From: Eric Sandeen Subject: Re: [Bug 14354] Re: ext4 increased intolerance to unclean shutdown? Date: Fri, 30 Oct 2009 08:54:27 -0500 Message-ID: <4AEAF013.60300@redhat.com> References: <20091016091558.GA10184@mit.edu> <20091027101534.GA27584@skywalker.linux.vnet.ibm.com> <4AEA0B71.5050805@redhat.com> <20091030081602.GM18464@mit.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: Theodore Tso , Eric Sandeen , Parag Warudkar , "Aneesh Kumar K.V" , LKML Received: from mx1.redhat.com ([209.132.183.28]:44266 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757253AbZJ3Nyc (ORCPT ); Fri, 30 Oct 2009 09:54:32 -0400 In-Reply-To: <20091030081602.GM18464@mit.edu> Sender: linux-ext4-owner@vger.kernel.org List-ID: Theodore Tso wrote: > On Thu, Oct 29, 2009 at 04:38:57PM -0500, Eric Sandeen wrote: >> I've been running my testcase, and I just hit the usual corruption with >> this patch in place after 8 iterations, I'm afraid. > > Eric, since you have a relatively controllable reproduction case, have > you tried reproducing Alexey's bisection results? Specifically he > seemed to find that commit fe188c0e shows no problem, and commit > 91ac6f43 is the first commit with problems? I can try it but I have very little faith in that result to be honest. > Having to do multiple iterations will make doing a bisection a major > pain, but maybe we'll get something out of that. Well I've been doing bisects but I'm getting skeptical of the results; either my testcase isn't reliable enough or all the merges are confusing git-bisect (?) Anyway it keeps ending up on nonsensical commits. > Other things that might be worth doing given that you have a test case > would be to try reverting commit 91ac6f43, and see if that helps, and > to try this patch: http://bugzilla.kernel.org/attachment.cgi?id=23468 > > Or have you tried some of these experiments already? > > Regards, > > - Ted After talking to Aneesh last night, I think other good spot-checks will be to revert 487caeef9fc08c0565e082c40a8aaf58dad92bbb, and to test Jan's sync patches. -Eric