Anyone knows what is this error related to after the last update 0.34.2?

 ERROR:homeassistant.core:Error doing job: Exception in callback _SelectorSslTransport._write_ready()
 Traceback (most recent call last):
 File "/usr/lib/python3.4/asyncio/events.py", line 120, in _run
 self._callback(*self._args)
 File "/usr/lib/python3.4/asyncio/selector_events.py", line 877, in _write_ready
 self._loop.remove_writer(self._sock_fd)
 File "/usr/lib/python3.4/asyncio/selector_events.py", line 243, in remove_writer
 self._selector.modify(fd, mask, (reader, None))
 File "/usr/lib/python3.4/selectors.py", line 250, in modify
 key = self.register(fileobj, events, data)
 File "/usr/lib/python3.4/selectors.py", line 399, in register
 self._epoll.register(key.fd, epoll_events)
 FileExistsError: [Errno 17] File exists
 INFO:homeassistant.components.switch:Setting up switch.zwave
 INFO:homeassistant.components.switch:Setting up switch.zwave
 ERROR:homeassistant.core:Error doing job: Future exception was never retrieved
 Traceback (most recent call last):
 File "/usr/lib/python3.4/concurrent/futures/thread.py", line 54, in run
 result = self.fn(*self.args, **self.kwargs)
 File "/srv/hass/hass_venv/lib/python3.4/site-packages/homeassistant/components/websocket_api.py", line 246, in _forward_event
 self.send_message(event_message(iden, event))
 File "/srv/hass/hass_venv/lib/python3.4/site-packages/homeassistant/components/websocket_api.py", line 221, in send_message
 self.wsock.send_json(message, dumps=JSON_DUMP)
 File "/home/hass/.homeassistant/deps/aiohttp/web_ws.py", line 169, in send_json
 self.send_str(dumps(data))
 File "/home/hass/.homeassistant/deps/aiohttp/web_ws.py", line 156, in send_str
 self._writer.send(data, binary=False)
 File "/home/hass/.homeassistant/deps/aiohttp/_ws_impl.py", line 354, in send
 self._send_frame(message, WSMsgType.TEXT)
 File "/home/hass/.homeassistant/deps/aiohttp/_ws_impl.py", line 333, in _send_frame
 self.writer.write(header + message)
 File "/usr/lib/python3.4/asyncio/selector_events.py", line 898, in write
 self._buffer.extend(data)
 BufferError: Existing exports of data: object cannot be re-sized
 INFO:homeassistant.components.switch:Setting up switch.zwave
 ERROR:homeassistant.core:Error doing job: Future exception was never retrieved
 Traceback (most recent call last):
 File "/usr/lib/python3.4/concurrent/futures/thread.py", line 54, in run
 result = self.fn(*self.args, **self.kwargs)
 File "/srv/hass/hass_venv/lib/python3.4/site-packages/homeassistant/components/websocket_api.py", line 246, in _forward_event
 self.send_message(event_message(iden, event))
 File "/srv/hass/hass_venv/lib/python3.4/site-packages/homeassistant/components/websocket_api.py", line 221, in send_message
 self.wsock.send_json(message, dumps=JSON_DUMP)
 File "/home/hass/.homeassistant/deps/aiohttp/web_ws.py", line 169, in send_json
 self.send_str(dumps(data))
 File "/home/hass/.homeassistant/deps/aiohttp/web_ws.py", line 156, in send_str
 self._writer.send(data, binary=False)
 File "/home/hass/.homeassistant/deps/aiohttp/_ws_impl.py", line 354, in send
 self._send_frame(message, WSMsgType.TEXT)
 File "/home/hass/.homeassistant/deps/aiohttp/_ws_impl.py", line 333, in _send_frame
 self.writer.write(header + message)
 File "/usr/lib/python3.4/asyncio/selector_events.py", line 898, in write
 self._buffer.extend(data)
 BufferError: Existing exports of data: object cannot be re-sized
 ERROR:homeassistant.core:Error doing job: Future exception was never retrieved
 Traceback (most recent call last):
 File "/usr/lib/python3.4/concurrent/futures/thread.py", line 54, in run
 result = self.fn(*self.args, **self.kwargs)
 File "/srv/hass/hass_venv/lib/python3.4/site-packages/homeassistant/components/websocket_api.py", line 246, in _forward_event
 self.send_message(event_message(iden, event))
 File "/srv/hass/hass_venv/lib/python3.4/site-packages/homeassistant/components/websocket_api.py", line 221, in send_message
 self.wsock.send_json(message, dumps=JSON_DUMP)
 File "/home/hass/.homeassistant/deps/aiohttp/web_ws.py", line 169, in send_json
 self.send_str(dumps(data))
 File "/home/hass/.homeassistant/deps/aiohttp/web_ws.py", line 156, in send_str
 self._writer.send(data, binary=False)
 File "/home/hass/.homeassistant/deps/aiohttp/_ws_impl.py", line 354, in send
