Sorry for leaving out specifics.
$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.3 (Santiago)
$ sssd -version
The problem is that, during boot, udev is not correctly executing a rule to set user/group
ownership, where the target user and group are maintained (exclusively) in LDAP. If,
after boot, I re-execute start_udev, all works as expected.