The kernel 2.6.9-22.0.1 appears to fix this so that you don't have to 
comment out dri or turn off hyperthreading.  One lesson I've learned 
though is that hyperthreading on Linux doesn't appear to give you any 
real performance gains and can possibly be less stable in general.  I'm 
not sure if this bug appeared on 'real' SMP systems though.

Thanks,

Greg


John Franks wrote:
> On Tue, 2005-10-11 at 13:38 -0500, Connie Sieh wrote:
> 
>>Not sure if this is related but here is a bugzilla entry that gives some 
>>items to change to try to fix this issue.
>>
>>https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=170008
>>
>>-Connie Sieh
> 
> 
> This is very helpful.  It seems the correct fix is to comment out the 
> line 
> 
> Load "dri"
> 
> in /etc/X11/xorg.conf.  This is better than using a different kernel.
> 
> 

-- 

Gregory Harris
Network Specialist
Department of Mathematics
The University of Kansas
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(785) 864-7311