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SubjectRe: [OT] Wrapping memory.
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> I would like to have a 64 KBarray (of char), that's trivial, however what
> I would like is for the last 4 KB [yes thankfully this is exactly one
> page... (assume i386)] to reference the same physical memory as the first
> four.

Yep you can do that.

> Is this at all possible? If so, how would I do this in user space (and
> could it be done without root priv?)?

mmap will do what you need. Create a 60K object on disk and mmap it
at the base address and then 60K further on for 4K.

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