Re: [git pull] drm for 6.1-rc1

[Bert Karwatzki <spasswolf@web.de>]

On Thu, Oct 6, 2022 at 3:48 PM Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>
> On Thu, Oct 6, 2022 at 12:28 PM Alex Deucher <alexdeucher@gmail.com>
wrote:
> >
> > Maybe you are seeing this which is an issue with GPU TLB flushes
which
> > is kind of sporadic:
> > https://gitlab.freedesktop.org/drm/amd/-/issues/2113
>
> Well, that seems to be 5.19, and while timing changes (or whatever
> other software updates) could have made it start trigger, this
machine
> has been pretty solid otgerwise.
>
> > Are you seeing any GPU page faults in your kernel log?
>
> Nothing even remotely like that "no-retry page fault" in that issue
> report. Of course, if it happens just before the whole thing locks
> up...

There's also this issue with the drm scheduler which causes a lockup
without messages (but with a flashing capslock LED). Going back to
checking the finished fence solves this for me on this device:
03:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Navi
23 [Radeon RX 6600/6600 XT/6600M] (rev c3)
https://gitlab.freedesktop.org/drm/amd/-/issues/2179