pypy py.test loop on fail syscall failure

gistfile1.pytb

_ ERROR at teardown of TestMessageExportResource.test_disconnect_kills_server __
Traceback (most recent call last):
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/trial/_asynctest.py", line 209, in _cleanUp
    clean = util._Janitor(self, result).postCaseCleanup()
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/trial/util.py", line 98, in postCaseCleanup
    calls = self._cleanPending()
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/utils.py", line 218, in warningSuppressingWrapper
    return runWithWarningsSuppressed(suppressedWarnings, f, *a, **kw)
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/utils.py", line 201, in runWithWarningsSuppressed
    reraise(exc_info[1], exc_info[2])
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/utils.py", line 197, in runWithWarningsSuppressed
    result = f(*a, **kw)
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/trial/util.py", line 139, in _cleanPending
    reactor.iterate(0)
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/trial/_asynctest.py", line 242, in _
    return self._reactorMethods[name](*a, **kw)
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/base.py", line 632, in iterate
    self.doIteration(delay)
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/epollreactor.py", line 379, in doPoll
    l = self._poller.poll(timeout, len(self._selectables))
IOError: [Errno 22] Invalid argument
----------------------------- Captured stderr call -----------------------------
Unhandled Error
Traceback (most recent call last):
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/application/service.py", line 280, in startService
    service.startService()
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/application/internet.py", line 368, in startService
    self.privilegedStartService()
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/application/internet.py", line 349, in privilegedStartService
    self._waitingForPort = self.endpoint.listen(self.factory)
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/endpoints.py", line 470, in listen
    interface=self._interface)
--- <exception caught here> ---
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/defer.py", line 121, in execute
    result = callable(*args, **kw)
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/posixbase.py", line 492, in listenTCP
    p.startListening()
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/tcp.py", line 1008, in startListening
    self.startReading()
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/abstract.py", line 434, in startReading
    self.reactor.addReader(self)
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/epollreactor.py", line 271, in addReader
    EPOLLIN, EPOLLOUT)
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/epollreactor.py", line 257, in _add
    self._poller.register(fd, flags)
exceptions.IOError: [Errno 22] Invalid argument

Unhandled Error
Traceback (most recent call last):
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/base.py", line 417, in fireEvent
    DeferredList(beforeResults).addCallback(self._continueFiring)
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/defer.py", line 317, in addCallback
    callbackKeywords=kw)
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/defer.py", line 306, in addCallbacks
    self._runCallbacks()
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/defer.py", line 588, in _runCallbacks
    current.result = callback(current.result, *args, **kw)
--- <exception caught here> ---
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/base.py", line 430, in _continueFiring
    callable(*args, **kwargs)
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/base.py", line 1189, in _reallyStartRunning
    self._handleSignals()
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/posixbase.py", line 302, in _handleSignals
    self.addReader(self._childWaker)
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/epollreactor.py", line 271, in addReader
    EPOLLIN, EPOLLOUT)
  File "/home/vagrant/Envs/vumi-msg-store-pypy/site-packages/twisted/internet/epollreactor.py", line 257, in _add
    self._poller.register(fd, flags)
exceptions.IOError: [Errno 22] Invalid argument