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From: John Baldwin <jhb@freebsd.org>
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Date: Wed, 4 Nov 2009 08:12:18 -0500
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Cc: alc@freebsd.org, Ed Schouten <ed@80386.nl>,
	Alexander Best <alexbestms@math.uni-muenster.de>
Subject: Re: mmap(2) with MAP_ANON honouring offset although it shouldn't
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On Tuesday 03 November 2009 12:24:52 pm Ed Schouten wrote:
> Hi Alan,
> 
> * Alan Cox <alan.l.cox@gmail.com> wrote:
> > The standards for mmap(2) actually disallow values of "off" that are not a
> > multiple of the page size.
> > 
> > See http://www.opengroup.org/onlinepubs/000095399/functions/mmap.html for
> > the following:
> > <snip>
> 
> Just by accident I saw they changed that behaviour in a newer version of
> the spec:
> 
> 	http://www.opengroup.org/onlinepubs/9699919799/functions/mmap.html

Note that the spec doesn't cover MAP_ANON at all FWIW.

-- 
John Baldwin