From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <d8e5a489a2445a251fc0acdfe8097c48@terzarima.net>
From: Charles Forsyth <forsyth@terzarima.net>
Date: Thu,  2 Apr 2009 11:31:12 +0100
To: lucio@proxima.alt.za, 9fans@9fans.net
In-Reply-To: <6c529a9785a1131ce815f5fa79593321@proxima.alt.za>
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Subject: Re: [9fans] segfree() - more details?
Topicbox-Message-UUID: d0820d5e-ead4-11e9-9d60-3106f5b1d025

>in segattach(2) suggests that there is some mechanism to associate
>disk file portions with memory segments (that being what Unix's MMAP
>does, roughly),

not really: it will read initial text and data from an image,
but that's it.  apparently if you segfree your data space it
will reinitialise it from the image, effectively resetting it,
but i'd be surprised if anything uses that.