All of lore.kernel.org
 help / color / mirror / Atom feed
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

  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20020220224952.GB20060@matchmail.com \
    --to=mfedyk@matchmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux@sneulv.dk \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.