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=-2.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 0A109C32792 for ; Thu, 3 Oct 2019 19:29:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D63F420873 for ; Thu, 3 Oct 2019 19:29:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="SKwh4Goe" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731523AbfJCT3a (ORCPT ); Thu, 3 Oct 2019 15:29:30 -0400 Received: from mail-pf1-f193.google.com ([209.85.210.193]:44615 "EHLO mail-pf1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726677AbfJCT3a (ORCPT ); Thu, 3 Oct 2019 15:29:30 -0400 Received: by mail-pf1-f193.google.com with SMTP id q21so2349204pfn.11 for ; Thu, 03 Oct 2019 12:29:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=g4UL4onqz5pYceZnevRFUIiTmXXOG8WGHDes2a6KY54=; b=SKwh4Goersvbgy1coE2ebtTcg3EwuZe1idqnpjcODI5Z7Fbz5idRPETS4OoN1FNoh0 40/3SX9h6UP8f869geDU+Qw07nacJlHIqkX4kb3f+7YOTZZ3aRcwEgvd1+41YI6l0xJW PoEUTwJdG1XKxcvO7nITqG/Y8rCgeAcO4Es1XGM9UTk/7kvaOZ02irT9xVM9VmH2TFm/ pWjdwgJhZJZu/H4ihgskZlcj0ABR81woD1mCXfJ0bvt/h+IO1XkvWzTnwZKrSStCPZBP 6gm5yJAZVN3EvFbfKaxqPgMrw5mFj4rAgAvnowdHK6sGhhyjRF2p9tTM68Omq4aOmRRl b1EA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=g4UL4onqz5pYceZnevRFUIiTmXXOG8WGHDes2a6KY54=; b=Az56jAJYx8h3+/vlGyXcBmK10H0O609rEMQ/3z1uHa6ld5ndb108ApUfWWkI8tP1nI tyEMRzBSa/7AnaEfeSQ5tEB4ltowv+/yw6CHgI1jIjwHXA5ouIr38K9D91uYeGSL2Fnb RruOXLXxlkdAJk7V/dbec+XqNraKzfqilCN7cShITVj5k3k/uaFyNTjOiWgTut7fgtoS rF5r/vOfMszKCXdkiUqCmWPgUaQa6TFH8Bp70Geux6ydW+YqF2fOabuNdP1JW1UT17oZ RXTN1X3VYRZ0lQUA0Uj+RHpJN1cx69And9jI1majjOYtrpRqO5iHR5G8YQehoAm40s5r xC8Q== X-Gm-Message-State: APjAAAWvdfiuw5W+d8uqm+MKJPVxORQx+r1HkUWNUcw6hq8Wtyj5ap7p 22Nm1H1H1eQCmmEDNaj169E= X-Google-Smtp-Source: APXvYqz87T0yP6XUsSVRZCZf4dSaeFPNpxBlIztpSOW3jmwxnhJejgIb1ZHmYGyFM9fOpDxo5Gnqbg== X-Received: by 2002:a65:6105:: with SMTP id z5mr11191151pgu.241.1570130968130; Thu, 03 Oct 2019 12:29:28 -0700 (PDT) Received: from [172.27.227.189] ([216.129.126.118]) by smtp.googlemail.com with ESMTPSA id w5sm3850381pfn.96.2019.10.03.12.29.25 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 03 Oct 2019 12:29:26 -0700 (PDT) Subject: Re: [PATCH net v2] ipv6: Handle race in addrconf_dad_work To: Eric Dumazet , David Ahern , davem@davemloft.net, jakub.kicinski@netronome.com Cc: netdev@vger.kernel.org, rajendra.dendukuri@broadcom.com References: <20191001032834.5330-1-dsahern@kernel.org> <1ab3e0d0-fb37-d367-fd5f-c6b3262b6583@gmail.com> <18c18892-3f1c-6eb8-abbb-00fd6c9c64d3@gmail.com> <146a2f8a-8ee9-65f3-1013-ef60a96aa27b@gmail.com> <4c896029-882f-1a4f-c0cc-4553a9429da3@gmail.com> <43e2c04f-a601-3363-1f98-26fd007be960@gmail.com> <0471f2fd-c472-34c1-5dab-0aa01c837322@gmail.com> From: David Ahern Message-ID: <4613d57f-9396-7469-51fd-c7499805e75f@gmail.com> Date: Thu, 3 Oct 2019 13:29:23 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <0471f2fd-c472-34c1-5dab-0aa01c837322@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 10/3/19 11:19 AM, Eric Dumazet wrote: > > On 10/3/19 9:32 AM, Eric Dumazet wrote: >> Still no luck for me :/ >> > One of the failing test was : > > unshare -n > ./traceroute_test.sh -I icmp > thanks for the test. I need to chase down a few more code paths, but I am thinking the proper next step is to revert the patch and I will come up with an alternative solution for the problem Rajendra reported.