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Date: Sat, 13 Nov 2004 21:38:31 +0100
From: Arjan Van Leeuwen <avleeuwen@gmail.com>
To: Robert Watson <rwatson@freebsd.org>
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cc: freebsd-stable@freebsd.org
Subject: Re: Panic in 5.3, related to network traffic
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On Wed, 10 Nov 2004 16:42:01 +0000 (GMT), Robert Watson
<rwatson@freebsd.org> wrote:
> 
> On Wed, 10 Nov 2004, Arjan Van Leeuwen wrote:
> 
> > > Could you send a copy of your dmesg?  Could you also use gdb on a kernel
> > > with debug symbols or addr2line to convert the function+offsets in the
> > > trace to file and line number in the source?  This is a NULL pointer
> > > dereference, so presumably somewhere there is a poor assumption about
> > > memory allocation or the like.
> >
> > dmesg is attached.
> 
> Could you say a little about how ipfilter is being used on the box; would
> it be possible to test with it disabled?

I've converted my ipfilter/ipnat system to ipfw/natd, and now the
problem is "solved".

However, your patch still gives me a *lot* of icmp_error: n_spare != n
messages. I also noticed that if I ping from that system, it pings
every 2 seconds instead of every second. The clock doesn't seem to be
affected, and changing kern.timecounter.hardware doesn't change the
situation.

Arjan

> 
> 
> 
> Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
> robert@fledge.watson.org      Principal Research Scientist, McAfee Research
> 
>