From: joe briggs <jbriggs@briggsmedia.com>
To: Mikael Pettersson <mikpe@csd.uu.se>,
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 [thread overview]
Message-ID: <200309080640.10149.jbriggs@briggsmedia.com> (raw)
In-Reply-To: <200309080933.h889X06U011447@harpo.it.uu.se>
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?
> -
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--
Joe Briggs
Briggs Media Systems
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Manchester NH 01304 USA
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next prev parent reply other threads:[~2003-09-08 9:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-08 9:33 Mikael Pettersson
2003-09-08 10:40 ` joe briggs [this message]
2003-09-08 15:06 ` Maciej W. Rozycki
2003-09-08 23:22 ` PROBLEM: APIC on a Pentium Classic SMP, 2.4.21-pre2 and 2.4.21-pre3 ksymoops Mathieu Desnoyers
-- strict thread matches above, loose matches on Subject: below --
2003-09-07 22:37 PROBLEM: APIC on a Pentium Classic SMP, kernel 2.4.21-pre5 to 2.4.23-pre3 Mathieu Desnoyers
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