Re: apm power_off on smp

[Xavier Bestel]

Le lun 15/07/2002 à 02:57, Alan Cox a écrit :
> > 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

Err .. my mobo's BIOS is SMP specific and implements APM, so I guess
there is a case where it's useful. It must be something like when
running Win95, which is UP only. Isn't Linux able to return to a UP-like
state (à la Win95) just before entering poweroff ?

Or perhaps my first assumption is false: the APM implementation in my
BIOS just wastes some flash and never intended to be utilized.