core: System Monitor Integration Fails to Start

The problem

After loading HAOS 11.3 the SystemMonitor Integration Throws an error

2024-01-05 04:11:43.963 ERROR (MainThread) [homeassistant.components.sensor] Error while setting up systemmonitor platform for sensor
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 360, in _async_setup_platform
    await asyncio.shield(task)
  File "/usr/src/homeassistant/homeassistant/components/systemmonitor/sensor.py", line 393, in async_setup_entry
    disk_arguments = await hass.async_add_executor_job(get_all_disk_mounts)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/concurrent/futures/thread.py", line 58, in run
    result = self.fn(*self.args, **self.kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/systemmonitor/util.py", line 22, in get_all_disk_mounts
    usage = psutil.disk_usage(part.mountpoint)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/psutil/__init__.py", line 2012, in disk_usage
    return _psplatform.disk_usage(path)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/psutil/_psposix.py", line 177, in disk_usage
    st = os.statvfs(path)
         ^^^^^^^^^^^^^^^^
BlockingIOError: [Errno 11] Resource temporarily unavailable: '/media/Music'

What version of Home Assistant Core has the issue?

2024.1.0

What was the last working version of Home Assistant Core?

2024.1.0

What type of installation are you running?

Home Assistant OS

Integration causing the issue

SystemMonitor

Link to integration documentation on our website

https://www.home-assistant.io/integrations/systemmonitor

Diagnostics information

No response

Example YAML snippet

No response

Anything in the logs that might be useful for us?

2024-01-05 04:11:43.963 ERROR (MainThread) [homeassistant.components.sensor] Error while setting up systemmonitor platform for sensor
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 360, in _async_setup_platform
    await asyncio.shield(task)
  File "/usr/src/homeassistant/homeassistant/components/systemmonitor/sensor.py", line 393, in async_setup_entry
    disk_arguments = await hass.async_add_executor_job(get_all_disk_mounts)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/concurrent/futures/thread.py", line 58, in run
    result = self.fn(*self.args, **self.kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/systemmonitor/util.py", line 22, in get_all_disk_mounts
    usage = psutil.disk_usage(part.mountpoint)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/psutil/__init__.py", line 2012, in disk_usage
    return _psplatform.disk_usage(path)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/psutil/_psposix.py", line 177, in disk_usage
    st = os.statvfs(path)
         ^^^^^^^^^^^^^^^^
BlockingIOError: [Errno 11] Resource temporarily unavailable: '/media/Music'

Additional information

The /media/Music Mounted CIFS volume does work when I go to Media / myMedia / Music folder … I see the sub folders and files from the UI and I am able to play music in the Browser

it was working prior to the HAOS 11.3 update

I tried to remove and re add the system Monitor Integration and that fails the same way

I can access the File Share from other devices with no problem

I do not see diagnostic data available for systemmonitor.