Re: regression/bisected/6.8 commit f7fe64ad0f22ff034f8ebcfbd7299ee9cc9b57d7 leads to GPU hang when I open GNOME activities

From: Mario Limonciello
Date: Wed Jan 24 2024 - 10:43:26 EST


On 1/24/2024 08:37, Mikhail Gavrilov wrote:
On Wed, Jan 24, 2024 at 7:19 AM Mikhail Gavrilov
<mikhail.v.gavrilov@xxxxxxxxx> wrote:

Who could dig into it, please?

You decided to revert it?
https://lkml.org/lkml/2024/1/22/1866

It's not a straight "git revert" on 6.8-rc1 because of some other contextual changes.

I posted that as an RFC specifically "in case" that's the direction we go and don't get a proper solution together.

Matthew also posted a debugging patch here for use with ftrace and the GPU scheduler events: https://gitlab.freedesktop.org/drm/amd/-/issues/3124

I reproduced it with that as well and posted my ftrace results.


Also I forgot to attach the kernel build .config in the previous
message. I'm going to fix it here.
It may be useful for reproducing my bug script.