On Wed, Jan 22, 2014 at 04:27:45PM +0800, Michael wang wrote: > # CONFIG_PREEMPT_NONE is not set > CONFIG_PREEMPT_VOLUNTARY=y > # CONFIG_PREEMPT is not set Could you try the patch here: lkml.kernel.org/r/20140122102435.GH31570@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx I suspect its the same issue. -- 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