Hi,
I've been running a stress test on 3.14.15 and eventually my xfs
filesystem hangs. Both 3.10.50 and 3.16 seem to work ok.
The test is a continual loop building a kernel. Once it hangs, the
machine needs to be hard reset.
xfs_info shows this:
meta-data=/dev/md3 isize=256 agcount=16, agsize=1627664
blks
= sectsz=4096 attr=2
data = bsize=4096 blocks=26042624, imaxpct=25
= sunit=16 swidth=80 blks
naming =version 2 bsize=4096 ascii-ci=0
log =internal bsize=4096 blocks=12716, version=2
= sectsz=4096 sunit=1 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
It's on a raid5, although I've gotten the hang on a regular single disk
fs as well.
md3 : active raid5 sda1[0] sdf1[5] sde1[4] sdd1[3] sdc1[2] sdb1[1]
104171200 blocks level 5, 64k chunk, algorithm 2 [6/6] [UUUUUU]
bitmap: 0/5 pages [0KB], 2048KB chunk
Here's the mount options:
/dev/md3 on /mnt/md3 type xfs (rw,noatime,swalloc)
Things usually run well for a while before hanging - in this instance it
ran nearly 24 hours before it hung.
A whole bunch of message info is below. Any idea what's happening here?
Thanks
Bill
/var/log/messages shows this shortly after the hang:
Aug 4 17:34:34 xplane kernel: kworker/u16:0 D 00000286 0
26574 2 0x00000000
Aug 4 17:34:34 xplane kernel: Workqueue: writeback bdi_writeback_workfn
(flush-9:3)
Aug 4 17:34:34 xplane kernel: kworker/0:1 D ea649638 0
17883 2 0x00000000
Aug 4 17:34:34 xplane kernel: Workqueue: xfs-log/md3 xfs_log_worker [xfs]
Aug 4 17:34:34 xplane kernel: sh D 00000000 0 3237
3234 0x00000000
Aug 4 17:34:34 xplane kernel: mv D c1506cc8 0 17651
13354 0x00000000
Aug 4 17:34:34 xplane kernel: recordmcount D 00000000 0 17655
17580 0x00000000
Aug 4 17:34:34 xplane kernel: sh D 00001000 0 17677
17675 0x00000000
Aug 4 17:36:34 xplane kernel: kworker/u16:0 D 00000286 0
26574 2 0x00000000
Aug 4 17:36:34 xplane kernel: Workqueue: writeback bdi_writeback_workfn
(flush-9:3)
Aug 4 17:36:34 xplane kernel: kworker/0:1 D ea649638 0
17883 2 0x00000000
Aug 4 17:36:34 xplane kernel: Workqueue: xfs-log/md3 xfs_log_worker [xfs]
Aug 4 17:36:34 xplane kernel: sh D 00000000 0 3237
3234 0x00000000
Aug 4 17:36:34 xplane kernel: mv D c1506cc8 0 17651
13354 0x00000000
and dmesg is here:
INFO: task kworker/u16:0:26574 blocked for more than 120 seconds.
Tainted: P O 3.14.15fe-dirty #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/u16:0 D 00000286 0 26574 2 0x00000000
Workqueue: writeback bdi_writeback_workfn (flush-9:3)
ce385b84 00000046 df51bb30 00000286 f3e8a097 df51ba78 df51bb30 c1787600
c1787600 c16a5e40 d03a3160 00000065 ce385b64 f3e8b14f 00000004 f3ec8986
e65bccf8 ce385b80 c10f457e dcc9e740 e925e800 e92b2e00 000000fa e8593c00
Call Trace:
[<f3e8a097>] ? xfs_trans_free+0x57/0x60 [xfs]
[<f3e8b14f>] ? xfs_trans_commit+0x12f/0x230 [xfs]
