From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH 6/6] C/R: Add checkpoint support to macvlan driver Date: Fri, 26 Feb 2010 04:09:52 -0800 (PST) Message-ID: <20100226.040952.67809551.davem@davemloft.net> References: <1267130595-23637-1-git-send-email-danms@us.ibm.com> <1267130595-23637-7-git-send-email-danms@us.ibm.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: containers@lists.osdl.org, benjamin.thery@bull.net, den@openvz.org, ebiederm@xmission.com, netdev@vger.kernel.org To: danms@us.ibm.com Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:38705 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935157Ab0BZMJe (ORCPT ); Fri, 26 Feb 2010 07:09:34 -0500 In-Reply-To: <1267130595-23637-7-git-send-email-danms@us.ibm.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Dan Smith Date: Thu, 25 Feb 2010 12:43:15 -0800 > This has an small hidden gotcha. Since the macvlan device is moved > completely into a container's network namespace, the init netns cannot > freeze traffic to and from it in order to migrate live network connections > by simply utilizing its netfilter tables. A helper process in the container > or something like what was recently discussed on the containers list[1] > would provide a way to do this. > > [1]: https://lists.linux-foundation.org/pipermail/containers/2010-February/023001.html > > Signed-off-by: Dan Smith Acked-by: David S. Miller