https://bugs.freedesktop.org/show_bug.cgi?id=29978
--- Comment #8 from Nicolas Kaiser nikai@nikai.net 2010-09-14 09:42:52 PDT --- I noticed that I can make some other applications lock up the GPU in a quite similar way, using MESA_GLSL=nopt:
Celestia locks up on start, but not immediately: Sun gets displayed without problem, the GPU locks up as soon as Earth should get rendered. Oolite also locks up on start, as soon as a spaceship should get rendered.
Currently I'm using mesa 9476efe77ff196993937c3aa2e5bca725ceb0b41 and kernel 2.6.35.4 (with Marek Olšák's 10 seconds patch http://comments.gmane.org/gmane.comp.video.dri.devel/49821 ).
Without MESA_GLSL=nopt both are working without a problem. However, with it both also lock up using mesa a09a8ec12d76e1fb1583fa99cf9f48246c108d7b and reverting acd7c21541110d7ae6b9e63647391f65946e5c5d and 6c0ba32fd1466e8c1700acab3003dc1fe1deb337, as in comment #6.