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

Udo van den Heuvel
2013-01-20T11:53:13Z

On 2013-01-20 12:48, Borislav Petkov wrote:
> On Sun, Jan 20, 2013 at 12:40:11PM +0100, Jörg Rödel wrote:
>> Yes, the BIOS vendor can fix this issue. They need to disable NB clock
>> gating for the IOMMU.
>
> Right, Udo, you can try Gigabyte first.

I just did so and referred to the kernel.org bugzilla.

> Btw, can't we add a quirk to disable NB clock gating? Maybe Boris and
> Jacob could help. CCed.

That would be most helpful!
Of course I can help testing but the issue happened only 1 time so far.

The person from
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1073384 had more
bad luck in experiencing the issue.

Thanks,
Udo