Hi I tried to add a device to guest from upstream qemu monitor using "device_add". when i try to add VGA, vmware-svga..etc, from qemu monitor my qemu monitor is aborted, Since these devices already registered. I dont see a reason to kill monitor. I think abort() is a bit rough. we need a better way to handle it. If a user try to add a already registered device, qemu should convey this to user saying that, this device already registered and an error message should be fine than aborting qemu. QLIST_FOREACH(block, &ram_list.blocks, next) { if (!strcmp(block->idstr, new_block->idstr)) { fprintf(stderr, "RAMBlock \"%s\" already registered, abort!\n", new_block->idstr); abort(); } Thanks Pradeep -- 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