linux-kernel - Re: Radeon regression in 6.6 kernel

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Date:   Mon, 20 Nov 2023 17:08:32 -0500
From:   Phillip Susi <phill@...susis.net>
To:     Christian König 
        <ckoenig.leichtzumerken@...il.com>,
        Dave Airlie <airlied@...il.com>,
        Linux regressions mailing list <regressions@...ts.linux.dev>
Cc:     linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        Luben Tuikov <luben.tuikov@....com>,
        "amd-gfx@...ts.freedesktop.org" <amd-gfx@...ts.freedesktop.org>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>
Subject: Re: Radeon regression in 6.6 kernel

Christian König <ckoenig.leichtzumerken@...il.com> writes:

> 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.

Indeed, the lspci I originally posted does indicate amdgpu.  What is the
difference and should I switch it?  If so, how?

> Those amdgpu problems for older ASIC have already been worked on and 
> should be fixed by now.

I just pulled v6.7-rc2 and it's still broken.  I'll see if I can revert
those 3 patches.