I've raised it up when Christian make page fault, at that patch, amdgpu_job_submit_direct uses exclusive page fault ring for that. But if you use amdgpu_job_submit_direct for gerneral rings ocuppied by scheduler, I guess varias bugs will happen. -David 在 2019/7/9 12:53, Kuehling, Felix 写道: > I'm seeing some weird intermittent bugs (vm faults, hangs, etc) when > trying to use amdgpu_job_submit_direct. I'm wondering if there is a > possibility of a race condition, when a submit_direct and a GPU > scheduler thread try to submit to the same ring at the same time. I > didn't see any locking to allow multiple threads safely submitting to > the same ring. > > Am I missing something? > > Thanks, > Felix > _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
