RHEL 6 System hangs as command stuck in cciss driver (HP Smart Array controller)
Issue
- Server is frequently getting hung and showing the below message on the console:
INFO: task jbd2/dm-6-8:865 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.
jbd2/dm-6-8 D 0000000000000002 0 865 2 0x00000000
ffff88007a615d20 0000000000000046 0000000000016840 0000000000016840
ffff880002210980 0000000000016840 0000000000016840 ffff88007d7f6aa0
ffff88007d7f7058 ffff88007a615fd8 000000000000fbc8 ffff88007d7f7058
Call Trace:
[<ffffffff8109b5be>] ? prepare_to_wait+0x4e/0x80
[<ffffffffa008f80f>] jbd2_journal_commit_transaction+0x19f/0x1500 [jbd2]
[<ffffffff810096f0>] ? __switch_to+0xd0/0x320
[<ffffffff8108410c>] ? lock_timer_base+0x3c/0x70
[<ffffffff8109b290>] ? autoremove_wake_function+0x0/0x40
[<ffffffffa0095a48>] kjournald2+0xb8/0x220 [jbd2]
[<ffffffff8109b290>] ? autoremove_wake_function+0x0/0x40
[<ffffffffa0095990>] ? kjournald2+0x0/0x220 [jbd2]
[<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
- HP Smart Array 6i (cciss driver, firmware version 2.36)
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