On Friday, 12 October 2007 05:19, Huang, Ying wrote:
> 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.
Actually, possible with TuxOnIce, impossible with u/swsusp, at present.
> > > 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.
OK, thanks.
> > > 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.
When that's implemented, it may be possible to avoid using the freezer for
u/swsusp and TuxOnIce either. Time will tell.
Greetings,
Rafael
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