Bug 150613

Summary: Release Notes: please mention POWERSAVE=off
Product: [openSUSE] SUSE Linux 10.1 Reporter: Forgotten User ZhJd0F0L3x <forgotten_ZhJd0F0L3x>
Component: Release NotesAssignee: Karl Eichwalder <ke>
Status: RESOLVED FIXED QA Contact: Karl Eichwalder <ke>
Severity: Normal    
Priority: P5 - None CC: aj, snwint
Version: Beta 3   
Target Milestone: Beta 5   
Hardware: Other   
OS: Other   
Whiteboard:
Found By: Development Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---

Description Forgotten User ZhJd0F0L3x 2006-02-13 21:33:39 UTC 
We have a new option that disables the powersaved during system boot. This is needed on some machines to avoid a system hang and to be able to reconfigure the machine so that it can boot with powersaved (and a fixed config).
The parameter is "POWERSAVE=off". This should be added to the release notes for all CODE10 products and if possible in the bootloader help text.
Comment 1 Karl Eichwalder 2006-02-14 05:52:04 UTC 
I guess "all CODE10 products" cover SL 10.1 as well.
Comment 2 Andreas Jaeger 2006-02-14 08:21:26 UTC 
Yes, it does - please add for 10.1 - and then assign to Thorsten for SLES10.
Comment 3 Berthold Gunreben 2006-02-14 08:55:19 UTC 
reassign to maintainer of release notes
Comment 4 Karl Eichwalder 2006-02-14 09:36:06 UTC 
I propose the following text:

  <!-- bug 150613 -->
  <sect3 status="2006-02-14" id="disable-powersaved">
   <title>Disabling Powersave Daemon during System Boot</title>
    <para>
On some machine during system boot you must temporarily disable the powersave
daemon (<command>powersaved</command>) to avoid a system hang.  Use
<literal>POWERSAVE=off</literal> as a boot parameter, to prevent the daemon
from starting.  When the system is up and running, configure the machine so it
can boot with <command>powersaved</command> enabled in the future.</para>
  </sect3>

=================================================================

I guess the user will find helpful info for the configuration in the manual?
Comment 5 Andreas Kleen 2006-02-14 09:39:57 UTC 
That doesn't quite catch it. The point was to disable powersaved completely
if it it doesn't work.

More like: 

On some machines cpu frequency scaling can cause hangs when the machine is idle or when powersaved starts. On those it can be disabled at installation
with POWERSAVE=off as a boot parameter.  

When this parameter is not given at the initial CD boot of the installation
powersaved has to be disabled manually later using chkconfig powersaved off
Comment 6 Karl Eichwalder 2006-02-14 10:05:46 UTC 
yes, that's quite different.  Next try:

  <!-- bug 150613 -->
  <sect3 status="2006-02-14" id="disable-powersaved">
   <title>Disabling Powersave Daemon</title>
    <para>
On some machines cpu frequency scaling can cause hangs when the machine is idle
or when powersaved starts.  In this cases disable the powersave daemon at
the  installation with <literal>POWERSAVE=off</literal> as a boot parameter.
</para>
   <para>
When this parameter is not given at the initial CD boot of the installation,
powersaved must be disabled later using <command>chkconfig powersaved
off</command>.</para>
  </sect3>
Comment 7 Karl Eichwalder 2006-02-17 10:27:59 UTC 
submitted to /work
Comment 8 Karl Eichwalder 2006-02-17 10:28:57 UTC 
re-open if it is still an issue for the bootloader help text.