xfs blocks (blocked for more than 120 seconds)

Hi,

We have a problem with one of our systems which is using XFS but we are unable to find the problem. Recently we had two moments, Tuesday 4th of March and Friday the 21st of March, where we had to reboot the system to get it up and running again.

What happens:
- The programs handling files on the XFS disc stop working when creating, deleting or writing files. They do not error they are just waiting on the command to complete.
- One of our programs, a java application, goes into very high cpu usage (50%) which normally is at 1%. This could be something in our java application but it happens at the moment handling files gets stuck.
- A nice restart of the programs does not succeed as wel a kill -9 does not work.
- Trying to reboot the servers in a normal fashion does not work. As it is a virtual machine we have to do a shutdown (unplug power) and start it up again to get it up and running.

Following details I have for you:

System OS: Ubuntu 12.04 LTS
Kernel: 3.2.0-37-generic #58-Ubuntu SMP Thu Jan 24 15:28:10 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Server: Virtual machine in a VMWare setup.
Disc: 300GB direct attached LUN

We have an exact clone of this system for our acceptance environment. In this environment we are unable to reproduce this problem/situation.

Differences between the two days is that our services on 2014-03-21 were quit busy with a lot of file changes on the xfs disc and on 2014-03-04 the system was very quiet on the moment the kernel traces appear and the services get stuck.

Any help is appreciated.

Regards Michel Verbraak.

Following we see in the syslog on both moments (2014-03-04 and 2014-03-21):

