*** Bug 1199082 has been marked as a duplicate of this bug. ***
This should be just a precaution unless there is bigger kernel rebase in 7.1 we shouldn't hit this. Kernel change that caused the issue will probably land in 7.2.
Checked: openstack-packstack-2014.2-0.17.dev1462.gbb05296.el7ost.noarch RHEL7.1 3.10.0-229.el7.x86_64
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. https://rhn.redhat.com/errata/RHSA-2015-0789.html