Bug 62083

Summary:	poweroff command does not turn off power.
Product:	[Retired] Red Hat Linux	Reporter:	Ivo Sarak <ivo>
Component:	kernel	Assignee:	Arjan van de Ven <arjanv>
Status:	CLOSED NOTABUG	QA Contact:	Jay Turner <jturner>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	9	CC:	admin, srevivo, wtogami
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2003-06-05 17:39:04 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Ivo Sarak 2002-03-27 09:47:31 UTC

From Bugzilla Helper:
User-Agent: Mozilla/5.0 Galeon/1.2.0 (X11; Linux i686; U;) Gecko/20020311

Description of problem:
Result of poweroff command is not a shutdown of power to motherboard and other
devices. Message remaining on screen "Power down."

Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
Run a poweroff command.


Actual Results:  All devices are running and consuming power.

Expected Results:  Successful shutdown with turning off all devices.

Additional info:

Asustek A7M266-D with 2*AMD Athlon XP 1700+.

$ dmesg | grep apm
apm: BIOS version 1.2 Flags 0x03 (Driver version 1.16)
apm: disabled - APM is not SMP safe.

Comment 1 Preston Brown 2002-03-27 14:03:34 UTC

Arjan:  Aren't we supposed to have fixed this?

Comment 2 Arjan van de Ven 2002-03-27 14:07:10 UTC

No.

APM is rather non SMP safe (eg the words "SMP" or "multiprocessor" don't even
exist in the specification). However for poweroff you can make an exception:
add

apm=power-off
 
to the line with vmlinuz in it in /etc/grub/grub.conf
and you override the SMP check for apm. This is not done by default because
several bioses get it wrong and do Bad Things(tm).

Comment 3 Ivo Sarak 2002-03-27 14:31:59 UTC

I think this is the case ofBad Things(tm):

apm: disabled - APM is not SMP safe (power off active)
is last message before hang.

Comment 4 Arjan van de Ven 2002-03-27 14:45:57 UTC

Might be a good plan to check for a bios upgrade ;)

Comment 5 Ivo Sarak 2002-03-28 16:22:46 UTC

I have installed the latest BIOS (1005d) to this board, but with no change.

Comment 6 John Bage 2002-07-02 20:50:23 UTC

I am having the same problem using KDE and Grub on RedHat Linux 7.3. I have 
even tried to do all the updates and even a complete reinstall of it but with 
no luck. It still continues to do this. I have also tried the bigmem, smp, and 
the regular kernels and the same problem still continues.

Comment 7 Adam Cowell 2002-08-20 01:35:51 UTC

I am now having this problem with Redhat 7.3 after one of the updates up2date
got.  It worked fine previously. Its a single CPU system and a Asus motherboard
a (A7V133). /sbin/shutdown -h now works fine though.

Comment 8 Alan Cox 2003-06-05 17:39:04 UTC

The AMD dual CPU doesn't support poweroff (APM isnt specified for SMP)