On Sun, 6 May 2001, Chris Wedgwood wrote:
> On Sat, May 05, 2001 at 11:19:09PM -0300, Rik van Riel wrote:
>
> This only leaves two issues, the first is device drivers and the
> second is the question whether we'd want the overhead needed to
> implement the (fairly easy) memory relocation.
>
> How do you relocate
>
> -- pages which are mlocked without violating RT contraints?
Fuck RT constraints. Linux doesn't have infinitely small
scheduling latencies, it's easy to copy a page without
increasing the scheduling latencies much.
> -- pages which contain kernel pointers and might be accessed from
> interrupt context?
Block interrupts while copying a kernel page?
Remember that this is an emergency situation, so it's ok
to use "big hammer" solutions.
regards,
Rik
-- Virtual memory is like a game you can't win; However, without VM there's truly nothing to lose...http://www.surriel.com/ http://distro.conectiva.com/
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This archive was generated by hypermail 2b29 : Sat May 05 2001 - 22:35:04 EDT