From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 44731] New: ext4 deadlock under heavy io?
Date: Fri, 13 Jul 2012 12:23:13 +0000 (UTC)
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https://bugzilla.kernel.org/show_bug.cgi?id=44731
Summary: ext4 deadlock under heavy io?
Product: File System
Version: 2.5
Kernel Version: Linux 3.2.0-23-generic #36-Ubuntu SMP Tue Apr 10
20:39:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: blocking
Priority: P1
Component: ext4
AssignedTo: fs_ext4@kernel-bugs.osdl.org
ReportedBy: mirek@me.com
Regression: No
I'm experiencing some problems with ext4 when doing intensive io (mainly
fallocating/writing/moving files) with up to 32 threads on 8 core xeon where
(rarely) everything hangs until killed after hung_task_timeout_sec (120).
Here are 3 kern logs but have more of them if needed.
kernlog1.txt:
[ 1198.383215] INFO: task jbd2/sdf1-8:694 blocked for more than 120 seconds.
[ 1198.383771] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 1198.384281] jbd2/sdf1-8 D ffffffff81806240 0 694 2 0x00000000
[ 1198.384287] ffff880231c83ce0 0000000000000046 ffff880231c83c80
ffffffff811a86ce
[ 1198.384293] ffff880231c83fd8 ffff880231c83fd8 ffff880231c83fd8
0000000000013780
[ 1198.384298] ffffffff81c0d020 ffff88022dab44d0 ffff880231c83cf0
ffff880231c83df8
[ 1198.384303] Call Trace:
[ 1198.384313] [] ? __wait_on_buffer+0x2e/0x30
[ 1198.384318] [] schedule+0x3f/0x60
[ 1198.384325] []
jbd2_journal_commit_transaction+0x18a/0x1240
[ 1198.384330] [] ? _raw_spin_lock_irqsave+0x2e/0x40
[ 1198.384336] [] ? lock_timer_base.isra.29+0x38/0x70
[ 1198.384341] [] ? add_wait_queue+0x60/0x60
[ 1198.384345] [] kjournald2+0xbb/0x220
[ 1198.384348] [] ? add_wait_queue+0x60/0x60
[ 1198.384352] [] ? commit_timeout+0x10/0x10
[ 1198.384356] [] kthread+0x8c/0xa0
[ 1198.384361] [] kernel_thread_helper+0x4/0x10
[ 1198.384365] [] ? flush_kthread_worker+0xa0/0xa0
[ 1198.384369] [] ? gs_change+0x13/0x13
[ 1198.384375] INFO: task pifs4/eio:3851 blocked for more than 120 seconds.
[ 1198.384734] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 1198.385358] pifs4/eio D ffffffff81806240 0 3851 1 0x00000000
[ 1198.385362] ffff88022fc61d08 0000000000000086 ffff88023fc93780
ffff88022de9ade0
[ 1198.385367] ffff88022fc61fd8 ffff88022fc61fd8 ffff88022fc61fd8
0000000000013780
[ 1198.385372] ffffffff81c0d020 ffff880231a15bc0 ffff88022fc61d18
ffff88022d842800
[ 1198.385377] Call Trace:
[ 1198.385380] [] schedule+0x3f/0x60
[ 1198.385385] [] start_this_handle.isra.9+0x2aa/0x3e0
[ 1198.385389] [] ? add_wait_queue+0x60/0x60
[ 1198.385393] [] jbd2__journal_start+0xca/0x110
[ 1198.385398] [] jbd2_journal_start+0x13/0x20
[ 1198.385403] [] ext4_journal_start_sb+0x7f/0x1d0
[ 1198.385408] [] ? ext4_mkdir+0x11c/0x370
[ 1198.385413] [] ? kern_path_create+0x8a/0x120
[ 1198.385418] [] ext4_mkdir+0x11c/0x370
[ 1198.385421] [] vfs_mkdir+0xa1/0x110
[ 1198.385425] [] sys_mkdirat+0xe2/0xf0
[ 1198.385429] [] sys_mkdir+0x18/0x20
[ 1198.385433] [] system_call_fastpath+0x16/0x1b
[ 1198.385436] INFO: task pifs4/eio:3879 blocked for more than 120 seconds.
