From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262024AbVHFIEo (ORCPT ); Sat, 6 Aug 2005 04:04:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261259AbVHFIEn (ORCPT ); Sat, 6 Aug 2005 04:04:43 -0400 Received: from ctb-mesg5.saix.net ([196.25.240.85]:43428 "EHLO ctb-mesg5.saix.net") by vger.kernel.org with ESMTP id S262024AbVHFIBz (ORCPT ); Sat, 6 Aug 2005 04:01:55 -0400 Message-ID: <42F46E64.90502@cs.up.ac.za> Date: Sat, 06 Aug 2005 10:01:40 +0200 From: Jaco Kroon User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.7.10) Gecko/20050804 X-Accept-Language: en, af, en-gb, en-us MIME-Version: 1.0 To: Mike Galbraith Cc: linux-kernel@vger.kernel.org, techteam@cs.up.ac.za Subject: Re: sporadic "freezes" on amd64 (GA K8NF) References: <5.2.1.1.2.20050806081410.00bf46b8@pop.gmx.net> In-Reply-To: <5.2.1.1.2.20050806081410.00bf46b8@pop.gmx.net> Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------ms050900010702070904060306" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This is a cryptographically signed message in MIME format. --------------ms050900010702070904060306 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Mike Galbraith wrote: > At 10:33 PM 8/5/2005 +0200, you wrote: > >> Hello all, >> >> I'm absolutely stumped with this one. We are still having problems >> deciding whether this is a software problem or a hardware problem. > > Given the number of kernels it freezes under, I'd say hardware. That is what we thought too, initially. I'm still tending towards this option but we just don't know any more. Considering that Windows runs just fine. Even under heavy workload. Although - compiling tends to be some of the most rigurous hardware chowing work there is (Used to use compiling glibc as a test on how stable my old pentium 90 was - usually had to cross-compile it in the end). Anyway, we're unable to get Windows to compile for extended periods of time, mostly because we simply do not have any projects available to us that is big enough. Can always try installing cygwin and using one or another opensource project (MySQL for example). >> This >> particular box (specs lower down) just freezes up sporadically when in >> Linux. > > You failed to describe the workload. Of course I did. Compiling the kernel. It's probably the most reliable way of crashing it. make mrproper && make allyesconfig && make - give it about 2 to 5 minutes and it's dead. We also got in a couple of times to die within about 10 seconds, as in KSYM was the only thing that remained that still had to pass, so we would type make, it would do a couple of checks (CHK I assume is for check) and the KSYM, at which point it would just die. >> Normally it just stops responding entirely. As in one moment it's still >> outputting and the next there is nothing. Then once, (twice actually), >> we actually got a kernel panic, I've taken a picture which can be found >> at http://www.kroon.co.za/images/kernel_panic_amd64.jpg (Apologies for >> the quality - phones aren't good at taking them). > > Try a serial console for capture. I never did manage to get that right. I've still got the cable from my previous attempts, guess I'll be trying again. >> From this panic (and >> the other which I had no way of capturing at the time) it looks like a >> bug somewhere when accessing the hard drive. The one here was on >> reiserfs the other was on ext3. > > > The first thing than comes to mind is cooling. The next thing I'd > suspect is the power supply. After verifying that these are in fact not > the problem, I'd try a different disk controller. I doubt it's cooling - after resetting the BIOS claims <40 degree celcius temperatures so I'll try another power supply. Although, I suspect it already is a 400W in there. 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