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

[Juergen Gross <juergen.gross@xxxxxxxxxxxxxx>]

On 07/29/2010 08:39 AM, Keir Fraser wrote:
> 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.
Thanks!
BTW: Do you understand why the EP system has no problems with the patched DMAR
entry?

Juergen

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Juergen Gross                 Principal Developer Operating Systems
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