Unhandled exception when closing ssl connection with SIGINT

I use typical setup with

from autobahn.asyncio.component import Component, run

comp = Component(...)

run([comp])

where connection is over “wss://” protocol.

When hitting Ctrl+C (sending SIGINT) this is what happens:

^C2018-03-29T11:12:48 Shutting down due to SIGINT
2018-03-29T11:12:48 Fatal write error on socket transport
protocol: <asyncio.sslproto.SSLProtocol object at 0x7f14e1c62978>
transport: <_SelectorSocketTransport fd=6>
Traceback (most recent call last):
  File "/usr/lib64/python3.6/asyncio/selector_events.py", line 761, in write
    n = self._sock.send(data)
OSError: [Errno 9] Bad file descriptor

2018-03-29T11:12:48 Fatal error on SSL transport
protocol: <asyncio.sslproto.SSLProtocol object at 0x7f14e1c62978>
transport: <_SelectorSocketTransport closing fd=6>
Traceback (most recent call last):
  File "/usr/lib64/python3.6/asyncio/selector_events.py", line 761, in write
    n = self._sock.send(data)
OSError: [Errno 9] Bad file descriptor

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib64/python3.6/asyncio/sslproto.py", line 646, in _process_write_backlog
    self._transport.write(chunk)
  File "/usr/lib64/python3.6/asyncio/selector_events.py", line 765, in write
    self._fatal_error(exc, 'Fatal write error on socket transport')
  File "/usr/lib64/python3.6/asyncio/selector_events.py", line 645, in _fatal_error
    self._force_close(exc)
  File "/usr/lib64/python3.6/asyncio/selector_events.py", line 657, in _force_close
    self._loop.call_soon(self._call_connection_lost, exc)
  File "/usr/lib64/python3.6/asyncio/base_events.py", line 574, in call_soon
    self._check_closed()
  File "/usr/lib64/python3.6/asyncio/base_events.py", line 357, in _check_closed
    raise RuntimeError('Event loop is closed')
RuntimeError: Event loop is closed

[scravy]

Known issue in CPy: https://bugs.python.org/issue36709

[oberstet]

Thanks for the info! so yeah, it’s an upstream issue (filed 2 days after my comment, so we couldn’t know)