Re: Radeon regression in 6.6 kernel

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On Mon, Nov 20, 2023 at 10:57 AM Christian König
<ckoenig.leichtzumerken@xxxxxxxxx> wrote:
>
> Am 19.11.23 um 07:47 schrieb Dave Airlie:
> >> On 12.11.23 01:46, Phillip Susi wrote:
> >>> I had been testing some things on a post 6.6-rc5 kernel for a week or
> >>> two and then when I pulled to a post 6.6 release kernel, I found that
> >>> system suspend was broken.  It seems that the radeon driver failed to
> >>> suspend, leaving the display dead, the wayland display server hung, and
> >>> the system still running.  I have been trying to bisect it for the last
> >>> few days and have only been able to narrow it down to the following 3
> >>> commits:
> >>>
> >>> There are only 'skip'ped commits left to test.
> >>> The first bad commit could be any of:
> >>> 56e449603f0ac580700621a356d35d5716a62ce5
> >>> c07bf1636f0005f9eb7956404490672286ea59d3
> >>> b70438004a14f4d0f9890b3297cd66248728546c
> >>> We cannot bisect more!
> >> Hmm, not a single reply from the amdgpu folks. Wondering how we can
> >> encourage them to look into this.
> >>
> >> Phillip, reporting issues by mail should still work, but you might have
> >> more luck here, as that's where the amdgpu afaics prefer to track bugs:
> >> https://gitlab.freedesktop.org/drm/amd/-/issues
> >>
> >> When you file an issue there, please mention it here.
> >>
> >> Furthermore it might help if you could verify if 6.7-rc1 (or rc2, which
> >> comes out later today) or 6.6.2-rc1 improve things.
> > It would also be good to test if reverting any of these is possible or not.
>
> Well none of the commits mentioned can affect radeon in any way. Radeon
> simply doesn't use the scheduler.
>
> My suspicion is that the user is actually using amdgpu instead of
> radeon. The switch potentially occurred accidentally, for example by
> compiling amdgpu support for SI/CIK.
>
> Those amdgpu problems for older ASIC have already been worked on and
> should be fixed by now.

In this case it's a navi23 (so radeon in the marketing sense).

Alex

>
> Regards,
> Christian.
>
> >
> > File the gitlab issue and we should poke amd a but more to take a look.
> >
> > Dave.
>




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