[Devel] Re: [RFC v13][PATCH 00/14] Kernel based checkpoint/restart

[Matt Mackall]

On Thu, 2009-02-12 at 14:57 -0800, Dave Hansen wrote:
> > Also, what happens if I checkpoint a process in 2.6.30 and restore it in
> > 2.6.31 which has an expanded idea of what should be restored? Do your
> > file formats handle this sort of forward compatibility or am I
> > restricted to one kernel?
> 
> In general, you're restricted to one kernel.  But, people have mentioned
> that, if the formats change, we should be able to write in-userspace
> converters for the checkpoint files.  

I mentioned this because it seems like a key use case is upgrading
kernels out from under long-lived applications.

-- 
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