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.

2.1.5 udevd Message

If a version of the udev package prior to udev-147-2.42.el6.arch.rpm is installed, a message similar to the following might be recorded in dmesg or /var/log/messages at boot time:

udevd (pid): /proc/pid/oom_adj is deprecated, please use /proc/pid/oom_score_adj instead.

To prevent the message from occurring, ensure that udev-147-2.42.el6.arch.rpm or later is installed. (Bug ID 13655071, 13712009)