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SubjectRe: Please don't beat me up (was Re: Bugs and wishes in memory management area)
Date

In linux.dev.kernel, article <Pine.LNX.3.95.961127213022.10159C-100000@pc5829.hil.siemens.at>,
Ingo Molnar <mingo@pc5829.hil.siemens.at> writes:
>
> with double indirection pointers we could implement some kind of garbage
> collector kernel thread(s). Kernel code has to 'get' and 'put' such
> resources, to avoid reentrancy problems.
>
Why would you need garbage collection and double indirection? That's even
worse for performance than using virtual memory to remap disjoint pages into
larger continuous ranges.

Moving memory around is, IMHO, out of the question. (What do you want to do
-- move user pages? What about SMP?) And if you don't move memory, you
don't need any double indirection.

--
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-- Buckminster Fuller
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