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From: Robert Dewar <robert_dewar@my-deja.com>
Subject: Re: Y21C Bug
Date: 2000/01/07
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In article <wcciu157w2h.fsf@world.std.com>,
  Robert A Duff <bobduff@world.std.com> wrote:
> Florian Weimer <usenet@deneb.cygnus.argh.org> writes:
> I thought "commit on use" (or "zero on use") meant that (as in
your
> example below), virtual memory is allocated, but physical
memory is not.
> Then, a read or write of that memory will trap, and the
operating system
> will gin up an all-zeros page of memory.
>
> Still nobody has answered my question about which operating
systems
> support these fancy things.

NT, OS/2, Solaris, IRIX for sure. I sort of assume that the
other major unices are the same ...


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