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Message-ID: <20081106101521.GB25194@skywalker> Date: Thu, 6 Nov 2008 15:45:21 +0530 From: "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com> To: Theodore Tso <tytso@....edu> Cc: Solofo.Ramangalahy@...l.net, Jindrich Makovicka <makovick@...il.com>, linux-ext4@...r.kernel.org Subject: Re: data corruption with ext4 (from 2.6.27.4) exposed by rtorrent On Wed, Nov 05, 2008 at 03:42:23PM -0500, Theodore Tso wrote: > On Wed, Nov 05, 2008 at 09:21:00PM +0100, Solofo.Ramangalahy@...l.net wrote: > > Solofo.Ramangalahy@...l.net writes: > > > > The next question is whether the problem is more easily triggerred > > > > when under memory pressure. > > > > > > I was currently testing other kernels, but, right, I will retest with more memory. > > > > with -m 2048 I do not observe the problem. > > > > I should add that with 2.6.28-rc3 + ext4 patch queue, I am observing > > what seems to be lockdep bug: > > [ 31.603020] BUG: key c9f315a8 not in .data! > > Aneesh has some new patches in the ext4 patch queue that add new > lockdep annotations. I'm guessing there's a problem there. Aneesh, > can you look into this? Solofo, can you send the .config you used > in case it was unique to replicating the problem? The patch aneesh-9-fix-lockdeep-recursive-locking-warning should add the key in .data. Do you have a stack trace ? Can you find out which lock the lockdep is warning about -aneesh -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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