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This bug has been copied from bug #1230391 and has been proposed
to be backported to 7.1 z-stream (EUS).

fixed in kernel-rt-3.10.0-229.8.1.rt56.141.8.el7_1

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-2015-1565.html