Created attachment 111529 [details]
This is the patch from the samba BZ that reportedly solved the problem
Description of problem:
Samba mishandles plaintext passwords
Using samba 3.0.10 on RHEL 3 as server (using unencrypted passwords and PAM
auth) and a Win XP client machine. On initial attempt to connect, we've been
seeing PAM auth failures that I've traced back to the server seeing password =
username despite that not being the case on the wire (password is NULL as
windows appears to be trying NULL before promtping for a password).
NEEDINFO_ENG has been deprecated in favor of NEEDINFO or ASSIGNED. Changing
status to ASSIGNED for ENG review.