[ 1198.385979] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 1198.386710] pifs4/eio D ffffffff81806240 0 3879 1 0x00000000
[ 1198.386714] ffff880231cf99c8 0000000000000086 ffff880231cf9998
ffffffff8109502d
[ 1198.386719] ffff880231cf9fd8 ffff880231cf9fd8 ffff880231cf9fd8
0000000000013780
[ 1198.386732] ffff8802321e16f0 ffff88022e0096f0 ffff880231cf99d8
ffff88022d842800
[ 1198.386737] Call Trace:
[ 1198.386740] [] ? ktime_get_ts+0xad/0xe0
[ 1198.386744] [] schedule+0x3f/0x60
[ 1198.386747] [] start_this_handle.isra.9+0x2aa/0x3e0
[ 1198.386760] [] ? add_wait_queue+0x60/0x60
[ 1198.386764] [] jbd2__journal_start+0xca/0x110
[ 1198.386769] [] jbd2_journal_start+0x13/0x20
[ 1198.386772] [] ext4_journal_start_sb+0x7f/0x1d0
[ 1198.386777] [] ? ext4_dirty_inode+0x26/0x60
[ 1198.386780] [] ? ext4_xattr_get+0x60/0xa0
[ 1198.386784] [] ext4_dirty_inode+0x26/0x60
[ 1198.386789] [] __mark_inode_dirty+0x40/0x2a0
[ 1198.386794] [] file_update_time+0xe4/0x150
[ 1198.386800] [] __generic_file_aio_write+0x1f8/0x440
[ 1198.386805] [] generic_file_aio_write+0x72/0xe0
[ 1198.386809] [] ext4_file_write+0xbf/0x260
[ 1198.386813] [] ? futex_wait+0x15f/0x210
[ 1198.386817] [] do_sync_write+0xd2/0x110
[ 1198.386821] [] ? futex_wake+0x113/0x130
[ 1198.386827] [] ? apparmor_file_permission+0x18/0x20
[ 1198.386831] [] ? security_file_permission+0x2c/0xb0
[ 1198.386835] [] ? rw_verify_area+0x61/0xf0
[ 1198.386838] [] vfs_write+0xb3/0x180
[ 1198.386841] [] sys_write+0x4a/0x90
[ 1198.386845] [] system_call_fastpath+0x16/0x1b
[ 1198.386848] INFO: task pifs4/eio:3963 blocked for more than 120 seconds.
[ 1198.387720] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 1198.388422] pifs4/eio D ffffffff81806240 0 3963 1 0x00000000
[ 1198.388425] ffff8802303b3d08 0000000000000086 ffff8802322625d8
ffff8802322625c0
[ 1198.388429] ffff8802303b3fd8 ffff8802303b3fd8 ffff8802303b3fd8
0000000000013780
[ 1198.388433] ffff8802322196f0 ffff88022e098000 ffff8802303b3d18
ffff88022d842800
[ 1198.388437] Call Trace:
[ 1198.388440] [] schedule+0x3f/0x60
[ 1198.388444] [] start_this_handle.isra.9+0x2aa/0x3e0
[ 1198.388447] [] ? add_wait_queue+0x60/0x60
[ 1198.388451] [] jbd2__journal_start+0xca/0x110
[ 1198.388455] [] jbd2_journal_start+0x13/0x20
[ 1198.388458] [] ext4_journal_start_sb+0x7f/0x1d0
[ 1198.388461] [] ? ext4_mkdir+0x11c/0x370
[ 1198.388464] [] ? kern_path_create+0x8a/0x120
[ 1198.388468] [] ext4_mkdir+0x11c/0x370
[ 1198.388471] [] vfs_mkdir+0xa1/0x110
[ 1198.388474] [] sys_mkdirat+0xe2/0xf0
[ 1198.388477] [] sys_mkdir+0x18/0x20
[ 1198.388480] [] system_call_fastpath+0x16/0x1b
[ 1198.388483] INFO: task pifs4/eio:3965 blocked for more than 120 seconds.
