Attached is a patch which I can confirm fixes the issue on my machine. Unfortunatly, my mail to mesa3d-dev appears to have vanished into the ether so I will resend it there to see I can get some feedback.
Have a nice day, -- Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/ > From each according to his ability. To each according to his ability to > litigate.
diff -ur Mesa-6.4.2/src/mesa/drivers/dri/r128/r128_span.c mesa-6.4.2/src/mesa/drivers/dri/r128/r128_span.c --- Mesa-6.4.2/src/mesa/drivers/dri/r128/r128_span.c 2005-07-01 02:08:52.000000000 +0200 +++ mesa-6.4.2/src/mesa/drivers/dri/r128/r128_span.c 2006-06-19 15:18:38.000000000 +0200 @@ -111,6 +111,12 @@ * Depth buffer */ +/* These functions require locking */ +#undef HW_LOCK +#undef HW_UNLOCK +#define HW_LOCK() LOCK_HARDWARE(R128_CONTEXT(ctx)); +#define HW_UNLOCK() UNLOCK_HARDWARE(R128_CONTEXT(ctx)); + /* 16-bit depth buffer functions */
