Re: Problems with SMP & ACPI powering off
From: Rafael J. Wysocki
Date: Fri Sep 28 2007 - 08:41:25 EST
On Friday, 28 September 2007 06:57, Len Brown wrote:
> On Thursday 27 September 2007 18:00, Rafael J. Wysocki wrote:
> > On Thursday, 27 September 2007 23:29, Mark Lord wrote:
> > > Question: do we disable all CPUs except 0 when doing ACPI power off?
> > No, but we should.
> We used to.
> It is absolutely mandatory -- else it confuses the BIOS on some boards
> b/c it isn't expecting SMM to get entered from other than cpu0.
Can we use the CPU hotplug for that, like in the suspend/hibernation case?
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