On Tue, Jun 14, 2011 at 09:25:22PM -0400, Sasha Levin wrote: > On Tue, 2011-06-14 at 16:42 -0700, Paul E. McKenney wrote: > > On Tue, Jun 14, 2011 at 06:26:01PM -0400, Sasha Levin wrote: > > > Sorry for the delay on this. > > > > Actually, you might have had excellent timing on this one. > > > > Could you please try Shaohua Li's patch at: > > > > https://lkml.org/lkml/2011/6/14/20 > > > > This patch makes RCU much less prone to causing massive scheduler lock > > contention, which might well be the cause of the problems that you > > are seeing. > > This patch has solved the hang issue I've had. kvm tools now boots 60 > vcpus easily with 3.0 kernel. Thank you, Sasha -- I have added your Tested-by. Thanx, Paul -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html