From: Felipe Wilhelms Damasio - Taghos <felipewd@taghos.com.br>
To: Theodore Ts'o <tytso@mit.edu>, Andreas Dilger <adilger@sun.com>,
linux-ext4@vger.kernel.org
Subject: Re: Ext4 flush blocked
Date: Thu, 14 Jul 2011 22:27:50 -0300 [thread overview]
Message-ID: <4E1F9796.5020107@taghos.com.br> (raw)
In-Reply-To: <4E1F95B8.4050005@taghos.com.br>
Hi Again,
Em 14/07/2011 22:19, Felipe Wilhelms Damasio - Taghos escreveu:
> After a while using (about an hour) I get a lot of:
>
> INFO: task flush-8:16:6650 blocked for more than 120 seconds.
I also saw this:
INFO: task jbd2/sdb1-8:1672 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
jbd2/sdb1-8 D 0000000000000004 0 1672 2 0x00000000
ffff88042e171aa0 0000000000000046 0000000000012500 ffff88042e171fd8
ffff88042e171fd8 ffff88042c2eadf0 0000000000012500 0000000000012500
0000000000012500 ffff88042c2eadf0 ffff88042e0d0690 ffff88042c2eb098
Call Trace:
[<ffffffff8151c837>] io_schedule+0x7b/0xc2
[<ffffffff8108fceb>] sync_page+0x41/0x45
[<ffffffff8151cc1a>] __wait_on_bit+0x47/0x79
[<ffffffff8108fcaa>] ? sync_page+0x0/0x45
[<ffffffff8108fea1>] wait_on_page_bit+0x6e/0x75
[<ffffffff8104ed1c>] ? wake_bit_function+0x0/0x2a
[<ffffffff81097a36>] ? pagevec_lookup_tag+0x22/0x2b
[<ffffffff810965cb>] write_cache_pages+0x1d5/0x2e9
[<ffffffff81095ee0>] ? __writepage+0x0/0x2f
[<ffffffff810966fe>] generic_writepages+0x1f/0x25
[<ffffffff8114251d>] jbd2_journal_commit_transaction+0x35b/0x10b2
[<ffffffff81035288>] ? get_parent_ip+0x11/0x41
[<ffffffff811468bf>] kjournald2+0xd2/0x22b
[<ffffffff8104ece4>] ? autoremove_wake_function+0x0/0x38
[<ffffffff8151dbdf>] ? _raw_spin_unlock_irqrestore+0x2c/0x37
[<ffffffff811467ed>] ? kjournald2+0x0/0x22b
[<ffffffff8104e892>] kthread+0x7d/0x85
[<ffffffff810037d4>] kernel_thread_helper+0x4/0x10
[<ffffffff8104e815>] ? kthread+0x0/0x85
[<ffffffff810037d0>] ? kernel_thread_helper+0x0/0x10
Don't know if this helps, though.
Is there something I can try to fix this?
Cheers,
--
Felipe Wilhelms Damasio
TAGHOS - Tecnologia
Rua Prof. Alvaro Alvim, 211
Porto Alegre - RS - (51) 3239-3180
www.taghos.com.br <http://www.taghos.com.br/>
next parent reply other threads:[~2011-07-15 1:38 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4E1F95B8.4050005@taghos.com.br>
2011-07-15 1:27 ` Felipe Wilhelms Damasio - Taghos [this message]
2011-07-15 3:31 ` Ext4 flush blocked Tao Ma
2011-07-17 18:54 ` Felipe Wilhelms Damasio - Taghos
2011-07-15 1:33 Felipe Wilhelms Damasio - Taghos
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