Re: 3.6.11 AMD-Vi: Completion-Wait loop timed out

Jörg Rödel
2013-01-20T11:19:25Z

On Sun, Jan 20, 2013 at 11:40:20AM +0100, Udo van den Heuvel wrote:
> Hello,
>
> On 2013-01-20 11:36, Borislav Petkov wrote:
> > I know just the guy, CCed. :-)
>
> Thanks for the quick response!
> I found this similar case:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1073384

Yes, this is a Hardware issue for which the BIOS does not apply the
workaround. The only solution for now is to disable the IOMMU on the
Trinity based chips. Unfortunatly I don't have access to the hardware
any longer to write a workaround in the AMD IOMMU driver.

The question is what to do now, I tend to disable the IOMMU if a
Trinity chip is detected. This is not the first report of this problem
I encountered.

Regards,

Joerg