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Date: Sat, 8 Oct 2011 12:16:06 -0400
Message-ID: <CACqU3MUQQ6XQTFXhVe1Jtu4Aey3KCdkTcprD7Ojq3oUrdC8b-w@mail.gmail.com>
From: Arnaud Lacombe <lacombar@gmail.com>
To: Poul-Henning Kamp <phk@phk.freebsd.dk>
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Cc: Warren Block <wblock@wonkity.com>, Glen Barber <gjb@freebsd.org>,
	freebsd-current@freebsd.org, Garrett Cooper <yanegomi@gmail.com>,
	Benjamin Kaduk <kaduk@mit.edu>
Subject: Re: aliasing (or renaming) kern.geom.debugflags
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Hi,

On Sat, Oct 8, 2011 at 4:11 AM, Poul-Henning Kamp <phk@phk.freebsd.dk> wrote:
> In message <CACqU3MVgVUxe+Mtaf9wq6oz5=PZAq=Sx-ihyQh1GyjD3PXmjhQ@mail.gmail.com>
> , Arnaud Lacombe writes:
>
>>If you expose a setting, you cannot rely on a user not to use it even
>>if you told him not to. As long as this is exposed and usable, it will
>>be used, even more when it was documented.
>
> This is clearly marked as a debug tool, the only bug here, is that people
> tell users to abuse it in the documentation.
>
User do not care to understand the meaning of an option, you leave a
hole somewhere, it will be used. I'm not even speaking about security
issue here...

This should never have been present in a release kernel.

 - Arnaud