[ 1198.389028] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 1198.389680] pifs4/eio D ffffffff81806240 0 3965 1 0x00000000
[ 1198.389684] ffff880230397d08 0000000000000086 ffff880230397d18
ffffffff81659f0c
[ 1198.389688] ffff880230397fd8 ffff880230397fd8 ffff880230397fd8
0000000000013780
[ 1198.389693] ffff8802321e16f0 ffff880230815bc0 ffff880230397d18
ffff88022d842800
[ 1198.389698] Call Trace:
[ 1198.389701] [] ? __schedule+0x3cc/0x6f0
[ 1198.389705] [] schedule+0x3f/0x60
[ 1198.389709] [] start_this_handle.isra.9+0x2aa/0x3e0
[ 1198.389713] [] ? add_wait_queue+0x60/0x60
[ 1198.389717] [] jbd2__journal_start+0xca/0x110
[ 1198.389722] [] jbd2_journal_start+0x13/0x20
[ 1198.389725] [] ext4_journal_start_sb+0x7f/0x1d0
[ 1198.389729] [] ? ext4_mkdir+0x11c/0x370
[ 1198.389733] [] ? kern_path_create+0x8a/0x120
[ 1198.389737] [] ext4_mkdir+0x11c/0x370
[ 1198.389741] [] vfs_mkdir+0xa1/0x110
[ 1198.389744] [] sys_mkdirat+0xe2/0xf0
[ 1198.389748] [] sys_mkdir+0x18/0x20
[ 1198.389751] [] system_call_fastpath+0x16/0x1b
[ 1198.389755] INFO: task pifs4/eio:3969 blocked for more than 120 seconds.
[ 1198.390298] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 1198.390949] pifs4/eio D ffffffff81806240 0 3969 1 0x00000000
[ 1198.390953] ffff88023020faf8 0000000000000086 ffff88023020fab8
ffffffff811a9383
[ 1198.390958] ffff88023020ffd8 ffff88023020ffd8 ffff88023020ffd8
0000000000013780
[ 1198.390963] ffff8802321e16f0 ffff880231a116f0 ffff88023020fb08
ffff88022d842800
[ 1198.390968] Call Trace:
[ 1198.390971] [] ? __getblk+0x33/0x70
[ 1198.390974] [] schedule+0x3f/0x60
[ 1198.390978] [] start_this_handle.isra.9+0x2aa/0x3e0
[ 1198.390982] [] ? add_wait_queue+0x60/0x60
[ 1198.390987] [] jbd2__journal_start+0xca/0x110
[ 1198.390991] [] jbd2_journal_start+0x13/0x20
[ 1198.390994] [] ext4_journal_start_sb+0x7f/0x1d0
[ 1198.390999] [] ? ext4_create+0x76/0x140
[ 1198.391003] [] ? ext4_lookup.part.27+0x6b/0x120
[ 1198.391007] [] ext4_create+0x76/0x140
[ 1198.391011] [] vfs_create+0xb4/0x120
[ 1198.391015] [] do_last+0x5c9/0x730
[ 1198.391018] [] path_openat+0xd1/0x3f0
[ 1198.391022] [] do_filp_open+0x42/0xa0
[ 1198.391028] [] ? strncpy_from_user+0x31/0x40
[ 1198.391032] [] ? do_getname+0x10a/0x180
[ 1198.391035] [] ? _raw_spin_lock+0xe/0x20
[ 1198.391039] [] ? alloc_fd+0xf7/0x150
[ 1198.391043] [] do_sys_open+0xed/0x220
[ 1198.391046] [] sys_openat+0x11/0x20
[ 1198.391050] [] system_call_fastpath+0x16/0x1b
[ 1198.391053] INFO: task pifs4/eio:3970 blocked for more than 120 seconds.
