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

Jeremy Maitin-Shepard jbms at cmu.edu
Fri Sep 21 16:26:12 EDT 2007

"Rafael J. Wysocki" <rjw at sisk.pl> writes:


> The ACPI NVS area is explicitly marked as reserved and we don't save it.
> On x86_64 we don't save any memory areas marked as reserved and yet the above
> happens.

I think you have mentioned before, though, that ACPI is first
initialized by the boot kernel, before it is later initialized by
resuming kernel.  This could well be the source of the problem.

In particular, isn't it the case that you also switch the devices to low
power mode before resuming?

Jeremy Maitin-Shepard

More information about the kexec mailing list