Re: [Xen-devel] [PATCH v7 COLO 00/18] COarse-grain LOck-stepping Virtual Machines for Non-stop Service

[Yang Hongyang <yanghy@xxxxxxxxxxxxxx>]

On 07/14/2015 11:55 PM, Ian Campbell wrote:
> On Thu, 2015-06-25 at 14:30 +0800, Yang Hongyang wrote:
> > 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
> >
> > This patchset is based on:
> >    [PATCH v3 COLOPre 00/26] Prerequisite patches for COLO
> > and on:
> >    
> > http://xenbits.xen.org/gitweb/?p=people/andrewcoop/xen.git;a=shortlog;h=refs/heads/libxl-migv2-v1
> I started going over this but once I got to the meat I realised that it
> was based on this older version and that quite a bit had changed in
> migrv2 since (and I think migrv2 v4.1 includes bits of this series
> already from the looks of it).
>
> I tried to do the naive git rebase, but it resulted in more conflicts
> than I could deal with.
>
> So my question is, should I continue to look at this version or should I
> await a v8 based on the latest migration stuff?
Yes. there's quite a lot rebase work to be done. However, I've done the
rebase, but there's some problems with Remus on migration v2(without colo),
I've reported them to Andy and I am looking into them too, hopefully I'll
fix the problem and send the v8 based on the latest migration today.

> Have you been following the review of migrv2? In particular I think some
> of Ian J's comments there on the state machines and the
> comments/assumptions about states etc may apply to bits of this series
> too. I'm thinking in particular of the comments on "tools/libxl:
> Infrastructure for reading a libxl migration v2 stream" on v2 and v3 or
> that series.
I'll read Ian's comment and see if we can apply to colo series. Thanks!

> Ian.
>
> .
--
Thanks,
Yang.

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