Mar 21 06:32:20 ealxs00169 kernel: [1412280.930340] INFO: task
flush-8:16:13864 blocked for more than 120 seconds.
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930462] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930543] flush-8:16      D
0000000000000000     0 13864      2 0x00000000
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930549]  ffff88000676f880
0000000000000046 0000000001000000 2500000000000000
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930557]  ffff88000676ffd8
ffff88000676ffd8 ffff88000676ffd8 00000000000137c0
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930560]  ffff880002218000
ffff88001b5d4500 ffff88000676f850 ffff88001fc14080
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930564] Call Trace:
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930584] 
[<ffffffff81118360>] ? __lock_page+0x70/0x70
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930602] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930605] 
[<ffffffff8165b3ff>] io_schedule+0x8f/0xd0
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930608] 
[<ffffffff8111836e>] sleep_on_page+0xe/0x20
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930617] 
[<ffffffff8165baca>] __wait_on_bit_lock+0x5a/0xc0
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930620] 
[<ffffffff81118357>] __lock_page+0x67/0x70
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930626] 
[<ffffffff8108bd60>] ? autoremove_wake_function+0x40/0x40
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930634] 
[<ffffffff81122bd4>] write_cache_pages+0x3d4/0x460
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930638] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930641] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930644] 
[<ffffffff81122caa>] generic_writepages+0x4a/0x70
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930701] 
[<ffffffffa007980d>] xfs_vm_writepages+0x4d/0x60 [xfs]
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930708] 
[<ffffffff81123b71>] do_writepages+0x21/0x40
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930719] 
[<ffffffff811a2990>] writeback_single_inode+0x180/0x430
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930722] 
[<ffffffff811a3056>] writeback_sb_inodes+0x1b6/0x270
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930725] 
[<ffffffff811a31ae>] __writeback_inodes_wb+0x9e/0xd0
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930728] 
[<ffffffff811a345b>] wb_writeback+0x27b/0x330
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930739] 
[<ffffffff810136e5>] ? __switch_to+0xf5/0x360
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930744] 
[<ffffffff81194ad2>] ? get_nr_dirty_inodes+0x52/0x80
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930747] 
[<ffffffff811a35af>] wb_check_old_data_flush+0x9f/0xb0
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930751] 
[<ffffffff811a4481>] wb_do_writeback+0x151/0x1d0
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930757] 
[<ffffffff810778b0>] ? usleep_range+0x50/0x50
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930762] 
[<ffffffff811a4583>] bdi_writeback_thread+0x83/0x2a0
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930765] 
[<ffffffff811a4500>] ? wb_do_writeback+0x1d0/0x1d0
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930768] 
[<ffffffff8108b27c>] kthread+0x8c/0xa0
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930775] 
[<ffffffff816679b4>] kernel_thread_helper+0x4/0x10
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930778] 
[<ffffffff8108b1f0>] ? flush_kthread_worker+0xa0/0xa0
Mar 21 06:32:20 ealxs00169 kernel: [1412280.930781] 
[<ffffffff816679b0>] ? gs_change+0x13/0x13
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891012] INFO: task
archiver.pl:4005 blocked for more than 120 seconds.
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891118] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891181] archiver.pl     D
0000000000000000     0  4005   4004 0x00000000
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891186]  ffff88001bb41718
0000000000000086 ffffffff8142bff0 0000000000000002
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891189]  ffff88001bb41fd8
ffff88001bb41fd8 ffff88001bb41fd8 00000000000137c0
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891192]  ffff88001bad8000
ffff88000602dc00 ffff88001bb41798 7fffffffffffffff
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891195] Call Trace:
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891223] 
[<ffffffff8142bff0>] ? scsi_mode_select+0x200/0x200
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891227] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891229] 
[<ffffffff8165b995>] schedule_timeout+0x2a5/0x320
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891234] 
[<ffffffff8165c5f0>] __down_common+0xa5/0xf5
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891291] 
[<ffffffffa007c295>] ? _xfs_buf_find+0xd5/0x240 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891294] 
[<ffffffff8165c6b3>] __down+0x1d/0x1f
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891301] 
[<ffffffff810912e1>] down+0x41/0x50
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891314] 
[<ffffffffa007c0f4>] xfs_buf_lock+0x44/0x110 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891324] 
[<ffffffffa007c295>] _xfs_buf_find+0xd5/0x240 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891335] 
[<ffffffffa007c684>] xfs_buf_get+0x34/0x1c0 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891345] 
[<ffffffffa007cf2d>] xfs_buf_read+0x2d/0x120 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891373] 
[<ffffffffa00d89ff>] xfs_trans_read_buf+0x2bf/0x470 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891386] 
[<ffffffffa0094775>] xfs_read_agf+0x65/0x1a0 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891399] 
[<ffffffffa00948e2>] xfs_alloc_read_agf+0x32/0x60 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891411] 
[<ffffffffa00966ff>] xfs_alloc_fix_freelist+0x42f/0x490 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891418] 
[<ffffffff8116371b>] ? kfree+0x3b/0x140
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891421] 
[<ffffffff8116355f>] ? kmem_cache_free+0x2f/0x110
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891432] 
[<ffffffff8131214b>] ? radix_tree_lookup+0xb/0x10
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891447] 
[<ffffffffa00cb2f8>] ? xfs_perag_get+0x38/0xd0 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891460] 
[<ffffffffa00967f1>] ? xfs_free_extent+0x91/0x120 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891473] 
[<ffffffffa0096802>] xfs_free_extent+0xa2/0x120 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891486] 
[<ffffffffa00a6e14>] xfs_bmap_finish+0x164/0x1b0 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891501] 
[<ffffffffa00c143b>] xfs_itruncate_extents+0xdb/0x1e0 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891516] 
[<ffffffffa00c15a6>] xfs_itruncate_data+0x66/0x150 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891529] 
[<ffffffffa009056e>] xfs_inactive+0x2fe/0x460 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891532] 
[<ffffffff8165d545>] ? _raw_spin_lock_irq+0x15/0x20
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891543] 
[<ffffffffa008afad>] xfs_fs_evict_inode+0xad/0x110 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891547] 
[<ffffffff81193e98>] evict+0xb8/0x1c0
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891550] 
[<ffffffff81194088>] iput_final+0xe8/0x210
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891552] 
[<ffffffff811941ee>] iput+0x3e/0x50
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891555] 
[<ffffffff81188be3>] do_unlinkat+0x153/0x1d0
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891561] 
[<ffffffff8117974d>] ? vfs_read+0x10d/0x180
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891564] 
[<ffffffff811897b6>] sys_unlink+0x16/0x20
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891568] 
[<ffffffff81665842>] system_call_fastpath+0x16/0x1b
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891571] INFO: task
flush-8:16:13864 blocked for more than 120 seconds.
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891626] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891686] flush-8:16      D
0000000000000000     0 13864      2 0x00000000
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891689]  ffff88000676f880
0000000000000046 0000000001000000 2500000000000000
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891692]  ffff88000676ffd8
ffff88000676ffd8 ffff88000676ffd8 00000000000137c0
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891694]  ffff880002218000
ffff88001b5d4500 ffff88000676f850 ffff88001fc14080
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891697] Call Trace:
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891702] 
[<ffffffff81118360>] ? __lock_page+0x70/0x70
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891704] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891710] 
[<ffffffff8165b3ff>] io_schedule+0x8f/0xd0
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891712] 
[<ffffffff8111836e>] sleep_on_page+0xe/0x20
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891714] 
[<ffffffff8165baca>] __wait_on_bit_lock+0x5a/0xc0
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891717] 
[<ffffffff81118357>] __lock_page+0x67/0x70
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891720] 
[<ffffffff8108bd60>] ? autoremove_wake_function+0x40/0x40
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891725] 
[<ffffffff81122bd4>] write_cache_pages+0x3d4/0x460
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891727] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891730] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891732] 
[<ffffffff81122caa>] generic_writepages+0x4a/0x70
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891742] 
[<ffffffffa007980d>] xfs_vm_writepages+0x4d/0x60 [xfs]
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891745] 
[<ffffffff81123b71>] do_writepages+0x21/0x40
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891749] 
[<ffffffff811a2990>] writeback_single_inode+0x180/0x430
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891751] 
[<ffffffff811a3056>] writeback_sb_inodes+0x1b6/0x270
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891754] 
[<ffffffff811a31ae>] __writeback_inodes_wb+0x9e/0xd0
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891756] 
[<ffffffff811a345b>] wb_writeback+0x27b/0x330
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891760] 
[<ffffffff810136e5>] ? __switch_to+0xf5/0x360
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891763] 
[<ffffffff81194ad2>] ? get_nr_dirty_inodes+0x52/0x80
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891765] 
[<ffffffff811a35af>] wb_check_old_data_flush+0x9f/0xb0
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891768] 
[<ffffffff811a4481>] wb_do_writeback+0x151/0x1d0
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891772] 
[<ffffffff810778b0>] ? usleep_range+0x50/0x50
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891774] 
[<ffffffff811a4583>] bdi_writeback_thread+0x83/0x2a0
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891777] 
[<ffffffff811a4500>] ? wb_do_writeback+0x1d0/0x1d0
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891779] 
[<ffffffff8108b27c>] kthread+0x8c/0xa0
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891782] 
[<ffffffff816679b4>] kernel_thread_helper+0x4/0x10
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891784] 
[<ffffffff8108b1f0>] ? flush_kthread_worker+0xa0/0xa0
Mar 21 06:34:20 ealxs00169 kernel: [1412400.891787] 
[<ffffffff816679b0>] ? gs_change+0x13/0x13
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861122] INFO: task
java:14629 blocked for more than 120 seconds.
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861204] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861471] java            D
0000000000000000     0 14629   1788 0x00000000
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861476]  ffff8800028e9328
0000000000000086 0000000000000100 0000000000000100
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861481]  ffff8800028e9fd8
ffff8800028e9fd8 ffff8800028e9fd8 00000000000137c0
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861483]  ffff88001a9a4500
ffff88001b5e8000 ffff8800028e9308 7fffffffffffffff
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861487] Call Trace:
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861500] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861502] 
