Date: Wed, 1 Sep 2004 23:30:18 -0400 (EDT) From: Robert Watson <rwatson@freebsd.org> To: Patrick Guelat <pg@imp.ch> Cc: freebsd-current@freebsd.org Subject: Re: Panic in propagate_priority() [5.3-BETA2] Message-ID: <Pine.NEB.3.96L.1040901232805.31277B-100000@fledge.watson.org> In-Reply-To: <20040901223721.S82908@murphy.imp.ch>
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On Wed, 1 Sep 2004, Patrick Guelat wrote: > Since nobody answered to the problem yet that I reported a few days > ago I did some more tests and got several panics since then... >=20 > I'm trying to run OSPF6 on a gif-tunnel between a Cisco-7206VXR and a > box running 5.3-BETA2 and get a panic everytime I start ospf6d (from > /usr/ports/net/quagga).=20 >=20 > It always ends in a panic in propagate_priority(), sometimes I get the > following panic-message:=20 >=20 > panic: process 37 (swi1: net):1 holds rip but isn't blocked on a > lock >=20 > "rip" is the lock defined in netinet/raw_ip.c which is also used by the > netinet6/raw_ip6.c.=20 A couple of questions: - Is this an SMP box? - Is PREEMPTION enabled on the box? - Are you using net.isr.enable=3D1 or debug.mpsafenet=3D1? Is WITNESS compiled into your kernel, and if so, when you drop to DDB from panic(), what does "show pcpu", "show locks", and "show locks 37" indicate? Robert N M Watson FreeBSD Core Team, TrustedBSD Projects robert@fledge.watson.org Principal Research Scientist, McAfee Research >=20 > Tracing the userland-part nearly always ends at the sendmsg(2) > call on the raw socket, but sometimes the panic also occurs=20 > some time before ospf6d sends it's first hello message (maybe during > the reception of the ipv6 ospf packet from the cisco ?) >=20 > Regards >=20 > Patrick > -- > Patrick Gu=E9lat, ImproWare AG Network Services, CH-4133 Pratteln > Mail: Patrick.Guelat@imp.ch - Phone: +41 61 826 93 00 (ext: 13)
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