We're getting numerous entries in /var/log/messages that read "kernel: Couldn't get FDN from LUM for uid, rc=" where rc= is the UID of a seemingly non-existent user. Going by getent password |grep the UID, there is never anything returned. I'm assuming these are users that have been deleted since there is typically a valid UID in the same vicinity (UID +/- 1 or 2).

Would it make sense that the error is a result of a deleted user, and if so (or not), is this a concern, and is there some way to make it stop?

Thank you.