https://bugs.freedesktop.org/show_bug.cgi?id=89034
--- Comment #25 from Lorenzo Bona lorenz.bona@gmail.com --- (In reply to smoki from comment #24)
Created attachment 113716 [details] stacking.png
In Stacking game (as another example) rendering is also borked but differently, and so on...
Have you already tried this patch from Marek? http://cgit.freedesktop.org/mesa/mesa/commit/?id=7692704b144b2aa9a57767a4321...
Rendering issue in Dota2 are quite gone now, sometimes you can see little glitch here and there, but very rarely.