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    SubjectRe: [PATCH 0/2 -mm] kexec based hibernation -v5
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    On Thu, 2007-10-11 at 12:17 +0200, Rafael J. Wysocki wrote:
    > On Thursday, 11 October 2007 04:13, Huang, Ying wrote:
    > > Kexec base hibernation has some potential advantages over uswsusp and
    > > TuxOnIce (suspend2). Some most obvious advantages are:
    >
    > Well, I have some doubts as far as the obviousness is concerned.

    OK, I will remove the "obvious".

    > > 1. The hibernation image size can exceed half of memory size easily.
    >
    > This is also possible with TuxOnIce.

    I will add detail description about this. It is possible with TuxOnIce,
    and hard with u/swsusp.

    >
    > > 2. The hibernation image can be written to and read from almost
    > > anywhere, such as USB disk, NFS.
    >
    > This is possible with uswsusp, at least in theory, probably with TuxOnIce too.

    I will remove this.

    > > 3. It is possible to eliminate freezer from kexec based hibernation
    > > implementation.
    >
    > This isn't true as long as we have not changed the handling of devices
    > (which is in the works, but will take time).

    I know it has not been implemented yet. I just say that it is possible
    for khibernation and it is almost impossible for u/swsusp and TuxOnIce.

    > > 4. Based on kexec/kdump implementation, the kernel code needed is
    > > less.
    >
    > Well, maybe.
    >

    Best Regards,
    Huang Ying
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