Hi Kevin, doing a
virsh detach-device ... ends up in the following QEMU monitor commands: 1. device_del ... 2. drive_del ... qmp_device_del() performs the device unplug path. In case of a block device do_drive_del() tries to prevent further IO against the host device. However, bdrv_find() during drive_del() results in an error, because the device is already gone. Due to this error all the bdrv_xxx calls to quiesce the block driver as well as all other processing is skipped. Is the sequence that libvirt triggers OK? Shouldn't drive_del be executed first? Thanks, Heinz