https://bugs.freedesktop.org/show_bug.cgi?id=33762
--- Comment #10 from s3734770@mail.zih.tu-dresden.de 2011-02-01 00:15:31 PST --- Git bisect blamed 14880a510a1a288df0778395097d5a52806abfb0, there are strange things happening. The framerate drops downto 3 FPS and the texture bug appears again.
I also created a patch inspired from glisse that fixes the bug (but is maybe not the correct solution because the tiling management is still unfinished)