[<f3ec8986>] ? xlog_space_left+0x26/0xa0 [xfs]
[<c10f457e>] ? kmem_cache_alloc+0xae/0x110
[<f3ec8aa1>] ? xlog_grant_push_ail+0xa1/0xc0 [xfs]
[<c1504b03>] schedule+0x23/0x60
[<f3ec8c35>] xlog_grant_head_wait+0x75/0x130 [xfs]
[<f3ec8d62>] xlog_grant_head_check+0x72/0xc0 [xfs]
[<f3ecc0cf>] xfs_log_reserve+0xbf/0x160 [xfs]
[<f3e8a444>] xfs_trans_reserve+0x214/0x220 [xfs]
[<f3e6ce18>] xfs_setfilesize_trans_alloc.isra.7+0x38/0x90 [xfs]
[<f3e6da05>] xfs_vm_writepage+0x465/0x580 [xfs]
[<c10cb6d0>] __writepage+0x10/0x40
[<c10cb6c0>] ? mapping_tagged+0x20/0x20
[<c10cbbd0>] write_cache_pages+0x170/0x3d0
[<c10cb6c0>] ? mapping_tagged+0x20/0x20
[<c12814f6>] ? blk_flush_plug_list+0x86/0x1b0
[<c10cbe63>] generic_writepages+0x33/0x60
[<f3e6c8a3>] xfs_vm_writepages+0x33/0x40 [xfs]
[<c10cd31a>] do_writepages+0x1a/0x40
[<c111b6b2>] __writeback_single_inode+0x42/0x1f0
[<c106f2ec>] ? wake_up_bit+0x1c/0x20
[<c111c413>] writeback_sb_inodes+0x193/0x2e0
[<c111c5dc>] __writeback_inodes_wb+0x7c/0xb0
[<c111c7e2>] wb_writeback+0x1d2/0x270
[<c111ccbc>] bdi_writeback_workfn+0x20c/0x380
[<c1050b08>] process_one_work+0x108/0x340
[<c1046045>] ? mod_timer+0xd5/0x180
[<c1051621>] worker_thread+0x101/0x330
[<c1051520>] ? manage_workers.isra.28+0x250/0x250
[<c10566a1>] kthread+0xa1/0xc0
[<c150e1b7>] ret_from_kernel_thread+0x1b/0x28
[<c1056600>] ? kthread_create_on_node+0x110/0x110
INFO: task kworker/0:1:17883 blocked for more than 120 seconds.
Tainted: P O 3.14.15fe-dirty #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/0:1 D ea649638 0 17883 2 0x00000000
Workqueue: xfs-log/md3 xfs_log_worker [xfs]
e385be50 00000046 00000001 ea649638 ced77c5f 00004ed9 ea649638 c1787600
c1787600 e741b1a0 e0f872a0 e385be84 c106aaec 00000000 00000000 f3ec8986
e2c8bda8 e385be4c c10f457e 00000000 00000000 0000b40e 000000fa e8593c00
Call Trace:
[<c106aaec>] ? load_balance+0x16c/0x5b0
[<f3ec8986>] ? xlog_space_left+0x26/0xa0 [xfs]
[<c10f457e>] ? kmem_cache_alloc+0xae/0x110
[<f3ec8aa1>] ? xlog_grant_push_ail+0xa1/0xc0 [xfs]
[<c1504b03>] schedule+0x23/0x60
[<f3ec8c35>] xlog_grant_head_wait+0x75/0x130 [xfs]
[<f3ec8d62>] xlog_grant_head_check+0x72/0xc0 [xfs]
[<f3ecc0cf>] xfs_log_reserve+0xbf/0x160 [xfs]
[<f3e8a444>] xfs_trans_reserve+0x214/0x220 [xfs]
[<f3e7abd4>] xfs_fs_log_dummy+0x34/0x80 [xfs]
[<f3ecba1f>] xfs_log_worker+0x3f/0x50 [xfs]
[<c1050b08>] process_one_work+0x108/0x340
[<c104fdc3>] ? destroy_worker+0x83/0xc0
[<c1051475>] ? manage_workers.isra.28+0x1a5/0x250
[<c1051621>] worker_thread+0x101/0x330
[<c1051520>] ? manage_workers.isra.28+0x250/0x250
[<c10566a1>] kthread+0xa1/0xc0
[<c150e1b7>] ret_from_kernel_thread+0x1b/0x28
[<c1056600>] ? kthread_create_on_node+0x110/0x110
INFO: task sh:3237 blocked for more than 120 seconds.
