amd-iommu: can't boot with amdgpu, AMD-Vi: Completion-Wait loop timed out

[Tom St Denis]

On 22/03/17 01:18 PM, Tom St Denis wrote:

> I tried this out but still got a lockup during init.  I tried getting a
> dmesg log but it locked up before it outputted anything more (after the
> init).

nvm.  Even with iommu disabled it fails to boot.  Stoney support dies 
occasionally on staging-4.9 so I'll have to bisect this first and then 
circle back to this iommu patch.

Tom