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Subject: Re: apm power_off on smp
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Xavier Bestel <xavier.bestel@free.fr>
Cc: Pozsar Balazs <pozsy@uhulinux.hu>,
       Kelledin <kelledin+LKML@skarpsey.dyndns.org>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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On Mon, 2002-07-15 at 00:34, Xavier Bestel wrote:
> > > What i do not understand is why the poweroff functionality is disabled by
> > > default.
> > 
> > Because it too is unsafe on some machines
> 
> Would it be possible to use the CPU-hotplug patch to unplug all CPUs
> except the one entering apm power-off ?

Only if your hardware supports true CPU unplugging and your BIOS
supports APM for it. That is wildly improbable at best

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