From: Xavier Bestel <xavier.bestel@free.fr>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Pozsar Balazs <pozsy@uhulinux.hu>,
Kelledin <kelledin+LKML@skarpsey.dyndns.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: apm power_off on smp
Date: 15 Jul 2002 02:05:24 +0200 [thread overview]
Message-ID: <1026691525.2077.38.camel@bip> (raw)
In-Reply-To: <1026694644.13885.99.camel@irongate.swansea.linux.org.uk>
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.
next prev parent reply other threads:[~2002-07-15 0:02 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-14 22:13 Pozsar Balazs
2002-07-14 22:30 ` Kelledin
2002-07-14 22:55 ` Xavier Bestel
2002-07-14 23:03 ` Pozsar Balazs
2002-07-15 0:39 ` Alan Cox
2002-07-14 23:34 ` Xavier Bestel
2002-07-15 0:57 ` Alan Cox
2002-07-15 0:05 ` Xavier Bestel [this message]
2002-07-15 1:23 ` Alan Cox
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