I have  installed OpenStack : Icehouse/stable version

When i am trying to repeat the steps from 7-9,  my vm goes to Shutoff state not in Error state.
May be you are using an older version of openstack and getting this error.

Steps are shown here : 

stack@ThinkCentre-M91P:~$ nova list
+--------------------------------------+-----------+-----------+----------------+-------------------+-----------------------+
| ID                                            | Name   | Status | Task State | Power State | Networks          |
+--------------------------------------+-----------+-----------+----------------+--------------------+----------------------+
| ea991170-e687-4827-bf66-b7d7f02f50ff | CIRROS | ACTIVE | -          | Running     | private=10.0.0.5 |
+--------------------------------------+--------+--------+------------+-------------+------------------+
stack@ThinkCentre-M91P:~$ nova stop cirros
stack@ThinkCentre-M91P:~$ nova list
+--------------------------------------+--------+---------+------------+-------------+------------------+
| ID                                   | Name   | Status  | Task State | Power State | Networks         |
+--------------------------------------+--------+---------+------------+-------------+------------------+
| ea991170-e687-4827-bf66-b7d7f02f50ff | CIRROS | SHUTOFF | -          | Shutdown    | private=10.0.0.5 |
+--------------------------------------+--------+---------+------------+-------------+------------------+
stack@ThinkCentre-M91P:~$ nova resize cirros 2 --poll

Server resizing... 100% complete
Finished
stack@ThinkCentre-M91P:~$ nova list
+--------------------------------------+--------+---------------+------------+-------------+------------------+
| ID                                   | Name   | Status        | Task State | Power State | Networks         |
+--------------------------------------+--------+---------------+------------+-------------+------------------+
| ea991170-e687-4827-bf66-b7d7f02f50ff | CIRROS | VERIFY_RESIZE | -          | Shutdown    | private=10.0.0.5 |
+--------------------------------------+--------+---------------+------------+-------------+------------------+
       
stack@ThinkCentre-M91P:~$ nova resize-revert cirros
stack@ThinkCentre-M91P:~$ nova list
+--------------------------------------+--------+---------+------------+-------------+------------------+
| ID                                   | Name   | Status  | Task State | Power State | Networks         |
+--------------------------------------+--------+---------+------------+-------------+------------------+
| ea991170-e687-4827-bf66-b7d7f02f50ff | CIRROS | SHUTOFF | -          | Shutdown    | private=10.0.0.5 |
+--------------------------------------+--------+---------+------------+-------------+------------------+
stack@ThinkCentre-M91P:~$ nova resize cirros 2 --poll

Server resizing... 100% complete
Finished
stack@ThinkCentre-M91P:~$ nova list
+--------------------------------------+--------+---------------+------------+-------------+------------------+
| ID                                   | Name   | Status        | Task State | Power State | Networks         |
+--------------------------------------+--------+---------------+------------+-------------+------------------+
| ea991170-e687-4827-bf66-b7d7f02f50ff | CIRROS | VERIFY_RESIZE | -          | Shutdown    | private=10.0.0.5 |
+--------------------------------------+--------+---------------+------------+-------------+------------------+
stack@ThinkCentre-M91P:~$ nova resize-revert cirros
stack@ThinkCentre-M91P:~$ nova list
+--------------------------------------+--------+---------+------------+-------------+------------------+
| ID                                   | Name   | Status  | Task State | Power State | Networks         |
+--------------------------------------+--------+---------+------------+-------------+------------------+
| ea991170-e687-4827-bf66-b7d7f02f50ff | CIRROS | SHUTOFF | -          | Shutdown    | private=10.0.0.5 |
+--------------------------------------+--------+---------+------------+-------------+------------------+