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Re: [Xen-devel] ACPI-Tables corrupted?

To: Juergen Gross <juergen.gross@xxxxxxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Subject: Re: [Xen-devel] ACPI-Tables corrupted?
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Thu, 29 Jul 2010 07:39:29 +0100
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On 29/07/2010 07:19, "Juergen Gross" <juergen.gross@xxxxxxxxxxxxxx> wrote:

>> What is the crash? And do you see any indiciation that x2APIC is turned
>> on? Do provide a serial log please.
> Log is attached.
> I did some more testing. The problem occurred on a Nehalem-EX system. I tried
> the same on a Nehalem-EP system and all was okay. I suspect some further
> problems in the ACPI tables of the EX system now. I'm not too familiar with
> ACPI tables. Anything I can do for further analysis?

Okay I think now that the crash is legitimate. The easy fix is that we
should reinstate the DMAR before kexec'ing the crash kernel. I'll look into
doing a patch to the hypervisor later today.


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