(In reply to Andrey Grodzovsky from comment #33)
> Another thing - I noted a regression in existing driver code - can you
> manually apply this patch and test ?
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/
> ?id=f7c8930d9e8b188caa53705883373c49f95fd284

Just to be clear - apply the first 2 patches and this one on top 
So
0001-drm-scheduler-rework-job-destruction.patch
0002-drm-sched-Adapt-drivers-to-new-job-destruction-logic.patch
And then the patch from the link.