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Date:      Tue, 3 May 2011 06:29:29 +0000 (UTC)
From:      Janne Snabb <snabb@epipe.com>
To:        Vlad Galu <dudu@dudu.ro>
Cc:        freebsd-stable@freebsd.org, Jeremy Chadwick <freebsd@jdc.parodius.com>, freebsd-pf@freebsd.org
Subject:   Re: RELENG_8 pf stack issue (state count spiraling out of control)
Message-ID:  <alpine.BSF.2.00.1105030618250.33272@tiktik.epipe.com>
In-Reply-To: <BANLkTi=A8uLW-efz8xZRYS2sGoMq%2BF%2BVhA@mail.gmail.com>
References:  <20110503015854.GA31444@icarus.home.lan> <BANLkTi=R9fQQZQmLG7HJH%2Bfm3xrJv=HPqA@mail.gmail.com> <20110503060106.GA36331@icarus.home.lan> <BANLkTi=A8uLW-efz8xZRYS2sGoMq%2BF%2BVhA@mail.gmail.com>

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On Tue, 3 May 2011, Vlad Galu wrote:

> Disabling scrubbing altogether seems like a good next step.

I used to get all kinds of strange problems when I tried scrubbing
on FreeBSD 8.1. Especially with IPv6 traffic. After I disabled
scrubbing altogether I have had zero problems. The IP & TCP stacks
behind this particular pf are good ones anyway, so scrubbing was
useless anyway.

My belief is that scrubbing is just broken, but I do not have any
hard facts about it. I did not bother wasting my time trying to
debug it after I noticed that the pf code has not been updated from
the upstream for quite a while. The first thing would be to get on
the same level with the upstream in case the problem is fixed
there. However, I do not want to touch OpenBSD code for personal
reasons.

--
Janne Snabb / EPIPE Communications
snabb@epipe.com - http://epipe.com/



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