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Date: Tue, 08 Apr 2008 18:58:35 +0100
From: "Bruce M. Simpson" <bms@FreeBSD.org>
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To: John Baldwin <jhb@freebsd.org>
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Cc: Petr Holub <hopet@ics.muni.cz>, re@FreeBSD.org, freebsd-stable@freebsd.org
Subject: Re: panics on 6.3-RELEASE in IP stack
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John Baldwin wrote:
> On Monday 07 April 2008 12:16:53 pm Petr Holub wrote:
>   
>> Hi all,
>>
>> I started to play with RAT application (ports: mbone/rat + an SVN version)
>> and
>> it seems to crash my 6.3-RELEASE-p1 box in rather deterministic way. Crash
>> details are shown below. Has anyone seen a problem like this?
>>     
>
> Yes, there's an off-by-one reference count bug in the multicast stuff.

I concur, this fix should really be MFCed. The problem went away in 7.x 
due to a total rewrite. I am distracted by other stuff at the moment, 
so, starter's orders...

cheers
BMS