> Linus Torvalds wrote:
> >
> > These days, the vma's just have too much information, and the
> > page tables
> > can't be counted on to have enough bits.
> >
>
> Note that it isn't very hard to deal with *that* problem, *if you want
> to*... you just need to maintain a shadow data structure in the same
> format as the page tables and stuff your software bits in there.
This technique is already used on ARM.
Nicolas
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