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RE: [Xen-devel] VMX status report. Xen: #17917 & Xen0: #583 -- no new is

To: "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx>, "Li, Haicheng" <haicheng.li@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] VMX status report. Xen: #17917 & Xen0: #583 -- no new issue
From: "Shan, Haitao" <haitao.shan@xxxxxxxxx>
Date: Wed, 2 Jul 2008 08:57:46 +0800
Cc: "Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx>, "Han, Weidong" <weidong.han@xxxxxxxxx>
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Thread-topic: [Xen-devel] VMX status report. Xen: #17917 & Xen0: #583 -- no new issue
Yes, the bug shows at cpu hot-plug patch. What I mean is that the root cause is 
some improper handling of MSI/MSI-X on domain-destruction path.

Shan Haitao

-----Original Message-----
From: Keir Fraser [mailto:keir.fraser@xxxxxxxxxxxxx] 
Sent: 2008年7月1日 20:44
To: Shan, Haitao; Li, Haicheng; xen-devel@xxxxxxxxxxxxxxxxxxx
Cc: Jiang, Yunhong; Han, Weidong
Subject: Re: [Xen-devel] VMX status report. Xen: #17917 & Xen0: #583 -- no new 
issue

Well actually this is not on the domain-destruction path -- it's on the cpu
hotplug path. But anyhow if you have some bugfixes in the pipeline, that's
great!

 -- Keir

On 1/7/08 13:37, "Shan, Haitao" <haitao.shan@xxxxxxxxx> wrote:

> Yes. It is caused by improper MSI cleaning up code for domain-destroy code
> path. I have made a patch and basically it can solve the problem. I will test
> it more and send it out tomorrow.
> 
> Shan Haitao
> 
> -----Original Message-----
> From: Keir Fraser [mailto:keir.fraser@xxxxxxxxxxxxx]
> Sent: 2008年7月1日 17:57
> To: Li, Haicheng; xen-devel@xxxxxxxxxxxxxxxxxxx
> Cc: Jiang, Yunhong; Han, Weidong; Shan, Haitao
> Subject: Re: [Xen-devel] VMX status report. Xen: #17917 & Xen0: #583 -- no new
> issue
> 
> On 1/7/08 10:24, "Li, Haicheng" <haicheng.li@xxxxxxxxx> wrote:
> 
>> 2. Xen HV crashes while doing dom0 S3.
>> http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1279
> 
> I expect this would crash with host S5 as well (i.e., /sbin/poweroff in
> dom0). The crash is clearly within MSI-related code, so one of the
> developers of those patches should take a look: e.g., Yunhong Jiang, Haitao
> Shan, or Weidong Han. My guess is if one of them can repro this issue then
> the fix will be simple.
> 
>  -- Keir
> 
> 



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