Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751993AbbEFWEn (ORCPT ); Wed, 6 May 2015 18:04:43 -0400 Received: from dresden.studentenwerk.mhn.de ([141.84.225.229]:45485 "EHLO email.studentenwerk.mhn.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751434AbbEFWEm convert rfc822-to-8bit (ORCPT ); Wed, 6 May 2015 18:04:42 -0400 From: Wolfgang Walter To: Eric Dumazet Cc: Cong Wang , Vlad Yasevich , LKML , Hannes Frederic Sowa , Linux Kernel Network Developers Subject: Re: kernel >= 4.0: crashes when using traceroute6 with isatap Date: Thu, 07 May 2015 00:04:39 +0200 Message-ID: <2723870.nq54KKjWkm@h2o.as.studentenwerk.mhn.de> User-Agent: KMail/4.14.2 (Linux/3.13.11-031311-generic; KDE/4.14.2; i686; ; ) In-Reply-To: <1430939400.14545.65.camel@edumazet-glaptop2.roam.corp.google.com> References: <1770409.aMESoOv08f@h2o.as.studentenwerk.mhn.de> <1430939400.14545.65.camel@edumazet-glaptop2.roam.corp.google.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="iso-8859-1" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1225 Lines: 41 Am Mittwoch, 6. Mai 2015, 12:10:00 schrieb Eric Dumazet: > On Wed, 2015-05-06 at 11:15 -0700, Cong Wang wrote: > > (Cc'ing netdev.) > > > > On Sat, May 2, 2015 at 5:29 AM, Wolfgang Walter wrote: > > > Am Samstag, 2. Mai 2015, 02:16:36 schrieb Wolfgang Walter: > > >> Hello, > > >> > > >> kernel 4.0 (and 4.0.1) crashes immediately when I use traceroute6 with > > >> an > > >> isatap-tunnel. > > > > > > I did some further tests. To trigger the crash you need > > > > > > * isatap-tunnel (probably any sit-tunnel will do it) > > > * raw-socket > > > * udp > > > > > > Using icmpv6 or tcp i.e. does not trigger it. > > > > Do you have a script to reproduce it? > > > > > > Thanks for the bug report! > > -- > > Please Wolfgang try to revert 32dce968dd987adfb0c00946d78dad9154f64759 > ("ipv6: Allow for partial checksums on non-ufo packets") Indeed, that fixes the problem. Regards -- Wolfgang Walter Studentenwerk M?nchen Anstalt des ?ffentlichen Rechts -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/