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
