linux-kernel - 2.6.30-rc6: reiserfs blocked for more than 120secs

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Date:	Sat, 23 May 2009 10:52:24 +0200
From:	Harald Dunkel <harald.dunkel@...nline.de>
To:	Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: 2.6.30-rc6: reiserfs blocked for more than 120secs

Hi folks,

I got this for 2.6.30-rc6 (amd64):

[16201.331032] INFO: task reiserfs/0:1216 blocked for more than 120 seconds.
[16201.331035] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[16201.331037] reiserfs/0    D ffff8801201486f0     0  1216      2
[16201.331042]  ffff8801201486f0 0000000000000046 0000000000004000 0000000000010940
[16201.331046]  000000000000cfa8 0000000000004000 0000000000010940 000000000000cfa8
[16201.331050]  ffff880120148998 00000000787f2080 ffff88012fb92cd0 ffff880120148998
[16201.331054] Call Trace:
[16201.331061]  [<ffffffff8020c4fe>] ? apic_timer_interrupt+0xe/0x20
[16201.331067]  [<ffffffff80452f7e>] ? __mutex_lock_slowpath+0xfb/0x171
[16201.331070]  [<ffffffff80452df4>] ? mutex_lock+0x12/0x28
[16201.331093]  [<ffffffffa01505b1>] ? flush_commit_list+0x146/0x624 [reiserfs]
[16201.331097]  [<ffffffff80452829>] ? thread_return+0x3e/0xab
[16201.331111]  [<ffffffffa0150561>] ? flush_commit_list+0xf6/0x624 [reiserfs]
[16201.331124]  [<ffffffffa0150b26>] ? flush_async_commits+0x0/0x4b [reiserfs]
[16201.331145]  [<ffffffffa0150b68>] ? flush_async_commits+0x42/0x4b [reiserfs]
[16201.331150]  [<ffffffff8024b084>] ? worker_thread+0x1a6/0x24e
[16201.331154]  [<ffffffff8024eb4e>] ? autoremove_wake_function+0x0/0x2e
[16201.331157]  [<ffffffff8024aede>] ? worker_thread+0x0/0x24e
[16201.331160]  [<ffffffff8024aede>] ? worker_thread+0x0/0x24e
[16201.331163]  [<ffffffff8024e72c>] ? kthread+0x54/0x80
[16201.331166]  [<ffffffff8020c9ea>] ? child_rip+0xa/0x20
[16201.331169]  [<ffffffff8024e6d8>] ? kthread+0x0/0x80
[16201.331172]  [<ffffffff8020c9e0>] ? child_rip+0x0/0x20

It seems to be still working, though. I got this only once by now.


Please mail if I can help to debug this problem.


Regards

Harri



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