Re: Hibernation considerations

Matthew Garrett
2007-07-18T11:10:17Z

On Tue, Jul 17, 2007 at 08:54:24PM -0700, david@lang.hm wrote:
> On Wed, 18 Jul 2007, Matthew Garrett wrote:
>
> >On Tue, Jul 17, 2007 at 08:19:32AM -0700, david@lang.hm wrote:
> >>On Tue, 17 Jul 2007, Matthew Garrett wrote:
> >>>Powering off rather than using S4 means you lose most wakeup device
> >>>support. That would be a functional regression compared to the current
> >>>code.
> >>
> >>only if the kexec isn't able to initialize those devices.
> >
> >If you aren't using ACPI, you probably don't know how to.
>
> the current kexec patch to allow you to move back to the original kernel
> requires ACPI be disabled to work.

Which means it isn't putting the hardware into S4, which means that you
don't get the platform wakeup events.

--
Matthew Garrett | mjg59@srcf.ucam.org