Re: [Intel-gfx] [PATCH 1/7] drm/i915/selftests: Flush old resets between engines

2018-02-05 Thread Mika Kuoppala
Chris Wilson writes: > When injecting rapid resets, we must be careful to at least wait for the > previous reset to have taken effect and the engine restarted. If we > perform a second reset before that has happened, we will notice that the > engine hasn't recovered and declare it lost, wedging t

[Intel-gfx] [PATCH 1/7] drm/i915/selftests: Flush old resets between engines

2018-02-05 Thread Chris Wilson
When injecting rapid resets, we must be careful to at least wait for the previous reset to have taken effect and the engine restarted. If we perform a second reset before that has happened, we will notice that the engine hasn't recovered and declare it lost, wedging the device and failing. In pract