Subject: kern/26736: 'looutput: no header mbuf' with today's 2.0beta
To: None <gnats-bugs@gnats.NetBSD.org>
From: None <firstname.lastname@example.org>
Date: 08/22/2004 23:52:33
>Synopsis: 'looutput: no header mbuf' when named starts
>Arrival-Date: Mon Aug 23 03:53:00 UTC 2004
>Originator: Steven M. Bellovin
>Release: NetBSD 2.0_BETA
System: NetBSD hudson.machshav.com 2.0_BETA NetBSD 2.0_BETA (HUDSON) #0: Sun Aug 22 22:48:24 EDT 2004 email@example.com:/usr/BUILD/obj/sys/arch/i386/compile/HUDSON i386
With a kernel from today's 2.0beta source, I get a
panic ('looutput: no header mbuf') when named starts up.
I believe that this is the same as kern/26666, but I'm now seeing
it on 2.0beta as well as on -current. It is almost certainly tied
to ipfilter, since on -current I can bypass the problem by not
starting ipfilter. I do not see the problem on a 2.0beta kernel
from 8 August. (Of course, I really want the newer ipfilter, since
it has icmpmapid, which the 8 August version does not.) Note that
I'm seeing this with only ipnat enabled, and without starting
ipfilter per se. (On -current, I'm seeing it with ipfilter and
See above. I can send my ipnat.conf if you want. I do not have
a core dump for 2.0beta, possibly because the machine is RAID-based.
The only bypass I know is to avoid running ipfilter -- but on
this machine, I need to run it...