Re: Virtual address space exhaustion (was Discontigmem virt_to_page() )

From: Denis Vlasenko (
Date: Sat May 04 2002 - 19:49:23 EST

On 3 May 2002 20:35, Martin J. Bligh wrote:
> > No. It's not stupid. Unix defines a kind of operating system that
> > has certain characteristics and/or attributes. Process/kernel shared
> > address space is one of them. It's a name that has historical
> > signifigance.
> Yes it is stupid. This is a small implementation detail, and has no
> real importance whatsoever. People have done this in the past
> (Dynix/PTX did it) will do so in the future. Nor does the kernel
> address space have to be global and shared across all tasks
> as stated earlier in this thread. What makes it Unix is the interface
> it presents to the world, and how it behaves, not the little details
> of how it's implemented inside.

I'm curious where it is visible to userspace?
(I'm asking for educational purposes)

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