Re: [PATCH 0/9] OpenVZ kernel based checkpointing/restart

Serge E. Hallyn
2008-10-20T16:51:35Z

Quoting Oren Laadan (orenl@cs.columbia.edu):
> This is a misconception: my patches are not "internal checkpoint". My
> patches are basically "external checkpoint" by design, which *also*
> accommodates self-checkpointing (aka internal). The same holds for the
> restart. The implementation is demonstrated with "self-checkpoint" to
> avoid complicating things at this early stage of proof-of-concept.
>
> For multiple processes all that is needed is a container and a loop
> on the checkpoint side, and a method to recreate processes on the
> restart side. Andrew suggests to do it in kernel space, I still have
> doubts.

Yes I still prefer in-kernel. Can you elaborate on advantages of doing
more work in userspace?

> While I held out the multi-process part of the patch so far because I

Yup, and i appreciate your restraint until now :) It made your patchset
much easier to review.

> was explicitly asked to do it, it seems like this would be a good time
> to push it out and get feedback.

Can you send that out as a patch(set) on top of your v7? I'd love to
see (and test) it.

thanks,
-serge