Key-enabling kernel extensions for the IBM AIX Version 6.1 operating system

[elsiddik]

Memory overlays and addressing errors are difficult problems to
diagnose and service. Growing software size and complexity further
complicate the situation. Many software components in the AIX®
operating system share the kernel address space.

POWER6™ processors and AIX Version 6.1 now have storage protection
keys which the kernel extensions and device drivers can use to improve
the reliability and serviceability of the system.
In this article, learn about the new storage protection mechanism, and
how to take advantage of storage protection keys to improve the
Reliability, Availability, and Serviceability (RAS) characteristics of
an existing device driver or kernel extension

http://www.ibm.com/developerworks/aix/library/au-keykernext/

zaher el siddik
http://www.unixshells.nl/
http://elsiddik.blogspot.com/