On Tue, Nov 08, 2011 at 11:13:12PM +0000, Chris Wilson wrote: > Rather than relying on the hardware to do this correctly, we can > trivially do it ourselves. > > This fixes a very reliable crash on d-i-n with all bits enabled during a > cairo-trace replay. The symptoms of the crash is that we continue to > write commands into the render ring buffer past the active head > position, leading to undefined operations. > > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk> > Cc: stable at kernel.org I guess this is just the usual "snb doesn't like being pushed to hard bug" resulting in random crashes with confusing error_states. So I think I'll drop this. Correct? -Daniel -- Daniel Vetter Mail: daniel at ffwll.ch Mobile: +41 (0)79 365 57 48