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Date:      Thu, 12 Jan 2012 22:23:08 +0000
From:      "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
To:        Matt Lager <mlager@sdunix.com>
Cc:        freebsd-pf@freebsd.org
Subject:   Re: PF state key linking mismatch in FreeBSD 9.0-RELEASE
Message-ID:  <7534A9A5-D901-43E2-A7D7-3F45699B2C91@lists.zabbadoz.net>
In-Reply-To: <4F0F4B94.10408@sdunix.com>

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On 12. Jan 2012, at 21:07 , Matt Lager wrote:

> I've had a bug report in on this for a while but hasn't received a response yet, also posted to the FreeBSD forums and haven't received a response either, see these links:
> 
> http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/163208
> http://forums.freebsd.org/showthread.php?t=28278
> 
> I don't believe it to be a configuration issue, and this is really preventing me from using FreeBSD 9.0 as VPN endpoints. If anyone has any information on this, I would greatly appreciate it.

yeah it's the re-use of an mbuf that previously passed through pf.  The logging is noise basically though can be painful with a slow (serial) console.  I have a sysctl locally to disable the logging, OpenBSD has removed the printf by now.  I agree that we need to fix these places where it still originates and even if it's for documentation purposes to eventually decide if re-using the mbuf there is really cheaper  to allocating a new one as other people lately found transporting other properties along with the mbuf and re-using that can lead to odd results.

/bz

-- 
Bjoern A. Zeeb                                 You have to have visions!
   It does not matter how good you are. It matters what good you do!



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