hi all: 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 have tested a standalone thread to process kvm_handle_io, it can not start up correctly, it may need qemu_mutux protection. as io_thread process different io tasks, is it possible to transfer kvm_handle_io and handle_mmio function into this thread? but the problem will still stay, monitor will still be blocked by read/write disk request. is there anyone that will have a good suggestion? 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