Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756578AbXFPVCz (ORCPT ); Sat, 16 Jun 2007 17:02:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752776AbXFPVCq (ORCPT ); Sat, 16 Jun 2007 17:02:46 -0400 Received: from ns3.baby-dragons.com ([204.91.156.41]:57005 "EHLO ns3.baby-dragons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753197AbXFPVCp (ORCPT ); Sat, 16 Jun 2007 17:02:45 -0400 X-Greylist: delayed 1311 seconds by postgrey-1.27 at vger.kernel.org; Sat, 16 Jun 2007 17:02:45 EDT Date: Sat, 16 Jun 2007 13:40:53 -0700 (PDT) From: "Mr. James W. Laferriere" To: Linux Kernel Maillist Subject: Machine Check Exception: 0...04 Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.1.8 (ns3.baby-dragons.com [204.91.156.41]); Sat, 16 Jun 2007 20:40:53 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1740 Lines: 41 Hello All , Does anoyone know howto identify a cause for these(*) ? Or of any tools to help in the identification of the cause ? So far the Machine checks only happen when I am running bonnie++ against my software raid6 array . I have done everything I know to do to attempt to ascertain what is causing the machine checks . ie: 1) memtest86+ for days , no errors . 2) cpuburnP6 , The tests run were 'cpuburnP6 E' & 'cpuburnP6 H' for ~ 60 minutes each . All CPU's & HT were at 96+<->100% for 60+ Minutes , no excessive heating or lockups . In single user mode of course . I know cpuburn is old but it can excersize the comms between l1 & cpu & l1 & l2 -> cpu if done right . (*) CPU 5: Machine Check Exception: 0000000000000004 CPU 4: Machine Check Exception: 0000000000000004 Kernel panic - not syncing: Unable to continue root@(none):~ # uname -a Linux (none) 2.6.21.5 #1 SMP Fri Jun 15 04:37:23 UTC 2007 i686 pentium4 i386 GNU/Linux Complete serial console log of a boot to single user mode is here . http://www.baby-dragons.com/test-2.6.21.5-mptscsi-4.00.10.00-2007006161326.log Tia , JimL -- +-----------------------------------------------------------------+ | James W. Laferriere | System Techniques | Give me VMS | | Network Engineer | 663 Beaumont Blvd | Give me Linux | | babydr@baby-dragons.com | Pacifica, CA. 94044 | only on AXP | +-----------------------------------------------------------------+ - 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/