This bug is still present after Marek's latest r300g commits: HEAD is commit e3e1ffb2520498584ef402213d0c8aa4303a46a3 Author: Marek Olšák <maraeo@gmail.com> Date: Mon Jan 14 05:51:05 2013 +0100 r300g: set a dummy vertex buffer in context_create so that the driver doesn't crash if an app doesn't set any vertex buffers.