I was finally able to spend a bit of time on this. Unfortunately, there’s 
not much to report back.

Em terça-feira, 8 de junho de 2021, às 15:13:36 -03, Thiago Jung Bauermann 
escreveu:
> Em terça-feira, 8 de junho de 2021, às 10:30:24 -03, Alex Deucher 
escreveu:
> > Can you narrow down which specific firmware file causes the problem?
> 
> Ok, I will try.

I don’t think I can narrow down which firmware file causes the problem, 
because I don’t have a last known good version. All firmware files that I 
tested (Ubuntu versions 1.190.5, 1.197 and latest linux-firmware.git) 
immediately trigger the bug when I try the only reliable reproducer I know 
(i.e., running flatpak’s com.github.quaternion package).

Since it can take several days for the bug to happen if I just use the 
machine normally, it would take weeks to narrow down which of the picasso_* 
files is more stable relative to the others. And even then, I wouldn’t be 
sure about it.

> > I think it may be related to a change in mesa.  Specifically mesa
> > commit
> > 820dec3f7c7.  For more info see
> > https://gitlab.freedesktop.org/mesa/mesa/-/issues/4866
> 
> I’ll run with Mario’s build of Mesa with that patch backported.
> Thanks, Mario!

I’m running with the Mesa build from Mario’s PPA now. If I don’t see any 
issue within two weeks, I think it will be possible to say that the bug is 
gone, or at least much harder to hit.

I can’t use my reproducer in this case, because I can’t change the Mesa 
version inside the flatpak image.

-- 
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to mesa in Ubuntu.
https://bugs.launchpad.net/bugs/1928393

Title:
  linux-firmware 1.197 causes kernel to report error "amdgpu: [gfxhub0]
  retry page fault"

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