Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261854AbUCLAXz (ORCPT ); Thu, 11 Mar 2004 19:23:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261857AbUCLAXz (ORCPT ); Thu, 11 Mar 2004 19:23:55 -0500 Received: from mta07-svc.ntlworld.com ([62.253.162.47]:5111 "EHLO mta07-svc.ntlworld.com") by vger.kernel.org with ESMTP id S261854AbUCLAXy (ORCPT ); Thu, 11 Mar 2004 19:23:54 -0500 From: Richard Browning Organization: Redline Software Engineering To: Zwane Mwaikambo Subject: Re: SMP + Hyperthreading / Asus PCDL Deluxe / Kernel 2.4.x 2.6.x / Crash/Freeze Date: Fri, 12 Mar 2004 00:22:13 +0000 User-Agent: KMail/1.6 Cc: Len Brown , linux-kernel@vger.kernel.org References: <200403111819.25819.richard@redline.org.uk> In-Reply-To: MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200403120022.13534.richard@redline.org.uk> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1256 Lines: 33 On Thursday 11 March 2004 22:17, Zwane Mwaikambo wrote: > On Thu, 11 Mar 2004, Richard Browning wrote: > > I've now updated the BIOS to the latest version available on Asus' site. > > The crash occurs even earlier - during bootup this time. Exactly: > > > > CPU2: Machine Check Exception: 000.0004 > > CPU3: Machine Check Exception: 000.0004 > > Bank 0: a20000008c010400Bank0: a20000008c010400 > > Kernel Panic: CPU context corrupt > > In idle task - not syncing > > > > Again, disabling hyperthreading allows the system to operate normally. > > For my own curiosity, does switching the processors around do anything? > Those MCEs look confined to the non bootstrap processor package. Switched CPUs. This time I get the following: CPU3: Machine Check Exception: 000.0004 CPU2: Machine Check Exception: 000.0004 Bank 0: a20000008c010400 Kernel Panic: CPU context corrupt In idle task - not syncing Note that the CPU# designations are swapped and that there's only one Bank 0: message. Is this significant? R - 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/