From: bugme-daemon@bugzilla.kernel.org
Subject: [Bug 12885] kernel BUG at fs/jbd/transaction.c:1376!
Date: Wed, 18 Mar 2009 10:45:08 -0700 (PDT)
Message-ID: <20090318174508.8C43810800E@picon.linux-foundation.org>
References: <bug-12885-13602@http.bugzilla.kernel.org/>
To: linux-ext4@vger.kernel.org
In-Reply-To: <bug-12885-13602@http.bugzilla.kernel.org/>
Sender: linux-ext4-owner@vger.kernel.org

http://bugzilla.kernel.org/show_bug.cgi?id=12885


------- Comment #8 from tytso@mit.edu  2009-03-18 10:45 -------
One interesting thing you could try, if you can go to 2.6.29-rc8, is you could
try mounting your ext3 filesystem using ext4, and see if the problem goes away
or not.   If the problem sticks around, then that's actually very interesting,
since so much has changed between ext3 and ext4.  If it goes away, that could
be a solution for you, but it also could be that it's just harder to reproduce
on ext4.

This smells like a bug in jbd layer, or perhaps some assumption which is
getting violated by LUKS; since if it was as simple as just doing a backup of a
tree while another process was copying data into it, ext3 is such a commonly
used file system that I would have thought such a problem would have been
discovered by now.  So if we have something like this which can be easily
reproduced, I really want to try to get it chased down.

Thanks,


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