The freezing system issue is I'm sure a bug in the applications exposing a fatal bug in the Catalyst driver.
Do you mean that it's always trivial to run AMD's own SDK-included samples on Linux?
(Thanks for that analysis arsenm.)
I'm using the SDK on my HD7950, and so far have had no bugs or crashes.
The tool support sucks, though. Why is KernelAnalyzer for Vista and Win7 only? I literally don't know anybody who uses those operating systems.