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dtgreene: Actually, the main use of one of the other levels I am aware of is Xen, one of the older x86 virtualization systems, when running in its paravirtualization mode; it allows for near full speed virtualization on computers that do not support hardware virtualization; the Xen kernel runs in ring 0, Linux (or another kernel that's been ported to Xen) runs in ring 1, and userspace runs in (as usual) ring 3.
Sounds interesting :) Xen...

The original design for the 4 levels was purely security and kernel/OS protection. Drivers can't crash the kernel, the programs can't crash the drivers, etc. If something crashes then it's localized. However with the blue screen of death, we see often how a messup either with the OS or drivers which can bring the whole system down. And with Video drivers being pushed weekly with updates, one of the updates by NVidia brought down a lot of computers. At worst it should have shut down the drivers, restarted them, if they crashed again boot up generic reserved VGA drivers.

Actually I'm reminded of using experimental drivers to use a wireless ethernet controller, and when the USB device got unplugged with the laptop, the entire system crashed. This was using linux of course :P

But yes, 3 levels does sound optimal, it's just rarely used.
Wow, epic fail. Thanks for sharing this article, I've added Capcom to my "dead to me" list of companies doing stupid fucking shit to consumers.
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skeletonbow: I've added Capcom to my "dead to me" list of companies doing stupid fucking shit to consumers.
Wait, you mean you were still with them after the DLC written in the game codes and the legacy of "rebalancing" their games, forcing you to buy the newest edition unless you wanted to play with inferior and/or broken characters?
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zeogold: Wait, you mean you were still with them after the DLC written in the game codes and the legacy of "rebalancing" their games, forcing you to buy the newest edition unless you wanted to play with inferior and/or broken characters?
To be honest, I am not certain if I even own a single Capcom game. But if that is their vision of what being consumer friendly is then they won't ever get my money. My late uncle had a "cookie list", and if you were a good kid you were on the list. I have a similar concept with game companies. :)
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skeletonbow: My late uncle had a "cookie list", and if you were a good kid you were on the list. I have a similar concept with game companies. :)
How entirely juvenile of a concept.
...
...can I get a cookie?