This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


[Xen-devel] Re: lost gARP after live migration

To: Laszlo Ersek <lersek@xxxxxxxxxx>
Subject: [Xen-devel] Re: lost gARP after live migration
From: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Date: Tue, 28 Jun 2011 15:03:08 +0200
Cc: netdev@xxxxxxxxxxxxxxx, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Delivery-date: Tue, 28 Jun 2011 06:07:06 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <4E09D0A0.1080107@xxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <4E09D0A0.1080107@xxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20110428 Fedora/3.1.10-1.fc15 Mnenhy/0.8.3 Thunderbird/3.1.10
On 06/28/2011 03:01 PM, Laszlo Ersek wrote:
- (Paolo's idea:) watching the "hotplug-status" xenstore node and
sending a single gARP when the watch fires with "connected". This node
belongs to the backend xenstore subtree, thus watching it from the guest
doesn't please the architecture astronaut in me.

Note that watching the backend and reading its information is quite common. In fact, that's how the state of the backend is observed in the first place. Of course you cannot write to the backend tree, but you do not have to do that.


Xen-devel mailing list

<Prev in Thread] Current Thread [Next in Thread>