[ 1198.391603] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 1198.392259] pifs4/eio D ffffffff81806240 0 3970 1 0x00000000
[ 1198.392262] ffff8802302e7d08 0000000000000086 ffff8802302e7d18
ffffffff81659f0c
[ 1198.392266] ffff8802302e7fd8 ffff8802302e7fd8 ffff8802302e7fd8
0000000000013780
[ 1198.392271] ffff8802321e16f0 ffff88022de9dbc0 ffff8802302e7d18
ffff88022d842800
[ 1198.392275] Call Trace:
[ 1198.392277] [] ? __schedule+0x3cc/0x6f0
[ 1198.392280] [] schedule+0x3f/0x60
[ 1198.392284] [] start_this_handle.isra.9+0x2aa/0x3e0
[ 1198.392287] [] ? add_wait_queue+0x60/0x60
[ 1198.392291] [] jbd2__journal_start+0xca/0x110
[ 1198.392295] [] jbd2_journal_start+0x13/0x20
[ 1198.392297] [] ext4_journal_start_sb+0x7f/0x1d0
[ 1198.392301] [] ? ext4_mkdir+0x11c/0x370
[ 1198.392304] [] ? kern_path_create+0x8a/0x120
[ 1198.392308] [] ext4_mkdir+0x11c/0x370
[ 1198.392311] [] vfs_mkdir+0xa1/0x110
[ 1198.392314] [] sys_mkdirat+0xe2/0xf0
[ 1198.392317] [] sys_mkdir+0x18/0x20
[ 1198.392320] [] system_call_fastpath+0x16/0x1b
[ 1198.392322] INFO: task pifs4/eio:3973 blocked for more than 120 seconds.
[ 1198.392866] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 1198.393517] pifs4/eio D ffffffff81806240 0 3973 1 0x00000000
[ 1198.393521] ffff8801fdf0fd08 0000000000000086 ffff8801fdf0fd18
ffffffff81659f0c
[ 1198.393525] ffff8801fdf0ffd8 ffff8801fdf0ffd8 ffff8801fdf0ffd8
0000000000013780
[ 1198.393530] ffff8802321e16f0 ffff88022de9c4d0 ffff8801fdf0fd18
ffff88022d842800
[ 1198.393535] Call Trace:
[ 1198.393538] [] ? __schedule+0x3cc/0x6f0
[ 1198.393541] [] schedule+0x3f/0x60
[ 1198.393545] [] start_this_handle.isra.9+0x2aa/0x3e0
[ 1198.393549] [] ? add_wait_queue+0x60/0x60
[ 1198.393554] [] jbd2__journal_start+0xca/0x110
[ 1198.393558] [] jbd2_journal_start+0x13/0x20
[ 1198.393561] [] ext4_journal_start_sb+0x7f/0x1d0
[ 1198.393566] [] ? ext4_mkdir+0x11c/0x370
[ 1198.393569] [] ? kern_path_create+0x8a/0x120
[ 1198.393574] [] ext4_mkdir+0x11c/0x370
[ 1198.393577] [] vfs_mkdir+0xa1/0x110
[ 1198.393581] [] sys_mkdirat+0xe2/0xf0
[ 1198.393584] [] sys_mkdir+0x18/0x20
[ 1198.393588] [] system_call_fastpath+0x16/0x1b
[ 1198.393591] INFO: task pifs4/eio:3974 blocked for more than 120 seconds.
