2012]  [<ffffffffa04e0df6>] ? 
btrfs_getattr+0x56/0x90 [btrfs]
[Tue Jan 31 13:23:10 2012]  [<ffffffff8116bd34>] ? cp_new_stat+0xe4/0xf0
[Tue Jan 31 13:23:10 2012]  [<ffffffff81177231>] user_path_at+0x11/0x20
[Tue Jan 31 13:23:10 2012]  [<ffffffff8116bf4a>] vfs_fstatat+0x3a/0x70
[Tue Jan 31 13:23:10 2012]  [<ffffffff8116bf9e>] vfs_lstat+0x1e/0x20
[Tue Jan 31 13:23:10 2012]  [<ffffffff8116c13a>] sys_newlstat+0x1a/0x40
[Tue Jan 31 13:23:10 2012]  [<ffffffff814290c2>] 
system_call_fastpath+0x16/0x1b

> Increased the stripe_cache_size to 4096 according to the workaround for ths
> old similiar bug. Is the bug back in the recent kernels?
>
> Has not seen any freezes since that workaround but oth they weren't that
> frequent earlier either.
>
>
>> Feb 5 02:51:04 mythserv kernel: INFO: task lessfs:2687 blocked for more than
>> 120 seconds.
>> Feb 5 02:51:04 mythserv kernel: “echo 0>
>> /proc/sys/kernel/hung_task_timeout_secs” disables this message.
>> Feb 5 02:51:04 mythserv kernel: lessfs D ffff88006faf1998 0 2687 1
>> 0×00000000 Feb 5 02:51:04 mythserv kernel: ffff880066579828
>> 0000000000000086 ffff8800665797b8 ffffffff00000000
>> Feb 5 02:51:04 mythserv kernel: ffff88006faf1620 0000000000013300
>> ffff880066579fd8 ffff880066578010
>> Feb 5 02:51:04 mythserv kernel: ffff880066579fd8 0000000000013300
>> ffffffff81655020 ffff88006faf1620
>> Feb 5 02:51:04 mythserv kernel: Call Trace:
>> Feb 5 02:51:04 mythserv kernel: [] schedule+0x3f/0×60
>> Feb 5 02:51:04 mythserv kernel: [] get_active_stripe+0x2ea/0×790 [raid456]
>> Feb 5 02:51:04 mythserv kernel: [] ? try_to_wake_up+0x2b0/0x2b0
>> Feb 5 02:51:04 mythserv kernel: [] make_request+0x1ae/0×460 [raid456]
>> Feb 5 02:51:04 mythserv kernel: [] ? wake_up_bit+0×40/0×40
>> Feb 5 02:51:04 mythserv kernel: [] md_make_request+0xd5/0×200
>> Feb 5 02:51:04 mythserv kernel: [] generic_make_request+0xbf/0xf0
>> Feb 5 02:51:04 mythserv kernel: [] submit_bio+0×85/0×110
>> Feb 5 02:51:04 mythserv kernel: [] ? __bio_add_page+0×110/0×250
>> Feb 5 02:51:04 mythserv kernel: [] xfs_submit_ioend_bio+0×57/0×80 [xfs]
>> Feb 5 02:51:04 mythserv kernel: [] xfs_submit_ioend+0xf6/0×110 [xfs]
>> Feb 5 02:51:04 mythserv kernel: [] xfs_vm_writepage+0×230/0×500 [xfs]
>> Feb 5 02:51:04 mythserv kernel: [] __writepage+0×17/0×40
>> Feb 5 02:51:04 mythserv kernel: [] write_cache_pages+0×221/0x4a0
>> Feb 5 02:51:04 mythserv kernel: [] ? tomoyo_init_request_info+0x3f/0×70
>> Feb 5 02:51:04 mythserv kernel: [] ? set_page_dirty+0×70/0×70
>> Feb 5 02:51:04 mythserv kernel: [] generic_writepages+0×51/0×80
>> Feb 5 02:51:04 mythserv kernel: [] xfs_vm_writepages+0×53/0×70 [xfs]
>> Feb 5 02:51:04 mythserv kernel: [] do_writepages+0×21/0×40
>> Feb 5 02:51:04 mythserv kernel: [] __filemap_fdatawrite_range+0x5b/0×60
>> Feb 5 02:51:04 mythserv kernel: [] filemap_write_and_wait_range+0x5a/0×80
>> Feb 5 02:51:04 mythserv kernel: [] xfs_file_fsync+0×68/0x2d0 [xfs]
>> Feb 5 02:51:04 mythserv kernel: [] vfs_fsync_range+0x2b/0×40
>> Feb 5 02:51:04 mythserv kernel: [] vfs_fsync+0x1c/0×20
>> Feb 5 02:51:04 mythserv kernel: [] do_fsync+0x3a/0×60
>> Feb 5 02:51:04 mythserv kernel: [] sys_fsync+0×10/0×20
>> Feb 5 02:51:04 mythserv kernel: [] system_call_fastpath+0×16/0x1b
>>
>> Any hints? Or any debugging I can do to help? I did find a similar cas from
>> 2008, but that is supposed to be fixed now.
>> This also started after updating the kernel to the 3.x series. At the moment
>> using 3.2.2 and still seeing it.


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^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2012-02-16 13:43 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-02-05 16:55 Hand in Raid-5 code Dag Nygren
2012-02-09  2:55 ` Hang in Raid-5 code (Old bug back?) Dag Nygren
2012-02-16 13:43   ` Konstantinos Skarlatos

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