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Reviewed:  https://review.openstack.org/629335
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=c6d358d4c6926638fe9d5194e3da112c2750c6a4
Submitter: Zuul
Branch:    master

commit c6d358d4c6926638fe9d5194e3da112c2750c6a4
Author: Ben Nemec <bnemec@xxxxxxxxxx>
Date:   Tue Jan 8 23:59:10 2019 +0000

    Define types for C calls in netlink_lib
    
    Previously this was not done, which meant all arguments were
    assumed to be ints. As long as we didn't get any large pointer
    addresses this worked fine, but for some reason the addition of
    threading to oslo.privsep triggered larger addresses that were then
    truncated. This caused segfaults in the underlying C library because
    we were passing it invalid pointers.
    
    This change sets argument and return types for all of the calls
    that are used in the module.
    
    Change-Id: I9dbbb01eac8cf7cded7794f8ba69797d6357eeec
    Closes-Bug: 1810518


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1810518

Title:
  neutron-functional tests failing with oslo.privsep 1.31

Status in neutron:
  Fix Released
Status in oslo.privsep:
  Invalid

Bug description:
  Example of failure: http://logs.openstack.org/99/597599/7/gate
  /neutron-functional/87a8d1c/logs/testr_results.html.gz

  It's similar error in all tests:

  DEBUG [stevedore.extension] found extension EntryPoint.parse('kombu = oslo_messaging._drivers.impl_rabbit:RabbitDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('fake = oslo_messaging._drivers.impl_fake:FakeDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('rabbit = oslo_messaging._drivers.impl_rabbit:RabbitDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('amqp = oslo_messaging._drivers.impl_amqp1:ProtonDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('kafka = oslo_messaging._drivers.impl_kafka:KafkaDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('kombu = oslo_messaging._drivers.impl_rabbit:RabbitDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('fake = oslo_messaging._drivers.impl_fake:FakeDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('rabbit = oslo_messaging._drivers.impl_rabbit:RabbitDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('amqp = oslo_messaging._drivers.impl_amqp1:ProtonDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('kafka = oslo_messaging._drivers.impl_kafka:KafkaDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('kombu = oslo_messaging._drivers.impl_rabbit:RabbitDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('fake = oslo_messaging._drivers.impl_fake:FakeDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('rabbit = oslo_messaging._drivers.impl_rabbit:RabbitDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('amqp = oslo_messaging._drivers.impl_amqp1:ProtonDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('kafka = oslo_messaging._drivers.impl_kafka:KafkaDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('kombu = oslo_messaging._drivers.impl_rabbit:RabbitDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('fake = oslo_messaging._drivers.impl_fake:FakeDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('rabbit = oslo_messaging._drivers.impl_rabbit:RabbitDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('amqp = oslo_messaging._drivers.impl_amqp1:ProtonDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('kafka = oslo_messaging._drivers.impl_kafka:KafkaDriver')
     DEBUG [stevedore.extension] found extension EntryPoint.parse('neutron = neutron.conf.policies:list_rules')
     DEBUG [neutron.policy] Loaded default policies from ['neutron'] under neutron.policies entry points
     DEBUG [oslo_policy.policy] The policy file policy.json could not be found.
  }}}

  traceback-1: {{{
  Traceback (most recent call last):
    File "/opt/stack/new/neutron/.tox/dsvm-functional/local/lib/python2.7/site-packages/fixtures/fixture.py", line 208, in setUp
      raise SetupError(details)
  fixtures.fixture.SetupError: {}
  }}}

  traceback-2: {{{
  Traceback (most recent call last):
    File "/opt/stack/new/neutron/.tox/dsvm-functional/local/lib/python2.7/site-packages/fixtures/fixture.py", line 208, in setUp
      raise SetupError(details)
  fixtures.fixture.SetupError: {}
  }}}

  traceback-3: {{{
  Traceback (most recent call last):
    File "/opt/stack/new/neutron/.tox/dsvm-functional/local/lib/python2.7/site-packages/fixtures/fixture.py", line 208, in setUp
      raise SetupError(details)
  fixtures.fixture.SetupError: {}
  }}}

  Traceback (most recent call last):
    File "/opt/stack/new/neutron/.tox/dsvm-functional/local/lib/python2.7/site-packages/fixtures/fixture.py", line 197, in setUp
      self._setUp()
    File "neutron/tests/common/net_helpers.py", line 571, in _setUp
      self.ip_wrapper = ip.ensure_namespace(self.name)
    File "neutron/agent/linux/ip_lib.py", line 224, in ensure_namespace
      if not self.netns.exists(name):
    File "neutron/agent/linux/ip_lib.py", line 778, in exists
      return network_namespace_exists(name)
    File "neutron/agent/linux/ip_lib.py", line 982, in network_namespace_exists
      output = list_network_namespaces(**kwargs)
    File "neutron/agent/linux/ip_lib.py", line 971, in list_network_namespaces
      return privileged.list_netns(**kwargs)
    File "/opt/stack/new/neutron/.tox/dsvm-functional/local/lib/python2.7/site-packages/oslo_privsep/priv_context.py", line 214, in _wrap
      return self.channel.remote_call(name, args, kwargs)
    File "/opt/stack/new/neutron/.tox/dsvm-functional/local/lib/python2.7/site-packages/oslo_privsep/daemon.py", line 194, in remote_call
      result = self.send_recv((Message.CALL.value, name, args, kwargs))
    File "/opt/stack/new/neutron/.tox/dsvm-functional/local/lib/python2.7/site-packages/oslo_privsep/comm.py", line 163, in send_recv
      self.writer.send((myid, msg))
    File "/opt/stack/new/neutron/.tox/dsvm-functional/local/lib/python2.7/site-packages/oslo_privsep/comm.py", line 55, in send
      self.writesock.sendall(buf)
    File "/opt/stack/new/neutron/.tox/dsvm-functional/local/lib/python2.7/site-packages/eventlet/greenio/base.py", line 401, in sendall
      tail = self.send(data, flags)
    File "/opt/stack/new/neutron/.tox/dsvm-functional/local/lib/python2.7/site-packages/eventlet/greenio/base.py", line 395, in send
      return self._send_loop(self.fd.send, data, flags)
    File "/opt/stack/new/neutron/.tox/dsvm-functional/local/lib/python2.7/site-packages/eventlet/greenio/base.py", line 382, in _send_loop
      return send_method(data, *args)
  socket.error: [Errno 32] Broken pipe

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