[ 1198.394132] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 1198.394791] pifs4/eio D ffffffff81806240 0 3974 1 0x00000000
[ 1198.394795] ffff8801fdf2faa8 0000000000000086 ffff880100000000
ffff8801fdf2fb20
[ 1198.394799] ffff8801fdf2ffd8 ffff8801fdf2ffd8 ffff8801fdf2ffd8
0000000000013780
[ 1198.394804] ffff8802322596f0 ffff88022de996f0 ffff8801fdf2fab8
ffff88022d842800
[ 1198.394809] Call Trace:
[ 1198.394812] [] schedule+0x3f/0x60
[ 1198.394816] [] start_this_handle.isra.9+0x2aa/0x3e0
[ 1198.394820] [] ? add_wait_queue+0x60/0x60
[ 1198.394825] [] jbd2__journal_start+0xca/0x110
[ 1198.394829] [] jbd2_journal_start+0x13/0x20
[ 1198.394832] [] ext4_journal_start_sb+0x7f/0x1d0
[ 1198.394837] [] ? ext4_rename+0x87/0x890
[ 1198.394841] [] ext4_rename+0x87/0x890
[ 1198.394845] [] ? vfsmount_lock_local_unlock+0x1e/0x30
[ 1198.394851] [] ? __kmalloc_track_caller+0x13d/0x190
[ 1198.394855] [] vfs_rename_other+0xde/0x130
[ 1198.394859] [] vfs_rename+0xbb/0x240
[ 1198.394862] [] ? __lookup_hash.part.28+0x31/0xe0
[ 1198.394866] [] ? inode_permission+0x4a/0x110
[ 1198.394870] [] sys_renameat+0x218/0x240
[ 1198.394873] [] ? get_futex_key+0x166/0x2d0
[ 1198.394877] [] ? _raw_spin_lock+0xe/0x20
[ 1198.394880] [] ? futex_wake+0x113/0x130
[ 1198.394885] [] ? eventfd_write+0x1b6/0x220
[ 1198.394889] [] ? sys_futex+0x10a/0x1a0
[ 1198.394893] [] ? vfs_write+0x110/0x180
[ 1198.394896] [] ? sys_write+0x67/0x90
[ 1198.394900] [] system_call_fastpath+0x16/0x1b
[ 1198.394903] INFO: task pifs4/eio:3975 blocked for more than 120 seconds.
[ 1198.395450] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 1198.396107] pifs4/eio D ffffffff81806240 0 3975 1 0x00000000
[ 1198.396110] ffff8801fdf31d08 0000000000000086 0000000000000000
ffff8802304dc000
[ 1198.396114] ffff8801fdf31fd8 ffff8801fdf31fd8 ffff8801fdf31fd8
0000000000013780
[ 1198.396119] ffffffff81c0d020 ffff88022e00dbc0 ffffffff81c0d020
ffff88022dc1bac0
[ 1198.396122] Call Trace:
[ 1198.396125] [] schedule+0x3f/0x60
[ 1198.396128] [] __mutex_lock_slowpath+0xd7/0x150
[ 1198.396131] [] mutex_lock+0x2a/0x50
[ 1198.396134] [] lock_rename+0x3c/0xe0
[ 1198.396137] [] sys_renameat+0x10d/0x240
[ 1198.396140] [] ? get_futex_key+0x166/0x2d0
[ 1198.396144] [] ? _raw_spin_lock+0xe/0x20
[ 1198.396147] [] ? futex_wake+0x113/0x130
[ 1198.396150] [] ? eventfd_write+0x1b6/0x220
[ 1198.396153] [] ? sys_futex+0x10a/0x1a0
[ 1198.396156] [] ? vfs_write+0x110/0x180
[ 1198.396159] [] ? sys_write+0x67/0x90
[ 1198.396162] [] system_call_fastpath+0x16/0x1b
kernlog2.txt:
[ 4071.691405] INFO: task jbd2/sdc1-8:1802 blocked for more than 120 seconds.
[ 4071.694513] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 4071.698369] jbd2/sdc1-8 D ffffffff81806240 0 1802 2 0x00000000
[ 4071.698374] ffff88010d963ce0 0000000000000046 ffff88023fd13780
000000000000023c
[ 4071.698378] ffff88010d963fd8 ffff88010d963fd8 ffff88010d963fd8
0000000000013780
[ 4071.698381] ffff8802321e16f0 ffff88021ac50000 ffff88010d963cf0
ffff88010d963df8
[ 4071.698384] Call Trace:
[ 4071.698390] [] schedule+0x3f/0x60
[ 4071.698396] []
jbd2_journal_commit_transaction+0x18a/0x1240
[ 4071.698402] [] ? _raw_spin_lock_irqsave+0x2e/0x40
[ 4071.698409] [] ? lock_timer_base.isra.29+0x38/0x70
[ 4071.698413] [] ? add_wait_queue+0x60/0x60
[ 4071.698418] [] kjournald2+0xbb/0x220
[ 4071.698422] [] ? add_wait_queue+0x60/0x60
[ 4071.698426] [] ? commit_timeout+0x10/0x10
[ 4071.698430] [] kthread+0x8c/0xa0
[ 4071.698435] [] kernel_thread_helper+0x4/0x10
[ 4071.698449] [] ? flush_kthread_worker+0xa0/0xa0
[ 4071.698454] [] ? gs_change+0x13/0x13
[ 4071.698457] INFO: task ext4lazyinit:1804 blocked for more than 120 seconds.
