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[Mathieu Rohon <mathieu.rohon@xxxxxxxxx>]

** Also affects: nova
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1274160

Title:
  port_update from nova could potentially occurs after
  get_device_details/update_device_up

Status in OpenStack Neutron (virtual network service):
  New
Status in OpenStack Compute (Nova):
  New

Bug description:
  during live-migration, if neutron process port_update(binding:host)
  after processing the rpc message get_device_details/update_device_up,
  the port will remain in a BUILD state.

  this is a race condition that I have never seen, but I think this
  could potentially occurs, since the agent could trigger its RPC
  message before neutron receives its API call.

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