[<ffffffff8165b995>] schedule_timeout+0x2a5/0x320
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861514] 
[<ffffffff8101aef2>] ? nommu_map_sg+0x72/0xe0
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861522] 
[<ffffffff8142bff0>] ? scsi_mode_select+0x200/0x200
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861526] 
[<ffffffff8165c5f0>] __down_common+0xa5/0xf5
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861581] 
[<ffffffffa007c295>] ? _xfs_buf_find+0xd5/0x240 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861583] 
[<ffffffff8165c6b3>] __down+0x1d/0x1f
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861588] 
[<ffffffff810912e1>] down+0x41/0x50
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861598] 
[<ffffffffa007c0f4>] xfs_buf_lock+0x44/0x110 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861608] 
[<ffffffffa007c295>] _xfs_buf_find+0xd5/0x240 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861618] 
[<ffffffffa007c684>] xfs_buf_get+0x34/0x1c0 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861626] 
[<ffffffff8105702d>] ? set_next_entity+0xad/0xd0
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861637] 
[<ffffffffa007cf2d>] xfs_buf_read+0x2d/0x120 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861656] 
[<ffffffffa00d89ff>] xfs_trans_read_buf+0x2bf/0x470 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861670] 
[<ffffffffa0094775>] xfs_read_agf+0x65/0x1a0 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861684] 
[<ffffffffa00a0c93>] ? xfs_bmap_add_extent_hole_delay+0xd3/0x6b0 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861697] 
[<ffffffffa00948e2>] xfs_alloc_read_agf+0x32/0x60 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861711] 
[<ffffffffa00966ff>] xfs_alloc_fix_freelist+0x42f/0x490 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861725] 
[<ffffffffa00aa368>] ? xfs_bmbt_get_all+0x18/0x20 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861730] 
[<ffffffff8131214b>] ? radix_tree_lookup+0xb/0x10
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861732] 
[<ffffffff8131214b>] ? radix_tree_lookup+0xb/0x10
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861748] 
[<ffffffffa00cb2f8>] ? xfs_perag_get+0x38/0xd0 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861762] 
[<ffffffffa009fe23>] ? xfs_bmap_btalloc_nullfb+0x193/0x380 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861776] 
[<ffffffffa0096b6c>] ? xfs_alloc_vextent+0x2ec/0x690 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861792] 
[<ffffffffa0096a4b>] xfs_alloc_vextent+0x1cb/0x690 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861806] 
[<ffffffffa00a02c1>] xfs_bmap_btalloc+0x2b1/0x770 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861821] 
[<ffffffffa00c21dc>] ? xfs_iext_bno_to_ext+0x8c/0x160 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861836] 
[<ffffffffa00a07a4>] xfs_bmap_alloc+0x24/0x40 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861849] 
[<ffffffffa00a594e>] xfs_bmapi_allocate+0xce/0x2d0 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861864] 
[<ffffffffa00a85c3>] xfs_bmapi_write+0x4c3/0x720 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861876] 
[<ffffffffa0086988>] xfs_iomap_write_allocate+0x178/0x330 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861886] 
[<ffffffffa00799c3>] xfs_map_blocks+0x183/0x250 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861895] 
[<ffffffffa007aa56>] xfs_vm_writepage+0x196/0x510 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861901] 
[<ffffffff81122217>] __writepage+0x17/0x40
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861903] 
[<ffffffff81122a0d>] write_cache_pages+0x20d/0x460
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861922] 
[<ffffffff8152ba7d>] ? sock_recvmsg+0x11d/0x140
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861925] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861935] 
[<ffffffffa00804bc>] ? xfs_file_aio_write+0x25c/0x2a0 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861938] 
[<ffffffff81122caa>] generic_writepages+0x4a/0x70
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861948] 
[<ffffffffa007980d>] xfs_vm_writepages+0x4d/0x60 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861951] 
[<ffffffff81123b71>] do_writepages+0x21/0x40
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861955] 
[<ffffffff81119f2b>] __filemap_fdatawrite_range+0x5b/0x60
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861958] 
[<ffffffff81119f82>] filemap_write_and_wait_range+0x52/0x80
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861968] 
[<ffffffffa007f05d>] xfs_file_fsync+0x5d/0x300 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861972] 
[<ffffffff8118c985>] ? poll_select_set_timeout+0x85/0xa0
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861977] 
[<ffffffff811a7eb6>] do_fsync+0x56/0x80
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861979] 
[<ffffffff811a81e0>] sys_fsync+0x10/0x20
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861983] 
[<ffffffff81665842>] system_call_fastpath+0x16/0x1b
Mar 21 06:36:20 ealxs00169 kernel: [1412520.861989] INFO: task
archiver.pl:4005 blocked for more than 120 seconds.
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862047] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862112] archiver.pl     D
0000000000000000     0  4005   4004 0x00000000
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862115]  ffff88001bb41718
0000000000000086 ffffffff8142bff0 0000000000000002
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862118]  ffff88001bb41fd8
ffff88001bb41fd8 ffff88001bb41fd8 00000000000137c0
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862121]  ffff88001bad8000
ffff88000602dc00 ffff88001bb41798 7fffffffffffffff
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862123] Call Trace:
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862126] 
[<ffffffff8142bff0>] ? scsi_mode_select+0x200/0x200
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862133] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862135] 
[<ffffffff8165b995>] schedule_timeout+0x2a5/0x320
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862138] 
[<ffffffff8165c5f0>] __down_common+0xa5/0xf5
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862149] 
[<ffffffffa007c295>] ? _xfs_buf_find+0xd5/0x240 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862151] 
[<ffffffff8165c6b3>] __down+0x1d/0x1f
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862154] 
[<ffffffff810912e1>] down+0x41/0x50
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862164] 
[<ffffffffa007c0f4>] xfs_buf_lock+0x44/0x110 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862173] 
[<ffffffffa007c295>] _xfs_buf_find+0xd5/0x240 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862183] 
[<ffffffffa007c684>] xfs_buf_get+0x34/0x1c0 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862193] 
[<ffffffffa007cf2d>] xfs_buf_read+0x2d/0x120 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862210] 
[<ffffffffa00d89ff>] xfs_trans_read_buf+0x2bf/0x470 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862223] 
[<ffffffffa0094775>] xfs_read_agf+0x65/0x1a0 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862236] 
[<ffffffffa00948e2>] xfs_alloc_read_agf+0x32/0x60 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862250] 
[<ffffffffa00966ff>] xfs_alloc_fix_freelist+0x42f/0x490 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862255] 
[<ffffffff8116371b>] ? kfree+0x3b/0x140
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862258] 
[<ffffffff8116355f>] ? kmem_cache_free+0x2f/0x110
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862260] 
[<ffffffff8131214b>] ? radix_tree_lookup+0xb/0x10
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862277] 
[<ffffffffa00cb2f8>] ? xfs_perag_get+0x38/0xd0 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862290] 
[<ffffffffa00967f1>] ? xfs_free_extent+0x91/0x120 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862303] 
[<ffffffffa0096802>] xfs_free_extent+0xa2/0x120 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862317] 
[<ffffffffa00a6e14>] xfs_bmap_finish+0x164/0x1b0 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862333] 
[<ffffffffa00c143b>] xfs_itruncate_extents+0xdb/0x1e0 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862349] 
[<ffffffffa00c15a6>] xfs_itruncate_data+0x66/0x150 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862365] 
[<ffffffffa009056e>] xfs_inactive+0x2fe/0x460 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862368] 
[<ffffffff8165d545>] ? _raw_spin_lock_irq+0x15/0x20
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862380] 
[<ffffffffa008afad>] xfs_fs_evict_inode+0xad/0x110 [xfs]
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862385] 
[<ffffffff81193e98>] evict+0xb8/0x1c0
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862387] 
[<ffffffff81194088>] iput_final+0xe8/0x210
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862389] 
[<ffffffff811941ee>] iput+0x3e/0x50
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862392] 
[<ffffffff81188be3>] do_unlinkat+0x153/0x1d0
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862396] 
[<ffffffff8117974d>] ? vfs_read+0x10d/0x180
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862399] 
[<ffffffff811897b6>] sys_unlink+0x16/0x20
Mar 21 06:36:20 ealxs00169 kernel: [1412520.862401] 
[<ffffffff81665842>] system_call_fastpath+0x16/0x1b
Mar 21 06:38:20 ealxs00169 kernel: [1412640.820901] INFO: task java:1804
blocked for more than 120 seconds.
Mar 21 06:38:20 ealxs00169 kernel: [1412640.820972] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821037] java            D
0000000000000000     0  1804   1788 0x00000000
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821042]  ffff88001b4b3de8
0000000000000086 ffff88001b4b3da8 ffffffffa008d944
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821045]  ffff88001b4b3fd8
ffff88001b4b3fd8 ffff88001b4b3fd8 00000000000137c0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821048]  ffff88001a749700
ffff88001c61ae00 0000000000000000 ffff8800002f38a0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821051] Call Trace:
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821116] 
[<ffffffffa008d944>] ? xfs_inode_set_reclaim_tag+0x84/0xa0 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821122] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821126] 
[<ffffffff8165c157>] __mutex_lock_slowpath+0xd7/0x150
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821131] 
[<ffffffff81188731>] ? do_path_lookup+0x31/0xc0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821134] 
[<ffffffff8165bd6a>] mutex_lock+0x2a/0x50
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821136] 
[<ffffffff81188b1e>] do_unlinkat+0x8e/0x1d0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821140] 
[<ffffffff8118c985>] ? poll_select_set_timeout+0x85/0xa0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821145] 
[<ffffffff81015721>] ? math_state_restore+0x51/0x80
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821148] 
[<ffffffff811897b6>] sys_unlink+0x16/0x20
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821152] 
[<ffffffff81665842>] system_call_fastpath+0x16/0x1b
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821154] INFO: task java:1805
blocked for more than 120 seconds.
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821207] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821301] java            D
0000000000000000     0  1805   1788 0x00000000
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821309]  ffff88001f4a17e8
0000000000000086 0000000000000000 ffff88001f5f1410
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821312]  ffff88001f4a1fd8
ffff88001f4a1fd8 ffff88001f4a1fd8 00000000000137c0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821314]  ffff88001bad8000
ffff88001c61dc00 000000000000003a 7fffffffffffffff
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821317] Call Trace:
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821320] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821322] 
[<ffffffff8165b995>] schedule_timeout+0x2a5/0x320
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821327] 
[<ffffffff81165a1d>] ? kmem_cache_alloc+0x11d/0x140
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821342] 
[<ffffffffa00927b7>] ? kmem_zone_alloc+0x67/0xe0 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821345] 
[<ffffffff8165c5f0>] __down_common+0xa5/0xf5
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821355] 
