From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: regression when connecting to ipv6 localhost Date: Sun, 14 Oct 2012 23:02:29 +0200 Message-ID: <1350248549.21172.17188.camel@edumazet-glaptop> References: <1350242941.21172.17023.camel@edumazet-glaptop> <1350244485.21172.17077.camel@edumazet-glaptop> <1350246314.21172.17139.camel@edumazet-glaptop> <1350246414.21172.17144.camel@edumazet-glaptop> <1350246481.21172.17147.camel@edumazet-glaptop> <1350247546.21172.17167.camel@edumazet-glaptop> <1350247678.21172.17170.camel@edumazet-glaptop> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: Jan Hinnerk Stosch Return-path: Received: from mail-ea0-f174.google.com ([209.85.215.174]:36704 "EHLO mail-ea0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754399Ab2JNVCe (ORCPT ); Sun, 14 Oct 2012 17:02:34 -0400 Received: by mail-ea0-f174.google.com with SMTP id c13so1006690eaa.19 for ; Sun, 14 Oct 2012 14:02:33 -0700 (PDT) In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: On Sun, 2012-10-14 at 22:56 +0200, Jan Hinnerk Stosch wrote: > 2012/10/14 Eric Dumazet : > > On Sun, 2012-10-14 at 22:45 +0200, Eric Dumazet wrote: > > > >> OK so IPv6 UDP frames are delivered to ntpd > >> > >> could you strace it while doing one "ntpq -p" > >> > >> strace -p 368 > >> > > > > Also please post "ip -6 addr" > > > > > > ip -6 addr gives: > 1: lo: mtu 16436 > inet6 ::1/128 scope host > valid_lft forever preferred_lft forever > 2: eth0: mtu 1500 qlen 1000 > inet6 fe80::922b:34ff:fe33:c292/64 scope link > valid_lft forever preferred_lft forever > > And the output of "strace ntpq -p" is attached in file "ntpq-p". > > I also did a tcpdump earlier this day as told in the bugtracker. Find > the parts containing "ntpd" attached in file "tcpdump". I already got these files, thank you I asked a strace of the ntpd daemon, since we now know frames are delivered to the application. I want to check what ntpd does of these frames, since apparently it gives no answer.