Floating ip is not associated with instance

[Steve Martinelli]

https://review.openstack.org/#/c/100152/2 fell flat on tempest tests.

Full logs here: http://logs.openstack.org/52/100152/2/check/check-tempest-dsvm-full-icehouse/da5484f/console.html

2014-06-23 19:43:13.911 | tempest.api.compute.servers.test_server_rescue.ServerRescueTestXML.test_rescued_vm_associate_dissociate_floating_ip[gate]
2014-06-23 19:43:13.911 | -------------------------------------------------------------------------------------------------------------------------
2014-06-23 19:43:13.911 |
2014-06-23 19:43:13.911 | Captured traceback:
2014-06-23 19:43:13.912 | ~~~~~~~~~~~~~~~~~~~
2014-06-23 19:43:13.912 | Traceback (most recent call last):
2014-06-23 19:43:13.912 | File "tempest/api/compute/servers/test_server_rescue.py", line 109, in test_rescued_vm_associate_dissociate_floating_ip
2014-06-23 19:43:13.912 | self.server_id)
2014-06-23 19:43:13.912 | File "tempest/services/compute/xml/floating_ips_client.py", line 100, in disassociate_floating_ip_from_server
2014-06-23 19:43:13.912 | resp, body = self.post(url, str(doc))
2014-06-23 19:43:13.912 | File "tempest/common/rest_client.py", line 218, in post
2014-06-23 19:43:13.912 | return self.request('POST', url, extra_headers, headers, body)
2014-06-23 19:43:13.913 | File "tempest/common/rest_client.py", line 430, in request
2014-06-23 19:43:13.913 | resp, resp_body)
2014-06-23 19:43:13.913 | File "tempest/common/rest_client.py", line 497, in _error_checker
2014-06-23 19:43:13.913 | raise exceptions.UnprocessableEntity(resp_body)
2014-06-23 19:43:13.913 | UnprocessableEntity: Unprocessable entity
2014-06-23 19:43:13.913 | Details: {'message': 'Floating ip 172.24.4.1 is not associated with instance bd9fe211-8c83-45c4-9222-efcb2fe6e963.', 'code': '422'}