On (11/04/10 18:32), Peter Zijlstra wrote:
> Subject: sched: Fixup cross sched_class wakeup preemption
> From: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Date: Sun Oct 31 12:37:04 CET 2010
> 
> Instead of dealing with sched classes inside each check_preempt_curr()
> implementation, pull out this logic into the generic wakeup preemption
> path.
> 
> This fixes a hang in KVM (and others) where we are waiting for the
> stop machine thread to run..
> 

Hello,

Peter, patch seems to work.


Tested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>


	Sergey