I suggest Samba Official HOWTO to contain a separate section/heading called "Error messages" where every possible error message occuring in Samba sources would be listed and it's meaning exacltly explained.
updating qa contact
reassigning doc bug to John
Are you, or is someone else, willing to provide a such a list. I will gladly add this to the documentation. - John T.
Given how long it has been since this was posted I am closing this bug report.