Re: [git pull] drm for 6.1-rc1

[Alex Deucher]

On Thu, Oct 6, 2022 at 3:48 PM Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> On Thu, Oct 6, 2022 at 12:28 PM Alex Deucher <alexdeucher@xxxxxxxxx> 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...

Your chip is too old to support retry faults so it's likely you could
be just seeing a GPU page fault followed by a hang.  Your chip also
lacks a paging queue, so you would be affected by the TLB issue.

Alex