From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DB027C83001 for ; Tue, 28 Apr 2020 00:28:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A8DD42072A for ; Tue, 28 Apr 2020 00:28:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gemtalksystems-com.20150623.gappssmtp.com header.i=@gemtalksystems-com.20150623.gappssmtp.com header.b="h0WMEEaP" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726337AbgD1A23 (ORCPT ); Mon, 27 Apr 2020 20:28:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43464 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726016AbgD1A23 (ORCPT ); Mon, 27 Apr 2020 20:28:29 -0400 Received: from mail-pl1-x632.google.com (mail-pl1-x632.google.com [IPv6:2607:f8b0:4864:20::632]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 512D3C0610D5 for ; Mon, 27 Apr 2020 17:28:29 -0700 (PDT) Received: by mail-pl1-x632.google.com with SMTP id s10so7653309plr.1 for ; Mon, 27 Apr 2020 17:28:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gemtalksystems-com.20150623.gappssmtp.com; s=20150623; h=to:from:subject:cc:message-id:date:user-agent:mime-version :content-transfer-encoding:content-language; bh=U8dKgjCVkcUn22BhcqSZeqZtB79VlJBou25JdmTV6Ws=; b=h0WMEEaP4C3ky/4nWtx1+H4ygBop3dprUIA4fVGs5tVEHWqZ7G+/oOLWJEeOZ6LX45 3K5mFaNH7E+6p2zE3Bv5jByoGMzSXZsL8yyf3deVbxLHQO7Lw5XvAMWVzfJH9T0gZsev Oc257xS3W4RoceNnQYt5BrBzvXY22eMD7uGYO1wC/nFilUCyUwCK1KxUjcJsz1oAHDGt nJB+kei1B9QzvyabQmAdd3nWVthoBeBkNOpwA287UaTOqJNiQ6ImhnoYdiDIkn0qWxXG FKcAQApJ27nBhJK1Y9VvJkH8bN8Y90FZSINOHbtSgebjglaxJc55odwXjvOowsi/suhe TdXw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:to:from:subject:cc:message-id:date:user-agent :mime-version:content-transfer-encoding:content-language; bh=U8dKgjCVkcUn22BhcqSZeqZtB79VlJBou25JdmTV6Ws=; b=rcLIIBni91Cho5Kv5HVlmvQEoRvXic0xulQyuFEfbvhIT+L7HWOGUn2DdJ93eo8k1u Pga5cO5u3V/2Oqy6WbRBDHeWk+zSpDQyPg6SZut1KWD+CaEYMVWw6RGXJAWvtEW2KDzR X75QBLveAFvySWzgNMUiiO5nlOu8As3maaF00TGezhUhaKUn92j3HeHleho+JoZci545 VpA3EdfmmrCcnThGK0rXvTNyrzkbRABXzYtGCeK8x41HVGe5Vw7pIje5rO64Zw9fxeR+ GRLJzJFHoDvHO9Vad0z3/36dHai/HV7Ob3odbFt5429n5FlU316+LDpQAbd/5mpgbArM 9t9Q== X-Gm-Message-State: AGi0PubpvRYblEXCsB37nGFW74bs7qS7s7kKlXSlDqdmc6IjNTTFySfX 3ZJuIkZvWhnVdWTU+Q56dexDAA== X-Google-Smtp-Source: APiQypIomVFt4Dmfo5bTNOO3gAIxfK/pdwN6se1y0DsJUrou/Ti/wRsiv6wiknxqEziNZ67hjP4T+A== X-Received: by 2002:a17:90a:343:: with SMTP id 3mr1658964pjf.178.1588033708562; Mon, 27 Apr 2020 17:28:28 -0700 (PDT) Received: from [10.94.156.50] (gateway.gemtalksystems.com. [50.234.234.161]) by smtp.gmail.com with ESMTPSA id n23sm399457pjq.18.2020.04.27.17.28.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 27 Apr 2020 17:28:28 -0700 (PDT) To: git@vger.kernel.org From: Dale Henrichs Subject: all memory consuming `git diff-tree` bug Cc: Kurt Kilpela Message-ID: <5e00fe77-3f72-0729-2b30-9f4f98a28b1c@gemtalksystems.com> Date: Mon, 27 Apr 2020 17:28:26 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org When I execute the follow set of commands, the `git diff-tree` command will go on to consume all 30G of ram and then 30G of swap on a system running Ubuntu 18.04. git clone git@github.com:GemTalk/Rowan.git cd Rowan git checkout c70f69b50dc90c0a6207a5aa36705b71b59b92b3 git diff-tree -r -p --textconv --submodule -C --cc --no-commit-id -U3 --root c70f69b50dc90c0a6207a5aa36705b71b59b92b3 I'm running git 2.26.2 (built from source). The git command line was generated by gitk. It originally showed up in 2.17.1, but reproduced in the latest version of git. Clicking nearby commits (ccffec29f977f9324e8120bf550c745189e76f70 and 8b08cec96bbb74b54046abbdb49a5bbd2f82fc3b finish almost immediately, so there seems to be something special about that particular commit. Dale