Test failed: 004_basic_sanity.snapshots_merge 
Link to Job: http://jenkins.ovirt.org/job/test-repo_ovirt_experimental_4.1/1713/
Link to all logs: http://jenkins.ovirt.org/job/test-repo_ovirt_experimental_4.1/1713/artifact/exported-artifacts/basic-suit-4.1-el7/test_logs/basic-suite-4.1/post-004_basic_sanity.py/
 
Error snippet from the log:
Enginr error:
2017-06-15 09:16:56,989-04 WARN  [org.ovirt.engine.core.bll.GetVmConfigurationBySnapshotQuery] (default task-8) [d18e72b4-f40f-4229-850f-b347ab08aef6] Snapshot '5341b09d-3e06-4dd2-92ec-3325fa50a9d6' does not exist
2017-06-15 09:16:56,989-04 ERROR [org.ovirt.engine.api.restapi.resource.AbstractBackendResource] (default task-8) [] Operation Failed: Entity not found: null
 
VDSM error:

2017-06-15 09:15:14,948-0400 INFO  (jsonrpc/6) [vdsm.api] FINISH teardownImage error=Cannot deactivate Logical Volume: ('General Storage Exception: ("5 [] [\'  Logical volume cb913f2b-22ef-4beb-b9c8-4d865f2e48a7/cb64690e-473d-4c3c-a4e6-640de10f119b in use.\', \'  Logical volume cb913f2b-22ef-4beb-b9c8-4d865f2e48a7/3dd815a0-92a9-4337-b467-6e0dd7fcf223 in use.\']\\ncb913f2b-22ef-4beb-b9c8-4d865f2e48a7/[\'3dd815a0-92a9-4337-b467-6e0dd7fcf223\', \'cb64690e-473d-4c3c-a4e6-640de10f119b\']",)',) from=::ffff:192.168.201.2,43638, flow_id=33e259a3-3db2-4c07-a6f0-a1e5be5b98d6 (api:50)
2017-06-15 09:15:14,949-0400 ERROR (jsonrpc/6) [storage.TaskManager.Task] (Task='d96ad445-3017-4fea-b6d4-59adae63156a') Unexpected error (task:870)
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/task.py", line 877, in _run
    return fn(*args, **kargs)
  File "<string>", line 2, in teardownImage
  File "/usr/lib/python2.7/site-packages/vdsm/common/api.py", line 48, in method
    ret = func(*args, **kwargs)
  File "/usr/share/vdsm/storage/hsm.py", line 3186, in teardownImage
    dom.deactivateImage(imgUUID)
  File "/usr/share/vdsm/storage/blockSD.py", line 1288, in deactivateImage
    lvm.deactivateLVs(self.sdUUID, volUUIDs)
  File "/usr/share/vdsm/storage/lvm.py", line 1304, in deactivateLVs
    _setLVAvailability(vgName, toDeactivate, "n")
  File "/usr/share/vdsm/storage/lvm.py", line 843, in _setLVAvailability
    raise error(str(e))
CannotDeactivateLogicalVolume: Cannot deactivate Logical Volume: ('General Storage Exception: ("5 [] [\'  Logical volume cb913f2b-22ef-4beb-b9c8-4d865f2e48a7/cb64690e-473d-4c3c-a4e6-640de10f119b in use.\', \'  Logical volume cb913f2b-22ef-4beb-b9c8-4d865f2e48a7/3dd815a0-92a9-4337-b467-6e0dd7fcf223 in use.\']\\ncb913f2b-22ef-4beb-b9c8-4d865f2e48a7/[\'3dd815a0-92a9-4337-b467-6e0dd7fcf223\', \'cb64690e-473d-4c3c-a4e6-640de10f119b\']",)',)
2017-06-15 09:15:14,952-0400 INFO  (jsonrpc/6) [storage.TaskManager.Task] (Task='d96ad445-3017-4fea-b6d4-59adae63156a') aborting: Task is aborted: 'Cannot deactivate Logical Volume' - code 552 (task:1175)
2017-06-15 09:15:14,953-0400 ERROR (jsonrpc/6) [storage.Dispatcher] FINISH teardownImage error=Cannot deactivate Logical Volume: ('General Storage Exception: ("5 [] [\'  Logical volume cb913f2b-22ef-4beb-b9c8-4d865f2e48a7/cb64690e-473d-4c3c-a4e6-640de10f119b in use.\', \'  Logical volume cb913f2b-22ef-4beb-b9c8-4d865f2e48a7/3dd815a0-92a9-4337-b467-6e0dd7fcf223 in use.\']\\ncb913f2b-22ef-4beb-b9c8-4d865f2e48a7/[\'3dd815a0-92a9-4337-b467-6e0dd7fcf223\', \'cb64690e-473d-4c3c-a4e6-640de10f119b\']",)',) (dispatcher:78