same memory fault on warzone2100:
http://phoronix.com/forums/showthread.php?33035-warzone2100-broke-on-the-latest-D-U-11.04-2.6.38rc5-xorg-edgers
i post about this bug 1 day ago.
SuperTuxRacer 0.7(which is Irlicht based) Memory Faults on initialization when using gallium libGL.so, but it works w/o any problems using Mesa Classic libGL.
I gues it happens due to VBO bugs in r300g, which arent avaible in classic Mesa.
I know it works using r600g because of answers from many persons.
I am using fresh airlied's D-R-T kernel with DDX/DRI/Mesa from Master.
I got multilib system, but STK and 99% apps I am using are 64bit. Gfx card is FireGL V5200/Radeon X1600 inside T60p.
There are logs, etc:
http://carme.pld-linux.org/~evil/radeon/STK_r300g/
same memory fault on warzone2100:
http://phoronix.com/forums/showthread.php?33035-warzone2100-broke-on-the-latest-D-U-11.04-2.6.38rc5-xorg-edgers
i post about this bug 1 day ago.
other games like nexuiz or world of goo work well with the r300g driver.
For me too, so I filed a bug on bugzilla with longer description of the bug:
https://bugs.freedesktop.org/show_bug.cgi?id=34418
Fixed in latest git.