linux-ext4 - Re: [Bug 12579] ext4 filesystem hang

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Message-ID: <20090214015018.GB26628@mini-me.lan>
Date:	Fri, 13 Feb 2009 20:50:18 -0500
From:	Theodore Tso <tytso@....edu>
To:	bugme-daemon@...zilla.kernel.org
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [Bug 12579] ext4 filesystem hang

> 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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