Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755487AbZCKO27 (ORCPT ); Wed, 11 Mar 2009 10:28:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752319AbZCKO2s (ORCPT ); Wed, 11 Mar 2009 10:28:48 -0400 Received: from g5t0008.atlanta.hp.com ([15.192.0.45]:32235 "EHLO g5t0008.atlanta.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751957AbZCKO2r (ORCPT ); Wed, 11 Mar 2009 10:28:47 -0400 Message-ID: <49B7CA96.2040302@hp.com> Date: Wed, 11 Mar 2009 10:28:38 -0400 From: "Alan D. Brunelle" User-Agent: Thunderbird 2.0.0.19 (X11/20090105) MIME-Version: 1.0 To: Nick Piggin CC: Christoph Lameter , "linux-kernel@vger.kernel.org" , Pekka Enberg , mpm@selenic.com, linux-mm@kvack.org Subject: Re: PROBLEM: kernel BUG at mm/slab.c:3002! References: <49B68450.9000505@hp.com> <20090311022107.GB16561@wotan.suse.de> In-Reply-To: <20090311022107.GB16561@wotan.suse.de> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1420 Lines: 33 Nick Piggin wrote: > On Tue, Mar 10, 2009 at 01:40:02PM -0400, Christoph Lameter wrote: >> Oh nice memory corruption. May have something to do with the vmap work by >> Nick. > > Hmm, it might but I can't really tell. It happens in the vmap code > when kmallocing something, but it isn't obviously causing it AFAIKS. > > Could you print out the values of the fields involved in the BUG()? > That might give some clues... > -- > 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/ > FYI: The current assumption is that there is a hardware issue here resulting in corrupted memory. We are seeing some odd things in the hardware logs (but Linux apparently is /not/ detecting anything - no bad pages reported, for example). We tried a firmware update for the platform, but that did not fix things. My next steps are to see what kind of platform diagnostics are available, and I'm also trying to acquire another system to try the tests on (to see if they reproduce or not). Alan -- 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/