 self._send_frame(message, WSMsgType.TEXT)
 File "/home/hass/.homeassistant/deps/aiohttp/_ws_impl.py", line 333, in _send_frame
 self.writer.write(header + message)
 File "/usr/lib/python3.4/asyncio/selector_events.py", line 898, in write
 self._buffer.extend(data)
 BufferError: Existing exports of data: object cannot be re-sized
 INFO:homeassistant.components.switch:Setting up switch.zwave
 INFO:homeassistant.components.switch:Setting up switch.zwave
 ERROR:homeassistant.core:Error doing job: Future exception was never retrieved
 Traceback (most recent call last):
 File "/usr/lib/python3.4/concurrent/futures/thread.py", line 54, in run
 result = self.fn(*self.args, **self.kwargs)
 File "/srv/hass/hass_venv/lib/python3.4/site-packages/homeassistant/components/websocket_api.py", line 246, in _forward_event
 self.send_message(event_message(iden, event))
 File "/srv/hass/hass_venv/lib/python3.4/site-packages/homeassistant/components/websocket_api.py", line 221, in send_message
 self.wsock.send_json(message, dumps=JSON_DUMP)
 File "/home/hass/.homeassistant/deps/aiohttp/web_ws.py", line 169, in send_json
 self.send_str(dumps(data))
 File "/home/hass/.homeassistant/deps/aiohttp/web_ws.py", line 156, in send_str
 self._writer.send(data, binary=False)
 File "/home/hass/.homeassistant/deps/aiohttp/_ws_impl.py", line 354, in send
 self._send_frame(message, WSMsgType.TEXT)
 File "/home/hass/.homeassistant/deps/aiohttp/_ws_impl.py", line 333, in _send_frame
 self.writer.write(header + message)
 File "/usr/lib/python3.4/asyncio/selector_events.py", line 898, in write
 self._buffer.extend(data)
 BufferError: Existing exports of data: object cannot be re-sized
 ERROR:homeassistant.core:Error doing job: Future exception was never retrieved
 Traceback (most recent call last):
 File "/usr/lib/python3.4/concurrent/futures/thread.py", line 54, in run
 result = self.fn(*self.args, **self.kwargs)
 File "/srv/hass/hass_venv/lib/python3.4/site-packages/homeassistant/components/websocket_api.py", line 246, in _forward_event
 self.send_message(event_message(iden, event))
 File "/srv/hass/hass_venv/lib/python3.4/site-packages/homeassistant/components/websocket_api.py", line 221, in send_message
 self.wsock.send_json(message, dumps=JSON_DUMP)
 File "/home/hass/.homeassistant/deps/aiohttp/web_ws.py", line 169, in send_json
 self.send_str(dumps(data))
 File "/home/hass/.homeassistant/deps/aiohttp/web_ws.py", line 156, in send_str
 self._writer.send(data, binary=False)
 File "/home/hass/.homeassistant/deps/aiohttp/_ws_impl.py", line 354, in send
 self._send_frame(message, WSMsgType.TEXT)
 File "/home/hass/.homeassistant/deps/aiohttp/_ws_impl.py", line 333, in _send_frame
 self.writer.write(header + message)
 File "/usr/lib/python3.4/asyncio/selector_events.py", line 898, in write
 self._buffer.extend(data)
 BufferError: Existing exports of data: object cannot be re-sized
 INFO:homeassistant.components.switch:Setting up switch.zwave
 ERROR:homeassistant.core:Error doing job: Future exception was never retrieved
 Traceback (most recent call last):
 File "/usr/lib/python3.4/concurrent/futures/thread.py", line 54, in run
 result = self.fn(*self.args, **self.kwargs)
 File "/srv/hass/hass_venv/lib/python3.4/site-packages/homeassistant/components/websocket_api.py", line 246, in _forward_event
 self.send_message(event_message(iden, event))
 File "/srv/hass/hass_venv/lib/python3.4/site-packages/homeassistant/components/websocket_api.py", line 221, in send_message
 self.wsock.send_json(message, dumps=JSON_DUMP)
 File "/home/hass/.homeassistant/deps/aiohttp/web_ws.py", line 169, in send_json
 self.send_str(dumps(data))
 File "/home/hass/.homeassistant/deps/aiohttp/web_ws.py", line 156, in send_str
 self._writer.send(data, binary=False)
 File "/home/hass/.homeassistant/deps/aiohttp/_ws_impl.py", line 354, in send
 self._send_frame(message, WSMsgType.TEXT)
 File "/home/hass/.homeassistant/deps/aiohttp/_ws_impl.py", line 333, in _send_frame
 self.writer.write(header + message)
 File "/usr/lib/python3.4/asyncio/selector_events.py", line 898, in write
 self._buffer.extend(data)
 BufferError: Existing exports of data: object cannot be re-sized
 INFO:homeassistant.components.switch:Setting up switch.zwave
 INFO:homeassistant.components.device_tracker.netgear:Scanning

Check those 2 issues on GitHub:

Thank you very much !!!