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[Xen-devel] Re: AMD IOMMU related boot failure due to page coalescing c/s 23767



On 19/08/2011 17:16, "Ian Jackson" <Ian.Jackson@xxxxxxxxxxxxx> wrote:

> Wei Wang2 writes ("Re: AMD IOMMU related boot failure due to page coalescing
> c/s 23767"):
>> Oh, that is another issue that I haven't got time to look at...
>> you could use iommu=no-perdev-vector-map to workaround this.
> 
> Err.  Right.  Is there perhaps some other recent changeset that needs
> fixing or reverting ?  That would make five ...

You could try nobbling c/s 23754. E.g., change the static initialiser for
iommu_amd_perdev_vector_map (defined in drivers/passthrough/iommu.c,
somewhat oddly) to 0.

 -- Keir

> Ian.



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