mailman_err_overview

RHEL5.5, mailman-2.1.9-4.el5 installed. Mailman was running, but messages sent were not being added to the list.  Tried to restart mailman "service mailman restart", but it hung.  Let it run a while before killing. Trying to start it, and it hangs.
Have checked permissions, mm_cfg.py, no /var/lock/subsys/mailman.
No output when tried to start using ./mailmanctl start either.
This is a server transfer, but only hostname has changed.
mailman.host.com to simply host.com
changed DEFAULT_URL_HOST and DEFAULT_EMAIL_HOST to host.com
ran the ./withlist command on all lists to change the URL to host.com
 The old host was also RHEL5.5, mailman-2.1.9-4.el5.
check_perms returns no problems found.
managed to uninstall with rpm -e --noscripts mailman
reinstalled with yum
still hangs.
enabled /bin/bash on mailman user
sudo su mailman
ran mailmanctl -s start
and it starts.

So..why won't mailman start as root, including as a service?

Added debug print statements to mailmanctl, this is the results.


openge entered check_privs
openge gid is:
41
openge uid is:
41
openge myuid is:
0
openge check_privs - entered myuid == 0
...hangs on the line
groups = [x[2] for x in grp.getgrall() if mm_cfg.MAILMAN_USER in x[3]]

def check_privs():
    print "openge entered check_privs"
    # If we're running as root (uid == 0), coerce the uid and gid to that
    # which Mailman was configured for, and refuse to run if we didn't coerce
    # the uid/gid.
    gid = grp.getgrnam(mm_cfg.MAILMAN_GROUP)[2]
    print "openge gid is: "
    print gid
    uid = pwd.getpwnam(mm_cfg.MAILMAN_USER)[2]
    print "openge uid is: "
    print uid
    myuid = os.getuid()
    print "openge myuid is: "
    print myuid
    if myuid == 0:
        print "openge check_privs - entered myuid == 0"
        # Set the process's supplimental groups.
        groups = [x[2] for x in grp.getgrall() if mm_cfg.MAILMAN_USER in x[3]]
        print "openge groups is: "
        print groups
        groups.append(gid)
        try:
            print "openge trying os.setgroups"
            os.setgroups(groups)
        except AttributeError:
            print "openge unable to setgroups"
            # Python 2.1 doesn't have setgroups
            syslog('error', 'Warning: unable to setgroups(%s)' % groups)
        os.setgid(gid)
        os.setuid(uid)
    elif myuid <> uid:
        name = mm_cfg.MAILMAN_USER
        usage(1, _(
            'Run this program as root or as the %(name)s user, or use -u.'))
    print "openge exiting check_privs"