Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264028AbUDNKOm (ORCPT ); Wed, 14 Apr 2004 06:14:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264027AbUDNKOm (ORCPT ); Wed, 14 Apr 2004 06:14:42 -0400 Received: from jurand.ds.pg.gda.pl ([153.19.208.2]:30639 "EHLO jurand.ds.pg.gda.pl") by vger.kernel.org with ESMTP id S264028AbUDNKOl (ORCPT ); Wed, 14 Apr 2004 06:14:41 -0400 Date: Wed, 14 Apr 2004 12:14:39 +0200 (CEST) From: "Maciej W. Rozycki" To: Jon Grimm Cc: Ross Dickson , linux-kernel@vger.kernel.org, phil.el@wanadoo.fr Subject: Re: io_apic & timer_ack fix In-Reply-To: <407CC3DB.3070300@us.ibm.com> Message-ID: References: <200404100337.21730.ross@datscreative.com.au> <407CC3DB.3070300@us.ibm.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 Content-Length: 982 Lines: 20 On Tue, 13 Apr 2004, Jon Grimm wrote: > I 've been running the patch on a 2.4.21 code base. I note that > /proc/interrupts shows NMI interrupts coming in fast and furious, where > without it there were none. I'm not sure what to think of this. This is the NMI watchdog -- an aid to debug lock-ups. You can control it with the "nmi_watchdog=" kernel option -- see documentation. I suppose without the timer_ack change the watchdog wouldn't work for some reason -- perhaps due to problems with your 8259A core or with the SMM. -- + Maciej W. Rozycki, Technical University of Gdansk, Poland + +--------------------------------------------------------------+ + e-mail: macro@ds2.pg.gda.pl, PGP key available + - 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/