Yep, it was broken a few times but fixed with microcode patches (afaik). It's still a part of the server processors and in wide use already. I'm not saying it's

Yep, it was broken a few times but fixed with microcode patches (afaik). It's still a part of the server processors and in wide use already. I'm not saying it's a golden bullet or otherwise infallable, but it sure beats cat /dev/mem by quite some way.