linux-kernel - Re: 2.6.27-rc3: 'APIC error on CPU1: 00(40)', but only on resume!

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Date:	Thu, 21 Aug 2008 15:15:36 +0200
From:	Mikael Pettersson <mikpe@...uu.se>
To:	"Maciej W. Rozycki" <macro@...ux-mips.org>
Cc:	Vegard Nossum <vegard.nossum@...il.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Frans Pop <elendil@...net.nl>,
	linux-kernel@...r.kernel.org, Andi Kleen <andi@...stfloor.org>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: 2.6.27-rc3: 'APIC error on CPU1: 00(40)', but only on resume!

Maciej W. Rozycki writes:
 > On Thu, 21 Aug 2008, Vegard Nossum wrote:
 > 
 > > Ah, right. Here is a dump of the LVT registers:
 > > 
 > > [00000320] = 000100ef
 > > [00000330] = 00000200
 > > [00000340] = 00010000
 > > [00000350] = 00010700
 > > [00000360] = 00000400
 > > [00000370] = 000000fe
 > > 
 > > Maybe I've misunderstood something (again), but should those vectors
 > > really be 0 for 330-360? (At least 330 + 360, which are not masked.)
 > 
 >  Masked entries should be fine long-term, although I have a vague
 > recollection at least some implementations do send a vector error when an
 > LVT register is written with a masked entry implying an invalid vector,
 > e.g. a value like 0x00010000.

The original Intel P6s do that. Dunno about the post-P4 ones.
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