Ceph » rbd

Found that the 'domblkinfo' command fails while 'domblklist' and 'domblkstat' commands function normally.

1. Environment:
   OpenStack Havana
   Ubuntu 12.04 LTS

1. Example output:
   ~# virsh domblklist instance-00002d07
   Target Source
   ------------------------------------------------
   vda rtp1-1-csx-cinder-volume-1/volume-01bae4ef-d270-4e07-93cb-c98cf66bd9c1

~# virsh domblkstat instance-00002d07 vda
vda rd_req 6107
vda rd_bytes 131831808
vda wr_req 25024
vda wr_bytes 121126912
vda flush_operations 12192
vda rd_total_times 10100179441
vda wr_total_times 10211260028
vda flush_total_times 79084523929

~# virsh domblkinfo instance-00002d07 vda
error: cannot stat file 'rtp1-1-csx-cinder-volume-1/volume-01bae4ef-d270-4e07-93cb-c98cf66bd9c1': Bad file descriptor