Tainted: P O 3.14.15fe-dirty #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
sh D 00000000 0 3237 3234 0x00000000
c094dd48 00000082 00000000 00000000 c094dd04 f3ec8b16 e8593e04 c1787600
c1787600 ea18f630 e741ad50 e8593c00 e8593e00 e8593c74 c094dd24 f3ec8986
c697c058 c094dd44 c10f457e c094dd2c c10379be ea81d180 000000fa e8593c00
Call Trace:
[<f3ec8b16>] ? xlog_grant_head_wake+0x56/0xc0 [xfs]
[<f3ec8986>] ? xlog_space_left+0x26/0xa0 [xfs]
[<c10f457e>] ? kmem_cache_alloc+0xae/0x110
[<c10379be>] ? kmap_atomic_prot+0x3e/0xd0
[<f3ec8aa1>] ? xlog_grant_push_ail+0xa1/0xc0 [xfs]
[<c1504b03>] schedule+0x23/0x60
[<f3ec8c35>] xlog_grant_head_wait+0x75/0x130 [xfs]
[<f3ec8d62>] xlog_grant_head_check+0x72/0xc0 [xfs]
[<f3ecc0cf>] xfs_log_reserve+0xbf/0x160 [xfs]
[<f3e8a444>] xfs_trans_reserve+0x214/0x220 [xfs]
[<f3e811b8>] xfs_vn_update_time+0x58/0x150 [xfs]
[<f3e81160>] ? xfs_vn_getattr+0x200/0x200 [xfs]
[<c110df5e>] update_time+0x1e/0xa0
[<c110e15b>] file_update_time+0x6b/0xa0
[<f3e7868d>] xfs_file_aio_write_checks+0x8d/0x140 [xfs]
[<f3e787a8>] xfs_file_buffered_aio_write+0x68/0x180 [xfs]
[<c10e1ff5>] ? do_wp_page+0x2e5/0x740
[<f3e78989>] xfs_file_aio_write+0xc9/0x180 [xfs]
[<c10f8187>] do_sync_write+0x57/0x90
[<c10f8130>] ? do_sync_read+0x90/0x90
[<c10f88e0>] vfs_write+0x90/0x180
[<c10f8f2c>] SyS_write+0x4c/0xb0
[<c1507148>] syscall_call+0x7/0x7
INFO: task mv:17651 blocked for more than 120 seconds.
Tainted: P O 3.14.15fe-dirty #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
mv D c1506cc8 0 17651 13354 0x00000000
cfbabd0c 00000086 cfbabca0 c1506cc8 00000001 c16e4c74 00000003 c1787600
c1787600 ea15ed50 cace76b0 c106f28f 00000000 00000000 00000001 f3ec8986
c697c108 cfbabd08 c10f457e c14de398 00000000 ce29bd80 000000fa e8593c00
Call Trace:
[<c1506cc8>] ? _raw_spin_unlock_bh+0x18/0x20
[<c106f28f>] ? __wake_up+0x3f/0x50
[<f3ec8986>] ? xlog_space_left+0x26/0xa0 [xfs]
[<c10f457e>] ? kmem_cache_alloc+0xae/0x110
[<c14de398>] ? rpc_release_client+0x78/0x80
[<f3ec8aa1>] ? xlog_grant_push_ail+0xa1/0xc0 [xfs]
[<c1504b03>] schedule+0x23/0x60
[<f3ec8c35>] xlog_grant_head_wait+0x75/0x130 [xfs]
[<f3ec8d62>] xlog_grant_head_check+0x72/0xc0 [xfs]
[<f3ecc0cf>] xfs_log_reserve+0xbf/0x160 [xfs]
[<f3e8a444>] xfs_trans_reserve+0x214/0x220 [xfs]
[<f3ebc6bb>] xfs_rename+0xeb/0x5a0 [xfs]
[<c1101c46>] ? inode_permission+0x16/0x50
[<c11081a4>] ? filldir64+0x44/0x110
[<f3e813ab>] xfs_vn_rename+0x8b/0xa0 [xfs]
[<c11058ce>] vfs_rename+0x4fe/0x510
[<c1100f44>] ? lookup_dcache+0x24/0xa0
[<c11064ce>] SyS_renameat+0x21e/0x340
[<c150a25f>] ? __do_page_fault+0x28f/0x4d0
[<c110661d>] SyS_rename+0x2d/0x30
[<c1507148>] syscall_call+0x7/0x7
INFO: task recordmcount:17655 blocked for more than 120 seconds.
