From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-4.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_NONE shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id BD7F01F462 for ; Fri, 31 May 2019 11:41:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726331AbfEaLlr (ORCPT ); Fri, 31 May 2019 07:41:47 -0400 Received: from smtp-sh2.infomaniak.ch ([128.65.195.6]:37415 "EHLO smtp-sh2.infomaniak.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726158AbfEaLlr (ORCPT ); Fri, 31 May 2019 07:41:47 -0400 X-Greylist: delayed 618 seconds by postgrey-1.27 at vger.kernel.org; Fri, 31 May 2019 07:41:45 EDT Received: from smtp6.infomaniak.ch (smtp6.infomaniak.ch [83.166.132.19]) by smtp-sh.infomaniak.ch (8.14.5/8.14.5) with ESMTP id x4VBVPiW029173 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Fri, 31 May 2019 13:31:26 +0200 Received: from [IPv6:2a01:cb00:807:e500:fab5:24b3:6e93:219] (2a01cb000807e500fab524b36e930219.ipv6.abo.wanadoo.fr [IPv6:2a01:cb00:807:e500:fab5:24b3:6e93:219]) (authenticated bits=0) by smtp6.infomaniak.ch (8.14.5/8.14.5) with ESMTP id x4VBVPCs006459 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO) for ; Fri, 31 May 2019 13:31:25 +0200 To: git@vger.kernel.org From: David Subject: Severe Regression in Git 1.21.0 -- not receiving any data Message-ID: <04a82e31-2292-ef73-98c5-b9a5ff28e000@david-kremer.fr> Date: Fri, 31 May 2019 13:31:25 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: fr-classic X-Antivirus: Dr.Web (R) for Unix mail servers drweb plugin ver.6.0.2.8 X-Antivirus-Code: 0x100000 Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org # Summary I was trying to clone the AOSP source tree (Android Open Source Project) and I finally was able to formally identify what seems to be a severe regression (one that is blocking usage) in the last version of git (2.21.0). # Steps to reproduce The AOSP projects recommend to use ubuntu 14.04 as its build platform. The git version for this distro is : ``` root@eb57f366840e:/android# git --version git version 1.9.1 ``` In a docker image for this OS, I am able to execute: ``` root@eb57f366840e:~# git clone https://android.googlesource.com/platform/manifest Cloning into 'manifest'... remote: Sending approximately 39.94 MiB ... remote: Counting objects: 852, done remote: Finding sources: 100% (27/27) remote: Total 16017 (delta 4968), reused 16017 (delta 4968) Receiving objects: 100% (16017/16017), 39.65 MiB | 9.04 MiB/s, done. Resolving deltas: 100% (4968/4968), done. Checking connectivity... done. ``` Now, on my local Archlinux Box, the git version is 2.21.0 (latest). The same command: ``` git clone https://android.googlesource.com/platform/manifest ``` Is launching a single thread that uses 100% of one CPU core FOREVER, until a timeout arises after like 40 minutes (the remote hung up unexpectedly). Someone on the #git channel (irc.freenode.net) was able to reproduce the exact same behaviour. I must add that this of course arises only with the repo I mention in this email (github repositories are just fine). So probably a mismatch in protocol between git server/client ? Anyways, I'm far from having the skills to fix that thing. I hope this report is useful, and in any case, I would like to know about the possible outcomes of this report. I would be actually very surprised if someone did not notice that before, given that the latest git version is from february, but I can try anyway :) Cheers, David