Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263948AbUD0KRa (ORCPT ); Tue, 27 Apr 2004 06:17:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263969AbUD0KRa (ORCPT ); Tue, 27 Apr 2004 06:17:30 -0400 Received: from nobody.lpr.e-technik.tu-muenchen.de ([129.187.151.1]:8636 "EHLO nobody.lpr.e-technik.tu-muenchen.de") by vger.kernel.org with ESMTP id S263948AbUD0KRY (ORCPT ); Tue, 27 Apr 2004 06:17:24 -0400 Date: Tue, 27 Apr 2004 12:17:20 +0200 From: Juergen Stohr To: linux-kernel@vger.kernel.org Subject: [BUG]linux-2.4.26 Quad-Opteron: panic when init scsi Message-ID: <20040427101720.GA27663@rcs.ei.tum.de> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="h31gzZEtNLTqOjlF" Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 9610 Lines: 165 --h31gzZEtNLTqOjlF Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit Hi, I have got a problem similar to the one discussed in the thread "[BUG]linux-2.4.24 with k8 numa support panic when init scsi": When booting the 2.4.26 on a quad Opteron box, in most of the cases the kernel crashes when initializing SCSI. It seems to me that this bug is caused by a race, as in a few cases the machine is able to boot. The machine always boots if I set maxcpus=1. If I append numa=off to the command line the kernel crashes with a "Machine Check Exception" (but is able to initialize SCSI; perhaps this is another bug?) Does anybody know how to solve this problem or is anybody working on it? Can someone give me a hint where to start when debugging this race? I will attach the config of my kernel, the syslogs and the output of ksymoops. 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