Re: IO-APIC on nforce2 [PATCH] + [PATCH] for nmi_debug=1 + [PATCH] for idle=C1halt, 2.6.5

From: Jamie Lokier
Date: Thu Apr 29 2004 - 07:01:56 EST


Maciej W. Rozycki wrote:
> Not necessarily related to the PSU, but the noise may actually be the
> reason of spurious timer interrupts.

With most device interrupts, additional spurious ones don't cause any
malfunction because the driver's handler checks whether the device
actually has a condition pending.

This is the basis of shared interrupts, of course.

Is there any way we can check the timer itself to see whether an
interrupt was caused by it, so that spurious timer interrupts are ignored?

-- Jamie
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