Tainted: P O 3.14.15fe-dirty #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
recordmcount D 00000000 0 17655 17580 0x00000000
dbf57d48 00000086 00000000 00000000 c14e099e c5690160 e8593e04 c1787600
c1787600 e9989670 d01551e0 e8593c00 e8593e00 e8593c74 dbf57d24 f3ec8986
cf59aa38 dbf57d44 c10f457e cf72c73c 00000000 dbf57d2c 000000fa e8593c00
Call Trace:
[<c14e099e>] ? xprt_release+0x11e/0x250
[<f3ec8986>] ? xlog_space_left+0x26/0xa0 [xfs]
[<c10f457e>] ? kmem_cache_alloc+0xae/0x110
[<f3ec8aa1>] ? xlog_grant_push_ail+0xa1/0xc0 [xfs]
[<c1504b03>] schedule+0x23/0x60
[<f3ec8c35>] xlog_grant_head_wait+0x75/0x130 [xfs]
[<f3ec8d62>] xlog_grant_head_check+0x72/0xc0 [xfs]
[<f3ecc0cf>] xfs_log_reserve+0xbf/0x160 [xfs]
[<f3e8a444>] xfs_trans_reserve+0x214/0x220 [xfs]
[<f3e811b8>] xfs_vn_update_time+0x58/0x150 [xfs]
[<f3e81160>] ? xfs_vn_getattr+0x200/0x200 [xfs]
[<c110df5e>] update_time+0x1e/0xa0
[<c110e15b>] file_update_time+0x6b/0xa0
[<f3e7868d>] xfs_file_aio_write_checks+0x8d/0x140 [xfs]
[<f3e787a8>] xfs_file_buffered_aio_write+0x68/0x180 [xfs]
[<f3e78989>] xfs_file_aio_write+0xc9/0x180 [xfs]
[<c10f8187>] do_sync_write+0x57/0x90
[<c10f8130>] ? do_sync_read+0x90/0x90
[<c10f88e0>] vfs_write+0x90/0x180
[<c10f8f2c>] SyS_write+0x4c/0xb0
[<c1507148>] syscall_call+0x7/0x7
INFO: task sh:17677 blocked for more than 120 seconds.
Tainted: P O 3.14.15fe-dirty #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
sh D 00001000 0 17677 17675 0x00000000
e3d73cd4 00000086 dc9e2420 00001000 e3d73c90 c1122497 f0bbcb20 c1787600
c1787600 c16a5e40 e91bbb40 00000287 00000001 00000288 e93b5400 f3ec8986
c63862a8 e3d73cd0 c10f457e e3d73cd0 c112259b 00001287 000000fa e8593c00
Call Trace:
[<c1122497>] ? __block_commit_write.isra.18+0x67/0x90
[<f3ec8986>] ? xlog_space_left+0x26/0xa0 [xfs]
[<c10f457e>] ? kmem_cache_alloc+0xae/0x110
[<c112259b>] ? generic_write_end+0x7b/0xb0
[<f3ec8aa1>] ? xlog_grant_push_ail+0xa1/0xc0 [xfs]
[<c1504b03>] schedule+0x23/0x60
[<f3ec8c35>] xlog_grant_head_wait+0x75/0x130 [xfs]
[<f3ec8d62>] xlog_grant_head_check+0x72/0xc0 [xfs]
[<f3ecc0cf>] xfs_log_reserve+0xbf/0x160 [xfs]
[<f3e8a444>] xfs_trans_reserve+0x214/0x220 [xfs]
[<f3ebb1b3>] xfs_create+0x113/0x490 [xfs]
[<f3e814d4>] xfs_vn_mknod+0x84/0xe0 [xfs]
[<f3e8156a>] xfs_vn_create+0x1a/0x20 [xfs]
[<c110240c>] vfs_create+0x9c/0xe0
[<c110439a>] do_last.isra.46+0x7aa/0xbf0
[<c1101e6d>] ? link_path_walk+0x1ed/0x6f0
[<c10f457e>] ? kmem_cache_alloc+0xae/0x110
[<c110488c>] path_openat+0xac/0x590
[<c10e3a32>] ? handle_mm_fault+0x132/0x850
[<c1105b11>] do_filp_open+0x31/0x80
[<c10f7c21>] do_sys_open+0x121/0x220
[<c1049d07>] ? sigprocmask+0x67/0xb0
[<c10f7d42>] SyS_open+0x22/0x30
[<c1507148>] syscall_call+0x7/0x7
INFO: task kworker/u16:0:26574 blocked for more than 120 seconds.
