Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761319AbXJENl3 (ORCPT ); Fri, 5 Oct 2007 09:41:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755890AbXJENlV (ORCPT ); Fri, 5 Oct 2007 09:41:21 -0400 Received: from ecfrec.frec.bull.fr ([129.183.4.8]:42952 "EHLO ecfrec.frec.bull.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752251AbXJENlU (ORCPT ); Fri, 5 Oct 2007 09:41:20 -0400 Message-ID: <47063EF3.4050302@bull.net> Date: Fri, 05 Oct 2007 15:41:07 +0200 From: Valerie Clement User-Agent: Thunderbird 1.5.0.4 (Windows/20060516) MIME-Version: 1.0 To: Badari Pulavarty Cc: Linux Kernel Mailing List , ext4 development Subject: Re: 2.6.23-rc9: Oops in cache_alloc_refill() mm/slab.c References: <4705113A.7030908@bull.net> <1191534231.6106.99.camel@dyn9047017100.beaverton.ibm.com> In-Reply-To: <1191534231.6106.99.camel@dyn9047017100.beaverton.ibm.com> X-MIMETrack: Itemize by SMTP Server on ECN002/FR/BULL(Release 5.0.12 |February 13, 2003) at 05/10/2007 15:47:28, Serialize by Router on ECN002/FR/BULL(Release 5.0.12 |February 13, 2003) at 05/10/2007 15:47:29, Serialize complete at 05/10/2007 15:47:29 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8; format=flowed Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 885 Lines: 25 Badari Pulavarty wrote: > On Thu, 2007-10-04 at 18:13 +0200, Valerie Clement wrote: >> While running ffsb tests on my ext4 filesystem, I got an Oops in >> cache_alloc_refill(). >> I turned on SLAB debugging and here is the message I got: >> >> slab: Internal list corruption detected in cache 'buffer_head'(30), >> slabp ffff81007e100100(1515870810). Hexdump: > > slabp->inuse = 1515870810 looks bogus. Is this easily reproducible ? Hi Badari, Thanks for your answer. I didn't reproduce it without the latest ext4 patches. So I suspect a bug in one of them. But how debugging this? Which other debug traces can I turn on? Valérie - 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/