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From: Roger Luethi <rl@hellgate.ch>
To: Mikael Pettersson <mikpe@csd.uu.se>
Cc: linux-kernel@vger.kernel.org, mingo@redhat.com
Subject: Re: APIC support prevents power off
Date: Wed, 23 Jul 2003 01:28:24 +0200	[thread overview]
Message-ID: <20030722232824.GA3606@k3.hellgate.ch> (raw)
In-Reply-To: <200307220835.h6M8Zaqd024427@harpo.it.uu.se>

On Tue, 22 Jul 2003 10:35:36 +0200, Mikael Pettersson wrote:
> You really should check if a BIOS update is available.

Alright. I tried. If the BIOS is at fault, ASUS hasn't fixed it yet.

> Your APM/ACPI config seems Ok, but what does CONFIG_SMP look like?
> Enabling SMP disables APM's power off code, unless one boots with
> apm=power-off.

SMP is off.

> Did your kernel have to actually enable the local APIC, or did
> the BIOS boot us with it already enabled? Please send me a dmesg

$ dmesg|grep APIC
Local APIC disabled by BIOS -- reenabling.
Found and enabled local APIC!
Using local APIC timer interrupts.
calibrating APIC timer ...

> I can't seem to find any place where we disable the local APIC
> on shutdown; reboot seems Ok but not poweroff (as far as I can see).
> I think this might explain why some BIOSen hang at poweroff.

Quite possibly.

Roger

  parent reply	other threads:[~2003-07-22 23:13 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-22  8:35 Mikael Pettersson
2003-07-22 11:45 ` Mark McClelland
2003-07-22 23:28 ` Roger Luethi [this message]
  -- strict thread matches above, loose matches on Subject: below --
2003-07-21  1:13 Mikael Pettersson
2003-07-21  9:54 ` Roger Luethi
2003-07-21 10:16   ` William Gallafent
2003-07-20 14:36 Roger Luethi

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