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 C8C98C4360C for ; Thu, 3 Oct 2019 02:42:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9C616222C0 for ; Thu, 3 Oct 2019 02:42:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="GgjCe+UJ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727762AbfJCCmp (ORCPT ); Wed, 2 Oct 2019 22:42:45 -0400 Received: from mail-io1-f65.google.com ([209.85.166.65]:34349 "EHLO mail-io1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725860AbfJCCmp (ORCPT ); Wed, 2 Oct 2019 22:42:45 -0400 Received: by mail-io1-f65.google.com with SMTP id q1so2129259ion.1 for ; Wed, 02 Oct 2019 19:42:43 -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=I9Hc25c1CIJ8bV6Dfe+zt6ovN8RaKMdn58fNYcXa+Kc=; b=GgjCe+UJzGIGxKFSSpNz7erd5Ep6zFfB51BD9QieafK/oV8KPlhO5LmgNseEvxtHbR FKikjJpemBsQhybQ4IXWxz8N4WbEENdQLRukVtVc2RVVg32ZQLcyWtZhh8nrnxCU54jd T+H1MyjrHmR0QYelONMrL8uQF7/O0Zds8Ke3RO7+Xq5hIzcFMoIKNYcIhktDxng0zVX+ 6ZSoVpYKze7OVTSmk31jRLBEp74Wv4xDQ2TxQmdQSeOOZe/UquROOL9zAVKtkUE7v2fQ Pvgt8bHiGKubpaoF3FOv8AJ5UGs5PKMEWuWAE/H5zDkF9E7eqXvob2nDmzChfgS0AFfd yxFQ== 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=I9Hc25c1CIJ8bV6Dfe+zt6ovN8RaKMdn58fNYcXa+Kc=; b=Kbair0rs+OOkRmb+kNRiYkbN47iQUM+WAmqoel9mQEbLx0MdUM9gG8Gxp1/PfMptfd K5Jhnvf777ASeN94USvwE2+2h3oEZoKcA/Lh7wMrEaFMwsfG619N5A27Lrx+HbbQ8lyY +SoSwokEbyNvRmN6Zbv7zwddauXYaIyvlorsjjKEHbc6lS/0zT498461bv1OXYMj2D0Q eZge2Y1+t8dfp47B6sspEvavBRbDWQJ46Qqfx8itL5ZVITfdmmqpKe8OdfNNqj4EEl9g 0vK8HFLQDQfxti6gHfJs0+2uEsejzcGdYvtzcHqT8LIUwPTOp87QiK+8FViGiGlCHhHU 84RQ== X-Gm-Message-State: APjAAAVpBJgLF/+1GNV+6UNpnXOw3OyWUDtA0l4UeQCFBaN9FEou97uf Lhx43jx6aZlN/42Zpk7hKAs= X-Google-Smtp-Source: APXvYqxcZZKF4pa5WfzDx51b/dACwNj5VLxcIm4nq8P+ZAuKFVkVn2TUqCtYZsEuWXR4W3IBELAf+g== X-Received: by 2002:a6b:b213:: with SMTP id b19mr5998203iof.58.1570070563167; Wed, 02 Oct 2019 19:42:43 -0700 (PDT) Received: from [10.230.159.14] ([73.95.134.170]) by smtp.googlemail.com with ESMTPSA id u124sm535423ioe.63.2019.10.02.19.42.41 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 02 Oct 2019 19:42:42 -0700 (PDT) Subject: Re: [PATCH net v2] ipv6: Handle race in addrconf_dad_work To: Eric Dumazet , 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> <8d13d82c-6a91-1434-f1af-a2f39ecadbfb@gmail.com> <3dc05826-4661-8a8e-0c15-1a711ec84d07@gmail.com> <45e62fee-1580-4c5d-7cac-5f0db935fa9e@gmail.com> <7bd928cb-1abf-bbae-e1db-505788254e5b@gmail.com> <6b74af81-d12d-6abd-fd4f-5c1e758fdde7@gmail.com> From: David Ahern Message-ID: <0a2a936a-9b20-be61-2301-dfe83e41e605@gmail.com> Date: Wed, 2 Oct 2019 20:42:28 -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: 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 10/2/19 6:36 PM, Eric Dumazet wrote: > > > On 10/2/19 5:10 PM, David Ahern wrote: >> On 10/2/19 4:36 PM, Eric Dumazet wrote: >>> This might be related to a use of a bonding device, with a mlx4 slave. >>> >> >> does it only happen with bonds? > > All my hosts have bonds, some are just fine with your patch, but others are not. I have a setup now where the bond is reliably showing tentative for the address. Something to use to debug this weird little side effect.