Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262290AbTIHJkx (ORCPT ); Mon, 8 Sep 2003 05:40:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262301AbTIHJkx (ORCPT ); Mon, 8 Sep 2003 05:40:53 -0400 Received: from [66.155.158.133] ([66.155.158.133]:7296 "EHLO ns.waumbecmill.com") by vger.kernel.org with ESMTP id S262290AbTIHJks convert rfc822-to-8bit (ORCPT ); Mon, 8 Sep 2003 05:40:48 -0400 Content-Type: text/plain; charset=US-ASCII From: joe briggs Organization: BMS To: Mikael Pettersson , linux-kernel@vger.kernel.org, mathieu.desnoyers@polymtl.ca, mingo@redhat.com Subject: Re: PROBLEM: APIC on a Pentium Classic SMP, kernel 2.4.21-pre5 to 2.4.23-pre3 Date: Mon, 8 Sep 2003 06:40:10 -0400 User-Agent: KMail/1.4.3 References: <200309080933.h889X06U011447@harpo.it.uu.se> In-Reply-To: <200309080933.h889X06U011447@harpo.it.uu.se> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Message-Id: <200309080640.10149.jbriggs@briggsmedia.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1901 Lines: 45 I have a Tyan 2460 Dual Athlon mobo running 2.4.21-ac, and it would reliably freeze (i.e., completely lock up with no error messages) under moderate PCI load (NFS, SMB, or disk-to-disk transfer). I tried "noapic" with no improvement. I shifted to 2.4.22-ac and the problem went away. On Monday 08 September 2003 05:33 am, Mikael Pettersson wrote: > On Sun, 07 Sep 2003 18:37:48 -0400, Mathieu Desnoyers wrote: > >IRQ problems with APIC enabled on a Neptune chipset, Pentium 90 SMP. > > > >Description > > > >Since kernel 2.4.21-pre2, IRQ problems are present on my Pentium 90 SMP, > > wi= th > >APIC enabled. It works well with 2.4.20 with APIC enabled, or with newer > >kernels with "noapic" kernel option. > > There were a lot of I/O-APIC & MP table parsing changes in 2.4.21 > for clustered apic. Chances are something there broke on your > ancient BIOS & mobo. I can't immediately see anything obviously > broken in 2.4.21: you'll have to identify the first pre-patch where > things broke and then test or revert it piece by piece. > > >On kernel 2.4.21-pre2, there is a kernel oops before this, with a > >"Dereferencing NULL pointer". > > You didn't run that through ksymoops and post it, so how is anyone > supposed to be able to debug it? > - > 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/ -- Joe Briggs Briggs Media Systems 105 Burnsen Ave. Manchester NH 01304 USA TEL 603-232-3115 FAX 603-625-5809 MOBILE 603-493-2386 www.briggsmedia.com - 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/