Hi I tried to add a device to guest from upstream qemu monitor using "device_add". Unknowingly i try to add already registered devices from qemu monitor, my qemu monitor is aborted. I don't 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(); } If i return some other value in above code, instead of abort(), I would need change the code for every device, which i dont want to. Is there a way to check, if device is already enrolled or not in the very beginning of "device_add" call. 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