Re: 2.4 MM overview?

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Sun Oct 15 2000 - 15:45:11 EST


> You mean like the way the Alpha has a PTE bit that says 'this page is
> valid at the same address in every process', and the address space
> number (ASN) that can be used to 'uniquefy' cache entries for the
> same virtual addresses in different processes?

Exactly

> Well, we ain't got these luxuries/complications in VAXland... Hell,
> we don't even have two-level page tables :-(

Really. Ugh. I always assumed Vax had at least two levels because mmap on
4.2 BSD used to panic on 128K+ blocks. I guess there was a different reason
for that then

Alan

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