From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264962AbTLFISy (ORCPT ); Sat, 6 Dec 2003 03:18:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264963AbTLFISy (ORCPT ); Sat, 6 Dec 2003 03:18:54 -0500 Received: from postfix4-2.free.fr ([213.228.0.176]:45966 "EHLO postfix4-2.free.fr") by vger.kernel.org with ESMTP id S264962AbTLFISx (ORCPT ); Sat, 6 Dec 2003 03:18:53 -0500 Date: Sat, 6 Dec 2003 09:18:49 +0100 From: cheuche+lkml@free.fr To: linux-kernel@vger.kernel.org Subject: Re: Catching NForce2 lockup with NMI watchdog - found Message-ID: <20031206081848.GA4023@localnet> Mail-Followup-To: linux-kernel@vger.kernel.org References: <3FD1199E.2030402@gmx.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3FD1199E.2030402@gmx.de> User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Dec 06, 2003 at 12:49:50AM +0100, Prakash K. Cheemplavam wrote: > > So gals and guys, try disabling cpu disconnect in bios and see whether > aopic now runs stable. > Yes that fix it. Well time will tell but I cannot make it crash with hdparm -tT or cat /dev/hda so far. I'm dumping hda to /dev/null right now. After testing to make it crash, I used athcool to reenable CPU disconnect, and guess what, test after that just crashed the box. You found the problem, congratulations. If you experience crashes with apic and your bios does not have such option, try athcool at http://members.jcom.home.ne.jp/jacobi/linux/softwares.html Its purpose is to *enable* cpu disconnect but can also disable it. Your best bet is to run it to disable cpu disconnect the soonest possible at boot. On the other hand, it isn't the cause of IRQ7 rogue interrupts. As I initially suspected, it seems now totally unrelated. The ACPI override handling may be buggy ? Since putting back the timer on IO-APIC-edge solves it. Nevertheless this is still a problem, other chipsets for Athlon processors seems to be able to have cpu disconnect and ioapic enabled without any crashes. But so far I don't see any thermal differences, I'm happy with that. Mathieu