Re: x86 question: Can a process have > 3GB memory?

From: Alan Cox (
Date: Tue May 07 2002 - 18:33:14 EST

> We'd like to go > 3GB of memory per process.
> Is this possible on a 32-bit machine? I have been reading the various

Yes and no...

> Any pointers would be appreciated. The Intel ESMA (Extended Server Memory
> Arch) page states that it's possible,

Remember DOS and EMM memory expansion. Basically that is what you come
down to. Allocate multiple large shared memory segments, attach the one
you need each time and implement software segment swapping.

That should have you diving for an AMD hammer or IA64 box as soon as they
come out 8)
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