[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Re: machine check report on HVM startup
On Wednesday 13 August 2008 14:48:04 Keir Fraser wrote: > On 13/8/08 13:40, "Christoph Egger" <Christoph.Egger@xxxxxxx> wrote: > >>>> This looks to me, there's a non-public event channel using the same > >>>> number as VIRQ_MCA which fires when launching memtest as HVM guest. > >>> > >>> I don't think this is the case. Sounds easy to repro this issue though. > >>> I'll give it a go. > >> > >> I can boot a memtest-3.4 ISO in an HVM guest on PAE hypervisor just > >> fine. > > > > Does your Dom0 kernel registrate the machine check event handler ? > > If not, then it things go fine. If yes, then you should see the flood of > > VIRQ_MCA events in the Dom0. > > How do I make it do that? Assuming you use Linux as Dom0, apply the attached patch to your local tree. With it, you should see a flood of "xen_mca: HW reported correctable error(s)" Dom0 kernel messages. Note, the patch is not intended to go upstream. There will be something better in the future. Christoph -- AMD Saxony, Dresden, Germany Operating System Research Center Legal Information: AMD Saxony Limited Liability Company & Co. KG Sitz (Geschäftsanschrift): Wilschdorfer Landstr. 101, 01109 Dresden, Deutschland Registergericht Dresden: HRA 4896 vertretungsberechtigter Komplementär: AMD Saxony LLC (Sitz Wilmington, Delaware, USA) Geschäftsführer der AMD Saxony LLC: Dr. Hans-R. Deppe, Thomas McCoy Attachment:
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