Re: APIC problems

From: Maciej W. Rozycki (
Date: Tue Feb 13 2001 - 12:43:02 EST

On Mon, 12 Feb 2001, David D.W. Downey wrote:

> I can see that the error codes are actually the values of ESR both before
> and after the apic_write() call. I see that the codes are the modulus'd
> value before and after the apic_write call. What I'm not understanding is
> how to translate that into a valid ID for determining what the exact error
> is. In this instance 08 doesn't appear to be a valid return. Or am I
> missing something here??

 "08" is "3: Receive accept error" -- all codes are explained in
smp_error_interrupt(). And yes, bits 0 - 3 indicate hardware problems
(due to marginal design, overheating, etc.), especially if seen in volume.

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

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