Kernel panic due to blocked tasks while ext3 scans group descriptors
Issue
- System panicked with this stack trace:
INFO: task kjournald:1237 blocked for more than 120 seconds.
Not tainted 2.6.32-431.5.1.el6.x86_64 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kjournald D 0000000000000002 0 1237 2 0x00000080
ffff880339379d50 0000000000000046 ffff88033b279540 ffffffff8160bf40
0000000000000001 ffff88033fc23280 ffff880339379da0 ffffffff81060b13
ffff880335dcb058 ffff880339379fd8 000000000000fbc8 ffff880335dcb058
Call Trace:
[<ffffffff81060b13>] ? perf_event_task_sched_out+0x33/0x70
[<ffffffff8109b5be>] ? prepare_to_wait+0x4e/0x80
[<ffffffffa01916f1>] journal_commit_transaction+0x161/0x1310 [jbd]
[<ffffffff8109b290>] ? autoremove_wake_function+0x0/0x40
[<ffffffff81084d0b>] ? try_to_del_timer_sync+0x7b/0xe0
[<ffffffffa0196fe8>] kjournald+0xe8/0x250 [jbd]
[<ffffffff8109b290>] ? autoremove_wake_function+0x0/0x40
[<ffffffffa0196f00>] ? kjournald+0x0/0x250 [jbd]
[<ffffffff8109aee6>] kthread+0x96/0xa0
[<ffffffff8100c20a>] child_rip+0xa/0x20
[<ffffffff8109ae50>] ? kthread+0x0/0xa0
[<ffffffff8100c200>] ? child_rip+0x0/0x20
Environment
- Red Hat Enterprise Linux 6.5
- ext3
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