func test test_reprocess_port_when_ovs_restarts fails from time to time

[Rossella Sblendido]

The functional tests func test test_reprocess_port_when_ovs_restarts fails sporadically with

Traceback (most recent call last):
  File "neutron/agent/linux/polling.py", line 56, in stop
    self._monitor.stop()
  File "neutron/agent/linux/async_process.py", line 131, in stop
    raise AsyncProcessException(_('Process is not running.'))
neutron.agent.linux.async_process.AsyncProcessException: Process is not running.

see for example http://logs.openstack.org/98/202098/30/check/gate-neutron-dsvm-functional/8b49362/testr_results.html.gz

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/257284

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/257284
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=9783050e3ea6b9c0201a6d4733d1987839d1df7d
Submitter: Jenkins
Branch: master

commit 9783050e3ea6b9c0201a6d4733d1987839d1df7d
Author: rossella <email address hidden>
Date: Mon Dec 14 12:31:17 2015 +0000

    Don't raise if polling manager is running when stopped

    AsyncProcess.stop() will raise if the process we are trying
    to stop is not running. Some functional tests sporadically
    fail because in the clean up the polling manager is stopped
    without checking if it's still running. Add an except
    in InterfacePollingMinimizer.stop() to avoid raising an
    exception when the monitor is not running.

    Change-Id: Iec8f5039ae5b830836564a1a402ad3e4ba38935d
    Closes-bug: #1525856