Re: AMD IOMMU causing filesystem corruption

[Samuel Sieb]

On 04/03/2017 08:37 PM, Samuel Sieb wrote:
> On 04/03/2017 02:39 PM, Joerg Roedel wrote:
> > You have a system based on the AMD Stoney platform, on which the PCI-ATS
> > feature of the GPU is broken, as we recently found out.
> >
> > Can you please test whether the attached patch fixes the issue on your
> > machine?
> Yes, that works, thank you!
Unfortunately, that turned out to be a bit premature.  After compiling a 
kernel on it remotely over ssh (not interacting with the logged in 
desktop), a reboot failed with endless completion-wait loop timeout 
messages and after a force poweroff and restart it won't boot.  The EFI 
filesystem was even destroyed, probably because the kernel installation 
modified a file on there.