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Date: Mon, 29 Mar 2010 23:47:16 +0300
From: Andriy Gapon <avg@freebsd.org>
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To: Fabian Keil <freebsd-listen@fabiankeil.de>
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Cc: Kostik Belousov <kostikbel@gmail.com>, freebsd-current@freebsd.org
Subject: Re: newfs_msdos and DVD-RAM
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on 29/03/2010 23:29 Fabian Keil said the following:
> Andriy Gapon <avg@freebsd.org> wrote:
>> Thus, clearly, it is a fault of a tool that formatted the media for FAT.
>> It should have picked correct values, or rejected incorrect values if
>> those were provided as overrides via command line options.
> 
> The kernel still shouldn't panic, though.

A quick reply to this point only - yes, I completely agree.
But remember that the panic happened only after the sources were modified :)
Jokes aside, mountmsdosfs() should reject incorrect combination of bytes/sector
and sectors/cluster and should produce proper diagnostics for that.

-- 
Andriy Gapon