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    SubjectRe: Hibernation Redesign
    Date
    Am Montag, 9. Juli 2007 schrieb Pavel Machek:
    > Hi!
    >
    > > >> This approach eliminates the need for the freezer, as it would make
    > > >> hibernate look a lot a bit like suspend to ram from the perspective of
    > > >> the "old" kernel (the kernel being hibernated), as the hibernate
    > > >> operation itself would be completely atomic from the perspective of the
    > > >> "old" kernel.  That is not to say, of course, that any code paths would
    > > >> actually be shared, or that the drivers would do the same things
    > > >> (because they probably would not).
    > >
    > > > Well it basically is suspend to RAM with the additional step that a
    > > > new kernel gets booted and writes out the data from RAM to disk then
    > > > shuts down.
    > >
    > > There is the key difference, though, that the drivers should do rather
    > > different things.  In particular, rather than place the hardware in a
    > > low-power mode, it should place it in some state such that the new
    > > kernel being loaded can handle it.
    >
    > Actually, when current kernel restores the snapshot... driver
    > requirements seem to be pretty similar. So that should not be a big
    > problem.

    Hm, once the new kernel is booted, this decision is irrevocable, isn't it?
    Is there any way to deal with errors by handing control back?

    Regards
    Oliver

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