Date: Tue, 9 Jan 2007 17:04:24 +0100 From: Max Laier <max@love2party.net> To: freebsd-current@freebsd.org Cc: Julian Elischer <julian@FreeBSD.org>, Rong-en Fan <grafan@gmail.com>, Paolo Pisati <piso@freebsd.org>, Sergey Zaharchenko <doublef-ctm@yandex.ru> Subject: Re: Page fault in ipfw? Message-ID: <200701091704.32045.max@love2party.net> In-Reply-To: <6eb82e0701090729q7a5d9b0h42797401204c7301@mail.gmail.com> References: <20070109115227.GA2325@shark.localdomain> <20070109150932.GA2934@shark.localdomain> <6eb82e0701090729q7a5d9b0h42797401204c7301@mail.gmail.com>
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On Tuesday 09 January 2007 16:29, Rong-en Fan wrote:
> On 1/9/07, Sergey Zaharchenko <doublef-ctm@yandex.ru> wrote:
> > Hello Rong-en!
> >
> > Tue, Jan 09, 2007 at 10:07:16PM +0800 you wrote:
> > > On 1/9/07, Sergey Zaharchenko <doublef-ctm@yandex.ru> wrote:
> > > >Hello -current,
> > > >
> > > >After updating from December to yesterday's CURRENT (to try
> > > > catching the SMB recursive locking) I observe the following fault
> > > > when I connect to the internet via PPP:
> > >
> > > [...]
> > >
> > > Just curious, do you have any rule with 'log' keyword?
> >
> > Well yes I do, and the logging seems to be it. I'm having problems
> > with making a normal stack trace, but the fault itself occurs in
> > ipfw_log()
> >
> > at /usr/src/sys/netinet/ip_fw2.c:928:
> > : {
> > : tcp =3D L3HDR(struct tcphdr, ip); <--- here
> > : udp =3D L3HDR(struct udphdr, ip);
> >
> > I've tried setting net.inet.ip.fw.verbose=3D0 and everything seems ok.
> > But I'd like to keep logging...
> >
> > Thank you,
>
> I also see this problem on my current. I will try to obtain a core dump
> this week.
Strange. The initial dump looked like a call to a NULL function pointer,=20
but this looks differently. There where two bigger changes in ip_fw2.c=20
that might be related: The cleanup of mtod() and LibAlias. The latter is=20
now cleanly #ifdef'ed out (at least it seems that way to me). I've CC'ed=20
the corresponding authors so if you could provide a better dump, maybe=20
something comes to mind.
=2D-=20
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