From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-3.1 required=3.0 tests=AWL,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_HI,T_RP_MATCHES_RCVD shortcircuit=no autolearn=ham autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id 319C41F404 for ; Fri, 9 Feb 2018 19:51:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750961AbeBITvz (ORCPT ); Fri, 9 Feb 2018 14:51:55 -0500 Received: from cpanel2.indieserve.net ([199.212.143.6]:50357 "EHLO cpanel2.indieserve.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750832AbeBITvy (ORCPT ); Fri, 9 Feb 2018 14:51:54 -0500 Received: from cpec03f0ed08c7f-cm68b6fcf980b0.cpe.net.cable.rogers.com ([174.118.92.171]:47380 helo=localhost.localdomain) by cpanel2.indieserve.net with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89_1) (envelope-from ) id 1ekEi9-0001Qw-KK; Fri, 09 Feb 2018 14:51:53 -0500 Date: Fri, 9 Feb 2018 14:51:51 -0500 (EST) From: "Robert P. J. Day" X-X-Sender: rpjday@localhost.localdomain To: Junio C Hamano cc: Git Mailing list Subject: Re: totally confused as to what "git bisect skip" is supposed to do In-Reply-To: Message-ID: References: User-Agent: Alpine 2.21 (LFD 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - cpanel2.indieserve.net X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - crashcourse.ca X-Get-Message-Sender-Via: cpanel2.indieserve.net: authenticated_id: rpjday+crashcourse.ca/only user confirmed/virtual account not confirmed X-Authenticated-Sender: cpanel2.indieserve.net: rpjday@crashcourse.ca X-Source: X-Source-Args: X-Source-Dir: Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org On Fri, 9 Feb 2018, Junio C Hamano wrote: > "Robert P. J. Day" writes: > > > i'm confused ... why, after skipping a good chunk in the > > interval [v4.13,v4.14], do i still have exactly 7300 revisions to > > bisect? what am i so hopelessly misunderstanding here? > > Are you really "skipping" a chunk in the interval? i don't know ... am i? how should i interpret the man page? > I thought that "git bisect skip" is a way for you to respond, when > "git bisect" gave you a commit to test, saying "sorry, I cannot test > that exact version, please offer me something else to test". And > each time you say that, you are not narrowing the search space in > any way, so it is understandable that the number of candidate bad > commits will not decrease. i caught that part of the man page, but i'm trying to understand what i'm reading here: https://blog.smart.ly/2015/02/03/git-bisect-debugging-with-feature-branches/ particularly this suggestion: $ git bisect start master 75369f4a4c026772242368d870872562a3b693cb $ for rev in $(git rev-list 75369f4a4c026772242368d870872562a3b693cb..master --merges --first-parent); do > git rev-list $rev^2 --not $rev^ > done | xargs git bisect skip my interpretation of that page is how, after starting a bisection, one can use "git bisect skip" to explicitly disqualify a sizable number of commits from consideration, speeding up the subsequent bisection. if that's not what that web page is describing, then what *is* it talking about? rday