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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,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 A447AC04AB4 for ; Tue, 14 May 2019 14:33:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7FD162085A for ; Tue, 14 May 2019 14:33:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726107AbfENOdY (ORCPT ); Tue, 14 May 2019 10:33:24 -0400 Received: from mx1.redhat.com ([209.132.183.28]:39036 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725928AbfENOdY (ORCPT ); Tue, 14 May 2019 10:33:24 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 1351C307C94F; Tue, 14 May 2019 14:33:16 +0000 (UTC) Received: from localhost (ovpn-200-27.brq.redhat.com [10.40.200.27]) by smtp.corp.redhat.com (Postfix) with ESMTPS id E24155C5BB; Tue, 14 May 2019 14:33:12 +0000 (UTC) Date: Tue, 14 May 2019 16:33:08 +0200 From: Stefano Brivio To: Mikael Magnusson Cc: Wei Wang , David Ahern , Linux Kernel Network Developers , Martin KaFai Lau Subject: Re: IPv6 PMTU discovery fails with source-specific routing Message-ID: <20190514163308.2f870f27@redhat.com> In-Reply-To: References: <71e7331f-d528-430e-f880-e995ff53d362@lists.m7n.se> <2667a075-7a51-d1e0-c4e7-cf0d011784b9@gmail.com> Organization: Red Hat MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.46]); Tue, 14 May 2019 14:33:24 +0000 (UTC) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Mon, 13 May 2019 23:12:31 -0700 Wei Wang wrote: > Thanks Mikael for reporting this issue. And thanks David for the bisection. > Let me spend some time to reproduce it and see what is going on. Mikael, by the way, once this is sorted out, it would be nice if you could add your test as a case in tools/testing/selftests/net/pmtu.sh -- you could probably reuse all the setup parts that are already implemented there. -- Stefano