[<ffffffffa007c295>] ? _xfs_buf_find+0xd5/0x240 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821358] 
[<ffffffff8165c6b3>] __down+0x1d/0x1f
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821362] 
[<ffffffff810912e1>] down+0x41/0x50
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821372] 
[<ffffffffa007c0f4>] xfs_buf_lock+0x44/0x110 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821382] 
[<ffffffffa007c295>] _xfs_buf_find+0xd5/0x240 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821392] 
[<ffffffffa007c684>] xfs_buf_get+0x34/0x1c0 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821402] 
[<ffffffffa007cf2d>] xfs_buf_read+0x2d/0x120 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821420] 
[<ffffffffa00d89ff>] xfs_trans_read_buf+0x2bf/0x470 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821434] 
[<ffffffffa0094775>] xfs_read_agf+0x65/0x1a0 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821446] 
[<ffffffffa00925e7>] ? kmem_alloc+0x67/0xe0 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821459] 
[<ffffffffa00948e2>] xfs_alloc_read_agf+0x32/0x60 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821473] 
[<ffffffffa00966ff>] xfs_alloc_fix_freelist+0x42f/0x490 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821483] 
[<ffffffffa007c42d>] ? xfs_buf_unlock+0x2d/0xa0 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821487] 
[<ffffffff8116355f>] ? kmem_cache_free+0x2f/0x110
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821491] 
[<ffffffff8131214b>] ? radix_tree_lookup+0xb/0x10
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821508] 
[<ffffffffa00cb2f8>] ? xfs_perag_get+0x38/0xd0 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821521] 
[<ffffffffa00967f1>] ? xfs_free_extent+0x91/0x120 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821539] 
[<ffffffffa0096802>] xfs_free_extent+0xa2/0x120 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821553] 
[<ffffffffa00a6e14>] xfs_bmap_finish+0x164/0x1b0 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821566] 
[<ffffffffa00914c1>] xfs_remove+0x351/0x400 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821569] 
[<ffffffff8165d25e>] ? _raw_spin_lock+0xe/0x20
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821580] 
[<ffffffffa0087378>] xfs_vn_unlink+0x48/0x90 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821583] 
[<ffffffff81186520>] vfs_unlink.part.26+0x80/0xf0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821585] 
[<ffffffff811865cc>] vfs_unlink+0x3c/0x60
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821587] 
[<ffffffff81188c3a>] do_unlinkat+0x1aa/0x1d0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821590] 
[<ffffffff8118c985>] ? poll_select_set_timeout+0x85/0xa0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821593] 
[<ffffffff81015721>] ? math_state_restore+0x51/0x80
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821595] 
[<ffffffff811897b6>] sys_unlink+0x16/0x20
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821598] 
[<ffffffff81665842>] system_call_fastpath+0x16/0x1b
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821600] INFO: task java:1806
blocked for more than 120 seconds.
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821668] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821760] java            D
0000000000000000     0  1806   1788 0x00000000
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821767]  ffff88001f741de8
0000000000000086 ffff88001f741da8 ffffffffa008d944
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821770]  ffff88001f741fd8
ffff88001f741fd8 ffff88001f741fd8 00000000000137c0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821772]  ffff88001c61ae00
ffff88001b9adc00 0000000000000000 ffff8800002f38a0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821775] Call Trace:
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821788] 
[<ffffffffa008d944>] ? xfs_inode_set_reclaim_tag+0x84/0xa0 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821790] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821793] 
[<ffffffff8165c157>] __mutex_lock_slowpath+0xd7/0x150
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821795] 
[<ffffffff81188731>] ? do_path_lookup+0x31/0xc0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821797] 
[<ffffffff8165bd6a>] mutex_lock+0x2a/0x50
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821799] 
[<ffffffff81188b1e>] do_unlinkat+0x8e/0x1d0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821802] 
[<ffffffff8118c985>] ? poll_select_set_timeout+0x85/0xa0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821805] 
[<ffffffff81015721>] ? math_state_restore+0x51/0x80
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821807] 
[<ffffffff811897b6>] sys_unlink+0x16/0x20
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821809] 
[<ffffffff81665842>] system_call_fastpath+0x16/0x1b
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821812] INFO: task java:1807
blocked for more than 120 seconds.
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821878] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821971] java            D
0000000000000000     0  1807   1788 0x00000000
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821977]  ffff88001f7fdde8
0000000000000086 ffff88001f7fdda8 ffffffffa008d944
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821980]  ffff88001f7fdfd8
ffff88001f7fdfd8 ffff88001f7fdfd8 00000000000137c0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821983]  ffff88001b9adc00
ffff88001b9a8000 0000000000000000 ffff8800002f38a0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821985] Call Trace:
Mar 21 06:38:20 ealxs00169 kernel: [1412640.821998] 
[<ffffffffa008d944>] ? xfs_inode_set_reclaim_tag+0x84/0xa0 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822001] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822003] 
[<ffffffff8165c157>] __mutex_lock_slowpath+0xd7/0x150
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822005] 
[<ffffffff81188731>] ? do_path_lookup+0x31/0xc0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822007] 
[<ffffffff8165bd6a>] mutex_lock+0x2a/0x50
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822010] 
[<ffffffff81188b1e>] do_unlinkat+0x8e/0x1d0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822012] 
[<ffffffff8118c985>] ? poll_select_set_timeout+0x85/0xa0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822015] 
[<ffffffff81015721>] ? math_state_restore+0x51/0x80
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822017] 
[<ffffffff811897b6>] sys_unlink+0x16/0x20
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822020] 
[<ffffffff81665842>] system_call_fastpath+0x16/0x1b
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822022] INFO: task
java:14629 blocked for more than 120 seconds.
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822090] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822183] java            D
0000000000000000     0 14629   1788 0x00000000
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822186]  ffff8800028e9328
0000000000000086 0000000000000100 0000000000000100
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822189]  ffff8800028e9fd8
ffff8800028e9fd8 ffff8800028e9fd8 00000000000137c0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822191]  ffff88001a9a4500
ffff88001b5e8000 ffff8800028e9308 7fffffffffffffff
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822194] Call Trace:
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822196] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822199] 
[<ffffffff8165b995>] schedule_timeout+0x2a5/0x320
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822203] 
[<ffffffff8101aef2>] ? nommu_map_sg+0x72/0xe0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822216] 
[<ffffffff8142bff0>] ? scsi_mode_select+0x200/0x200
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822220] 
[<ffffffff8165c5f0>] __down_common+0xa5/0xf5
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822234] 
[<ffffffffa007c295>] ? _xfs_buf_find+0xd5/0x240 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822237] 
[<ffffffff8165c6b3>] __down+0x1d/0x1f
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822241] 
[<ffffffff810912e1>] down+0x41/0x50
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822252] 
[<ffffffffa007c0f4>] xfs_buf_lock+0x44/0x110 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822262] 
[<ffffffffa007c295>] _xfs_buf_find+0xd5/0x240 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822272] 
[<ffffffffa007c684>] xfs_buf_get+0x34/0x1c0 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822276] 
[<ffffffff8105702d>] ? set_next_entity+0xad/0xd0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822285] 
[<ffffffffa007cf2d>] xfs_buf_read+0x2d/0x120 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822302] 
[<ffffffffa00d89ff>] xfs_trans_read_buf+0x2bf/0x470 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822315] 
[<ffffffffa0094775>] xfs_read_agf+0x65/0x1a0 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822329] 
[<ffffffffa00a0c93>] ? xfs_bmap_add_extent_hole_delay+0xd3/0x6b0 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822342] 
[<ffffffffa00948e2>] xfs_alloc_read_agf+0x32/0x60 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822355] 
[<ffffffffa00966ff>] xfs_alloc_fix_freelist+0x42f/0x490 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822369] 
[<ffffffffa00aa368>] ? xfs_bmbt_get_all+0x18/0x20 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822372] 
[<ffffffff8131214b>] ? radix_tree_lookup+0xb/0x10
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822374] 
[<ffffffff8131214b>] ? radix_tree_lookup+0xb/0x10
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822390] 
[<ffffffffa00cb2f8>] ? xfs_perag_get+0x38/0xd0 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822403] 
[<ffffffffa009fe23>] ? xfs_bmap_btalloc_nullfb+0x193/0x380 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822417] 
[<ffffffffa0096b6c>] ? xfs_alloc_vextent+0x2ec/0x690 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822430] 
[<ffffffffa0096a4b>] xfs_alloc_vextent+0x1cb/0x690 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822443] 
[<ffffffffa00a02c1>] xfs_bmap_btalloc+0x2b1/0x770 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822459] 
[<ffffffffa00c21dc>] ? xfs_iext_bno_to_ext+0x8c/0x160 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822473] 
[<ffffffffa00a07a4>] xfs_bmap_alloc+0x24/0x40 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822486] 
[<ffffffffa00a594e>] xfs_bmapi_allocate+0xce/0x2d0 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822500] 
[<ffffffffa00a85c3>] xfs_bmapi_write+0x4c3/0x720 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822512] 
[<ffffffffa0086988>] xfs_iomap_write_allocate+0x178/0x330 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822522] 
[<ffffffffa00799c3>] xfs_map_blocks+0x183/0x250 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822531] 
[<ffffffffa007aa56>] xfs_vm_writepage+0x196/0x510 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822536] 
[<ffffffff81122217>] __writepage+0x17/0x40
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822538] 
[<ffffffff81122a0d>] write_cache_pages+0x20d/0x460
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822542] 
[<ffffffff8152ba7d>] ? sock_recvmsg+0x11d/0x140
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822544] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822554] 
[<ffffffffa00804bc>] ? xfs_file_aio_write+0x25c/0x2a0 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822557] 
[<ffffffff81122caa>] generic_writepages+0x4a/0x70
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822566] 
[<ffffffffa007980d>] xfs_vm_writepages+0x4d/0x60 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822569] 
[<ffffffff81123b71>] do_writepages+0x21/0x40
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822573] 
[<ffffffff81119f2b>] __filemap_fdatawrite_range+0x5b/0x60
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822575] 
[<ffffffff81119f82>] filemap_write_and_wait_range+0x52/0x80
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822585] 
[<ffffffffa007f05d>] xfs_file_fsync+0x5d/0x300 [xfs]
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822588] 
[<ffffffff8118c985>] ? poll_select_set_timeout+0x85/0xa0
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822593] 
[<ffffffff811a7eb6>] do_fsync+0x56/0x80
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822595] 
[<ffffffff811a81e0>] sys_fsync+0x10/0x20
Mar 21 06:38:20 ealxs00169 kernel: [1412640.822597] 

