This is a note to let you know that I've just added the patch titled drm/scheduler: fix drm_sched_get_cleanup_job to the 5.6-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-scheduler-fix-drm_sched_get_cleanup_job.patch and it can be found in the queue-5.6 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 4f110d09ba774300091a7cfd59b99ac7b8a2e4a8 Author: Christian König <christian.koenig@xxxxxxx> Date: Sat Apr 11 11:54:01 2020 +0200 drm/scheduler: fix drm_sched_get_cleanup_job commit 8623b5255ae7ccaf276aac3920787bf575fa6b37 upstream. We are racing to initialize sched->thread here, just always check the current thread. Signed-off-by: Christian König <christian.koenig@xxxxxxx> Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@xxxxxxx> Reviewed-by: Kent Russell <kent.russell@xxxxxxx> Link: https://patchwork.freedesktop.org/patch/361303/ Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c index 60c4c6a1aac68..75737ec596141 100644 --- a/drivers/gpu/drm/scheduler/sched_main.c +++ b/drivers/gpu/drm/scheduler/sched_main.c @@ -687,7 +687,7 @@ drm_sched_get_cleanup_job(struct drm_gpu_scheduler *sched) */ if ((sched->timeout != MAX_SCHEDULE_TIMEOUT && !cancel_delayed_work(&sched->work_tdr)) || - __kthread_should_park(sched->thread)) + kthread_should_park()) return NULL; spin_lock_irqsave(&sched->job_list_lock, flags);