Am 08.11.2017 um 07:39 schrieb Monk Liu:
> if app close CTX right after IB submit, gpu recover
> will failed to find out the entity/ctx behind the guilty
> job thus lead to bad job skipping in scheduler failed
>
> to fix this corner case just move the job->karma increasing
> out of the condition that the backing entity was found
> that way the job itself will be "guilty" anyway
>
> Change-Id: Ia30f02df9297a343d6d8dace496e237827dd1548
> Signed-off-by: Monk Liu <Monk.Liu at amd.com>
Reviewed-by: Christian König <christian.koenig at amd.com>
> ---
> drivers/gpu/drm/amd/scheduler/gpu_scheduler.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
> index 7aa6455..720fd1b 100644
> --- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
> +++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
> @@ -464,6 +464,7 @@ void amd_sched_hw_job_reset(struct amd_gpu_scheduler *sched, struct amd_sched_jo
> spin_unlock(&sched->job_list_lock);
>
> if (bad) {
> + atomic_inc(&bad->karma);
> /* don't increase @bad's karma if it's from KERNEL RQ,
> * becuase sometimes GPU hang would cause kernel jobs (like VM updating jobs)
> * corrupt but keep in mind that kernel jobs always considered good.
> @@ -474,7 +475,7 @@ void amd_sched_hw_job_reset(struct amd_gpu_scheduler *sched, struct amd_sched_jo
> spin_lock(&rq->lock);
> list_for_each_entry_safe(entity, tmp, &rq->entities, list) {
> if (bad->s_fence->scheduled.context == entity->fence_context) {
> - if (atomic_inc_return(&bad->karma) > bad->sched->hang_limit)
> + if (atomic_read(&bad->karma) > bad->sched->hang_limit)
> if (entity->guilty)
> atomic_set(entity->guilty, 1);
> break;