[ 4071.702716] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 4071.707530] ext4lazyinit D ffffffff81806240 0 1804 2 0x00000000
[ 4071.707533] ffff880230c87c30 0000000000000046 0000000000000000
0000000000000000
[ 4071.707536] ffff880230c87fd8 ffff880230c87fd8 ffff880230c87fd8
0000000000013780
[ 4071.707540] ffff8802321e16f0 ffff88021ac544d0 ffff880230c87c40
ffff880231d7b000
[ 4071.707543] Call Trace:
[ 4071.707545] [] schedule+0x3f/0x60
[ 4071.707549] [] start_this_handle.isra.9+0x2aa/0x3e0
[ 4071.707552] [] ? add_wait_queue+0x60/0x60
[ 4071.707555] [] jbd2__journal_start+0xca/0x110
[ 4071.707558] [] jbd2_journal_start+0x13/0x20
[ 4071.707561] [] ext4_journal_start_sb+0x7f/0x1d0
[ 4071.707565] [] ? ext4_init_inode_table+0xab/0x370
[ 4071.707568] [] ? try_to_del_timer_sync+0x92/0x130
[ 4071.707571] [] ext4_init_inode_table+0xab/0x370
[ 4071.707573] [] ? schedule_timeout+0x175/0x320
[ 4071.707576] [] ext4_run_li_request+0x85/0xe0
[ 4071.707579] [] ext4_lazyinit_thread+0x9c/0x1c0
[ 4071.707581] [] ? ext4_run_li_request+0xe0/0xe0
[ 4071.707584] [] kthread+0x8c/0xa0
[ 4071.707586] [] kernel_thread_helper+0x4/0x10
[ 4071.707589] [] ? flush_kthread_worker+0xa0/0xa0
[ 4071.707592] [] ? gs_change+0x13/0x13
[ 4071.707594] INFO: task pifs4/eio:7152 blocked for more than 120 seconds.
[ 4071.713389] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 4071.719407] pifs4/eio D ffffffff81806240 0 7152 1 0x00000000
[ 4071.719410] ffff88022d0559c8 0000000000000082 ffff88022d055968
ffffffff81119f55
[ 4071.719414] ffff88022d055fd8 ffff88022d055fd8 ffff88022d055fd8
0000000000013780
[ 4071.719417] ffffffff81c0d020 ffff88022e12ade0 ffff88022d0559d8
ffff880231d7b000
[ 4071.719420] Call Trace:
[ 4071.719424] [] ? mempool_alloc_slab+0x15/0x20
[ 4071.719427] [] schedule+0x3f/0x60
[ 4071.719431] [] start_this_handle.isra.9+0x2aa/0x3e0
[ 4071.719435] [] ? add_wait_queue+0x60/0x60
[ 4071.719440] [] jbd2__journal_start+0xca/0x110
[ 4071.719444] [] jbd2_journal_start+0x13/0x20
[ 4071.719448] [] ext4_journal_start_sb+0x7f/0x1d0
[ 4071.719453] [] ? ext4_dirty_inode+0x26/0x60
[ 4071.719459] [] ? scsi_finish_command+0x120/0x120
[ 4071.719465] [] ? update_curr+0x21e/0x230
[ 4071.719469] [] ext4_dirty_inode+0x26/0x60
[ 4071.719474] [] __mark_inode_dirty+0x40/0x2a0
[ 4071.719480] [] file_update_time+0xe4/0x150
[ 4071.719485] [] __generic_file_aio_write+0x1f8/0x440
[ 4071.719490] [] ? sched_clock+0x9/0x10
[ 4071.719495] [] generic_file_aio_write+0x72/0xe0
[ 4071.719499] [] ext4_file_write+0xbf/0x260
[ 4071.719504] [] ? __wake_up_common+0x58/0x90
[ 4071.719508] [] do_sync_write+0xd2/0x110
[ 4071.719513] [] ? __wake_up_locked_key+0x18/0x20
[ 4071.719519] [] ? apparmor_file_permission+0x18/0x20
[ 4071.719524] [] ? security_file_permission+0x2c/0xb0
[ 4071.719528] [] ? rw_verify_area+0x61/0xf0
[ 4071.719531] [] vfs_write+0xb3/0x180
[ 4071.719535] [] sys_write+0x4a/0x90
[ 4071.719540] [] system_call_fastpath+0x16/0x1b
[ 4071.719543] INFO: task pifs4/eio:7153 blocked for more than 120 seconds.
