I can confirm that on a clean install of jessie -> SID that this was a problem for me as well. I'm not sure at this point if libvirt was installed prior, but I don't think it was.
As a work-around starting virtlockd.service allowed me to install 1.2.7-9. The problem also re-occurred when updating to 1.2.7.-10 Also, as an aside. I'm not certain if 1.2.7-9 had a bug creating interfaces, or virtlockd.service is required to create them correctly as I was un-able to get network access into the guest on 1.2.7-9 and virtlockd.service not running. ( And I don't have enough time to figure which it was ) -- Andrew Mirantis Ceph community -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org