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=-5.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS 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 E6EDAC47254 for ; Fri, 1 May 2020 22:13:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B05B52166E for ; Fri, 1 May 2020 22:13:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=ttaylorr-com.20150623.gappssmtp.com header.i=@ttaylorr-com.20150623.gappssmtp.com header.b="0zdv1Q/5" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726886AbgEAWNg (ORCPT ); Fri, 1 May 2020 18:13:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48404 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726488AbgEAWNg (ORCPT ); Fri, 1 May 2020 18:13:36 -0400 Received: from mail-pf1-x436.google.com (mail-pf1-x436.google.com [IPv6:2607:f8b0:4864:20::436]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CBBA0C061A0C for ; Fri, 1 May 2020 15:13:34 -0700 (PDT) Received: by mail-pf1-x436.google.com with SMTP id w65so2142272pfc.12 for ; Fri, 01 May 2020 15:13:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ttaylorr-com.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=giqiie9QcagB/WH0BWazSlXPTrNynsgnVBOwSOlGRwM=; b=0zdv1Q/56WP9NVx40Y+bcE+fyCbTBNOTtRliPES0FA0j3RDc3e/L7WcMBPq/zbdXjM o5y/8TcDdFkUfa2H/WYF9ZnoWHF2HcXwhUPMmItl2WhXLWxtoKYoyY6pEkjVUXSoU7Ex DQBuaU5BBKGAnVWfqo+Uu+1B/cWKrmjqIWCKcUooSJKUGPfRsYA8ttSnXAzm9Bl/wrct dFdlZvxdFrqYozsj5aBIeVLmJIInZ0w5omnhcUViBYVLF6VQCmToJcUMxqw48tTVe5OO UqGSyZyt+z8zKqXAkPr/Tg+KSE1vH3SWSAesC0dktEd8EyqfRNJQBjzFEVGVd0K/k6jS t8RA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=giqiie9QcagB/WH0BWazSlXPTrNynsgnVBOwSOlGRwM=; b=cth45b2gbosU0Q2O8gYZOCa31Q57bANdgSyBHbbJf10kb3AuRQG0wJwauzFMAVnyg2 JvKJcGupxbct8Ih3Ucd97ntJJuJFKxADY3+pIl/8QzsbBnyJsU8Ty8dSuwff1Db2DbQm IWYdylsYcsp39yHFfRUGWRms6P7aYa6xAAuvFZGic8oLENM3nggtzHGjXX7LM65rPNJH CvYqHRtMP/wkyCtqWFVGV7H2duJ3R9pjNTzBYdXukIHpz7kBPd45xf5daGZuDBHUju7K QMCZhjTsvd1QKB2+RNL5Qm4+dBB/+bBDNATD1cYCfyTgQDQFALvsvw6YG5st/Y7qpeIV 4Nqg== X-Gm-Message-State: AGi0PubNqKSQBe4dLNTp8LO/QMUddYGIku4q9SoXQLUgD5Eo5mv8LN7e /CSfqFGSWUZB7DgaJ6yCWHbJDA== X-Google-Smtp-Source: APiQypIsfmY0c8ZkJJmmOeqA2mLfml+/yt6p9QfFdRY2gCiHdCjhZxKmAL86kXliedYlTB7edb57Jw== X-Received: by 2002:a62:81c6:: with SMTP id t189mr6038322pfd.174.1588371213935; Fri, 01 May 2020 15:13:33 -0700 (PDT) Received: from localhost ([8.44.146.30]) by smtp.gmail.com with ESMTPSA id fy21sm528160pjb.25.2020.05.01.15.13.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 01 May 2020 15:13:33 -0700 (PDT) Date: Fri, 1 May 2020 16:13:32 -0600 From: Taylor Blau To: Son Luong Ngoc Cc: Taylor Blau , git , Junio C Hamano Subject: Re: Seg Fault on git fetch with fetch.negotiationAlgorithm=skipping Message-ID: <20200501221332.GB41612@syl.local> References: <450D5CC7-113A-40D8-9CD4-53786198526D@gmail.com> <20200430202014.GB2014@syl.local> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org On Fri, May 01, 2020 at 10:13:43AM +0200, Son Luong Ngoc wrote: > Hi Taylor, > > > On Apr 30, 2020, at 22:20, Taylor Blau wrote: > > > > Are you able to share a core file? If not, it would be very helpful for > > you to 'git fast-export --anonymize ...' and see if you can reproduce > > the problem on an anonymized copy of your repository. > > I played a bit with --anonymized yesterday but export/import is slow and I still need to review > the history to see whether it could be released. > > It might take more time than just a few days. That's OK. Please let us know when you have it by responding in the sub-thread here, and I will be happy to take a look. > > I can speculate about the cause of the crash from your strace above, but > > a core file would be more helpful. > > I have added perf trace2 in https://gist.github.com/sluongng/e48327cc911c617ed2ef8578acc2ea34#file-perf-trace2-L52 > (git version is 2.26.2) > > I think this trace is a lot cleared than the strace log. > > > Thanks, > > Taylor > > Cheers, > Son Luong. Thanks, Taylor