[libvirt-users] Error message doesn't make sense

Hi everyone, I incidentally configured two IDE controller for my machine-1.2 VM(it might be virsh attach-disk to blame), and I got the error message "Only a single IDE controller is unsupported...". I can't understand this error message, I think it means I HAVE to configure two or more IDE controllers until I looked it up in the source. At libvirt-1.2.22/src/qemu/qemu_command.c: 4916 case VIR_DOMAIN_CONTROLLER_TYPE_IDE: 4917 /* Since we currently only support the integrated IDE controller 4918 * on 440fx, if we ever get to here, it's because some other 4919 * machinetype had an IDE controller specified, or a 440fx had 4920 * multiple ide controllers. 4921 */ 4922 if (qemuDomainMachineIsI440FX(domainDef)) 4923 virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", 4924 _("Only a single IDE controller is unsupported " 4925 "for this machine type")); I didn't dig VIR_DOMAIN_CONTROLLER_TYPE_IDE up, but reasoning from the comment, I think this error message should be something like "More than one IDE controllers is not supported for this machine type"