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Date:      Thu, 7 Dec 1995 06:39:53 -0800 (PST)
From:      John Dyson <dyson>
To:        root@buffnet.net (Steve Hovey)
Cc:        terry@lambert.org, jau@jau.csc.fi, questions@freebsd.org, hackers@freebsd.org
Subject:   Re: Any operational code using mmap() on FreeBSD ?
Message-ID:  <199512071439.GAA16815@freefall.freebsd.org>
In-Reply-To: <Pine.SCO.3.91.951207091243.28880D-100000@buffnet1.buffnet.net> from "Steve Hovey" at Dec 7, 95 09:13:56 am

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> 
> MMAP under freebsd 2.05-R is broken.  I run an INN news server on 2.0.5R 
> and if I compiled it using MMAP, the correct values were not maintained 
> in the active file.  This problems occurred when usage got to the size 
> that virtual ram swapping came into play.
> 
Yep, there are some problems -- the code in current is better.  The
problem has to do with  entirely bogus msync code. (That I wrote.)  Also,
don't *even* think about using NFS and mmap for writable regions in
2.0.5. 

John
dyson@freebsd.org




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