Inundated with "Failed to check for alert Smartd" errors.

[ctag]

Over the past few days I've been getting this alert sporadically, and then today the flood gates opened and over 70 emails have poured in. I tried running `systemctl restart smartd` but that didn't seem to help.

I'd appreciate any assistance troubleshooting!

Code:

Failed to check for alert Smartd:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/middlewared/plugins/alert.py", line 808, in __run_source
    alerts = (await alert_source.check()) or []
              ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/alert/base.py", line 335, in check
    return await self.middleware.run_in_thread(self.check_sync)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/main.py", line 1254, in run_in_thread
    return await self.run_in_executor(self.thread_pool_executor, method, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/main.py", line 1251, in run_in_executor
    return await loop.run_in_executor(pool, functools.partial(method, *args, **kwargs))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/concurrent/futures/thread.py", line 58, in run
    result = self.fn(*self.args, **self.kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/alert/source/smartd.py", line 22, in check_sync
    if not self.middleware.call_sync("service.started", "smartd"):
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/main.py", line 1421, in call_sync
    return self.run_coroutine(methodobj(*prepared_call.args))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/main.py", line 1461, in run_coroutine
    return fut.result()
           ^^^^^^^^^^^^
  File "/usr/lib/python3.11/concurrent/futures/_base.py", line 449, in result
    return self.__get_result()
           ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/concurrent/futures/_base.py", line 401, in __get_result
    raise self._exception
  File "/usr/lib/python3/dist-packages/middlewared/schema/processor.py", line 177, in nf
    return await func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/schema/processor.py", line 44, in nf
    res = await f(*args, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/plugins/service.py", line 201, in started
    state = await service_object.get_state()
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/plugins/service_/services/base.py", line 37, in get_state
    return await self.middleware.run_in_thread(self._get_state_sync)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/main.py", line 1254, in run_in_thread
    return await self.run_in_executor(self.thread_pool_executor, method, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/main.py", line 1251, in run_in_executor
    return await loop.run_in_executor(pool, functools.partial(method, *args, **kwargs))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/concurrent/futures/thread.py", line 58, in run
    result = self.fn(*self.args, **self.kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/plugins/service_/services/base.py", line 40, in _get_state_sync
    unit = self._get_systemd_unit()
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/middlewared/plugins/service_/services/base.py", line 68, in _get_systemd_unit
    unit.load()
  File "/usr/lib/python3/dist-packages/pystemd/base.py", line 90, in load
    unit_xml = self.get_introspect_xml()
               ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/pystemd/base.py", line 75, in get_introspect_xml
    bus.call_method(
  File "pystemd/dbuslib.pyx", line 446, in pystemd.dbuslib.DBus.call_method
pystemd.dbusexc.DBusTimeoutError: [err -110]: b'Connection timed out'

 

[ctag]

Disabling SMART from the web UI stemmed the inflow of errors.. But now SMART isn't running..