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From: "John S. Dyson" <toor@dyson.iquest.net>
Message-Id: <199605112312.SAA01491@dyson.iquest.net>
Subject: Re: inn & mmap
To: mrcpu@cdsnet.net (Jaye Mathisen)
Date: Sat, 11 May 1996 18:12:46 -0500 (EST)
Cc: craig@ProGroup.COM, questions@FreeBSD.ORG
In-Reply-To: <Pine.NEB.3.92.960511154327.10667J-100000@schizo.cdsnet.net> from "Jaye Mathisen" at May 11, 96 03:44:56 pm
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> 
> Hmmm, I thought there was a consensus that something was flaky if the
> active file changed size via newgroup/rmgroup messages with MMAP.
> 
> If I turn off all newgroup/rmgroup processing, then I have 0 problems with
> the FreeBSD mmap.  If I process newgroup/rmgroups, I have problems.  Leads
> me to believe something flaky there.
> 
I am wondering if someone has some code
to emulate the innd active file processing.  I have tried to mimick the
problem with my own code, to no avail.  Maybe I'll look into it again soon...
I have heard of other OSes (incl. AIX) having the problem.  I cannot see a
problem in the innd source code though.  There must be a very subtile problem
with timing in our VM system???  I don't know... (YET :-)).

John