From owner-freebsd-stable  Thu Feb  1 11:41:11 2001
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From: Luigi Rizzo <rizzo@aciri.org>
Message-Id: <200102011940.f11Je7561000@iguana.aciri.org>
Subject: Re: Solved: Bridging and dummynet seems to destroy dmesg output
In-Reply-To: <3A79B707.3DF0B6D@jonny.eng.br> from Joao Carlos Mendes Luis at "Feb 1, 2001  5:20:39 pm"
To: jonny@jonny.eng.br (Joao Carlos Mendes Luis)
Date: Thu, 1 Feb 2001 11:40:07 -0800 (PST)
Cc: rizzo@aciri.org, yusufg@outblaze.com, freebsd-net@FreeBSD.ORG,
	freebsd-stable@FreeBSD.ORG, phk@FreeBSD.ORG
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thanks for tracking this problem -- it also explains
why i did not see it in my environment, as i have a mostly 4.2-R
system with new code in net/ and netinet/

	cheers
	luigi

> Hi,
> 
>     I found the problem!
> 
>     I started searching for the point where ipfw writes to the msgbuf, and
> like all other kernel modules, it uses the log(9) function.  But differently
> from the other modules, ip_fw.c uses a LOG_SECURITY argument.  I removed it,
> recompiled, reboot, and BINGO!  Probably the log(9) function does not expect a
> facility parameter, as it is assumed to be LOG_KERNEL.
> 
>     Searching the cvsweb tree, I assume the changes that made it fail were
> made to kern/subr_prf.c, and not directly to netinet/ip_fw.c.  Probably a
> longer search should be made to detect if any other call to log(9) uses this
> approach.  (CC: to phk, who made the change to kern/subr_prf.c, 1.61.2.1, at
> 2000.01.16)
> 
>     Hoping this is the final solution and waiting for the cvs commit, thanks
> to everybody,


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