Gerrit precheck listener might not recover from error

May 19 10:30:55 coin-master coin[49114]: Task exception was never retrieved
May 19 10:30:55 coin-master coin[49114]: future: <Task finished name='Task-2' coro=<GerritMonitor.listen_gerrit_events() done, defined at /var/lib/coin/tqtc-coin-ci/src/gerrit_monitor.py:334> exception=ValueError('Separator is not found, and chunk exceed the limit')>
May 19 10:30:55 coin-master coin[49114]: Traceback (most recent call last):
May 19 10:30:55 coin-master coin[49114]:   File "/var/lib/coin/python-3.8.8/lib/python3.8/asyncio/streams.py", line 540, in readline
May 19 10:30:55 coin-master coin[49114]:     line = await self.readuntil(sep)
May 19 10:30:55 coin-master coin[49114]:   File "/var/lib/coin/python-3.8.8/lib/python3.8/asyncio/streams.py", line 618, in readuntil
May 19 10:30:55 coin-master coin[49114]:     raise exceptions.LimitOverrunError(
May 19 10:30:55 coin-master coin[49114]: asyncio.exceptions.LimitOverrunError: Separator is not found, and chunk exceed the limit
May 19 10:30:55 coin-master coin[49114]: During handling of the above exception, another exception occurred:
May 19 10:30:55 coin-master coin[49114]: Traceback (most recent call last):
May 19 10:30:55 coin-master coin[49114]:   File "/var/lib/coin/tqtc-coin-ci/src/gerrit_monitor.py", line 352, in listen_gerrit_events
May 19 10:30:55 coin-master coin[49114]:     event_string = await ssh.stdout.readline()
May 19 10:30:55 coin-master coin[49114]:   File "/var/lib/coin/python-3.8.8/lib/python3.8/asyncio/streams.py", line 549, in readline
May 19 10:30:55 coin-master coin[49114]:     raise ValueError(e.args[0])
May 19 10:30:55 coin-master coin[49114]: ValueError: Separator is not found, and chunk exceed the limit