From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1765366AbXFRSfr (ORCPT ); Mon, 18 Jun 2007 14:35:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1762597AbXFRSfj (ORCPT ); Mon, 18 Jun 2007 14:35:39 -0400 Received: from smtp2.linux-foundation.org ([207.189.120.14]:52912 "EHLO smtp2.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1763061AbXFRSfi (ORCPT ); Mon, 18 Jun 2007 14:35:38 -0400 Date: Mon, 18 Jun 2007 11:35:03 -0700 (PDT) From: Linus Torvalds To: Carlo Wood cc: Dave Jones , linux-kernel@vger.kernel.org, eric@anholt.net, zhenyu.z.wang@intel.com, lethal@linux-sh.org, y-goto@jp.fujitsu.com Subject: Re: 2.6.22-rc5 regression In-Reply-To: <20070618181225.GB8054@alinoe.com> Message-ID: References: <20070617182254.GA17595@alinoe.com> <20070617195805.GA6125@alinoe.com> <20070617214905.GA6207@alinoe.com> <20070618181225.GB8054@alinoe.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 18 Jun 2007, Carlo Wood wrote: > > I suppose you mean: ... then you WILL get sensible values out of git > bisect. But, since I already did a real "git bisect" without giving it > random points, I am afraid you jumped conclusions. Hey, fair enough. That said, your "git bisect" really *does* act oddly. > However, I can easily reproduce it. From my history file I can see that I started with: > > git bisect start > git bisect bad v2.6.22-rc5 > git bisect good 99f9f3d49cbc7d944476f6fde53a77ec789ab2aa Goodie. > I wrote everything down on paper (the git id's and whether they > were good or bad), so I can reproduce it with: I can follow along, but I get *totally*different* git bisection points! > hikaru:/usr/src/kernel/git/linux-2.6>git bisect start > hikaru:/usr/src/kernel/git/linux-2.6>git bisect bad v2.6.22-rc5 > hikaru:/usr/src/kernel/git/linux-2.6>git bisect good 99f9f3d49cbc7d944476f6fde53a77ec789ab2aa > Bisecting: 128 revisions left to test after this > D include/asm-blackfin/macros.h > M scripts/package/Makefile > D scripts/package/builddeb You seem to have a modified tree! What are those modifications to the blackfin macros.h etc files? You *should* have gotten this: [torvalds@woody linux]$ git bisect start [torvalds@woody linux]$ git bisect bad v2.6.22-rc5 [torvalds@woody linux]$ git bisect good 99f9f3d49cbc7d944476f6fde53a77ec789ab2aa Bisecting: 127 revisions left to test after this [9808901b6c63a1c850b072e624c228901a9eaf10] Blackfin serial driver: ignore framing and parity errors but those are just off by one, at least (127 vs 128 commits left). > [cf68676222e54cd0a31efd968da00e65f9a0963f] Blackfin serial driver: actually implement the break_ctl() function > hikaru:/usr/src/kernel/git/linux-2.6>git bisect good > Bisecting: 111 revisions left to test after this And that's totally broken. Even if I don't use the "9808901b6" commit, and use your "cf686762" commit, I get: [torvalds@woody linux]$ git bisect good cf68676222e54cd0a31efd968da00e65f9a0963f Bisecting: 63 revisions left to test after this [aba297927d1d558c7a94548135133bdf9172708a] Merge master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6 Notice? The "127 revisions left to test after this" has become "63 revisions left to test after this". That number should be cut in half each time. And you shouldn't get some strange dirty tree indications. It might be worth it just making sure your git is ok. It really is acting oddly. What version is it? Linus