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SubjectRe: Per-Processor Data Page

On Thu, 9 Dec 1999, Alan Cox wrote:

> Having access the the pid at a fixed address is as good as the %esp trick if
> not better. Unfortunately it means you now have to rewrite it each context
> switch or flush the TLB. Both of these suck. [...]

it's not even possible - think about threads on different processors
running at once. Which fixed address? Page tables are shared.

-- mingo

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