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


Re: [Xen-devel] [PATCH 2/6] xen/hvm kexec: unregister shutdown+sysrq wat

To: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH 2/6] xen/hvm kexec: unregister shutdown+sysrq watches during reboot
From: Olaf Hering <olaf@xxxxxxxxx>
Date: Thu, 28 Jul 2011 16:07:10 +0200
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxxxx>
Delivery-date: Thu, 28 Jul 2011 07:08:24 -0700
Dkim-signature: v=1; a=rsa-sha1; c=relaxed/relaxed; t=1311862050; l=507; s=domk; d=aepfle.de; h=In-Reply-To:Content-Type:MIME-Version:References:Subject:Cc:To:From: Date:X-RZG-CLASS-ID:X-RZG-AUTH; bh=3Xo5NZm9Yo1FPw4p0JFFgmwnyWU=; b=ZQIKIFtcyKsNnAGX732VwOByrAsg2Y8s8dy919VD1ddZxq6jh2oq1eeG1QkuwZ/dnC0 /hqhA65DDYVlBjFpwrjIcQEUefq2+qvGNCcURnOJvPbiwt5LCIg0SA169UbAy3YUzPS4F UgjHlBainuI+GZzNZpK5Xs7hJqA+FIHeHjA=
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <1311850379.24408.119.camel@xxxxxxxxxxxxxxxxxxxxxx>
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: <4E30A9BC0200007800073B1F@xxxxxxxxxxxxxxxxxxxx> <20110728052500.GA13940@xxxxxxxxx> <1311850379.24408.119.camel@xxxxxxxxxxxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Mutt/1.5.21.rev5535 (2011-07-01)
On Thu, Jul 28, Ian Campbell wrote:

> > Are you suggesting that there have to be ways for a domU to query the
> > state of its registered watches and shut them all down during very early
> > boot?
> Perhaps the xenstore protocol could be enhanced with a mechanism to
> clear all existing watches? A kernel could call that at start of day.

I poked around in the xenstore sources, there is appearently nothing
that can be used to shutdown all. Or would calling XS_RELEASE do the trick?


Xen-devel mailing list