Quoting Christian König (2019-08-06 16:01:27) > When reservation_object_add_shared_fence is replacing an old fence with a new > one we should not drop the old one before the new one is in place. > > Otherwise other cores can busy wait for the new one to appear.
I see. The reader will see a refcount==0 fence and restart, whereas by dropping the ref later, that reader has a better chance of getting to the end before noticing the change. > Signed-off-by: Christian König <christian.koe...@amd.com> Reviewed-by: Chris Wilson <ch...@chris-wilson.co.uk> -Chris _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
