В сообщении от 14 of September 2010 12:52:57 автор Thomas Gleixner написал:
> Can you try with NOHZ enabled and the following on the kernel command line:
> 
>     processor.max_cstate=1

It works in this case (gears in glxgears move smoothly)
 
> If that works, then try
> 
>     processor.max_cstate=2
> 

Nope, it doesn't work with max_cstate=2

Regards
Vasily