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Date: Tue, 23 Mar 2010 20:18:08 +0100
From: Ed Schouten <ed@80386.nl>
To: Dmitry Krivenok <krivenok.dmitry@gmail.com>
Message-ID: <20100323191808.GE32142@hoeg.nl>
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Cc: freebsd-hackers@freebsd.org
Subject: Re: Strange behavior of kernel module (output terminated)
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* Dmitry Krivenok <krivenok.dmitry@gmail.com> wrote:
> As you can see the loop was terminated after i=3D=3D466.
> I tried to load/unload the module many times but the last printed number =
was
> always 466.
>=20
> Then I compiled the same module on FreeBSD-7.2 (note, the first test was =
run
> on 8.0).
> I saw exactly the same behavior except that the last number was always 55=
0.

Yes. There is not a single form of flow control here, so if you can't
write more data into the TTY buffers, it will just get discarded.
FreeBSD 7 does the same thing as 8, but the default buffer sizes are
probably a bit different.

--=20
 Ed Schouten <ed@80386.nl>
 WWW: http://80386.nl/

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