Bug 180091 - INFO: task sync:3848 blocked for more than 120 seconds.
Summary: INFO: task sync:3848 blocked for more than 120 seconds.
Status: NEW
Alias: None
Product: IO/Storage
Classification: Unclassified
Component: Serial ATA (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Tejun Heo
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-10-24 00:24 UTC by Cristian Aravena Romero
Modified: 2016-10-24 00:24 UTC (History)
0 users

See Also:
Kernel Version: Ubuntu 4.8.0-26.28-generic 4.8.0
Subsystem:
Regression: No
Bisected commit-id:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Description Cristian Aravena Romero 2016-10-24 00:24:43 UTC 
Open bug in launchpad.net
https://bugs.launchpad.net/bugs/1636035



dmesg:
[ 1692.816788] INFO: task sync:3848 blocked for more than 120 seconds.
[ 1692.816799] Not tainted 4.8.0-26-generic #28-Ubuntu
[ 1692.816803] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1692.816806] sync D ffff9b1402333db8 0 3848 2725 0x00000000
[ 1692.816818] ffff9b1402333db8 00ffffffac45f6b8 ffff9b16c8182ac0 ffff9b145bef4740
[ 1692.816824] 7fffffffffffffff ffff9b1402334000 ffff9b16c89eb130 ffff9b16c89eade8
[ 1692.816829] ffff9b1402333e4c ffff9b16cdd7b870 ffff9b1402333dd0 ffffffffaca9a855
[ 1692.816834] Call Trace:
[ 1692.816848] [<ffffffffaca9a855>] schedule+0x35/0x80
[ 1692.816855] [<ffffffffac45fe08>] wb_wait_for_completion+0x58/0xa0
[ 1692.816860] [<ffffffffac2c73a0>] ? wake_atomic_t_function+0x60/0x60
[ 1692.816865] [<ffffffffac461dc9>] sync_inodes_sb+0xa9/0x2a0
[ 1692.816871] [<ffffffffac4687a5>] sync_inodes_one_sb+0x15/0x20
[ 1692.816876] [<ffffffffac436b5c>] iterate_supers+0xbc/0x110
[ 1692.816881] [<ffffffffac468790>] ? SyS_tee+0x3e0/0x3e0
[ 1692.816886] [<ffffffffac468b04>] sys_sync+0x44/0xb0
[ 1692.816892] [<ffffffffaca9f076>] entry_SYSCALL_64_fastpath+0x1e/0xa8
[ 1813.662393] INFO: task sync:3848 blocked for more than 120 seconds.
[ 1813.662402] Not tainted 4.8.0-26-generic #28-Ubuntu
[ 1813.662405] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1813.662408] sync D ffff9b1402333db8 0 3848 2725 0x00000000
[ 1813.662417] ffff9b1402333db8 00ffffffac45f6b8 ffff9b16c8182ac0 ffff9b145bef4740
[ 1813.662422] 7fffffffffffffff ffff9b1402334000 ffff9b16c89eb130 ffff9b16c89eade8
[ 1813.662427] ffff9b1402333e4c ffff9b16cdd7b870 ffff9b1402333dd0 ffffffffaca9a855
[ 1813.662431] Call Trace:
[ 1813.662443] [<ffffffffaca9a855>] schedule+0x35/0x80
[ 1813.662449] [<ffffffffac45fe08>] wb_wait_for_completion+0x58/0xa0
[ 1813.662453] [<ffffffffac2c73a0>] ? wake_atomic_t_function+0x60/0x60
[ 1813.662457] [<ffffffffac461dc9>] sync_inodes_sb+0xa9/0x2a0
[ 1813.662462] [<ffffffffac4687a5>] sync_inodes_one_sb+0x15/0x20
[ 1813.662466] [<ffffffffac436b5c>] iterate_supers+0xbc/0x110
[ 1813.662470] [<ffffffffac468790>] ? SyS_tee+0x3e0/0x3e0
[ 1813.662474] [<ffffffffac468b04>] sys_sync+0x44/0xb0
[ 1813.662479] [<ffffffffaca9f076>] entry_SYSCALL_64_fastpath+0x1e/0xa8
Note You need to log in before you can comment on or make changes to this bug.