MRG-RT plans to rebase the kernel to a 3.4 or maybe a 3.6 kernel.
We have chosen a 3.6 kernel - currently kernel-rt-3.6.10-rt22.7.el6rt.
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/RHSA-2013-0566.html