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The following reply was made to PR kern/48787; it has been noted by GNATS.
From: David Holland <dholland-bugs%netbsd.org@localhost>
Cc: Wolfgang Solfrank <Wolfgang%Solfrank.net@localhost>, scdbackup%gmx.net@localhost
Subject: Re: kern/48787
Date: Sun, 5 Jul 2015 16:34:14 +0000
On Wed, May 21, 2014 at 11:25:01PM +0000, Wolfgang Solfrank wrote:
> Be my guest. However, this will be a larger project than just
> updating code in cd9660. The problem is that an extent (as you
> indicate above) ist a "byte interval ... of the overall file". What this
> means is that you can have a file with a first extent of, say, 3 bytes
> and a second one of 5 bytes and so on (which looks absurd when
> you first look at it, but does make sense if you think about multi-
> session cds where you e.g. extend some logfile in a later session.)
> The buffer cache in its current implementation doesn't support
> this.kind of fragmentation.
For the record, I don't think this should require any more than a
custom getpages method. Mind you, that's not trivial.
David A. Holland
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