[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] iommu=0 leading to panic when system defaults to using x2apic
>>> On 14.12.10 at 17:53, "Kay, Allen M" <allen.m.kay@xxxxxxxxx> wrote: >> And why is it that Xen panics when the BIOS pre-enabled x2apic >> mode without also enabling interrupt re-mapping, while Linux >> (afaict from looking at 2.6.32 code and output from an affected >> machine) simply enables interrupt re-mapping in this case? > > AFAIK, Linux also requires interrupt remapping for x2apic. I believe > Weidong has fixed the panic issue in Xen when x2apic is enabled without > enabling interrupt remapping. It should now behave the same way as Linux. Oh, and I should have added that I'm currently polishing up patches from Yinghai Lu to address this as well as other problems preventing (certain?) large boxes from booting or functioning correctly. Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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