Re: [PATCHv2 for 6.112 and 6.6 0/2] amdgpu: fix panic on old GPUs

From: Timur Kristóf

Date: Wed Mar 04 2026 - 07:44:43 EST


On Wednesday, March 4, 2026 11:06:53 AM Central European Standard Time
Christian König wrote:
> >
> > Hi Everyone,
> >
> > The patches actually come from a branch of mine:
> > https://gitlab.freedesktop.org/Venemo/linux/-/commits/v6.12.74_si_dc_fixes
> >
> > For context:
> >
> > The crash comes from a patch that I wrote for 6.18 that fixes some issues
> > on the default, non-DC code path, that was backported to stable kernels.
> > DC was not the default code path before Linux 6.19, so I didn't mark the
> > patches that also fix DC for backporting, because I had assumed nobody
> > uses the DC code path on these kernel versions.
> >
> > After a user reported to me that this causes issues for him with DC on
> > 6.17
> > and older kernels, I sent a backported series to Greg and Sasha, in an
> > email thread with the subject line "Fixing an amdgpu crash caused by a
> > backported patch". The fixes were backported to 6.17 then.
> >
> > I assumed that the stable maintainers would backport the fixes to all
> > older
> > kernels that were also affected, but Rosen brought it to my attention that
> > it didn't happen. So I made the backports in the above branch. Rosen then
> > decided to send them to the mailing list.
> >
> > > Hope that helps clear up the situation.
>

Hi Christian,

> In theory Harry an Leo should take care of stuff like this

I don't blame them for this. It is my fault for breaking it in the first place,
and I didn't think there was any interest in using DC on older kernels.

> pretty much everybody is overworked.

Yeah. We all are.

>
> In that case guys feel free to go ahead and ping the stable maintainers that
> something is missing.
>
> Just make sure that when a patch passes through your hands that you add a
> Signed-off-by tag.

Thanks! Probably I should have sent the patches myself, then they already
would have had all the necessary tags. Sorry for the confusion.

Now that the situation is cleared up, is there anything else we need to do for
these two patches here?

Best regards,
Timur