The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

2.1 Fixed Issues

The following major issues are fixed in this update:

Kernel Panic with Emulex LPe16XXX and Sun Storage FCoE Adapters

A kernel panic could occur at boot time if an Emulex LPe16XXX FCoE adapter or a Sun Storage version of such an adapter was installed and the lpfc driver was not updated to version 0:8.3.7.10.4p or later. The version of the lpfc driver provided in this update corrects the issue.

X Window System Does Not Run in a PVHVM Guest

If you installed an Oracle Linux 6 Update 5 (x86-64) PVHVM guest with either the Desktop or the Software Development Workstation installation options, the X Window System was not accessible after installation when you booted the guest into run level 5. This problem was seen in OVM 3.0 and later. The workaround was to boot the guest into run level 3 and uninstall the xorg-x11-drv-cirrus package before switching to run level 5.

The issue is fixed in xorg-x11-drv-cirrus-1.5.2-1.el6_4.x86_64.rpm or later versions of this package. (Bug ID 16280196)