Hello Seth,

Thank you for the quick and detailed response.

Em sexta-feira, 14 de maio de 2021, às 13:14:22 -03, Seth Forshee escreveu:
> Before we revert we should see if newer firmware fixes the issue, and
> make sure we are only changing the specific firmware files for your
> hardware.

Ok, sounds good.

> I think your hardware is the "Picasso" series. Can you try the
> following? If you are unsure about any of the following steps, let me
> know and I can provide you with test packages to install instead.

Thanks for the offer. It's not a problem getting the files from git and 
overwrite them manually.

> Save all files matching /lib/firmware/amdgpu/picasso* from linux-
> firmware 1.190.5. Reinstall 1.197, then overwrite the picasso firmware
> files with the ones you saved. Reboot, and confirm that the issues you
> see with 1.197 are fixed. If they are not fixed, then there's no need to
> proceed as we haven't found the correct firmware files which are causing
> your issues.

Ah, ok. This morning I went ahead and overwrote the whole of /lib/firmware/
amdgpu/ with the files from the latest commit of the upstream linux-
firmware git repo you mention below. It's been only a little over 2 hours, 
but my impression is that the latest firmware does solve the problem. If no 
retry page fault happens by the end of the day, then I think it's safe to 
say that it fixes the issue.

So at the end of the day (or earlier if I get a retry page fault) I'll do 
the procedure you mention to use firmware 1.197 and only overwrite the 
picasso* files to confirm if those are the ones that need to be changed.

I don't know much about GPUs, but from looking at Wikipedia¹ I think my 
model is a "Vega 10". Should I overwrite the vega10* files as well?

¹ https://en.wikipedia.org/wiki/Radeon_RX_Vega_series#Picasso_(2019)_2

> Then please download the picasso firmware files from here:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-> 
firmware.git/tree/amdgpu
> 
> Use the "plain" link next to each file to download the file. Overwrite
> the files in /lib/firmware/admgpu with these files, reboot, and see if
> you continue to have problems.
> 
> ** Changed in: linux-firmware (Ubuntu)
>    Importance: Undecided => High

Thanks!

> 
> ** Changed in: linux-firmware (Ubuntu)
>        Status: New => Incomplete
> 
> ** Changed in: linux-firmware (Ubuntu)
>      Assignee: (unassigned) => Seth Forshee (sforshee)

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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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