From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760207AbYEHXLC (ORCPT ); Thu, 8 May 2008 19:11:02 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751255AbYEHXKw (ORCPT ); Thu, 8 May 2008 19:10:52 -0400 Received: from smtpq1.tilbu1.nb.home.nl ([213.51.146.200]:49787 "EHLO smtpq1.tilbu1.nb.home.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751227AbYEHXKv (ORCPT ); Thu, 8 May 2008 19:10:51 -0400 Message-ID: <482388C9.2080909@keyaccess.nl> Date: Fri, 09 May 2008 01:12:09 +0200 From: Rene Herman User-Agent: Thunderbird 2.0.0.14 (X11/20080421) MIME-Version: 1.0 To: Linus Torvalds CC: Linux Kernel Subject: Re: GIT bisection range errors References: <48237CA0.4080001@keyaccess.nl> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -1.0 (-) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09-05-08 01:00, Linus Torvalds wrote: > On Fri, 9 May 2008, Rene Herman wrote: >> I'm in a git bisect and am experiencing strangeness. I did a >> >> $ git checkout -b rc v2.6.26-rc1 >> $ git bisect start >> $ git bisect bad >> $ git bisect good v2.6.25 >> >> Yet, during this I'm finding myself at 2.6.25-rc6 and 2.6.25-rc8 >> as the last two results (both good...). > > This is very normal. > > Why? > > Because a lot (in fact, *most*) of the code that was merged after v2.6.25 > was released was actually *written* and committed long before v2.6.25. > > It just got merged into my tree much later. > > So what happens? The bisection run starts walking into all that history, > and that history is *not* based on the released v2.6.25 at all, it's based > on much earlier kernels (eg the -rc kernels). > > So what you see is perfectly normal and expected. It's only unexpected if > you think of history as a linear thing, but it isn't - it's full of > merging of code that was branched off from (much) earlier code points. Ah. Yes, that needs a bit of thought re-warping, but I guess that makes sense. Thanks much, was afraid I needed to rebuild my local tree. Rene.