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Message-Id: <20121126083418.8E43A11FB7E@bugzilla.kernel.org>
Date: Mon, 26 Nov 2012 08:34:18 +0000 (UTC)
From: bugzilla-daemon@...zilla.kernel.org
To: linux-ext4@...r.kernel.org
Subject: [Bug 50981] ext4 : DATA CORRUPTION read and write on same 4096 page
range
https://bugzilla.kernel.org/show_bug.cgi?id=50981
Lukas Czerner <lczerner@...hat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |lczerner@...hat.com
--- Comment #2 from Lukas Czerner <lczerner@...hat.com> 2012-11-26 08:34:18 ---
This is present upstream as well (3.7.0-rc7). In fact it is not even ext4
specific. I can easily reproduce this on btrfs, ext3, vfat. I suspect that this
would be reproducible on every file system which does not implement its own
read/write exclusion as xfs does.
MM people should really take a look at this as well since we are expecting the
read/write to/from the single page to be atomic, but this looks like that it
might not be true.
Thanks!
-Lukas
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