From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 24 Sep 2001 14:12:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 24 Sep 2001 14:12:36 -0400 Received: from cx97923-a.phnx3.az.home.com ([24.9.112.194]:60123 "EHLO grok.yi.org") by vger.kernel.org with ESMTP id ; Mon, 24 Sep 2001 14:12:29 -0400 Message-ID: <3BAF78F9.EC0F67C1@candelatech.com> Date: Mon, 24 Sep 2001 11:18:33 -0700 From: Ben Greear Organization: Candela Technologies Inc X-Mailer: Mozilla 4.77 [en] (X11; U; Linux 2.4.7 i586) X-Accept-Language: en MIME-Version: 1.0 To: bill davidsen CC: linux-kernel@vger.kernel.org Subject: Re: Locked up 2.4.10-pre11 on Tyan 815t motherboard. In-Reply-To: <200109241514.f8OFEL005589@deathstar.prodigy.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org bill davidsen wrote: > > In article <3BA8DF59.B9F536B4@candelatech.com> greearb@candelatech.com wrote: > | Andrew Morton wrote: > | > | > nmi_watchdog will force an oops if the machine locks up > | > with interrupts disabled (as I suspect mine did). But > | > it requires an SMP kernel or IO-APIC-on-UP. > | > | I just built a 2.4.8 kernel with the APIC enabled. It locked > | hard and printed no OOPS. I had set the boot cmd line as: > | nmi_watchdog=1 > > This only works if you have a lock with no response. If keyboard input > is echoed or ping still works, that's not the tight lockup. May I > suggest the software watchdog feature as an alternative. It's much > better at finding cases where the system is only braindead rather than > locked up. The keyboard did not work and ping did not work... alt-sysreq did not work either. Ben -- Ben Greear President of Candela Technologies Inc http://www.candelatech.com ScryMUD: http://scry.wanfear.com http://scry.wanfear.com/~greear