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Re: [Xen-devel] HVM restart issue
- To: "Yang, Xiaowei" <xiaowei.yang@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
- From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
- Date: Thu, 12 Mar 2009 03:56:27 -0700 (PDT)
- Cc:
- Delivery-date: Thu, 12 Mar 2009 03:56:54 -0700
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- List-id: Xen developer discussion <xen-devel.lists.xensource.com>
How long it takes to push changes to http://xenbits.xensource.com/xen-unstable.hg
Boris
--- On Thu, 3/12/09, Keir Fraser <keir.fraser@xxxxxxxxxxxxx> wrote:
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] HVM restart issue
To: "Yang, Xiaowei" <xiaowei.yang@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Date: Thursday, March 12, 2009, 4:31 AM
On 12/03/2009 08:15, "Yang, Xiaowei" <xiaowei.yang@xxxxxxxxx>
wrote:
> Recently I found HVM restart (destroy + start) is very slowly and the
> reason is the change to xen-hotplug-cleanup (see below).
>
> When HVM is destroyed, backend vbd/vnif drivers will not be
notified
> until /local/domain/hvm_id is removed in xenstore. udev event is then
> generated and xen-hotplug-cleanup is called. So the first xenstore-read
> will always fail and leave rest undone and xenstore unclean. Suggestion
> is to move it after backend/frontend removal.
I think 19250 has been causing problems for lots of people. I will revert it
until a better version is proposed.
-- Keir
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