Re: [Qemu-devel] [RFC]VM live snapshot proposal

[Huangpeng (Peter)]

> > Good suggestion, The latest patches of post-copy seems updated 2 years
> ago.
> > https://github.com/yamahata/qemu
> 
> I'm working on post-copy at the moment, using Andrea's kernel code, using bits
> of Yamahata's code base as well; hopefully it won't be too long until we have
> something to post.
> 
> > One question:
> > Can post-copy fallback if exceptions happen during post-copy?
> 
> What do you mean by 'exceptions' here?  Generally postcopy can't fall back to
> precopy because once you're in postcopy mode the state is split between the
> two machines.
> 

Like destination VM interrupted due to memory-copy error or other exceptions,
with pre-copy scheme, we can fall-back to the source-vm.

One simple question(may be discussed before), what kind of scenario does 
post-copy
aim for?