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From: Hans-Peter Jansen <hpj@urpla.net>
To: root@chaos.analogic.com, Jamie Lokier <jamie@shareable.org>
Cc: Robert_Hentosh@Dell.com, Linux kernel <linux-kernel@vger.kernel.org>
Subject: Re: spurious 8259A interrupt
Date: Sun, 21 Mar 2004 18:58:07 +0100	[thread overview]
Message-ID: <200403211858.07445.hpj@urpla.net> (raw)
In-Reply-To: <Pine.LNX.4.53.0403190825070.929@chaos>

On Friday 19 March 2004 14:48, Richard B. Johnson wrote:
>
> The IRQ7 spurious is usually an artifact of a crappy motherboard
> design where the CPU "thinks" it was interrupted, but the
> controller didn't wiggle the CPUs INT line.

Thanks for the nice explanation, Richard. 

I even see them on my x86_64 box in 64 bit mode. (K8VT800 based)
Furtunately only occasionally.

I thought, AMD took the chance to fix that kind of crap in the new 
architecture, but obviously they failed in this respect :-(

Pete


  parent reply	other threads:[~2004-03-21 17:58 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-03-16 20:32 spurious 8259A interrupt Robert_Hentosh
2004-03-19 13:06 ` Jamie Lokier
2004-03-19 13:16   ` Russell King
2004-03-19 13:39     ` Jamie Lokier
2004-03-19 14:04       ` Anton Blanchard
2004-03-19 14:56         ` Jamie Lokier
2004-03-19 13:48   ` Richard B. Johnson
2004-03-19 14:39     ` Jamie Lokier
2004-03-21 17:58     ` Hans-Peter Jansen [this message]
2004-03-22  9:12       ` Maciej W. Rozycki
2004-03-22 12:29       ` Richard B. Johnson
2004-03-24 15:28         ` Jamie Lokier
2004-03-24 15:50           ` Gabriel Paubert
2004-03-24 15:57           ` Richard B. Johnson
2004-03-19 13:28 ` Maciej W. Rozycki
2004-03-19 22:01   ` Guennadi Liakhovetski
2004-03-22  9:02     ` Maciej W. Rozycki
2004-03-22 21:16       ` Guennadi Liakhovetski
2004-03-22 22:13         ` Richard B. Johnson
2004-03-22 23:09           ` Guennadi Liakhovetski
2004-03-22 23:38             ` Richard B. Johnson
2004-03-23 10:32               ` Maciej W. Rozycki
2004-03-23 10:42             ` Maciej W. Rozycki
2004-03-23 21:10               ` Guennadi Liakhovetski
2004-03-23 10:29           ` Maciej W. Rozycki
2004-03-23 10:26         ` Maciej W. Rozycki
  -- strict thread matches above, loose matches on Subject: below --
2004-03-16 18:35 Emmanuel Fleury

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