From: Jamie Lokier <jamie@shareable.org>
To: "Richard B. Johnson" <root@chaos.analogic.com>
Cc: Hans-Peter Jansen <hpj@urpla.net>,
Robert_Hentosh@Dell.com,
Linux kernel <linux-kernel@vger.kernel.org>
Subject: Re: spurious 8259A interrupt
Date: Wed, 24 Mar 2004 15:28:00 +0000 [thread overview]
Message-ID: <20040324152800.GA5758@mail.shareable.org> (raw)
In-Reply-To: <Pine.LNX.4.53.0403220713160.13879@chaos>
Richard B. Johnson wrote:
> It isn't CPU-specific. It's motherboard glitch specific. If there
> is ground-bounce on the motherboard or excessive induced
> coupling, the CPU may occasionally get hit with a logic-level
> that it "thinks" is an interrupt, even though no controller
> actually generated it.
That doesn't seem plausible on an otherwise reliable computer.
Why would interrupt lines suffer ground-bounce logic glitches yet all
the data, address and control lines be fine?
-- Jamie
next prev parent reply other threads:[~2004-03-24 15:28 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
2004-03-22 9:12 ` Maciej W. Rozycki
2004-03-22 12:29 ` Richard B. Johnson
2004-03-24 15:28 ` Jamie Lokier [this message]
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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