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The following reply was made to PR kern/38121; it has been noted by GNATS.
From: Antti Kantee <pooka%cs.hut.fi@localhost>
Subject: Re: kern/38121
Date: Sun, 20 Sep 2009 12:07:19 +0300
A bit over a year ago I fixed one msdosfs problem resulting in "buf
mem pool index 23", but that manifested itself already at mount time.
It was due to unexpected values in bpb. I'm pretty sure this one is too.
You should be able to debug the problem fairly easily using rump_msdos
(but that doesn't exist out-of-the-box on NetBSD 4.0. It, however,
should be possible to use rump from -current and fs-utils to recreate
the problem). In any case, this PR is a textbook example of why to not
mount untrusted file system images with in-kernel drivers ...
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