From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750850AbWBIX4A (ORCPT ); Thu, 9 Feb 2006 18:56:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750851AbWBIX4A (ORCPT ); Thu, 9 Feb 2006 18:56:00 -0500 Received: from ws6-1.us4.outblaze.com ([205.158.62.196]:59595 "HELO ws6-1.us4.outblaze.com") by vger.kernel.org with SMTP id S1750849AbWBIX4A (ORCPT ); Thu, 9 Feb 2006 18:56:00 -0500 Message-ID: <43EBD67E.9020308@acm.org> Date: Thu, 09 Feb 2006 23:55:42 +0000 From: Dave Spring User-Agent: Mozilla Thunderbird 1.0.7 (Windows/20050923) X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: Re: PROBLEM: kernel BUG at mm/rmap.c:486 - kernel 2.6.15-r1 References: <43E0FC55.6080503@acm.org> In-Reply-To: <43E0FC55.6080503@acm.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Antivirus: avast! (VPS 0606-3, 09/02/2006), Outbound message X-Antivirus-Status: Clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Just for closure's sake: This turned out to be a hardware problem. Memtest86+ http://www.memtest.org/ found an intermittent and pattern-sensitive memory error, and only appearing at one or two random locations within the 256M module. Replacing the dodgy RAM module did the trick. Dave Spring wrote: >>> running kernels with or without PREEMPT enabled. >>> >> If you don't actually *need* accelerated 3D (or if you could do >> without it for a while), switching to the "nv" driver for a few >> days/weeks would be interresting. If the crashes go away that would >> point towards the nvidia driver, if they don't go away we'll get a >> nice untainted crash report. > > > It's not the nv drivers - or at least not just them. > I'm getting this bug once or twice a day on a mini-ITX (C3 533Mhz > processor) based server which doesn't even have X installed. > For me, it appeared sometime after 2.6.12. > I'm now running with gentoo 2.6.15-r1 with Hugh's recently posted patch, > and waiting 8-| > > Dave Spring