From: Mike Fedyk <mfedyk@matchmail.com>
To: Allan Sandfeld <linux@sneulv.dk>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Idiot-proof APIC?
Date: Wed, 20 Feb 2002 14:49:52 -0800 [thread overview]
Message-ID: <20020220224952.GB20060@matchmail.com> (raw)
In-Reply-To: <E16dc5j-0000CB-00@Princess>
In-Reply-To: <E16dc5j-0000CB-00@Princess>
On Wed, Feb 20, 2002 at 08:07:47PM +0100, Allan Sandfeld wrote:
> Hi, I just want to share some of my stupidity and my experience with it with
> you.
> I recently had the misfortune to try to put two celerons on an SMP-board. The
> bios correctly ignored the second cpu, but the linux-kernel(2.4.17). Would
> boot almost normally then emit two APIC-errors to the console(error 2 and
> 6?), and shortly after freeze completely. After one of the celerons was
> removed linux was completely stable. Something inside makes me question
> whether or not the APIC people have taken idiots into consideration. The
> kernel should detect two cpu, detect they are not SMP and then operate using
> just one. Not very importent, but correct behavior.
> Anyway for specs the board it was an Acorp 6A815EPD. Proberbly the one of the
> only SMP i815 mortherboards in the world.
>
Actually, with the correct adapters, celerons can be made SMP safe.
I would immagine that it is hard to detect if there is a adapter operating
correctly from the APIC code...
Mike
next prev parent reply other threads:[~2002-02-20 22:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-20 19:07 Idiot-proof APIC? Allan Sandfeld
2002-02-20 22:49 ` Mike Fedyk [this message]
2002-02-21 0:19 ` Mark Cooke
2002-02-21 9:48 ` Andrey Panin
2002-02-21 10:05 ` Maciej W. Rozycki
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