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

[Ian Campbell <ian.campbell@citrix.com>]

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?

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.

Ian.