linux-ext4 - [Bug 12579] ext4 filesystem hang

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Message-Id: <20090214020728.8361711D10A@picon.linux-foundation.org>
Date:	Fri, 13 Feb 2009 18:07:28 -0800 (PST)
From:	bugme-daemon@...zilla.kernel.org
To:	linux-ext4@...r.kernel.org
Subject: [Bug 12579] ext4 filesystem hang

http://bugzilla.kernel.org/show_bug.cgi?id=12579

------- Comment #10 from tytso@....edu  2009-02-13 18:07 -------
> Patch from Aneesh, un-whitespace-mangled.
> 
> Ted, can you push this out?  Works great.  :) We might want to ask
> the other reporter of something similar (next-20090206: deadlock on
> ext4) to test it too.  I'll ping him.

Do we completely understand the root cause, in terms of which commit
broken the mm/page-writeback.c code we were depending on?  And if so,
what of the code in mm/page-writeback.c?  Does anyone else use it?
Can anyone sanely use it?

And am I right in assuming that this only applies to 2.6.29-rcX
kernels, and is not needed for 2.6.28 or earlier kernels?

I hadn't yet pushed it out because I needed time to understand all of
these issues, hence these questions....

                                                - Ted

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