Re: Re: [RFC][PATCH 1/2 -mm] kexec based hibernation -v3: kexec jump

Rafael J. Wysocki
2007-10-24T20:38:02Z

On Thursday, 11 October 2007 22:54, Pavel Machek wrote:
> Hi!
>
> > > That's certainly possible. We already pass a very small amount of data between
> > > the boot and resuming kernels at the moment, and it's done quite simply - by
> > > putting the variables we want to 'transfer' in a nosave page/section.
> >
> > Well, if the boot and image kernels are different, which is now possible on
> > x86_64 with some recent patches (currently in -mm), the nosave trick won't
> > work.
>
> I guess we should remove the nosave.... at least from x86-64. If
> someone tries to use it, he'll get a nasty surprise.

Agreed.

I'll try to prepare a patch for that when I have a bit of time.

Greetings,
Rafael