LVM: error_deleting status when deleting volume that does not exist on backend

additional operations posted on pastebin here:

http://paste.openstack.org/show/616719/

http://paste.openstack.org/show/616728/

http://paste.openstack.org/show/616731/

http://paste.openstack.org/show/616746/

http://paste.openstack.org/show/616750/

The problem came up after I deleted instances, when I could not delete the volumes this was not possible.

Openstack was installed through the packstack --allinone and because the default space was little, I created a loopback (/dev/loop1) I formatted device and made it to become a physical volume and extended the volume group created by default from the Packstack installation with new pv.

[root@localhost ~]# lvs
  WARNING: Device for PV mFRxBp-h855-e9nF-gfSs-MVrm-03d1-CGb8ky not found or rejected by a filter.
  LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
  volume-4ddc80d5-c3ed-4770-a7c6-3c8356674d79 cinder-volumes -wi------- 10.00g
  volume-6ca23cd3-879d-4f22-ac13-95888198cdad cinder-volumes -wi------- 6.00g
  volume-b7fe5630-62cd-4a4b-a0b6-ce3dcc563bdd cinder-volumes -wi-----p- 10.00g
  volume-ec9fd81d-0490-46f4-9d68-d039c002afc5 cinder-volumes -wi-----p- 10.00g
  home cl -wi-ao---- 100.00g
  root cl -wi-ao---- 291.76g
  swap cl -wi-ao---- 16.00g
[root@localhost ~]# vgs
  WARNING: Device for PV mFRxBp-h855-e9nF-gfSs-MVrm-03d1-CGb8ky not found or rejected by a filter.
  VG #PV #LV #SN Attr VSize VFree
  cinder-volumes 2 4 0 wz-pn- 60.59g 24.59g
  cl 2 3 0 wz--n- 612.38g 204.62g
[root@localhost ~]# lvremove volume-4ddc80d5-c3ed-4770-a7c6-3c8356674d79 cinder-volumes
  Volume group "volume-4ddc80d5-c3ed-4770-a7c6-3c8356674d79" not found
  Cannot process volume group volume-4ddc80d5-c3ed-4770-a7c6-3c8356674d79
  WARNING: Device for PV mFRxBp-h855-e9nF-gfSs-MVrm-03d1-CGb8ky not found or rejected by a filter.
  Logical volume "volume-4ddc80d5-c3ed-4770-a7c6-3c8356674d79" successfully removed
  Logical volume "volume-6ca23cd3-879d-4f22-ac13-95888198cdad" successfully removed
  Logical volume "volume-ec9fd81d-0490-46f4-9d68-d039c002afc5" successfully removed
  Logical volume "volume-b7fe5630-62cd-4a4b-a0b6-ce3dcc563bdd" successfully removed

romoving a ghost logical volume, it has removed all ghost lv, but it remained only a ghost lv that seems attached to an instance, but this instance no longer exist..

[root@localhost ~(keystone_admin)]# cinder list
+--------------------------------------+-----------+------+------+-------------+----------+--------------------------------------+
| ID | Status | Name | Size | Volume Type | Bootable | Attached to |
+--------------------------------------+-----------+------+------+-------------+----------+--------------------------------------+
| b7fe5630-62cd-4a4b-a0b6-ce3dcc563bdd | available | | 10 | iscsi | true | 02875333-de15-4d04-b0d1-e97c009067df |
+--------------------------------------+-----------+------+------+-------------+----------+--------------------------------------+

[root@localhost ~(keystone_admin)]# nova list
+--------------------------------------+----------+--------+------------+-------------+----------------------+
| ID | Name...