Bug 169697 - SMP kernel builds enable incompatible APM support
Summary: SMP kernel builds enable incompatible APM support
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 4
Hardware: i686
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Brian Brock
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2005-10-01 13:36 UTC by Steve Snyder
Modified: 2007-11-30 22:11 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2005-10-02 21:16:20 UTC
Type: ---
Embargoed:

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Description Steve Snyder 2005-10-01 13:36:55 UTC 
From Bugzilla Helper:
User-Agent: Opera/8.5 (X11; Linux i686; U; en)

Description of problem:
This is a request, not a bug report:

It is well known that Linux Advanced Power Management (APM) is incompatible with 
SMP support.  That's why the kernel disables APM support at boot time.  So why 
is RedHat/Fedora building SMP kernels with APM enabled?


Version-Release number of selected component (if applicable):
kernel-smp-2.6.13-1.1526_FC4

How reproducible:
Always

Steps to Reproduce:
1.Boot SMP kernel
2.Note logged message stating that APM is being disabled
3.
  

Actual Results:  Logged messages at boot time:
kernel: apm: BIOS version 1.2 Flags 0x07 (Driver version 1.16ac)
kernel: apm: disabled - APM is not SMP safe.


Expected Results:  Kernels should not be built with incompatible options.


Additional info:

In future SMP kernel builds, please do not waste memory by building the unusable 
APM support.  Thank you.
Comment 1 Dave Jones 2005-10-02 21:16:20 UTC 
it's needed for power-off on smp systems without acpi.
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