Date: Thu, 01 Feb 2001 17:20:39 -0200 From: Joao Carlos Mendes Luis <jonny@jonny.eng.br> To: Luigi Rizzo <rizzo@aciri.org> Cc: yusufg@outblaze.com, freebsd-net@FreeBSD.ORG, freebsd-stable@freebsd.org, phk@freebsd.org Subject: Solved: Bridging and dummynet seems to destroy dmesg output Message-ID: <3A79B707.3DF0B6D@jonny.eng.br> References: <200101312212.f0VMCHj08290@iguana.aciri.org>
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Luigi Rizzo wrote:
>
> > I tried only removing DUMMYNET from config, and the bug continues. Should
> > I try the changes below?
>
> no-they only affect dummynet. But this seems to suggest that
> the problem is unrelated to my changes...
>
> 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,
Jonny
--
João Carlos Mendes Luís jonny@embratel.net.br
Networking Engineer jonny@jonny.eng.br
Internet via Embratel jcml@ieee.org
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