[Bug 204683] amdgpu: ring sdma0 timeout

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Thu Sep 12 12:51:13 UTC 2019


--- Comment #9 from Matthias Heinz (mh at familie-heinz.name) ---
A small update.

I managed to go down even further. I'm currently at e6d2421343a7 in drm-next
and I see the following error:

Sep 12 14:32:44 egalite kernel: [drm:drm_atomic_helper_wait_for_flip_done
[drm_kms_helper]] *ERROR* [CRTC:47:crtc-0] flip_done timed out
Sep 12 14:32:44 egalite kernel: [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring
gfx timeout, signaled seq=1023042, emitted seq=1023043
Sep 12 14:32:44 egalite kernel: [drm:amdgpu_job_timedout [amdgpu]] *ERROR*
Process information: process 7DaysToDie.x86_ pid 6696 thread 7DaysToDie:cs0 pid

Now it looks a lot like #201957, but I have no problems with kernels before and
5.0. It started with 5.1. So I'm not sure how similar it is.

I have one last idea what to do. The commit before e6d2421343a7 results in a
similar problem, but the display doesn't go blank and to standby. Only the
picture freezes and that's it.
I will try to find the commit that results in this bug and then see, if the
kernel of the commit before that one still has my main problem in it. If not
I'll post the range, probably somewhere inbetween is the error itself hidden.
Otherwise testing is not possible, since it freezes pretty fast and the ring
timeout bug takes up to 45 minutes to appear.

Since I'm at the 40th kernels so far, any help or even a hint is highly
appreciated. (I could use a faster testing solution.)

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