Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753444AbZGDNDt (ORCPT ); Sat, 4 Jul 2009 09:03:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752808AbZGDNDj (ORCPT ); Sat, 4 Jul 2009 09:03:39 -0400 Received: from courier.cs.helsinki.fi ([128.214.9.1]:60226 "EHLO mail.cs.helsinki.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752716AbZGDNDi (ORCPT ); Sat, 4 Jul 2009 09:03:38 -0400 Message-ID: <4A4F5211.10806@cs.helsinki.fi> Date: Sat, 04 Jul 2009 15:58:57 +0300 From: Pekka Enberg User-Agent: Thunderbird 2.0.0.22 (Macintosh/20090605) MIME-Version: 1.0 To: bugzilla-daemon@bugzilla.kernel.org, LKML , bplant@iinet.net.au, Andrew Morton , mfasheh@suse.com, joel.becker@oracle.com Subject: Re: [Bug 13631] BUG/panic - update_curr References: <200907031523.n63FN96i031564@demeter.kernel.org> In-Reply-To: <200907031523.n63FN96i031564@demeter.kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1334 Lines: 34 Hi Brad, bugzilla-daemon@bugzilla.kernel.org wrote: > --- Comment #14 from Brad Plant 2009-07-03 15:23:06 --- > Created an attachment (id=22193) > --> (http://bugzilla.kernel.org/attachment.cgi?id=22193) > BUG kmalloc-16: Redzone overwritten > > (In reply to comment #13) >> Looking at the bug report, I'd be pretty surprised if this would be a >> SLUB bug. It seems more likely that there's some memory corruption going >> on under heavy load and SLAB just happens to have a different layout of >> slab objects or something. >> >> Did you run the test with CONFIG_SLAB_DEBUG, btw? > > I tried slub debugging first. I tried to make it crash for a while but of > course it wouldn't do it when I wanted it to. I had given up on trying to crash > slub and was just rebooting the node to change the kernel when I hit the > jackpot. > > Does this suggest ocfs2 is corrupting the memory? Yup, that would be the prime suspect here. Lets cc ocfs2 developers and LKML. The corruption can be found here: http://bugzilla.kernel.org/attachment.cgi?id=22193 Pekka -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/