Ack all. This also solved one bug by my hand. Thanks! I observe one point: the performance of high workload interrupt(e.g. 10 gigabyte oplin card) dropped dramatically with smp_send_reschedule() method... In one environment(the speed of oplin card also limited by cpu performance), Using smp_call_function_single() can get more than 1G bit/s stably(native got 1.2G), but smp_send_reschedule() can only got around 600M bit/s... And the rescheduling interrupt number is about 2000/second per cpu. And the interrupt rate is about tens of thousands per second for the device. Anyway, this method is more elegant and correct. Though there is still room for optimize - but of course, the correctness is first priority. -- regards Yang, Sheng -- 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