i am using openstack Kilo on debian, ceph firefly(0.80.7), libvirt 1.2.9, qemu-kvm 2.3

i am able to create cinder volume with ceph as backend, but when i am trying to attach volume to running instance it failing with the error
libvirtError: internal error: unable to execute QEMU command 'device_add': Property 'virtio-blk-device.drive' can't find value 'drive-virtio-disk2' and

Unknown protocol 'rbd'

I am seeing same issue at http://permalink.gmane.org/gmane.comp.file-systems.ceph.devel/11230, this issue is in earlier versions of libvirt, but it is fixed in next version. Now again I am getting this error in 1.2.9.

Please find the attached nova compute and libvirt log.
Thanks & Regards,
Naga Venkata