celery worker parent process: python backtrace

celery-parent-py-bt.text

#4 Frame 0x67d6ea0, for file /path/to/venv/local/lib/python2.7/site-packages/kombu/utils/eventio.py, line 93, in _poll (self=<_epoll(_epoll=<select.epoll at remote 0x5dd0598>) at remote 0x617d060>, timeout=<float at remote 0x6838650>)
    return self._epoll.poll(timeout if timeout is not None else -1)
#8 Frame 0x67d6c80, for file /path/to/venv/local/lib/python2.7/site-packages/kombu/utils/eventio.py, line 65, in poll (self=<_epoll(_epoll=<select.epoll at remote 0x5dd0598>) at remote 0x617d060>, timeout=<float at remote 0x6838650>)
    return self._poll(timeout)
#12 Frame 0x67cff60, for file /path/to/venv/local/lib/python2.7/site-packages/kombu/async/hub.py, line 278, in create_loop (self=<Hub(consolidate=set([]), _register_fd=<instancemethod at remote 0x5d4a760>, _running=False, readers={35: (<function at remote 0x67ab108>, (35,)), 39: (<function at remote 0x67ab108>, (39,)), 8: (<function at remote 0x67ab108>, (8,)), 41: (<instancemethod at remote 0x67ac960>, (<...>, 41)), 42: (<instancemethod at remote 0x67acae0>, (<...>, 42)), 43: (<instancemethod at remote 0x67acb60>, (<...>, 43)), 44: (<instancemethod at remote 0x67acbe0>, (<...>, 44)), 45: (<instancemethod at remote 0x67acc60>, (<...>, 45)), 46: (<instancemethod at remote 0x67acce0>, (<...>, 46)), 47: (<instancemethod at remote 0x67acd60>, (<...>, 47)), 48: (<instancemethod at remote 0x67acde0>, (<...>, 48)), 49: (<instancemethod at remote 0x61ba060>, (<Connection(frame_max=131072, method_queue=[], _method_override={(60, 50): <instancemethod at remote 0x61ed5e0>}, channels={0: <...>, 1: <Channel(no_ack_cons...(truncated)