Hi Chris, When running the new dmabuf-selftests on two different systems, I get: dma-buf: Running sanitycheck dma-buf: Running dma_fence sizeof(dma_fence)=48 dma-buf: Running dma_fence/sanitycheck dma-buf: Running dma_fence/test_signaling dma-buf: Running dma_fence/test_add_callback dma-buf: Running dma_fence/test_late_add_callback dma-buf: Running dma_fence/test_rm_callback dma-buf: Running dma_fence/test_late_rm_callback dma-buf: Running dma_fence/test_status dma-buf: Running dma_fence/test_error dma-buf: Running dma_fence/test_wait dma-buf: Running dma_fence/test_wait_timeout dma-buf: Running dma_fence/test_stub dma-buf: Running dma_fence/race_signal_callback thread_signal_callback[0] completed 28855 passes, 3929 misses thread_signal_callback[1] completed 28846 passes, 3918 misses thread_signal_callback[0] completed 37179 passes, 37179 misses thread_signal_callback[1] completed 37184 passes, 37183 misses and dma-buf: Running sanitycheck dma-buf: Running dma_fence sizeof(dma_fence)=64 dma-buf: Running dma_fence/sanitycheck dma-buf: Running dma_fence/test_signaling dma-buf: Running dma_fence/test_add_callback dma-buf: Running dma_fence/test_late_add_callback dma-buf: Running dma_fence/test_rm_callback dma-buf: Running dma_fence/test_late_rm_callback dma-buf: Running dma_fence/test_status dma-buf: Running dma_fence/test_error dma-buf: Running dma_fence/test_wait dma-buf: Running dma_fence/test_wait_timeout dma-buf: Running dma_fence/test_stub dma-buf: Running dma_fence/race_signal_callback thread_signal_callback[0] completed 3423 passes, 2148 misses thread_signal_callback[1] completed 2360 passes, 9 misses thread_signal_callback[0] completed 4028 passes, 4028 misses thread_signal_callback[1] completed 8080 passes, 8079 misses Unfortunately it is not clear to me if this is good or bad? Perhaps the test output can be improved, e.g. with a clear PASS/FAIL output? Thanks! Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds