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Subject: Re: poweroff problem
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: "Udo A. Steinberg" <us15@os.inf.tu-dresden.de>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
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Date: 06 Apr 2003 16:14:42 +0100
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On Sul, 2003-04-06 at 17:37, Udo A. Steinberg wrote:
> On 06 Apr 2003 15:24:55 +0100 Alan Cox (AC) wrote:
> 
> AC> We rely on the bios for the power off sequences. Many BIOS vendors do
> AC> set it up to share the bios code it seems
> 
> Ok, but this does not explain why things work with 2.5.66 on the exact same
> machine, unless 2.5 had workarounds for BIOS bugs or didn't use the BIOS for
> power off. Board is an Asus A7V, BIOS version 1011.

Different options for reboot (16 v 32) perhaps, might even be something is
random as which way the carry flag is when the bios code is called. If you
want to be sure for the APM case stick a printk just before we drop into
the BIOS and make sure we oops after and not before..