In RHEL-5's samba3x the following patch is also needed: http://git.samba.org/?p=samba.git;a=commitdiff;h=aa8d91ae8e6b4b813c0479f09be9e090aff047a9
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2012-0156.html