After the change "cleanup NovaObjectDictCompat from virtual_interface" [1] was merged into Nova on the morning of August 5th, Tintri's CI for Cinder started failing 13 test cases that involve a volume being attached to an instance [2]. I have verified that the tests fail with the above mentioned change and pass when running against the previous commit. If anyone knows why this patch is causing an issue or is experiencing similar problems, please let me know. In the meantime, expect Tintri's CI to be either down or reporting failures until a solution is found. [1] https://review.openstack.org/#/c/200823/ [2] http://openstack-ci.tintri.com/tintri/refs-changes-06-201406-35/ --