From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265868AbTLIOWW (ORCPT ); Tue, 9 Dec 2003 09:22:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265869AbTLIOWU (ORCPT ); Tue, 9 Dec 2003 09:22:20 -0500 Received: from jurand.ds.pg.gda.pl ([153.19.208.2]:9358 "EHLO jurand.ds.pg.gda.pl") by vger.kernel.org with ESMTP id S265868AbTLIOVe (ORCPT ); Tue, 9 Dec 2003 09:21:34 -0500 Date: Tue, 9 Dec 2003 15:21:30 +0100 (CET) From: "Maciej W. Rozycki" To: Bob Cc: linux-kernel Subject: Re: Catching NForce2 lockup with NMI watchdog In-Reply-To: <3FD3DFEB.1010902@nishanet.com> Message-ID: References: <20031205045404.GA307@tesore.local> <16336.13962.285442.228795@alkaid.it.uu.se> <20031205085829.GL29119@mis-mike-wstn.matchmail.com> <3FD3DFEB.1010902@nishanet.com> Organization: Technical University of Gdansk MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 7 Dec 2003, Bob wrote: > I have append="nmi_watchdog=1" ? Nothing "nmi" or "NMI" is logged. > > cat /proc/interrupts > CPU0 > 0: 241105839 XT-PIC timer > 1: 27337 IO-APIC-edge i8042 > 2: 0 XT-PIC cascade > 8: 1 IO-APIC-edge rtc > 9: 0 IO-APIC-level acpi > 12: 217952 IO-APIC-edge i8042 > 14: 22 IO-APIC-edge ide0 > 15: 24 IO-APIC-edge ide1 > 16: 4245875 IO-APIC-level 3ware Storage Controller, yenta, yenta > 17: 5428737 IO-APIC-level eth0 > 21: 0 IO-APIC-level NVidia nForce2 > NMI: 0 > LOC: 241091187 > ERR: 0 > MIS: 6 You don't have the NMI watchdog working, because the timer interrupt is configured as an 8259A interrupt ("XT-PIC" for IRQ 0 in the output above). This usually means the wiring of a particular system doesn't provide any other alternative or configuration data provided by the BIOS is broken. The timer interrupt has to be configured as an I/O APIC interrupt for the watchdog to work, or you can select "nmi_watchdog=2" for an alternative watchdog internal to processors if they support it. -- + Maciej W. Rozycki, Technical University of Gdansk, Poland + +--------------------------------------------------------------+ + e-mail: macro@ds2.pg.gda.pl, PGP key available +