From owner-freebsd-net@FreeBSD.ORG Wed Sep 28 03:07:13 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 5FF5116A420 for ; Wed, 28 Sep 2005 03:07:13 +0000 (GMT) (envelope-from suz@alaxala.net) Received: from pc1.alaxala.kame.net (kame219.kame.net [203.178.141.219]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9B4FA43D53 for ; Wed, 28 Sep 2005 03:07:11 +0000 (GMT) (envelope-from suz@alaxala.net) Received: from localhost (localhost [127.0.0.1]) by pc1.alaxala.kame.net (Postfix) with ESMTP id 503DB62B5; Wed, 28 Sep 2005 12:07:47 +0900 (JST) Received: from pc1.alaxala.kame.net ([127.0.0.1]) by localhost (pc1.alaxala.kame.net [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 97685-02; Wed, 28 Sep 2005 12:07:42 +0900 (JST) Received: from flora220.uki-uki.net (240.163.192.61.tokyo.global.alpha-net.ne.jp [61.192.163.240]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by pc1.alaxala.kame.net (Postfix) with ESMTP id D8F1262B4; Wed, 28 Sep 2005 12:07:41 +0900 (JST) Date: Wed, 28 Sep 2005 12:06:18 +0900 Message-ID: From: SUZUKI Shinsuke To: kris@obsecurity.org X-cite: xcite 1.33 In-Reply-To: <20050927222634.GA46375@xor.obsecurity.org> References: <20050927222634.GA46375@xor.obsecurity.org> User-Agent: Wanderlust/2.15.1 (Almost Unreal) Emacs/22.0 Mule/5.0 (SAKAKI) Organization: Technical Marketing Dept., ALAXALA Networks Corporation MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII X-Virus-Scanned: amavisd-new at alaxala.kame.net Cc: net@FreeBSD.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 03:07:13 -0000 Hello kris, >>>>> On Tue, 27 Sep 2005 18:26:34 -0400 >>>>> kris@obsecurity.org(Kris Kennaway) said: > 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. Let me confirm one thing. Did you also see a message "panic: bogus refcnt 0", in your panic? 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) Thanks, ---- SUZUKI, Shinsuke @ KAME Project