From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Backlund Subject: Re: 2.6.29 regression? Bonding tied to IPV6 in 29-rc5 Date: Tue, 17 Feb 2009 22:56:55 +0200 Message-ID: <499B2497.50807@mandriva.org> References: <20090217095232.5da06b9f@werewolf.home> <200902172001.41804.arvidjaar@mail.ru> <200902172117.22671.arvidjaar@mail.ru> <499B19AF.1000003@hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Andrey Borzenkov , "Rafael J. Wysocki" , netdev@vger.kernel.org, bonding-devel@lists.sourceforge.net, =?ISO-8859-1?Q?=22J=2EA=2E_Magall=F3n=22?= , Linux Kernel Mailing List To: Brian Haley Return-path: Received: from mbox2.netikka.net ([213.250.81.203]:52864 "EHLO mbox2.netikka.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751826AbZBQVWA (ORCPT ); Tue, 17 Feb 2009 16:22:00 -0500 In-Reply-To: <499B19AF.1000003@hp.com> Sender: netdev-owner@vger.kernel.org List-ID: Brian Haley skrev: > Andrey Borzenkov wrote: >> On 17 of February 2009 20:01:38 Andrey Borzenkov wrote: >>> Forward to bonding and netdev >>> >>> On 17 of February 2009 11:52:32 J.A. Magall=F3n wrote: >>>> Hi all... >>>> >>>> Don't know if this is specific for -rc5, I have jumped from 28.4 t= o >>>> 29-rc5. In this latest kernel, I can not install 'bonding' module >>>> if 'ipv6' is disabled to load via modprobe.conf: >>>> >>>> install ipv6 /bin/true >>>> >>>> Trying bonding gives this dmesg: >>>> >>>> bonding: Unknown symbol ndisc_build_skb >>>> bonding: Unknown symbol in6_dev_finish_destroy >>>> bonding: Unknown symbol ndisc_send_skb >>>> bonding: Unknown symbol unregister_inet6addr_notifier >>>> bonding: Unknown symbol register_inet6addr_notifier >>>> >>>> Commenting the line in modprobe.conf makes things smooth again. >>>> We can not disable ipv6 anymore ? >>> If IPv6 is disable in kernel config bonding loads. But I think it i= s >>> regression, it should be possible to disable IPv6 if not required. >> >> This hard dependency was apparently introduced by this commit: >> >> commit 305d552accae6afb859c493ebc7d98ca3371dae2 >> Author: Brian Haley >> Date: Tue Nov 4 17:51:14 2008 -0800 >> >> bonding: send IPv6 neighbor advertisement on failover >=20 > I initially had bonding IPv6 support as a Kconfig option, but it was=20 > decided it would be cleaner if it just got built-in whenever CONFIG_I= PV6=20 > was set like SCTP, with the assumption you might want it. >=20 > Is it a common configuration to not allow a module to load like you'r= e=20 > doing in modprobe.conf? I don't know how hard it would be to rip thi= s=20 Yep. > out into it's own bonding_ipv6.ko module, simply turning-off CONFIG_I= PV6=20 > seems better. That's not an option for distro kernels ... -- Thomas