GLX DRI crashes with SIGILL

[Greg Stark <gsstark@mit.edu>]

I just updated all my X packages (to 4.2.1-12.1) and now I can't play quake!

Actually even glxgears fails, both fail with SIGILL:

Program received signal SIGILL, Illegal instruction.
[Switching to Thread 16384 (LWP 20878)]
0x4042a021 in __driCreateScreen () from /usr/X11R6/lib/modules/dri/mga_dri.so
(gdb) bt
#0  0x4042a021 in __driCreateScreen ()
   from /usr/X11R6/lib/modules/dri/mga_dri.so
#1  0x403af259 in __driCreateScreen ()
   from /usr/X11R6/lib/modules/dri/mga_dri.so
#2  0x4041e2ef in __driCreateScreen ()
   from /usr/X11R6/lib/modules/dri/mga_dri.so
#3  0x40369197 in __driCreateScreen ()
   from /usr/X11R6/lib/modules/dri/mga_dri.so
#4  0x403696fa in __driCreateScreen ()
   from /usr/X11R6/lib/modules/dri/mga_dri.so
#5  0x08049c54 in ?? ()
#6  0x00000001 in ?? ()


-- 
greg