On 01/07/16 14:29, H. Peter Anvin wrote: > > I would be very interested in knowing if replacing the final clflushopt > with a clflush would resolve your problems (in which case the last mb() > shouldn't be necessary either.) > Nevermind. CLFLUSH is not ordered with regards to CLFLUSHOPT to the same cache line. Could you add a sync_cpu(); call to the end (can replace the final mb()) and see if that helps your case? -hpa _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel