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SubjectRe: x86 question: Can a process have > 3GB memory?
On Wed, 8 May 2002, Martin J. Bligh wrote:

> >> Hey Cliff, we are planning to implement virtwin() if you remember that
> >> from PTX. AWE on NT was derived from the same work. There should soon
> >> be some discussion about it on or I can
> >> give you some more data...
> >
> > Please implement it in userspace, using large POSIX shared memory
> > segments and mmaping / munmapping them as needed.
> How are you going to change the user page tables from userspace?
> This mechanism would seem to need kernel support however you did it.

mmap(2) and munmap(2)

Bravely reimplemented by the knights who say "NIH".

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