From owner-freebsd-current@FreeBSD.ORG Tue Nov 8 01:05:57 2005 Return-Path: X-Original-To: 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 2E3DD16A41F; Tue, 8 Nov 2005 01:05:57 +0000 (GMT) (envelope-from sean@mcneil.com) Received: from mail.mcneil.com (mcneil.com [24.199.45.54]) by mx1.FreeBSD.org (Postfix) with ESMTP id C9DE143D46; Tue, 8 Nov 2005 01:05:56 +0000 (GMT) (envelope-from sean@mcneil.com) Received: from localhost (localhost.mcneil.com [127.0.0.1]) by mail.mcneil.com (Postfix) with ESMTP id 7B270F2425; Mon, 7 Nov 2005 17:05:56 -0800 (PST) Received: from mail.mcneil.com ([127.0.0.1]) by localhost (server.mcneil.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 00808-01; Mon, 7 Nov 2005 17:05:55 -0800 (PST) Received: from mcneil.com (mcneil.com [24.199.45.54]) by mail.mcneil.com (Postfix) with ESMTP id 9E407F1C72; Mon, 7 Nov 2005 17:05:55 -0800 (PST) From: Sean McNeil To: Mark Linimon In-Reply-To: <20051108000537.GC16191@soaustin.net> References: <20051107182338.2D9CE16A420@hub.freebsd.org> <1131391243.1343.6.camel@server.mcneil.com> <20051108000537.GC16191@soaustin.net> Content-Type: text/plain Organization: Sean McNeil Consulting, Inc Date: Mon, 07 Nov 2005 17:05:55 -0800 Message-Id: <1131411955.1350.12.camel@server.mcneil.com> Mime-Version: 1.0 X-Mailer: Evolution 2.4.1 FreeBSD GNOME Team Port Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new at mcneil.com X-Mailman-Approved-At: Tue, 08 Nov 2005 04:19:08 +0000 Cc: Bill Paul , ume@freebsd.org, current@freebsd.org Subject: Re: recent MFC code to 6-STABLE kills ipv6 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: sean@mcneil.com List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Nov 2005 01:05:57 -0000 On Mon, 2005-11-07 at 18:05 -0600, Mark Linimon wrote: > On Mon, Nov 07, 2005 at 11:20:43AM -0800, Sean McNeil wrote: > > > The dc(4) driver supports a whole bunch of different chips. It really > > > really really matters that you tell us exactly which one you have. > > > > How could this possibly matter? There were no changes to the dc0 driver > > from Nov 1st to present. > > The essence of good bug reports is to report any fact that might _possibly_ > be relevant. It helps to quickly eliminate possibilities. > > This isn't just true for FreeBSD; I have fought this battle for decades > in this profession. Sometimes even as I'm composing a bug report I find > myself walking through my list of unstated assumptions about what the > problem "must" be. Half the time one of my assumptions is bogus. > > This is not a criticism of the OP, this is just how engineering works -- > if we presuppose too much about the problem, rather than just reporting > symptoms, we can wind up going around in circles. > > The PR database has many hundreds of such entries, unfortunately. Guess I sounded too defensive on that point. I was curious, though, as we are really tracking down a change that killed IPv6 in a particular way. I've been guilty of overlooking evidence myself in the past, but I honestly do not see the relevance in this case. In the name of full disclosure, here is my hardware: Gigabyte K8 Triton series with 3800+ 2x Athlon, 2GB DDR 400 RAM and builtin sk0 Marvell gigE for internal network. Old Linksys dc0 PCI card that I can look at to get additional info if required. dmesg info: CPU: AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ (2080.20-MHz K8-class CPU) Origin = "AuthenticAMD" Id = 0x20f32 Stepping = 2 Features=0x178bfbff Features2=0x1 AMD Features=0xe2500800,LM,3DNow+,3DNow> Hyperthreading: 2 logical CPUs real memory = 2147418112 (2047 MB) avail memory = 2062999552 (1967 MB) ACPI APIC Table: ... dc0: port 0xa400-0xa4ff mem 0xf5005000-0xf50053ff irq 17 at device 9.0 on pci2 miibus0: on dc0 ukphy0: on miibus0 ukphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto dc0: Ethernet address: 00:03:6d:1a:b1:9b skc0: port 0xa800-0xa8ff mem 0xf5000000-0xf5003fff irq 19 at device 11.0 on pci2 skc0: Marvell Yukon Lite Gigabit Ethernet rev. (0x9) sk0: on skc0 sk0: Ethernet address: 00:14:85:85:27:b3 miibus1: on sk0 e1000phy0: on miibus1 e1000phy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseTX-FDX, auto ... Of additional interest is the fact that I can actually ping6 both interfaces from my Powerbook running Tiger 10.4.3. It is connected on the sk0 side. Cheers, Sean