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[xfs-masters] [Bug 10582] INFO: task pdflush:27505 blocked for more than

To: xfs-masters@xxxxxxxxxxx
Subject: [xfs-masters] [Bug 10582] INFO: task pdflush:27505 blocked for more than 120 seconds.
From: bugme-daemon@xxxxxxxxxxxxxxxxxxx
Date: Thu, 1 May 2008 03:14:08 -0700 (PDT)
In-reply-to: <bug-10582-470@http.bugzilla.kernel.org/>
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http://bugzilla.kernel.org/show_bug.cgi?id=10582





------- Comment #4 from dgc@xxxxxxx  2008-05-01 03:14 -------
Just to address you lkml post - you should post XFS bug reports
to xfs@xxxxxxxxxxx, otherwise they may not be seen. if you do
post to lkml, putting "XFS" in the subject line means it will
probably be noticed by the XFS folk. Better is "[BUG, XFS] <rest of subject>".

As it is, it looks this commit:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=bad5584332e888ac40ca13584e8c114149ddb01e

is using the wrong allocation primitive - it's allowing memory
reclaim to recurse into the filesystem and then deadlocking.
I'll attach a patch to fix it in a second.

BTW, thanks for reporting the bug with all the relevant info.


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