hi: kvm start with disk image on nfs server, when nfs server can not be reached, monitor will be blocked. I change io_thread to SCHED_RR policy, it will work unfluently waiting for disk read/write timeout. I think one solution to this is to change kvm_handle_io in a seperate thread, I will put kvm_handle_io in a new spawned thread, all io request passed in a queue between io_thread and the new spawned thread, it need copy run->io.size*run->io.count bytes from address:(uint8_t *)run + run->io.data_offset. Is this a right direction? any suggestion is welcome, thanks! Green. -- 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