lsof: no pwd entry for UID 122, what does that mean

[darkside40]

Morning,

i tried to hunt down an issue where one of my disk does not get spin down correctly by unraid.

When i tried to see if any files are opened on the disk with the command lsof | grep /mnt/disk5 i only get this failure: lsof: no pwd entry for UID 122

 

Does anybody know what that means? I know that command worked without any problems on 6.3.5, now i am on 6.4.1 of unRaid.