From owner-freebsd-current@FreeBSD.ORG Sat Nov 15 19:32:33 2014 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id C77AE8B5 for ; Sat, 15 Nov 2014 19:32:33 +0000 (UTC) Received: from mho-02-ewr.mailhop.org (mho-02-ewr.mailhop.org [204.13.248.72]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 9AE74D99 for ; Sat, 15 Nov 2014 19:32:33 +0000 (UTC) Received: from [73.34.117.227] (helo=ilsoft.org) by mho-02-ewr.mailhop.org with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.72) (envelope-from ) id 1Xpj5E-000LZk-1w; Sat, 15 Nov 2014 19:32:32 +0000 Received: from [172.22.42.240] (revolution.hippie.lan [172.22.42.240]) by ilsoft.org (8.14.9/8.14.9) with ESMTP id sAFJWUPu006515; Sat, 15 Nov 2014 12:32:30 -0700 (MST) (envelope-from ian@FreeBSD.org) X-Mail-Handler: Dyn Standard SMTP by Dyn X-Originating-IP: 73.34.117.227 X-Report-Abuse-To: abuse@dyndns.com (see http://www.dyndns.com/services/sendlabs/outbound_abuse.html for abuse reporting information) X-MHO-User: U2FsdGVkX1/P4yZqqNJjZ+MpmjgrjRrN X-Authentication-Warning: paranoia.hippie.lan: Host revolution.hippie.lan [172.22.42.240] claimed to be [172.22.42.240] Subject: Re: Finding a rogue src/sys commit with bisection? From: Ian Lepore To: Alfred Perlstein In-Reply-To: <5467A37B.8010506@mu.org> References: <20141115184332.GA30344@troutmask.apl.washington.edu> <5467A1F2.8000703@mu.org> <20141115190133.GA30576@troutmask.apl.washington.edu> <5467A37B.8010506@mu.org> Content-Type: text/plain; charset="us-ascii" Date: Sat, 15 Nov 2014 12:32:29 -0700 Message-ID: <1416079949.4781.156.camel@revolution.hippie.lan> Mime-Version: 1.0 X-Mailer: Evolution 2.32.1 FreeBSD GNOME Team Port Content-Transfer-Encoding: 7bit Cc: freebsd-current@freebsd.org X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18-1 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: Sat, 15 Nov 2014 19:32:33 -0000 On Sat, 2014-11-15 at 11:03 -0800, Alfred Perlstein wrote: > On 11/15/14, 11:01 AM, Steve Kargl wrote: > > On Sat, Nov 15, 2014 at 10:56:50AM -0800, Alfred Perlstein wrote: > >> On 11/15/14, 10:43 AM, Steve Kargl wrote: > >>> Before I totally hose by /usr/src directory, does anyone > >>> have some guidelines on doing a binary search for a rogue > >>> commit in /usr/src/sys?. Either cam or usb (or acpi?) has > >>> broken the ability to remove a external USB device once it > >>> is plugged into a usb port on my Dell Latitude D530 laptop. > >>> I know that a good kernel can be built with r271273 and > >>> a bad kernel comes from (nearly) top of tree at r274456. > >>> > >>> I assume I need to do somthing along the lines > >>> > >>> % cd /usr/src/sys > >>> % svn merge -r 274456:272864 (half way point between good and bad) > >>> (build kernel and test) > >>> % cd /usr/src/sys > >>> % svn revert -R . > >>> (assume 272864 builds working kernel) > >>> % svn merge -r 274456:273660 (1/2 point between 272864 and 274456). > >>> > >>> Rinse and repeat. > >>> > >> Use git, it has a built in bisector to shake this sort of thing out: > >> > > I won't be drawn into the git debate. > > > OK, so we don't want to use a tool purposefully built for the problem > you are facing? Doesn't seem like a "git debate" more like hammering in > screws... > This in-your-face git evangelism is getting REALLY OLD, REALLY FAST. Please stop it. I have nothing in particular against git, I just have no interest in it. But that's rapidly transforming into active dislike in exact proportion to being repeatedly talked down to by someone with a different opinion, and apparently the belief that folks with other opinions just need more repetitious condescention to see the light. -- Ian