[ 4071.725869] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 4071.733410] pifs4/eio D ffffffff81806240 0 7153 1 0x00000000
[ 4071.733413] ffff880231b3fc58 0000000000000082 ffff88022d01301d
ffff880231b3fd40
[ 4071.733416] ffff880231b3ffd8 ffff880231b3ffd8 ffff880231b3ffd8
0000000000013780
[ 4071.733419] ffff8802322196f0 ffff88022f5896f0 ffff880231b3fc68
ffff880231d7b000
[ 4071.733423] Call Trace:
[ 4071.733425] [] schedule+0x3f/0x60
[ 4071.733428] [] start_this_handle.isra.9+0x2aa/0x3e0
[ 4071.733431] [] ? add_wait_queue+0x60/0x60
[ 4071.733434] [] jbd2__journal_start+0xca/0x110
[ 4071.733437] [] jbd2_journal_start+0x13/0x20
[ 4071.733441] [] ext4_journal_start_sb+0x7f/0x1d0
[ 4071.733446] [] ? ext4_rmdir+0x69/0x250
[ 4071.733451] [] ? path_lookupat+0x6d/0x750
[ 4071.733455] [] ? _raw_spin_lock+0xe/0x20
[ 4071.733460] [] ext4_rmdir+0x69/0x250
[ 4071.733464] [] vfs_rmdir.part.27+0xb7/0x110
[ 4071.733468] [] vfs_rmdir+0x3f/0x60
[ 4071.733472] [] do_rmdir+0x12a/0x130
[ 4071.733476] [] ? vfs_write+0x110/0x180
[ 4071.733480] [] sys_rmdir+0x16/0x20
[ 4071.733484] [] system_call_fastpath+0x16/0x1b
[ 4071.733488] INFO: task pifs4/eio:7170 blocked for more than 120 seconds.
[ 4071.741067] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 4071.749709] pifs4/eio D ffffffff81806240 0 7170 1 0x00000000
[ 4071.749711] ffff88010d8539c8 0000000000000082 ffff88010d853968
ffffffff81119f55
[ 4071.749715] ffff88010d853fd8 ffff88010d853fd8 ffff88010d853fd8
0000000000013780
[ 4071.749718] ffff8802322196f0 ffff88022e1296f0 ffff88010d8539d8
ffff880231d7b000
[ 4071.749721] Call Trace:
[ 4071.749724] [] ? mempool_alloc_slab+0x15/0x20
[ 4071.749727] [] schedule+0x3f/0x60
[ 4071.749730] [] start_this_handle.isra.9+0x2aa/0x3e0
[ 4071.749735] [] ? add_wait_queue+0x60/0x60
[ 4071.749739] [] jbd2__journal_start+0xca/0x110
[ 4071.749744] [] jbd2_journal_start+0x13/0x20
[ 4071.749748] [] ext4_journal_start_sb+0x7f/0x1d0
[ 4071.749752] [] ? ext4_dirty_inode+0x26/0x60
[ 4071.749757] [] ext4_dirty_inode+0x26/0x60
[ 4071.749761] [] __mark_inode_dirty+0x40/0x2a0
[ 4071.749766] [] file_update_time+0xe4/0x150
[ 4071.749771] [] __generic_file_aio_write+0x1f8/0x440
[ 4071.749775] [] ? _raw_spin_lock+0xe/0x20
[ 4071.749779] [] generic_file_aio_write+0x72/0xe0
[ 4071.749783] [] ext4_file_write+0xbf/0x260
[ 4071.749788] [] ? futex_wait+0x15f/0x210
[ 4071.749792] [