Tainted: P O 3.14.15fe-dirty #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/u16:0 D 00000286 0 26574 2 0x00000000
Workqueue: writeback bdi_writeback_workfn (flush-9:3)
ce385b84 00000046 df51bb30 00000286 f3e8a097 df51ba78 df51bb30 c1787600
c1787600 c16a5e40 d03a3160 00000065 ce385b64 f3e8b14f 00000004 f3ec8986
e65bccf8 ce385b80 c10f457e dcc9e740 e925e800 e92b2e00 000000fa e8593c00
Call Trace:
[<f3e8a097>] ? xfs_trans_free+0x57/0x60 [xfs]
[<f3e8b14f>] ? xfs_trans_commit+0x12f/0x230 [xfs]
[<f3ec8986>] ? xlog_space_left+0x26/0xa0 [xfs]
[<c10f457e>] ? kmem_cache_alloc+0xae/0x110
[<f3ec8aa1>] ? xlog_grant_push_ail+0xa1/0xc0 [xfs]
[<c1504b03>] schedule+0x23/0x60
[<f3ec8c35>] xlog_grant_head_wait+0x75/0x130 [xfs]
[<f3ec8d62>] xlog_grant_head_check+0x72/0xc0 [xfs]
[<f3ecc0cf>] xfs_log_reserve+0xbf/0x160 [xfs]
[<f3e8a444>] xfs_trans_reserve+0x214/0x220 [xfs]
[<f3e6ce18>] xfs_setfilesize_trans_alloc.isra.7+0x38/0x90 [xfs]
[<f3e6da05>] xfs_vm_writepage+0x465/0x580 [xfs]
[<c10cb6d0>] __writepage+0x10/0x40
[<c10cb6c0>] ? mapping_tagged+0x20/0x20
[<c10cbbd0>] write_cache_pages+0x170/0x3d0
[<c10cb6c0>] ? mapping_tagged+0x20/0x20
[<c12814f6>] ? blk_flush_plug_list+0x86/0x1b0
[<c10cbe63>] generic_writepages+0x33/0x60
[<f3e6c8a3>] xfs_vm_writepages+0x33/0x40 [xfs]
[<c10cd31a>] do_writepages+0x1a/0x40
[<c111b6b2>] __writeback_single_inode+0x42/0x1f0
[<c106f2ec>] ? wake_up_bit+0x1c/0x20
[<c111c413>] writeback_sb_inodes+0x193/0x2e0
[<c111c5dc>] __writeback_inodes_wb+0x7c/0xb0
[<c111c7e2>] wb_writeback+0x1d2/0x270
[<c111ccbc>] bdi_writeback_workfn+0x20c/0x380
[<c1050b08>] process_one_work+0x108/0x340
[<c1046045>] ? mod_timer+0xd5/0x180
[<c1051621>] worker_thread+0x101/0x330
[<c1051520>] ? manage_workers.isra.28+0x250/0x250
[<c10566a1>] kthread+0xa1/0xc0
[<c150e1b7>] ret_from_kernel_thread+0x1b/0x28
[<c1056600>] ? kthread_create_on_node+0x110/0x110
INFO: task kworker/0:1:17883 blocked for more than 120 seconds.
Tainted: P O 3.14.15fe-dirty #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/0:1 D ea649638 0 17883 2 0x00000000
Workqueue: xfs-log/md3 xfs_log_worker [xfs]
e385be50 00000046 00000001 ea649638 ced77c5f 00004ed9 ea649638 c1787600
c1787600 e741b1a0 e0f872a0 e385be84 c106aaec 00000000 00000000 f3ec8986
e2c8bda8 e385be4c c10f457e 00000000 00000000 0000b40e 000000fa e8593c00
Call Trace:
[<c106aaec>] ? load_balance+0x16c/0x5b0
[<f3ec8986>] ? xlog_space_left+0x26/0xa0 [xfs]
[<c10f457e>] ? kmem_cache_alloc+0xae/0x110
[<f3ec8aa1>] ? xlog_grant_push_ail+0xa1/0xc0 [xfs]
[<c1504b03>] schedule+0x23/0x60
[<f3ec8c35>] xlog_grant_head_wait+0x75/0x130 [xfs]
[<f3ec8d62>] xlog_grant_head_check+0x72/0xc0 [xfs]
[<f3ecc0cf>] xfs_log_reserve+0xbf/0x160 [xfs]
[<f3e8a444>] xfs_trans_reserve+0x214/0x220 [xfs]
[<f3e7abd4>] xfs_fs_log_dummy+0x34/0x80 [xfs]
[<f3ecba1f>] xfs_log_worker+0x3f/0x50 [xfs]
[<c1050b08>] process_one_work+0x108/0x340
[<c104fdc3>] ? destroy_worker+0x83/0xc0
[<c1051475>] ? manage_workers.isra.28+0x1a5/0x250
[<c1051621>] worker_thread+0x101/0x330
[<c1051520>] ? manage_workers.isra.28+0x250/0x250
[<c10566a1>] kthread+0xa1/0xc0
[<c150e1b7>] ret_from_kernel_thread+0x1b/0x28
[<c1056600>] ? kthread_create_on_node+0x110/0x110
INFO: task sh:3237 blocked for more than 120 seconds.
