Traceback (most recent call last):
  File "/root/overviewer/overviewer.py", line 440, in <module>
    main()
  File "/root/overviewer/overviewer.py", line 351, in main
    r.go(options.procs)
  File "/root/overviewer/overviewer_core/rendernode.py", line 158, in go
    pool = multiprocessing.Pool(processes=procs,initializer=pool_initializer,initargs=(self,))
  File "/usr/lib/python2.7/multiprocessing/__init__.py", line 229, in Pool
    return Pool(processes, initializer, initargs, maxtasksperchild)
  File "/usr/lib/python2.7/multiprocessing/pool.py", line 115, in __init__
    self._setup_queues()
  File "/usr/lib/python2.7/multiprocessing/pool.py", line 208, in _setup_queues
    self._inqueue = SimpleQueue()
  File "/usr/lib/python2.7/multiprocessing/queues.py", line 354, in __init__
    self._rlock = Lock()
  File "/usr/lib/python2.7/multiprocessing/synchronize.py", line 147, in __init__
    SemLock.__init__(self, SEMAPHORE, 1, 1)
  File "/usr/lib/python2.7/multiprocessing/synchronize.py", line 75, in __init__
    sl = self._semlock = _multiprocessing.SemLock(kind, value, maxvalue)
OSError: [Errno 38] Function not implemented