[<ffffffff81665842>] system_call_fastpath+0x16/0x1b

Mar  4 19:39:25 ealxs00169 kernel: [34229278.392177] INFO: task
flush-8:16:20760 blocked for more than 120 seconds.
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392400] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392474] flush-8:16      D
0000000000000000     0 20760      2 0x00000000
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392478]  ffff8800148af880
0000000000000046 ffff8800148afbf0 0000000000000000
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392487]  ffff8800148affd8
ffff8800148affd8 ffff8800148affd8 00000000000137c0
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392489]  ffff8800022a4500
ffff8800022a1700 ffff8800148af850 ffff88001fc14080
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392492] Call Trace:
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392510] 
[<ffffffff81118360>] ? __lock_page+0x70/0x70
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392523] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392526] 
[<ffffffff8165b3ff>] io_schedule+0x8f/0xd0
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392528] 
[<ffffffff8111836e>] sleep_on_page+0xe/0x20
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392536] 
[<ffffffff8165baca>] __wait_on_bit_lock+0x5a/0xc0
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392539] 
[<ffffffff81118357>] __lock_page+0x67/0x70
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392544] 
[<ffffffff8108bd60>] ? autoremove_wake_function+0x40/0x40
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392551] 
[<ffffffff81122bd4>] write_cache_pages+0x3d4/0x460
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392554] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392556] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392559] 
[<ffffffff81122caa>] generic_writepages+0x4a/0x70
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392621] 
[<ffffffffa008d80d>] xfs_vm_writepages+0x4d/0x60 [xfs]
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392627] 
[<ffffffff81123b71>] do_writepages+0x21/0x40
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392636] 
[<ffffffff811a2990>] writeback_single_inode+0x180/0x430
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392639] 
[<ffffffff811a3056>] writeback_sb_inodes+0x1b6/0x270
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392641] 
[<ffffffff811a31ae>] __writeback_inodes_wb+0x9e/0xd0
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392644] 
[<ffffffff811a345b>] wb_writeback+0x27b/0x330
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392654] 
[<ffffffff810136e5>] ? __switch_to+0xf5/0x360
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392658] 
[<ffffffff81194ad2>] ? get_nr_dirty_inodes+0x52/0x80
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392661] 
[<ffffffff811a35af>] wb_check_old_data_flush+0x9f/0xb0
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392664] 
[<ffffffff811a4481>] wb_do_writeback+0x151/0x1d0
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392669] 
[<ffffffff810778b0>] ? usleep_range+0x50/0x50
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392671] 
[<ffffffff811a4583>] bdi_writeback_thread+0x83/0x2a0
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392674] 
[<ffffffff811a4500>] ? wb_do_writeback+0x1d0/0x1d0
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392676] 
[<ffffffff8108b27c>] kthread+0x8c/0xa0
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392682] 
[<ffffffff816679b4>] kernel_thread_helper+0x4/0x10
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392685] 
[<ffffffff8108b1f0>] ? flush_kthread_worker+0xa0/0xa0
Mar  4 19:39:25 ealxs00169 kernel: [34229278.392687] 
[<ffffffff816679b0>] ? gs_change+0x13/0x13
Mar  4 19:41:25 ealxs00169 kernel: [34229398.350796] INFO: task
flush-8:16:20760 blocked for more than 120 seconds.
Mar  4 19:41:25 ealxs00169 kernel: [34229398.350923] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar  4 19:41:25 ealxs00169 kernel: [34229398.350987] flush-8:16      D
0000000000000000     0 20760      2 0x00000000
Mar  4 19:41:25 ealxs00169 kernel: [34229398.350991]  ffff8800148af880
0000000000000046 ffff8800148afbf0 0000000000000000
Mar  4 19:41:25 ealxs00169 kernel: [34229398.350995]  ffff8800148affd8
ffff8800148affd8 ffff8800148affd8 00000000000137c0
Mar  4 19:41:25 ealxs00169 kernel: [34229398.350998]  ffff8800022a4500
ffff8800022a1700 ffff8800148af850 ffff88001fc14080
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351001] Call Trace:
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351017] 
[<ffffffff81118360>] ? __lock_page+0x70/0x70
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351022] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351024] 
[<ffffffff8165b3ff>] io_schedule+0x8f/0xd0
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351027] 
[<ffffffff8111836e>] sleep_on_page+0xe/0x20
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351030] 
[<ffffffff8165baca>] __wait_on_bit_lock+0x5a/0xc0
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351033] 
[<ffffffff81118357>] __lock_page+0x67/0x70
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351039] 
[<ffffffff8108bd60>] ? autoremove_wake_function+0x40/0x40
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351044] 
[<ffffffff81122bd4>] write_cache_pages+0x3d4/0x460
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351047] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351049] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351052] 
[<ffffffff81122caa>] generic_writepages+0x4a/0x70
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351093] 
[<ffffffffa008d80d>] xfs_vm_writepages+0x4d/0x60 [xfs]
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351096] 
[<ffffffff81123b71>] do_writepages+0x21/0x40
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351101] 
[<ffffffff811a2990>] writeback_single_inode+0x180/0x430
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351104] 
[<ffffffff811a3056>] writeback_sb_inodes+0x1b6/0x270
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351106] 
[<ffffffff811a31ae>] __writeback_inodes_wb+0x9e/0xd0
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351109] 
[<ffffffff811a345b>] wb_writeback+0x27b/0x330
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351113] 
[<ffffffff810136e5>] ? __switch_to+0xf5/0x360
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351117] 
[<ffffffff81194ad2>] ? get_nr_dirty_inodes+0x52/0x80
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351120] 
[<ffffffff811a35af>] wb_check_old_data_flush+0x9f/0xb0
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351123] 
[<ffffffff811a4481>] wb_do_writeback+0x151/0x1d0
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351128] 
[<ffffffff810778b0>] ? usleep_range+0x50/0x50
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351130] 
[<ffffffff811a4583>] bdi_writeback_thread+0x83/0x2a0
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351133] 
[<ffffffff811a4500>] ? wb_do_writeback+0x1d0/0x1d0
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351135] 
[<ffffffff8108b27c>] kthread+0x8c/0xa0
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351140] 
[<ffffffff816679b4>] kernel_thread_helper+0x4/0x10
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351142] 
[<ffffffff8108b1f0>] ? flush_kthread_worker+0xa0/0xa0
Mar  4 19:41:25 ealxs00169 kernel: [34229398.351145] 
[<ffffffff816679b0>] ? gs_change+0x13/0x13
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317264] INFO: task
flush-8:16:20760 blocked for more than 120 seconds.
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317367] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317436] flush-8:16      D
0000000000000000     0 20760      2 0x00000000
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317443]  ffff8800148af880
0000000000000046 ffff8800148afbf0 0000000000000000
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317447]  ffff8800148affd8
ffff8800148affd8 ffff8800148affd8 00000000000137c0
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317450]  ffff8800022a4500
ffff8800022a1700 ffff8800148af850 ffff88001fc14080
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317453] Call Trace:
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317467] 
[<ffffffff81118360>] ? __lock_page+0x70/0x70
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317472] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317474] 
[<ffffffff8165b3ff>] io_schedule+0x8f/0xd0
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317477] 
[<ffffffff8111836e>] sleep_on_page+0xe/0x20
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317480] 
[<ffffffff8165baca>] __wait_on_bit_lock+0x5a/0xc0
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317483] 
[<ffffffff81118357>] __lock_page+0x67/0x70
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317488] 
[<ffffffff8108bd60>] ? autoremove_wake_function+0x40/0x40
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317493] 
[<ffffffff81122bd4>] write_cache_pages+0x3d4/0x460
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317496] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317498] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317501] 
[<ffffffff81122caa>] generic_writepages+0x4a/0x70
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317596] 
[<ffffffffa008d80d>] xfs_vm_writepages+0x4d/0x60 [xfs]
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317600] 
[<ffffffff81123b71>] do_writepages+0x21/0x40
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317606] 
[<ffffffff811a2990>] writeback_single_inode+0x180/0x430
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317609] 
[<ffffffff811a3056>] writeback_sb_inodes+0x1b6/0x270
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317611] 
[<ffffffff811a31ae>] __writeback_inodes_wb+0x9e/0xd0
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317614] 
[<ffffffff811a345b>] wb_writeback+0x27b/0x330
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317620] 
[<ffffffff810136e5>] ? __switch_to+0xf5/0x360
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317624] 
[<ffffffff81194ad2>] ? get_nr_dirty_inodes+0x52/0x80
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317627] 
[<ffffffff811a35af>] wb_check_old_data_flush+0x9f/0xb0
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317630] 
[<ffffffff811a4481>] wb_do_writeback+0x151/0x1d0
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317648] 
[<ffffffff810778b0>] ? usleep_range+0x50/0x50
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317651] 
[<ffffffff811a4583>] bdi_writeback_thread+0x83/0x2a0
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317654] 
[<ffffffff811a4500>] ? wb_do_writeback+0x1d0/0x1d0
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317657] 
[<ffffffff8108b27c>] kthread+0x8c/0xa0
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317661] 
[<ffffffff816679b4>] kernel_thread_helper+0x4/0x10
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317664] 
[<ffffffff8108b1f0>] ? flush_kthread_worker+0xa0/0xa0
Mar  4 19:43:25 ealxs00169 kernel: [34229518.317666] 
[<ffffffff816679b0>] ? gs_change+0x13/0x13
Mar  4 19:45:25 ealxs00169 kernel: [34229638.275799] INFO: task
flush-8:16:20760 blocked for more than 120 seconds.
Mar  4 19:45:25 ealxs00169 kernel: [34229638.275894] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar  4 19:45:25 ealxs00169 kernel: [34229638.275957] flush-8:16      D
0000000000000000     0 20760      2 0x00000000
Mar  4 19:45:25 ealxs00169 kernel: [34229638.275962]  ffff8800148af880
0000000000000046 ffff8800148afbf0 0000000000000000
Mar  4 19:45:25 ealxs00169 kernel: [34229638.275969]  ffff8800148affd8
ffff8800148affd8 ffff8800148affd8 00000000000137c0
Mar  4 19:45:25 ealxs00169 kernel: [34229638.275971]  ffff8800022a4500
ffff8800022a1700 ffff8800148af850 ffff88001fc14080
Mar  4 19:45:25 ealxs00169 kernel: [34229638.275975] Call Trace:
Mar  4 19:45:25 ealxs00169 kernel: [34229638.275993] 
[<ffffffff81118360>] ? __lock_page+0x70/0x70
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276006] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276008] 
[<ffffffff8165b3ff>] io_schedule+0x8f/0xd0
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276011] 
[<ffffffff8111836e>] sleep_on_page+0xe/0x20
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276018] 
