linux-kernel - Re: [Bonding-devel] 2.6.29 regression? Bonding tied to IPV6 in 29-rc5

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Message-ID: <13225.1234901283@death.nxdomain.ibm.com>
Date:	Tue, 17 Feb 2009 12:08:03 -0800
From:	Jay Vosburgh <fubar@...ibm.com>
To:	Andrey Borzenkov <arvidjaar@...l.ru>
cc:	"Rafael J. Wysocki" <rjw@...k.pl>, brian.haley@...com,
	netdev@...r.kernel.org,
	"J.A. Magallón" <jamagallon@....com>,
	bonding-devel@...ts.sourceforge.net,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [Bonding-devel] 2.6.29 regression? Bonding tied to IPV6 in 29-rc5


Andrey Borzenkov <arvidjaar@...l.ru> wrote:

>> If IPv6 is disable in kernel config bonding loads. But I think it is
>> 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 <brian.haley@...com>
>Date:   Tue Nov 4 17:51:14 2008 -0800
>
>    bonding: send IPv6 neighbor advertisement on failover

	I'm not really sure how to work around this.  If bonding is
compiled with CONFIG_IPV6, then the IPv6 support is compiled in, and
bonding will need the ipv6 module loaded to resolve its symbols.

	The simple answer (don't turn on CONFIG_IPV6) isn't really
useful for the common case of distro kernels, which will generally have
CONFIG_IPV6 enabled.

	-J

---
	-Jay Vosburgh, IBM Linux Technology Center, fubar@...ibm.com
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