Re: [BUG] x86 kenel won't boot under Virtual PC



On Sun, 31 Aug 2008, Arjan van de Ven wrote:

it's probably even a security bug in that I don't see what would be
stopping a ring 3 user process from executing these instructions...

Well, it could be that Virtual PC raises a #UD exception in the virtual
machine. In user space, that would just cause the kernel to kill the poor
innocent victim. But when the kernel gets a #UD exception on what it
expects to be a nop, it just won't work.

Linus
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