[<ffffffff8165baca>] __wait_on_bit_lock+0x5a/0xc0
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276021] 
[<ffffffff81118357>] __lock_page+0x67/0x70
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276029] 
[<ffffffff8108bd60>] ? autoremove_wake_function+0x40/0x40
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276036] 
[<ffffffff81122bd4>] write_cache_pages+0x3d4/0x460
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276039] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276042] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276044] 
[<ffffffff81122caa>] generic_writepages+0x4a/0x70
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276084] 
[<ffffffffa008d80d>] xfs_vm_writepages+0x4d/0x60 [xfs]
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276090] 
[<ffffffff81123b71>] do_writepages+0x21/0x40
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276099] 
[<ffffffff811a2990>] writeback_single_inode+0x180/0x430
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276102] 
[<ffffffff811a3056>] writeback_sb_inodes+0x1b6/0x270
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276105] 
[<ffffffff811a31ae>] __writeback_inodes_wb+0x9e/0xd0
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276107] 
[<ffffffff811a345b>] wb_writeback+0x27b/0x330
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276117] 
[<ffffffff810136e5>] ? __switch_to+0xf5/0x360
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276121] 
[<ffffffff81194ad2>] ? get_nr_dirty_inodes+0x52/0x80
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276124] 
[<ffffffff811a35af>] wb_check_old_data_flush+0x9f/0xb0
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276127] 
[<ffffffff811a4481>] wb_do_writeback+0x151/0x1d0
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276132] 
[<ffffffff810778b0>] ? usleep_range+0x50/0x50
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276135] 
[<ffffffff811a4583>] bdi_writeback_thread+0x83/0x2a0
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276137] 
[<ffffffff811a4500>] ? wb_do_writeback+0x1d0/0x1d0
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276140] 
[<ffffffff8108b27c>] kthread+0x8c/0xa0
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276146] 
[<ffffffff816679b4>] kernel_thread_helper+0x4/0x10
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276148] 
[<ffffffff8108b1f0>] ? flush_kthread_worker+0xa0/0xa0
Mar  4 19:45:25 ealxs00169 kernel: [34229638.276151] 
[<ffffffff816679b0>] ? gs_change+0x13/0x13
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246364] INFO: task
flush-8:16:20760 blocked for more than 120 seconds.
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246439] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246501] flush-8:16      D
0000000000000000     0 20760      2 0x00000000
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246505]  ffff8800148af880
0000000000000046 ffff8800148afbf0 0000000000000000
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246509]  ffff8800148affd8
ffff8800148affd8 ffff8800148affd8 00000000000137c0
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246512]  ffff8800022a4500
ffff8800022a1700 ffff8800148af850 ffff88001fc14080
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246515] Call Trace:
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246527] 
[<ffffffff81118360>] ? __lock_page+0x70/0x70
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246532] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246534] 
[<ffffffff8165b3ff>] io_schedule+0x8f/0xd0
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246537] 
[<ffffffff8111836e>] sleep_on_page+0xe/0x20
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246540] 
[<ffffffff8165baca>] __wait_on_bit_lock+0x5a/0xc0
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246543] 
[<ffffffff81118357>] __lock_page+0x67/0x70
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246548] 
[<ffffffff8108bd60>] ? autoremove_wake_function+0x40/0x40
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246554] 
[<ffffffff81122bd4>] write_cache_pages+0x3d4/0x460
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246556] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246559] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246561] 
[<ffffffff81122caa>] generic_writepages+0x4a/0x70
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246622] 
[<ffffffffa008d80d>] xfs_vm_writepages+0x4d/0x60 [xfs]
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246626] 
[<ffffffff81123b71>] do_writepages+0x21/0x40
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246631] 
[<ffffffff811a2990>] writeback_single_inode+0x180/0x430
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246633] 
[<ffffffff811a3056>] writeback_sb_inodes+0x1b6/0x270
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246636] 
[<ffffffff811a31ae>] __writeback_inodes_wb+0x9e/0xd0
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246638] 
[<ffffffff811a345b>] wb_writeback+0x27b/0x330
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246644] 
[<ffffffff810136e5>] ? __switch_to+0xf5/0x360
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246648] 
[<ffffffff81194ad2>] ? get_nr_dirty_inodes+0x52/0x80
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246650] 
[<ffffffff811a35af>] wb_check_old_data_flush+0x9f/0xb0
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246653] 
[<ffffffff811a4481>] wb_do_writeback+0x151/0x1d0
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246658] 
[<ffffffff810778b0>] ? usleep_range+0x50/0x50
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246661] 
[<ffffffff811a4583>] bdi_writeback_thread+0x83/0x2a0
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246663] 
[<ffffffff811a4500>] ? wb_do_writeback+0x1d0/0x1d0
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246665] 
[<ffffffff8108b27c>] kthread+0x8c/0xa0
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246670] 
[<ffffffff816679b4>] kernel_thread_helper+0x4/0x10
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246672] 
[<ffffffff8108b1f0>] ? flush_kthread_worker+0xa0/0xa0
Mar  4 19:47:25 ealxs00169 kernel: [34229758.246675] 
[<ffffffff816679b0>] ? gs_change+0x13/0x13
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204689] INFO: task
flush-8:16:20760 blocked for more than 120 seconds.
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204764] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204827] flush-8:16      D
0000000000000000     0 20760      2 0x00000000
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204834]  ffff8800148af880
0000000000000046 ffff8800148afbf0 0000000000000000
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204838]  ffff8800148affd8
ffff8800148affd8 ffff8800148affd8 00000000000137c0
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204841]  ffff8800022a4500
ffff8800022a1700 ffff8800148af850 ffff88001fc14080
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204844] Call Trace:
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204865] 
[<ffffffff81118360>] ? __lock_page+0x70/0x70
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204870] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204872] 
[<ffffffff8165b3ff>] io_schedule+0x8f/0xd0
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204875] 
[<ffffffff8111836e>] sleep_on_page+0xe/0x20
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204878] 
[<ffffffff8165baca>] __wait_on_bit_lock+0x5a/0xc0
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204880] 
[<ffffffff81118357>] __lock_page+0x67/0x70
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204886] 
[<ffffffff8108bd60>] ? autoremove_wake_function+0x40/0x40
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204891] 
[<ffffffff81122bd4>] write_cache_pages+0x3d4/0x460
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204893] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204896] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204898] 
[<ffffffff81122caa>] generic_writepages+0x4a/0x70
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204956] 
[<ffffffffa008d80d>] xfs_vm_writepages+0x4d/0x60 [xfs]
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204960] 
[<ffffffff81123b71>] do_writepages+0x21/0x40
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204965] 
[<ffffffff811a2990>] writeback_single_inode+0x180/0x430
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204967] 
[<ffffffff811a3056>] writeback_sb_inodes+0x1b6/0x270
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204970] 
[<ffffffff811a31ae>] __writeback_inodes_wb+0x9e/0xd0
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204972] 
[<ffffffff811a345b>] wb_writeback+0x27b/0x330
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204976] 
[<ffffffff810136e5>] ? __switch_to+0xf5/0x360
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204980] 
[<ffffffff81194ad2>] ? get_nr_dirty_inodes+0x52/0x80
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204982] 
[<ffffffff811a35af>] wb_check_old_data_flush+0x9f/0xb0
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204985] 
[<ffffffff811a4481>] wb_do_writeback+0x151/0x1d0
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204990] 
[<ffffffff810778b0>] ? usleep_range+0x50/0x50
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204993] 
[<ffffffff811a4583>] bdi_writeback_thread+0x83/0x2a0
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204995] 
[<ffffffff811a4500>] ? wb_do_writeback+0x1d0/0x1d0
Mar  4 19:49:25 ealxs00169 kernel: [34229878.204997] 
[<ffffffff8108b27c>] kthread+0x8c/0xa0
Mar  4 19:49:25 ealxs00169 kernel: [34229878.205002] 
[<ffffffff816679b4>] kernel_thread_helper+0x4/0x10
Mar  4 19:49:25 ealxs00169 kernel: [34229878.205004] 
[<ffffffff8108b1f0>] ? flush_kthread_worker+0xa0/0xa0
Mar  4 19:49:25 ealxs00169 kernel: [34229878.205007] 
[<ffffffff816679b0>] ? gs_change+0x13/0x13
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176219] INFO: task
flush-8:16:20760 blocked for more than 120 seconds.
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176491] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176614] flush-8:16      D
0000000000000000     0 20760      2 0x00000000
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176618]  ffff8800148af880
0000000000000046 ffff8800148afbf0 0000000000000000
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176622]  ffff8800148affd8
ffff8800148affd8 ffff8800148affd8 00000000000137c0
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176625]  ffff8800022a4500
ffff8800022a1700 ffff8800148af850 ffff88001fc14080
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176628] Call Trace:
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176640] 
[<ffffffff81118360>] ? __lock_page+0x70/0x70
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176645] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176647] 
[<ffffffff8165b3ff>] io_schedule+0x8f/0xd0
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176649] 
[<ffffffff8111836e>] sleep_on_page+0xe/0x20
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176652] 
[<ffffffff8165baca>] __wait_on_bit_lock+0x5a/0xc0
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176655] 
[<ffffffff81118357>] __lock_page+0x67/0x70
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176661] 
[<ffffffff8108bd60>] ? autoremove_wake_function+0x40/0x40
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176666] 
[<ffffffff81122bd4>] write_cache_pages+0x3d4/0x460
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176668] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176671] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176673] 
[<ffffffff81122caa>] generic_writepages+0x4a/0x70
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176746] 
[<ffffffffa008d80d>] xfs_vm_writepages+0x4d/0x60 [xfs]
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176750] 
[<ffffffff81123b71>] do_writepages+0x21/0x40
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176756] 
[<ffffffff811a2990>] writeback_single_inode+0x180/0x430
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176759] 
[<ffffffff811a3056>] writeback_sb_inodes+0x1b6/0x270
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176762] 
[<ffffffff811a31ae>] __writeback_inodes_wb+0x9e/0xd0
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176764] 
