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

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

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