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Here is another panic from this morning.=20

It is however strange that the panic happens within psql, since this =
command
uses IPv6... In this case, it seems the panic is not related to the =
current
process...=20

 login: panic: tcp_output
Stopped in pid 930.1 (psql) at  netbsd:cpu_Debugger+0x4:        popl    =
%ebp
db> bt
cpu_Debugger(c0516c5c,34,1,c6a93dbc,c012cd24) at netbsd:cpu_Debugger+0x4
panic(c02cb23a,c05a2000,c05a0038,0,0) at netbsd:panic+0x10f
tcp_output(c063147c,0,832c,24fe1b83,60000) at netbsd:tcp_output+0xd6c
tcp_input(c0516c00,14,6,c055281c,0) at netbsd:tcp_input+0x2a1f
ip_input(c0516c00,0,c0100c40,4,c054d800) at netbsd:ip_input+0x752
ipintr(c6a90010,c0220030,c6a40010,10,c6a93f78) at netbsd:ipintr+0x106
DDB lost frame for netbsd:Xsoftnet+0x41, trying 0xc6a93f0c
Xsoftnet() at netbsd:Xsoftnet+0x41
--- interrupt ---
0x10216:


db> show mbuf
MBUF 0xc0250e69
  data=3D0x4fa830c, len=3D1964006795, type=3D762,
flags=3D0xffffffff89018b06<PKTHDR,EOR,
BCAST,MCAST,ANYCAST6,LINK3,EXT_CLUSTER,EXT_RW>
  owner=3D0x84d8b53, next=3D0x5590c35d, nextpkt=3D0x558be589
  leadingspace=3D1154839659, trailingspace=3D1176121042, readonly=3D0
  pktlen=3D-2058694519, rcvif=3D0x66018b66,
csum_flags=3D0xffffffff8a0d74c0<IPv4,IPv4_
BAD>, csum_data=3D0x89038801, segsz=3D1245921744


_________________________________
=20
Konstantin K. KABASSANOV
=20
LIP6/CNRS
8, rue du Capitaine Scott
75015 Paris, France
=20
Phone: +33 (0) 1 44 27 71 26
Fax:   +33 (0) 1 44 27 74 95
=20
E-mail: konstantin@kabassanov.com
Web: http://www.kabassanov.com
_________________________________
=20
IMPORTANT! If you have tried to reply to this mail and you received a
stupid message, announcing that the mail had been rejected as spam,
please, resend your reply to the address above.=20
=20
The certificate used to sign this e-mail can be verified at:
http://igc.services.cnrs.fr/CNRS-Standard/recherche.html
=20
Mediocrity is the worst kind of failure...=20
=20
> -----Message d'origine-----
> De=A0: John R. Shannon [mailto:john@johnrshannon.com]
> Envoy=E9=A0: dimanche 23 avril 2006 14:08
> =C0=A0: Konstantin KABASSANOV
> Cc=A0: 'Steven M. Bellovin'; 'Rui Paulo'; tech-net@NetBSD.org; =
current-
> users@NetBSD.org
> Objet=A0: Re: something strange with mbuf length...
>=20
> Konstantin KABASSANOV wrote:
> >> -----Message d'origine-----
> >> De : current-users-owner@NetBSD.org [mailto:current-users-
> >> owner@NetBSD.org] De la part de John R. Shannon
> >> Envoy=E9 : samedi 22 avril 2006 16:13
> >> =C0 : Steven M. Bellovin
> >> Cc : Rui Paulo; tech-net@NetBSD.org; current-users@NetBSD.org
> >> Objet : Re: something strange with mbuf length...
> >>
> >> Steven M. Bellovin wrote:
> >>> On Sat, 22 Apr 2006 13:13:19 +0100, Rui Paulo <rpaulo@fnop.net> =
wrote:
> >>>
> >>>> "Konstantin KABASSANOV" <Konstantin.Kabassanov@lip6.fr> writes:
> >>>>
> >>>>> I do use ipfilter.
> >>>> Since you and Steve both use ipfilter, can this be the problem ?
> >>>>
> >>> That's very high on my list of suspects.  I've had the crash when
> using
> >>> two different interfaces, ath0 and ppp0.  The ppp0 instance =
doesn't
> >>> support v6; in fact, when I fire up ntpd after starting that link, =
I
> get
> >>>
> >>> bind() fd 12, family 24, port 123, addr fe80::211:25ff:fe43:e8a4,
> >> in6_is_addr_multicast=3D0 flags=3D0 fails: Can't assign requested =
address
> >>> My filter rules are very simple, too; no NAT, no proxies, just
> blocking
> >> a few ports.
> >>> 		--Steven M. Bellovin, http://www.cs.columbia.edu/~smb
> >>
> >> My lockups are unrelated. I'm using neither ath0, ppp0 or any =
packet
> >> filter. Rate of occurance is several time per day.
> >>
> >
> > Is your host forwarding ip traffic between different interfaces, or =
does
> it
> > use libpcap?
> >
> > Konstantin
>=20
> No. I'm experiencing lockups and simultaneous reboots on a SMP
> workstation with a single NIC (wm0). No use of libpcap.
>=20
> I have another system, with it's OS built from the same source, that
> runs ipfilter; I've seen no problems with it.
>=20
> --
> John R. Shannon, CISSP
> john@johnrshannon.com
> jshannon@dsci-usa.com
> john.r.shannon@us.army.mil
> shannonjr@NetBSD.org


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