Tainted: P O 3.14.15fe-dirty #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
sh D 00000000 0 3237 3234 0x00000000
c094dd48 00000082 00000000 00000000 c094dd04 f3ec8b16 e8593e04 c1787600
c1787600 ea18f630 e741ad50 e8593c00 e8593e00 e8593c74 c094dd24 f3ec8986
c697c058 c094dd44 c10f457e c094dd2c c10379be ea81d180 000000fa e8593c00
Call Trace:
[<f3ec8b16>] ? xlog_grant_head_wake+0x56/0xc0 [xfs]
[<f3ec8986>] ? xlog_space_left+0x26/0xa0 [xfs]
[<c10f457e>] ? kmem_cache_alloc+0xae/0x110
[<c10379be>] ? kmap_atomic_prot+0x3e/0xd0
[<f3ec8aa1>] ? xlog_grant_push_ail+0xa1/0xc0 [xfs]
[<c1504b03>] schedule+0x23/0x60
[<f3ec8c35>] xlog_grant_head_wait+0x75/0x130 [xfs]
[<f3ec8d62>] xlog_grant_head_check+0x72/0xc0 [xfs]
[<f3ecc0cf>] xfs_log_reserve+0xbf/0x160 [xfs]
[<f3e8a444>] xfs_trans_reserve+0x214/0x220 [xfs]
[<f3e811b8>] xfs_vn_update_time+0x58/0x150 [xfs]
[<f3e81160>] ? xfs_vn_getattr+0x200/0x200 [xfs]
[<c110df5e>] update_time+0x1e/0xa0
[<c110e15b>] file_update_time+0x6b/0xa0
[<f3e7868d>] xfs_file_aio_write_checks+0x8d/0x140 [xfs]
[<f3e787a8>] xfs_file_buffered_aio_write+0x68/0x180 [xfs]
[<c10e1ff5>] ? do_wp_page+0x2e5/0x740
[<f3e78989>] xfs_file_aio_write+0xc9/0x180 [xfs]
[<c10f8187>] do_sync_write+0x57/0x90
[<c10f8130>] ? do_sync_read+0x90/0x90
[<c10f88e0>] vfs_write+0x90/0x180
[<c10f8f2c>] SyS_write+0x4c/0xb0
[<c1507148>] syscall_call+0x7/0x7
INFO: task mv:17651 blocked for more than 120 seconds.
Tainted: P O 3.14.15fe-dirty #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
mv D c1506cc8 0 17651 13354 0x00000000
cfbabd0c 00000086 cfbabca0 c1506cc8 00000001 c16e4c74 00000003 c1787600
c1787600 ea15ed50 cace76b0 c106f28f 00000000 00000000 00000001 f3ec8986
c697c108 cfbabd08 c10f457e c14de398 00000000 ce29bd80 000000fa e8593c00
Call Trace:
[<c1506cc8>] ? _raw_spin_unlock_bh+0x18/0x20
[<c106f28f>] ? __wake_up+0x3f/0x50
[<f3ec8986>] ? xlog_space_left+0x26/0xa0 [xfs]
[<c10f457e>] ? kmem_cache_alloc+0xae/0x110
[<c14de398>] ? rpc_release_client+0x78/0x80
[<f3ec8aa1>] ? xlog_grant_push_ail+0xa1/0xc0 [xfs]
[<c1504b03>] schedule+0x23/0x60
[<f3ec8c35>] xlog_grant_head_wait+0x75/0x130 [xfs]
[<f3ec8d62>] xlog_grant_head_check+0x72/0xc0 [xfs]
[<f3ecc0cf>] xfs_log_reserve+0xbf/0x160 [xfs]
[<f3e8a444>] xfs_trans_reserve+0x214/0x220 [xfs]
[<f3ebc6bb>] xfs_rename+0xeb/0x5a0 [xfs]
[<c1101c46>] ? inode_permission+0x16/0x50
[<c11081a4>] ? filldir64+0x44/0x110
[<f3e813ab>] xfs_vn_rename+0x8b/0xa0 [xfs]
[<c11058ce>] vfs_rename+0x4fe/0x510
[<c1100f44>] ? lookup_dcache+0x24/0xa0
[<c11064ce>] SyS_renameat+0x21e/0x340
[<c150a25f>] ? __do_page_fault+0x28f/0x4d0
[<c110661d>] SyS_rename+0x2d/0x30
[<c1507148>] syscall_call+0x7/0x7
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