When rebooting the server I start my array first, then manually start Docker. After my array has started and I start up Docker I get the error "Docker service failed to start". I check the system log and I get a bunch these errors:
emhttpd: error: malloc_share_locations, 8160: Operation not supported (95): getxattr: /mnt/user/appdata

I attempt to stop my array but it is unable to be stopped because /mnt/user is in use eventhough I dont see any processes. I have to force restart my server causing parity check to run each time. After another reboot of the server I am able to start Docker without issue but I constantly have to run a parity check.

I have attached diagnostics log.

capsulecorp-diagnostics-20250915-1412.zip

Edited September 16, 2025Sep 16 by Android_18

Here is diagnostic log after forcing reboot and getting Docker to successfully start up.

capsulecorp-diagnostics-20250915-1446.zip

10 hours ago, Android_18 said:

emhttpd: error: malloc_share_locations, 8160: Operation not supported (95): getxattr: /mnt/user/appdata

This suggests something is creating that mountpoint before Unraid, and that cannot happen; /mnt/user is reserved.

1 hour ago, JorgeB said:

This suggests something is creating that mountpoint before Unraid, and that cannot happen; /mnt/user is reserved.

Is there a way I can look into it more and see what might be causing this issue?

Most often it's a script, try booting in safe mode to rule out plugins, like the user script plugin, also disable the Docker service if it still happens.

3 hours ago, JorgeB said:

Most often it's a script, try booting in safe mode to rule out plugins, like the user script plugin, also disable the Docker service if it still happens.

Whenever I need to restart unraid I always turn off docker and I have the array set to not auto start on reboot. Whenever I reboot I wait a few minutes then start array then wait a few more minutes and start docker and that’s when I see the docker service fails to start.

Try that but in safe mode, to rule out a plugin issue.