Backup mount as default backup location causes partial system failure

[TomK]

Describe the issue you are experiencing

i've been having periodic crashes since the last supervisor update. i've narrowed it down to a NAS mount.

I have four mounts on my WD MyCloud Home Duo:

default_backup_mount: null
mounts:
- name: frigate
  read_only: false
  server: 192.168.0.25
  share: localuser/frigate
  state: active
  type: cifs
  usage: media
  version: null
- name: ha_backup
  read_only: false
  server: 192.168.0.25
  share: localuser/ha-backup
  state: active
  type: cifs
  usage: backup
  version: null
- name: plex
  read_only: false
  server: 192.168.0.25
  share: localuser/Plex
  state: active
  type: cifs
  usage: share
  version: null
- name: doubletake
  read_only: false
  server: 192.168.0.25
  share: localuser/double-take
  state: active
  type: cifs
  usage: media
  version: null

i removed all of them and re-added the one named ha_backup, within few moments and the system becomes partly unresponsive. I say partly, because some ui elements load, but many pages timeout, and eventually report: "Unable to load the panel source: /api/hassio/app/entrypoint.js" On the storage page, i've also received the error: "Network storage is not supported on this host"

I have reinstated the other mounts, frigate, plex and doubletake, and the system remains stable. So for now, i am simply backing up onto my primary disk.

I'd like to note, this setup was working fine until the recent supervisor update.

What type of installation are you running?

Home Assistant OS

Which operating system are you running on?

Home Assistant Operating System

Steps to reproduce the issue

1. create a backup share (cifs)
2. set share as default backup location
3. wait for system to behave unusually ...

Anything in the Supervisor logs that might be useful for us?

I run a pretty basic setup, initially installed using https://www.home-assistant.io/installation/generic-x86-64 on an Lenovo ThinkCentre M710q Tiny

System Health information

System Information

version	core-2024.4.3
installation_type	Home Assistant OS
dev	false
hassio	true
docker	true
user	root
virtualenv	false
python_version	3.12.2
os_name	Linux
os_version	6.6.25-haos
arch	x86_64
timezone	Europe/London
config_dir	/config

Home Assistant Community Store

GitHub API	ok
GitHub Content	ok
GitHub Web	ok
GitHub API Calls Remaining	5000
Installed Version	1.34.0
Stage	running
Available Repositories	1399
Downloaded Repositories	11

Home Assistant Cloud

logged_in	true
subscription_expiration	13 May 2024 at 01:00
relayer_connected	true
relayer_region	eu-central-1
remote_enabled	false
remote_connected	false
alexa_enabled	false
google_enabled	true
remote_server	eu-central-1-10.ui.nabu.casa
certificate_status	ready
instance_id	5e00b2e260ae4f1194818e5fbe562683
can_reach_cert_server	ok
can_reach_cloud_auth	ok
can_reach_cloud	ok

Home Assistant Supervisor

host_os	Home Assistant OS 12.2
update_channel	beta
supervisor_version	supervisor-2024.04.2
agent_version	1.6.0
docker_version	25.0.5
disk_total	109.3 GB
disk_used	52.5 GB
healthy	true
supported	true
board	generic-x86-64
supervisor_api	ok
version_api	ok
installed_addons	Home Assistant Google Drive Backup (0.112.1), Studio Code Server (5.15.0), NGINX Home Assistant SSL proxy (3.9.0), Node-RED (17.0.12), Advanced SSH & Web Terminal (17.2.0), Mosquitto broker (6.4.0), ESPHome (2024.4.0), Google Cloud DNS (1.0.2), chrony (3.0.1), Exadel CompreFace (1.1.0), Transmission (dev), Matter Server (5.5.1), Whisper (2.0.0), Piper (1.5.0), Asterisk (4.2.0), Plex Media Server (3.5.0), Silicon Labs Multiprotocol (2.4.5), openWakeWord (1.10.0), PS5 MQTT (1.3.3), AdGuard Home (5.0.6), Frigate (0.13.2), CodeProject AI.Server (CPU) (2.5.1), Double Take (1.13.11.8)

Dashboards

dashboards	2
resources	3
views	7
mode	storage

Recorder

oldest_recorder_run	11 April 2024 at 08:42
current_recorder_run	21 April 2024 at 04:12
estimated_db_size	550.19 MiB
database_engine	sqlite
database_version	3.44.2

Supervisor diagnostics

No response

Additional information

No response