From owner-freebsd-current@FreeBSD.ORG Wed Aug 31 13:49:36 2005 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0A04816A41F for ; Wed, 31 Aug 2005 13:49:36 +0000 (GMT) (envelope-from yar@comp.chem.msu.su) Received: from comp.chem.msu.su (comp.chem.msu.su [158.250.32.97]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1C02943D46 for ; Wed, 31 Aug 2005 13:49:32 +0000 (GMT) (envelope-from yar@comp.chem.msu.su) Received: from comp.chem.msu.su (localhost [127.0.0.1]) by comp.chem.msu.su (8.13.3/8.13.3) with ESMTP id j7VDnSvp020746; Wed, 31 Aug 2005 17:49:28 +0400 (MSD) (envelope-from yar@comp.chem.msu.su) Received: (from yar@localhost) by comp.chem.msu.su (8.13.3/8.13.3/Submit) id j7VDnSt7020745; Wed, 31 Aug 2005 17:49:28 +0400 (MSD) (envelope-from yar) Date: Wed, 31 Aug 2005 17:49:27 +0400 From: Yar Tikhiy To: Gavin Atkinson Message-ID: <20050831134927.GA20529@comp.chem.msu.su> References: <1125487485.34476.6.camel@buffy.york.ac.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1125487485.34476.6.camel@buffy.york.ac.uk> User-Agent: Mutt/1.5.9i Cc: freebsd-current@freebsd.org Subject: Re: 6.0BETA3 panic in ip_output (vlan/RIP related?) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 31 Aug 2005 13:49:36 -0000 On Wed, Aug 31, 2005 at 12:24:45PM +0100, Gavin Atkinson wrote: > > I've just managed to panic an amd64 machine running 6.0BETA3. > > wiggum# ifconfig vlan76 destroy > wiggum# Aug 31 12:02:48 wiggum routed[244]: IP_DROP_MEMBERSHIP ALLHOSTS: Can't assign requested address > wiggum# > wiggum# ifconfig vlan76 create > wiggum# ifconfig vlan76 vlan 76 vlandev bge0 > wiggum# ifconfig vlan76 inet x.y.76.59 netmask 255.255.254.0 > > > Fatal trap 9: general protection fault while in kernel mode > cpuid = 0; apic id = 00 > instruction pointer = 0x8:0xffffffff80429420 > stack pointer = 0x10:0xffffffffb260b600 > frame pointer = 0x10:0xffffffffb260b710 > code segment = base 0x0, limit 0xfffff, type 0x1b > = DPL 0, pres 1, long 1, def32 0, gran 1 > processor eflags = interrupt enabled, resume, IOPL = 0 > current process = 244 (routed) Thanks for reporting this! The problem seems known and has to do with a deficiency in our multicast code WRT interface removal/re-insertion. It is on the to-do list of our networking gurus and hopefully will be dealt with RSN, after IP multicast code locking and cleanup are complete. -- Yar