From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Tue,  6 Nov 2007 18:35:09 +0100
From: Philippe Anel <xigh@free.fr>
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To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] Memory management questions/not plan-9 specific
References: <11F071B3-1B01-4272-9EA4-1C2BD50BCC0B@telus.net>
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l4 (http://en.wikipedia.org/wiki/L4_microkernel_family) has such api ...=20
but it is only a kernel.

Paul Lalonde a =E9crit :
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> I have an application I'm building which requires OS support to allow=20
> a user-space function to fill a page on page-faults.  Ideally, I could=20
> reserve a chunk of address space but not back it with memory, and then=20
> on fault my handler would serve out data from some small cache of=20
> user-managed physical pages.
>
> My google-fu has been weak in finding such a system-level API in any=20
> OS.  Has this got a name I should be searching on?  I can't believe=20
> no-one has implemented user-level page replacement.
>
> Thanks,
>    Paul
>
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