Comment 2 for bug 971621

Traces:

nova delete i1 (uuid: 9b1... / veth0 / loop0 / instance-0000000a)

Name IP veth loop rootfs uuid
--------------------------------------------
i1 4.3 0 0 i-a 9b1...
i2 4.4 1 1 i-b af2...

NOK: loop1 is umounted/disconneced!!!

AMQP: req-d29...

user_uuid: cad... (dodeeric)
project_uuid: c1a... (lc2)

-----

OK (i-a / instance-0000000a):

2012-04-07 10:26:52 INFO nova.virt.libvirt.connection [req-d29c2ab4-cd57-4121-93c2-27e9d56cf1fb cadc85c18c6
a4aee928c19653f48dd45 c1ab5bc8097b48278ef41db02ecf82eb] [instance: 9b1533e4-f973-43ef-a1b5-96ce52ae5db1] Deleting instance files /var/lib/nova/instances/instance-0000000a

NOK (loop1):

2012-04-07 10:26:52 DEBUG nova.utils [req-d29c2ab4-cd57-4121-93c2-27e9d56cf1fb cadc85c18c6a4aee928c19653f48
dd45 c1ab5bc8097b48278ef41db02ecf82eb] Running cmd (subprocess): sudo nova-rootwrap umount /dev/loop1 from
(pid=31501) execute /usr/lib/python2.7/dist-packages/nova/utils.py:219

2012-04-07 10:26:52 DEBUG nova.utils [req-d29c2ab4-cd57-4121-93c2-27e9d56cf1fb cadc85c18c6a4aee928c19653f48
dd45 c1ab5bc8097b48278ef41db02ecf82eb] Running cmd (subprocess): sudo nova-rootwrap losetup --detach /dev/l
oop1 from (pid=31501) execute /usr/lib/python2.7/dist-packages/nova/utils.py:219