https://bugs.freedesktop.org/show_bug.cgi?id=50655
--- Comment #25 from Alex Deucher agd5f@yahoo.com --- Created attachment 71346 --> https://bugs.freedesktop.org/attachment.cgi?id=71346&action=edit possible fix
Try this patch. It re-emits most of the invariant state at draw time. If it helps, please try commenting out (change the #if 1 to #if 0) each new section until you are able to trigger the lock ups again so we can narrow down which state needs to be re-emitted at draw time.