On Sunday, 30 of December 2007, Ingo Molnar wrote:
>
> * Rafael J. Wysocki <[email protected]> wrote:
>
> > > But i'm wondering - are we really ever resuming to a different
> > > kernel version, for this to be an issue?
> >
> > The boot kernel may be different from the kernel within the image, if
> > that's what you're asking for.
>
> how different can it be, for resume to work? I mean, we'll have deeply
> kernel version dependent variables in RAM. Am i missing something
> obvious?
On x86-64 it can be almost totally different (by restoring a hibernation image
we replace the entire contents of RAM with almost no constraints).
[Well, using a relocatable kernel for restoring an image with nonrelocatable one
or vice versa is rather not the best idea, but everything else should work in
theory.]
On i386 the boot kernel is still required to be the same as the one in the
image.
Greetings,
Rafael
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