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Conference turris::digital_unix

Title:DIGITAL UNIX(FORMERLY KNOWN AS DEC OSF/1)
Notice:Welcome to the Digital UNIX Conference
Moderator:SMURF::DENHAM
Created:Thu Mar 16 1995
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:10068
Total number of notes:35879

9508.0. "4.0B Installation Guide and Realtime pre-emption" by IOSG::MARSHALL () Tue Apr 15 1997 11:40

Quickie:

The Installation Guide for both 4.0A and 4.0B says (on page 5-39 for the 4.0B
version):

>> ...edit the configuration file and set the rt-preempt-opt
>> parameter equal to 1 as shown in the following example:
>>     rt-preempt-opt=1

This appears to be complete nonsense, and as far as I can make out the 'right'
thing to do is add the line:
       options RT_PREEMPT_OPT

to the configuration file.  Is that correct?

Ta,
Scott
T.RTitleUserPersonal
Name		DateLines
9508.1Both will work...RHETT::PARKERTue Apr 15 1997 11:4619
    
    Hi, Scott.
    
    Either one will work. What the manual fails to mention in the 
    first case is you have to place that in the generic subsystem.
    
    generic:
    	rt-preempt-opt = 1 
    
    And just reboot. Check it with sysconfig -q generic. The other 
    method will work too but with it you have to go through the extra
    trouble of rebuilding the kernel. 
    
    I prefer the sysconfigtab method...
    
    Hth,
    
    Lee
9508.2SMURF::DENHAMDigital UNIX KernelTue Apr 15 1997 14:124
    What's confusing here is that /etc/sysconfigtab is not what's
    traditionally considered the "configuration file." That's
    usually considered to be the /usr/sys/conf/SYSTEM-NAME file.
    Which is where you would put the RT_PREEMPT_OPT option, BTW.
9508.3IOSG::MARSHALLWed Apr 16 1997 12:449
So there's two errors here:
1) The Inst Guide doesn't mention the 'generic:' section
2) It tells you to put it in the /usr/sys/conf/NAME file, when it should
      be in /etc/sysconfigtab

Should I QAR this or is it known about already?

Thanks,
Scott
9508.4qar itGERUND::WOLFEI'm going to huff, and puff, and blow your house downWed Apr 16 1997 22:171