[<ffffffff811a345b>] wb_writeback+0x27b/0x330
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176769] 
[<ffffffff810136e5>] ? __switch_to+0xf5/0x360
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176773] 
[<ffffffff81194ad2>] ? get_nr_dirty_inodes+0x52/0x80
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176776] 
[<ffffffff811a35af>] wb_check_old_data_flush+0x9f/0xb0
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176779] 
[<ffffffff811a4481>] wb_do_writeback+0x151/0x1d0
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176784] 
[<ffffffff810778b0>] ? usleep_range+0x50/0x50
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176786] 
[<ffffffff811a4583>] bdi_writeback_thread+0x83/0x2a0
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176789] 
[<ffffffff811a4500>] ? wb_do_writeback+0x1d0/0x1d0
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176791] 
[<ffffffff8108b27c>] kthread+0x8c/0xa0
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176796] 
[<ffffffff816679b4>] kernel_thread_helper+0x4/0x10
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176798] 
[<ffffffff8108b1f0>] ? flush_kthread_worker+0xa0/0xa0
Mar  4 19:51:25 ealxs00169 kernel: [34229998.176801] 
[<ffffffff816679b0>] ? gs_change+0x13/0x13
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139419] INFO: task
flush-8:16:20760 blocked for more than 120 seconds.
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139541] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139635] flush-8:16      D
0000000000000000     0 20760      2 0x00000000
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139639]  ffff8800148af880
0000000000000046 ffff8800148afbf0 0000000000000000
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139643]  ffff8800148affd8
ffff8800148affd8 ffff8800148affd8 00000000000137c0
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139646]  ffff8800022a4500
ffff8800022a1700 ffff8800148af850 ffff88001fc14080
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139649] Call Trace:
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139665] 
[<ffffffff81118360>] ? __lock_page+0x70/0x70
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139671] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139673] 
[<ffffffff8165b3ff>] io_schedule+0x8f/0xd0
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139676] 
[<ffffffff8111836e>] sleep_on_page+0xe/0x20
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139679] 
[<ffffffff8165baca>] __wait_on_bit_lock+0x5a/0xc0
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139681] 
[<ffffffff81118357>] __lock_page+0x67/0x70
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139687] 
[<ffffffff8108bd60>] ? autoremove_wake_function+0x40/0x40
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139693] 
[<ffffffff81122bd4>] write_cache_pages+0x3d4/0x460
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139695] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139698] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139700] 
[<ffffffff81122caa>] generic_writepages+0x4a/0x70
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139759] 
[<ffffffffa008d80d>] xfs_vm_writepages+0x4d/0x60 [xfs]
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139762] 
[<ffffffff81123b71>] do_writepages+0x21/0x40
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139767] 
[<ffffffff811a2990>] writeback_single_inode+0x180/0x430
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139770] 
[<ffffffff811a3056>] writeback_sb_inodes+0x1b6/0x270
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139773] 
[<ffffffff811a31ae>] __writeback_inodes_wb+0x9e/0xd0
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139775] 
[<ffffffff811a345b>] wb_writeback+0x27b/0x330
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139781] 
[<ffffffff810136e5>] ? __switch_to+0xf5/0x360
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139785] 
[<ffffffff81194ad2>] ? get_nr_dirty_inodes+0x52/0x80
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139787] 
[<ffffffff811a35af>] wb_check_old_data_flush+0x9f/0xb0
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139791] 
[<ffffffff811a4481>] wb_do_writeback+0x151/0x1d0
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139796] 
[<ffffffff810778b0>] ? usleep_range+0x50/0x50
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139798] 
[<ffffffff811a4583>] bdi_writeback_thread+0x83/0x2a0
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139801] 
[<ffffffff811a4500>] ? wb_do_writeback+0x1d0/0x1d0
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139803] 
[<ffffffff8108b27c>] kthread+0x8c/0xa0
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139808] 
[<ffffffff816679b4>] kernel_thread_helper+0x4/0x10
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139810] 
[<ffffffff8108b1f0>] ? flush_kthread_worker+0xa0/0xa0
Mar  4 19:53:25 ealxs00169 kernel: [34230118.139813] 
[<ffffffff816679b0>] ? gs_change+0x13/0x13
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105607] INFO: task
flush-8:16:20760 blocked for more than 120 seconds.
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105721] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105812] flush-8:16      D
0000000000000000     0 20760      2 0x00000000
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105817]  ffff8800148af880
0000000000000046 ffff8800148afbf0 0000000000000000
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105823]  ffff8800148affd8
ffff8800148affd8 ffff8800148affd8 00000000000137c0
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105826]  ffff8800022a4500
ffff8800022a1700 ffff8800148af850 ffff88001fc14080
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105829] Call Trace:
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105848] 
[<ffffffff81118360>] ? __lock_page+0x70/0x70
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105860] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105862] 
[<ffffffff8165b3ff>] io_schedule+0x8f/0xd0
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105865] 
[<ffffffff8111836e>] sleep_on_page+0xe/0x20
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105872] 
[<ffffffff8165baca>] __wait_on_bit_lock+0x5a/0xc0
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105875] 
[<ffffffff81118357>] __lock_page+0x67/0x70
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105881] 
[<ffffffff8108bd60>] ? autoremove_wake_function+0x40/0x40
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105887] 
[<ffffffff81122bd4>] write_cache_pages+0x3d4/0x460
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105890] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105892] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105895] 
[<ffffffff81122caa>] generic_writepages+0x4a/0x70
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105965] 
[<ffffffffa008d80d>] xfs_vm_writepages+0x4d/0x60 [xfs]
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105971] 
[<ffffffff81123b71>] do_writepages+0x21/0x40
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105980] 
[<ffffffff811a2990>] writeback_single_inode+0x180/0x430
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105983] 
[<ffffffff811a3056>] writeback_sb_inodes+0x1b6/0x270
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105986] 
[<ffffffff811a31ae>] __writeback_inodes_wb+0x9e/0xd0
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105988] 
[<ffffffff811a345b>] wb_writeback+0x27b/0x330
Mar  4 19:55:25 ealxs00169 kernel: [34230238.105998] 
[<ffffffff810136e5>] ? __switch_to+0xf5/0x360
Mar  4 19:55:25 ealxs00169 kernel: [34230238.106003] 
[<ffffffff81194ad2>] ? get_nr_dirty_inodes+0x52/0x80
Mar  4 19:55:25 ealxs00169 kernel: [34230238.106005] 
[<ffffffff811a35af>] wb_check_old_data_flush+0x9f/0xb0
Mar  4 19:55:25 ealxs00169 kernel: [34230238.106009] 
[<ffffffff811a4481>] wb_do_writeback+0x151/0x1d0
Mar  4 19:55:25 ealxs00169 kernel: [34230238.106014] 
[<ffffffff810778b0>] ? usleep_range+0x50/0x50
Mar  4 19:55:25 ealxs00169 kernel: [34230238.106016] 
[<ffffffff811a4583>] bdi_writeback_thread+0x83/0x2a0
Mar  4 19:55:25 ealxs00169 kernel: [34230238.106019] 
[<ffffffff811a4500>] ? wb_do_writeback+0x1d0/0x1d0
Mar  4 19:55:25 ealxs00169 kernel: [34230238.106021] 
[<ffffffff8108b27c>] kthread+0x8c/0xa0
Mar  4 19:55:25 ealxs00169 kernel: [34230238.106027] 
[<ffffffff816679b4>] kernel_thread_helper+0x4/0x10
Mar  4 19:55:25 ealxs00169 kernel: [34230238.106030] 
[<ffffffff8108b1f0>] ? flush_kthread_worker+0xa0/0xa0
Mar  4 19:55:25 ealxs00169 kernel: [34230238.106032] 
[<ffffffff816679b0>] ? gs_change+0x13/0x13
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082371] INFO: task
flush-8:16:20760 blocked for more than 120 seconds.
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082468] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082560] flush-8:16      D
0000000000000000     0 20760      2 0x00000000
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082564]  ffff8800148af880
0000000000000046 ffff8800148afbf0 0000000000000000
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082568]  ffff8800148affd8
ffff8800148affd8 ffff8800148affd8 00000000000137c0
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082571]  ffff8800022a4500
ffff8800022a1700 ffff8800148af850 ffff88001fc14080
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082573] Call Trace:
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082594] 
[<ffffffff81118360>] ? __lock_page+0x70/0x70
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082599] 
[<ffffffff8165b34f>] schedule+0x3f/0x60
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082601] 
[<ffffffff8165b3ff>] io_schedule+0x8f/0xd0
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082604] 
[<ffffffff8111836e>] sleep_on_page+0xe/0x20
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082607] 
[<ffffffff8165baca>] __wait_on_bit_lock+0x5a/0xc0
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082609] 
[<ffffffff81118357>] __lock_page+0x67/0x70
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082615] 
[<ffffffff8108bd60>] ? autoremove_wake_function+0x40/0x40
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082620] 
[<ffffffff81122bd4>] write_cache_pages+0x3d4/0x460
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082623] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082625] 
[<ffffffff81122200>] ? set_page_dirty_lock+0x60/0x60
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082627] 
[<ffffffff81122caa>] generic_writepages+0x4a/0x70
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082677] 
[<ffffffffa008d80d>] xfs_vm_writepages+0x4d/0x60 [xfs]
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082681] 
[<ffffffff81123b71>] do_writepages+0x21/0x40
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082687] 
[<ffffffff811a2990>] writeback_single_inode+0x180/0x430
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082689] 
[<ffffffff811a3056>] writeback_sb_inodes+0x1b6/0x270
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082692] 
[<ffffffff811a31ae>] __writeback_inodes_wb+0x9e/0xd0
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082694] 
[<ffffffff811a345b>] wb_writeback+0x27b/0x330
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082700] 
[<ffffffff810136e5>] ? __switch_to+0xf5/0x360
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082705] 
[<ffffffff81194ad2>] ? get_nr_dirty_inodes+0x52/0x80
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082707] 
[<ffffffff811a35af>] wb_check_old_data_flush+0x9f/0xb0
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082713] 
[<ffffffff811a4481>] wb_do_writeback+0x151/0x1d0
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082719] 
[<ffffffff810778b0>] ? usleep_range+0x50/0x50
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082721] 
[<ffffffff811a4583>] bdi_writeback_thread+0x83/0x2a0
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082723] 
[<ffffffff811a4500>] ? wb_do_writeback+0x1d0/0x1d0
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082726] 
[<ffffffff8108b27c>] kthread+0x8c/0xa0
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082731] 
[<ffffffff816679b4>] kernel_thread_helper+0x4/0x10
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082733] 
[<ffffffff8108b1f0>] ? flush_kthread_worker+0xa0/0xa0
Mar  4 19:57:25 ealxs00169 kernel: [34230358.082736] 

