gistfile1.txt

AUDIT [nova.compute.manager] Rescuing
WARNING [nova.compute.manager] Unable to find a different image to use for rescue VM, using instance's current image
INFO [nova.compute.manager] Task possibly preempted: Unexpected task state: expecting ('rescuing',) but the actual state is None
}}}

Traceback (most recent call last):
  File "nova/tests/compute/test_compute.py", line 1883, in test_rescue
    self.compute.rescue_instance(self.context, instance, None)
  File "nova/compute/manager.py", line 401, in decorated_function
    return function(self, context, *args, **kwargs)
  File "nova/exception.py", line 88, in wrapped
    payload)
  File "nova/openstack/common/excutils.py", line 82, in __exit__
    six.reraise(self.type_, self.value, self.tb)
  File "nova/exception.py", line 71, in wrapped
    return f(self, context, *args, **kw)
  File "nova/compute/manager.py", line 278, in decorated_function
    LOG.info(_("Task possibly preempted: %s") % e.format_message())
  File "nova/openstack/common/excutils.py", line 82, in __exit__
    six.reraise(self.type_, self.value, self.tb)
  File "nova/compute/manager.py", line 272, in decorated_function
    return function(self, context, *args, **kwargs)
  File "nova/compute/manager.py", line 336, in decorated_function
    function(self, context, *args, **kwargs)
  File "nova/compute/manager.py", line 314, in decorated_function
    kwargs['instance'], e, sys.exc_info())
  File "nova/openstack/common/excutils.py", line 82, in __exit__
    six.reraise(self.type_, self.value, self.tb)
  File "nova/compute/manager.py", line 302, in decorated_function
    return function(self, context, *args, **kwargs)
  File "nova/compute/manager.py", line 3008, in rescue_instance
    instance.save(expected_task_state=task_states.RESCUING)
  File "nova/objects/base.py", line 183, in wrapper
    return fn(self, ctxt, *args, **kwargs)
  File "nova/objects/instance.py", line 473, in save
    columns_to_join=_expected_cols(expected_attrs))
  File "nova/db/api.py", line 780, in instance_update_and_get_original
    columns_to_join=columns_to_join)
  File "nova/db/sqlalchemy/api.py", line 164, in wrapper
    return f(*args, **kwargs)
  File "nova/db/sqlalchemy/api.py", line 2226, in instance_update_and_get_original
    columns_to_join=columns_to_join)
  File "nova/db/sqlalchemy/api.py", line 2277, in _instance_update
    actual=actual_state, expected=expected)
UnexpectedTaskStateError: Unexpected task state: expecting ('rescuing',) but the actual state is None
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