Have you checked our OS patch recommendations?
By Mike Dietrich-Oracle on Aug 28, 2009
But nevertheless based on our support and field experience Oracle Support recommends several OS patches and parameter settings. Check these Metalink Notes prior to upgrading your database release - and check them every once in a while:
- Note:169706.1 - Oracle® Database on Unix AIX®,HP-UX®,Linux®,Mac OS® X,Solaris®,Tru64 Unix
- Note:401705.1 - Linux x86, x86-64, and s390x Requirements Reference List
Don't forget to patch your OS as well :-)