kernel: swapper/0: page allocation failure
I am running: CentOS 5.5 Profile (Latest 3.5 (3.5.2-linode45)) … I did some searching and saw some people had a similar issue a while back but supposedly upgrading the Kernal fixed it :/
OSSEC HIDS Notification. 2012 Sep 30 09:35:11 Received From: cathode->/var/log/messages Rule: 1002 fired (level 2) -> "Unknown problem somewhere in the system." Portion of the log(s): Sep 30 09:35:11 cathode kernel: swapper/0: page allocation failure: order:4, mode:0x20 --END OF NOTIFICATION
Hope this helps.