lkml.org 
[lkml]   [2007]   [Jul]   [15]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateSun, 15 Jul 2007 19:15:47 -0400 (EDT)
FromAlan Stern <>
SubjectRe: Hibernation considerations
On Sun, 15 Jul 2007 david@lang.hm wrote:

> >> for a pure hibernate mode, you will be powering off the box after saving
> >> the suspend image. why are there any special ACPI modes involved?
> >
> > Because, for example, on my machine the status of power supply (present
> > vs not present) is not updated correctly after the restore if ACPI callbacks
> > aren't used during the hibernation.  That's just experience and it's in line
> > with the ACPI spec.
> 
> so if a machine is actually powered off the /dev/suspend process won't 
> work?
> 
> remember that the system may run a different OS between the hibernate and 
> the resume, makeing any assumptions about what state the hardware is in 
> when you start the resume is a problem.

As I understand it, running a different OS between the hibernate and 
the resume would violate the ACPI spec.

Alan Stern

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-07-16 01:19    [from the cache]
©2003-2008