Re: [Xen-devel] [PATCH v13 00/26] COarse-grain LOck-stepping Virtual Machines for Non-stop Service

[Wen Congyang <wency@xxxxxxxxxxxxxx>]

On 03/30/2016 10:50 PM, Ian Jackson wrote:
> Changlong Xie writes ("[PATCH v13 00/26] COarse-grain LOck-stepping Virtual 
> Machines for Non-stop Service"):
>> This patchset implemented the COLO feature for Xen.
>> For detail/install/use of COLO feature, refer to:
>> http://wiki.xen.org/wiki/COLO_-_Coarse_Grain_Lock_Stepping
>>
>> You can get the codes from here:
>> https://github.com/Pating/xen/tree/changlox/colo_v13
> 
> I fetched the branches `colo_v13' and `colo_v13_fixup' and it seems
> that I can get the proper versions of v13.1 from the latter.  I have
> acked them accordingly.
> 
> Can you confirm that that branch is what you intend for upstream ?
> 
> If so, I have a question about it:
> 
> There are two patches in it which have not been posted as part of your
> series and are marked as "[DO NOT MERGE]".  (Thanks for your admirably
> clear marking, btw.)
> 
> They are
>   [DONT MERGE] don't create default ioreq server
>   [DONT MERGE] tools/libxc: support to resume uncooperative HVM guests
> 
> 
> The latter patch "support to resume uncooperative HVM guests" seems to
> have been posted a number of times and AFAICT most recently as
>   [PATCH v8 05/13] tools/libxc: support to resume uncooperative HVM guests
> on the 18th of February.
> 
> Is that not required for COLO ?  We need to sort this out, I think.

Yes, it is required for COLO.

> 
> 
> What is the status of the default ioreq server patch ?  Why is it in
> your git branch ?

I have reported this bug last year:
http://lists.xenproject.org/archives/html/xen-devel/2015-12/msg02850.html

This patch is just a temporary patch.

Thanks
Wen Congyang

> 
> 
> Thanks,
> Ian.
> 
> 
> .
> 




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