port-i386/38936: system can not power down via acpi

[martin%duskware.de@localhost]

>Number:         38936
>Category:       port-i386
>Synopsis:       system can not power down via acpi
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-i386-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jun 10 20:20:00 +0000 2008
>Originator:     Martin Husemann
>Release:        NetBSD 4.99.64
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD night-porter.duskware.de 4.99.64 NetBSD 4.99.64 (PORTER) #50: 
Tue Jun 10 18:56:22 CEST 2008 
martin%night-porter.duskware.de@localhost:/usr/src/sys/arch/i386/compile/PORTER 
i386
Architecture: i386
Machine: i386
>Description:

My system seems to be unable to power off via ACPI.
It does all the pmf magic, then says:

acpi: entering state 5

and then seems to hang in the call to AcpiEnterSleepStatePrep(), or if I 
comment that, in AcpiEnterSleepState().

Bug in my ACPI bios (not unlikely, server works chipset, asus bios, CUR-DLS
board, bios is latest available beta from asus [from 2002]).

Side note: if AcpiEnterSleepState() would fail (which, of course, it should
not), the return value is ignored and acpi_enter_sleep_state() will return
success.

>How-To-Repeat:

on my machine:
shutdown -p now 

>Fix:
Create an option (or a quirk table?) to avoid trying to power down via acpi
and use apm instead? But maybe that will only cause us to hit PR 37434 ;-}