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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>
Subject: Re: [Xen-devel] HVM restart issue
From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
Date: Thu, 12 Mar 2009 06:02:56 -0700 (PDT)
Cc:
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I've just made a fresh clone of "xen unstable" with 19317 changesets.
19314 resolves the issue with hotplug scripts.
Please advise, how to add the most recent ,went in, without recreating
folder xen-unstable.hg and complete new clone.

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: "bderzhavets@xxxxxxxxx" <bderzhavets@xxxxxxxxx>, "Yang, Xiaowei" <xiaowei.yang@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Date: Thursday, March 12, 2009, 7:18 AM

That one is there already.

-- Keir

On 12/03/2009 10:56, "Boris Derzhavets" <bderzhavets@xxxxxxxxx>
wrote:

> 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
>>
>>
>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>> http://lists.xensource.com/xen-devel
>
>



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