On Monday, 28 May 2007 15:26, Pavel Machek wrote:
> Hi!
>
> > >That's clear, I'll have to use xen or kvm or similar which restores
> > >the system as suspended. Thanks for the clarification of the limitations.
> > >
> > Sorry, I wrote that late at night and quickly. I should have said
> > "design decision" rather than "limitation," For systems which don't do
> > multiple kernels it's not an issue.
> >
> > I certainly would not have made the same decision, but I didn't write
> > the code. It seems more robust to save everything than to try to
> > identify what has and hasn't changed in a modular kernel.
>
> We rely on atomic copy routine not moving inside the kernel. Yes, it
> would be possible to copy it to "known good" address and gain ability
> to resume different kernels. Actually it should not be _that_ hard.
Yup. Don't we do something like this for the (ACPI-based) suspend to RAM
already?
Greetings,
Rafael
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