RE: spurious 8259A interrupt

From: Maciej W. Rozycki
Date: Mon Mar 22 2004 - 04:04:42 EST


On Fri, 19 Mar 2004, Guennadi Liakhovetski wrote:

> > The best way to deal with spurious interrupts is to ack the interrupt at
> > the device ASAP in the handler, especially if you know that the response
> > is slow.
>
> I am getting those from the lAPIC timer interrupt (on a VIA KM133 Duron
> system). And the APIC timer interrupt IS acked (almost) immediately. So, I
> have a choice: no NMI watchdog or that uncomfortably increasing ERR:
> counter. Kernel 2.6.3.

Do you really get "spurious 8259A interrupt" messages for the local APIC
timer??? They don't ever leave the unit bound to the processor -- it has
to be something else. What is your contents of /proc/interrupts?

--
+ Maciej W. Rozycki, Technical University of Gdansk, Poland +
+--------------------------------------------------------------+
+ e-mail: macro@xxxxxxxxxxxxx, PGP key available +
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