From owner-freebsd-net@FreeBSD.ORG Wed Sep 28 15:13:23 2005 Return-Path: X-Original-To: net@FreeBSD.org Delivered-To: freebsd-net@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 04C1E16A41F for ; Wed, 28 Sep 2005 15:13:23 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by mx1.FreeBSD.org (Postfix) with ESMTP id B18F143D48 for ; Wed, 28 Sep 2005 15:13:22 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: from obsecurity.dyndns.org (CPE0050040655c8-CM00111ae02aac.cpe.net.cable.rogers.com [70.30.70.180]) by elvis.mu.org (Postfix) with ESMTP id 683801A3C19; Wed, 28 Sep 2005 08:13:22 -0700 (PDT) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 8EC2F521D5; Wed, 28 Sep 2005 11:13:20 -0400 (EDT) Date: Wed, 28 Sep 2005 11:13:20 -0400 From: Kris Kennaway To: SUZUKI Shinsuke Message-ID: <20050928151319.GA27347@xor.obsecurity.org> References: <20050927222634.GA46375@xor.obsecurity.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="Q68bSM7Ycu6FN28Q" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.1i Cc: net@FreeBSD.org, kris@obsecurity.org Subject: Re: ipv6 panic in 6.0 ([kris@FreeBSD.org: kern/85780: 'panic: bogus refcnt 0' in routing/ipv6]) X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Sep 2005 15:13:23 -0000 --Q68bSM7Ycu6FN28Q Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Sep 28, 2005 at 12:06:18PM +0900, SUZUKI Shinsuke wrote: > Hello kris, >=20 > >>>>> On Tue, 27 Sep 2005 18:26:34 -0400 > >>>>> kris@obsecurity.org(Kris Kennaway) said: >=20 > > Can someone please look into this ipv6 panic? It is now my #1 panic > > on 6.0 (every few days, and I hardly make any use of ipv6 except for > > light nfs and tcp traffic), so it would be good to get it fixed before > > the release. >=20 > Let me confirm one thing. > Did you also see a message "panic: bogus refcnt 0", in your panic? Yes, that's the panic string. > As far as I investigated, only IF_CLONE_REMREF_LOCKED() can display > this message. But it's called only in > if_clone_create/detach/destory(), and none of them seems to be called > according to the description in the PR. (rtexpunge() in route.c also > has this message, but it is commented out by "if 0", so it is not the > cause of this message) I have a number of (sparc64) cores for this panic if you'd like to see them. Kris --Q68bSM7Ycu6FN28Q Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDOrMPWry0BWjoQKURAi56AKDxgstbaXAPZ08l+1zihv1k73QjdQCeO2tk 6wPd/vC6wPc0N4Ne5/eJOiY= =MJa0 -----END PGP SIGNATURE----- --Q68bSM7Ycu6FN28Q--