Bruce Martin <BruceM@cat.co.za> writes:

> How would you go about reserving this memory, specifying it's size, knowing its starting address, and organising the paging to
> disk?

man mmap.

For a full solution of large shared memory regions between multiple
processes, you may wish to see my mmap malloc library in nntpcache,
itself derived from a similar library used within gdb (mmalloc).

Julian.