[<ffffffff816679b0>] ? gs_change+0x13/0x13

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Could you set up kdump and take a core dump next time it hangs? There is a couple suspicious items in the syslog entries

--Mark.

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op 24-03-14 14:27, Mark Tinguely schreef:

Mark,

We will setup the kdump. Can you elloborate on your suspicions?

Michel.

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I am interested in the AGF buffer locks and it would be nice to know who hold what locks. The flush workers are interesting too. We have seen process block worker's writes from completing, so looking at what is running and scheduled would be interesting. So a vmcore would tell a lot.

--Mark.

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......

....

Writeback is blocked on a locked page, and is waiting for IO completion.

120s later, unlinking a file, blocked waiting on an AGF lock.

writeback again, 120s later.

120s later, fsync() blocks and AGF lock trying to do allocation.

Still blocked on AGF in unlink.

120s later, unlink blocked on a directory mutex.

(others stuck on AGF lock).

Yup, everything is stuck waiting for writeback to complete.

can you reproduce this? does the IO subsystem go idle when this occurs? or is it running flat out?

Cheers,

Dave.

Dave Chinner
[email protected]

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op 24-03-14 18:36, Dave Chinner schreef:

We are not yet able to reproduce. But your added explanation might help us in reproducing. The production environment is very dynamic in when clients connect to the service and what kind of requests they do.

The colleague handling the incident tried to get some info but because he was alarmed quit late he decided for the reboot instead to get our production qorking again. For the next time we are preparing some scripts to gather information which might tell more.
If you have any suggestions on commands we can run when it happens again please let me know? Currently we are configuring kdump as suggested by Mark and some other queries against our own software.

Some extra info: this system has been running for about 1 year without any problems. During this time it was never rebooted or restarted until the issue on the 4th. Only change could be in the usage of java service running on it by external clients. We are looking into this.

Thank you for looking into it.

Michel.

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op 24-03-14 18:36, Dave Chinner schreef:

We currently have the following options in fstab for the filesystem:
defaults,noatime,inode64,barrier=no

Now I read everywhere to turn of barrier you should specify "nobarrier". Is our way of disabling wrong?

The disc used has "write cache" disabled:

[    2.875792] sd 3:0:0:0: Attached scsi generic sg2 type 0
[    2.876376] sd 3:0:0:0: [sdb] 629145600 512-byte logical blocks: (322
GB/300 GiB)
[    2.876879] sd 3:0:0:0: [sdb] Write Protect is off
[    2.877050] sd 3:0:0:0: [sdb] Mode Sense: 87 00 00 08
[    2.877890] sd 3:0:0:0: [sdb] Write cache: disabled, read cache:
enabled, doesn't support DPO or FUA
[    2.885634]  sdb: unknown partition table
...
[    5.132308] SGI XFS with ACLs, security attributes, realtime, large
block/inode numbers, no debug enabled
[    5.155268] SGI XFS Quota Management subsystem
[    5.159345] XFS (sdb): Mounting Filesystem

..

Following is output of xfs_info on sdb:
meta-data=/dev/sdb isize=256 agcount=4, agsize=19660800
blks

         =                       sectsz=512   attr=2
data     =                       bsize=4096   blocks=78643200, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0
log      =internal               bsize=4096   blocks=38400, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0

.....

Michel.

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