Hi, we have OST failing on Master

Test failed: [ 004_basic_sanity.live_storage_migration ]
Link to suspected patches: https://gerrit.ovirt.org/#/c/79246/
Link to Job: http://jenkins.ovirt.org/job/test-repo_ovirt_experimental_master/7555/
Error snippet from the log: http://jenkins.ovirt.org/job/test-repo_ovirt_experimental_master/7555/artifact/exported-artifacts/basic-suit-master-el7/test_logs/basic-suite-master/post-004_basic_sanity.py/

<error>
[Cannot move Virtual Disk. The disk vm0_disk0 is plugged to non-Down VMs: vm0]
</error>

<engine log>
2017-07-12 12:19:32,547-04 INFO  [org.ovirt.engine.core.bll.storage.disk.MoveDisksCommand] (default task-2) [4cbc2554-837c-4f76-94db-3e9312eee9d9] Running command: MoveDisksCommand internal: false. Entities affected :  ID: eb4127a6-cc05-4aea-9250-9792447e77e8 Type: DiskAction group CONFIGURE_DISK_STORAGE with role type USER
2017-07-12 12:19:32,552-04 INFO  [org.ovirt.engine.core.bll.AddDeprecatedApiEventCommand] (default task-4) [5cb4e759] Running command: AddDeprecatedApiEventCommand internal: false.
2017-07-12 12:19:32,616-04 INFO  [org.ovirt.engine.core.bll.snapshots.CreateAllSnapshotsFromVmCommand] (default task-4) [568e6d7d-3a5f-4f97-bb39-8b4d2d4ae1da] Lock Acquired to object 'EngineLock:{exclusiveLocks='[f66c92f3-474f-4b89-8ba3-56a583ddad89=VM]', sharedLocks=''}'
2017-07-12 12:19:32,642-04 INFO  [org.ovirt.engine.core.bll.storage.lsm.LiveMigrateVmDisksCommand] (default task-2) [4cbc2554-837c-4f76-94db-3e9312eee9d9] Lock Acquired to object 'EngineLock:{exclusiveLocks='[eb4127a6-cc05-4aea-9250-9792447e77e8=DISK]', sharedLocks='[4c13d9f7-faf7-4b43-90f7-5ac7438efb80=VM]'}'
2017-07-12 12:19:32,658-04 INFO  [org.ovirt.engine.core.bll.snapshots.CreateAllSnapshotsFromVmCommand] (default task-4) [568e6d7d-3a5f-4f97-bb39-8b4d2d4ae1da] Running command: CreateAllSnapshotsFromVmCommand internal: false. Entities affected :  ID: f66c92f3-474f-4b89-8ba3-56a583ddad89 Type: VMAction group MANIPULATE_VM_SNAPSHOTS with role type USER
2017-07-12 12:19:32,681-04 INFO  [org.ovirt.engine.core.bll.snapshots.CreateSnapshotCommand] (default task-4) [568e6d7d-3a5f-4f97-bb39-8b4d2d4ae1da] Running command: CreateSnapshotCommand internal: true. Entities affected :  ID: 00000000-0000-0000-0000-000000000000 Type: Storage
2017-07-12 12:19:32,691-04 WARN  [org.ovirt.engine.core.bll.storage.lsm.LiveMigrateVmDisksCommand] (default task-2) [4cbc2554-837c-4f76-94db-3e9312eee9d9] Validation of action 'LiveMigrateVmDisks' failed for user admin@internal-authz. Reasons: VAR__ACTION__MOVE,VAR__TYPE__DISK,ACTION_TYPE_FAILED_DISK_PLUGGED_TO_NON_DOWN_VMS,$DiskName vm0_disk0,$VmList vm0
2017-07-12 12:19:32,692-04 INFO  [org.ovirt.engine.core.bll.storage.lsm.LiveMigrateVmDisksCommand] (default task-2) [4cbc2554-837c-4f76-94db-3e9312eee9d9] Lock freed to object 'EngineLock:{exclusiveLocks='[eb4127a6-cc05-4aea-9250-9792447e77e8=DISK]', sharedLocks='[4c13d9f7-faf7-4b43-90f7-5ac7438efb80=VM]'}'
2017-07-12 12:19:32,701-04 ERROR [org.ovirt.engine.api.restapi.resource.AbstractBackendResource] (default task-2) [] Operation Failed: [Cannot move Virtual Disk. The disk vm0_disk0 is plugged to non-Down VMs: vm0]
<engine log>

--
Regards,
Evgheni Dereveanchin