From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756788Ab1KRMEe (ORCPT ); Fri, 18 Nov 2011 07:04:34 -0500 Received: from alternativer.internetendpunkt.de ([88.198.24.89]:55477 "EHLO geheimer.internetendpunkt.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754438Ab1KRMEd (ORCPT ); Fri, 18 Nov 2011 07:04:33 -0500 Date: Fri, 18 Nov 2011 13:04:30 +0100 From: Hagen Paul Pfeifer To: Jinxin Zheng Cc: gerrit@erg.abdn.ac.uk, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: ipv4 udplite broken in >=linux-3.0 ? Message-ID: <20111118120430.GG3317@hell> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Key-Id: 98350C22 X-Key-Fingerprint: 490F 557B 6C48 6D7E 5706 2EA2 4A22 8D45 9835 0C22 X-GPG-Key: gpg --recv-keys --keyserver wwwkeys.eu.pgp.net 98350C22 User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Jinxin Zheng | 2011-11-18 12:09:25 [+0800]: >I don't know how to debug udplite. Can any one of you give me a tip on >how to get more debug info, then I can do further test and provide >with it? net-next works for me: $ sudo aptitude install netsend $ sudo tcpdump -n -ttt -vv -i lo > pcap.trace & $ netsend udplite receive & $ netsend udplite transmit /etc/fstab 127.0.0.1 $ cat pcap.trace 00:00:00.000000 IP (tos 0x0, ttl 64, id 30602, offset 0, flags [DF], proto unknown (136), length 40) 127.0.0.1 > 127.0.0.1: udplite 20 00:00:00.000074 IP (tos 0x0, ttl 64, id 30603, offset 0, flags [DF], proto unknown (136), length 1125) 127.0.0.1 > 127.0.0.1: udplite 1105 Kernel version? What is the output of strace?