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Conference csc32::consolemanager

Title:POLYCENTER Console Manager
Notice:Kits, Scans, Docs on CSC32:: as PCM$KITS:,PCM$DOCS:, PCM$SCANS:
Moderator:CSC32::BUTTERWORTH
Created:Thu Aug 06 1992
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1541
Total number of notes:6564

716.0. "kernel memory fault" by CSC32::PITT () Mon May 08 1995 19:06

    
    
    PCM 1.5a crashes system with CPU0 kernel meory fault
    
    It happens randomky during different phases of pcm. Happened once
    just by typing in "console -c3". Another time it happened while he
    was adding a system...
    The system core dumps, and uerf -R is where we're seeing the error. 
    
    This is a 2100 running v3.2a of OSF.
    He has 85% swap space available as well as plenty of disk and memory. 
    The system does not ever core dump unless we're trying to run pcm. 
    
    He's going to try and install 1.6, but was wondering if this was a
    known problem under 1.5a. .. (I have two nodes running 1.5a that do not
    crash with PCM!)
    
    thanks.
T.RTitleUserPersonal
Name		DateLines
716.1HW?ZENDIA::DBIGELOWInnovate, Integrate, EvaporateMon May 08 1995 21:129
    Not sure ehat to say here, except that it sounds like the problem lies
    outside of PCM. I don't believe that we do anything outside of the
    ordinary which wouls cause the system to core dump. It seems like a
    sporadic error and I would be suspicious that this might be some sort
    of hardware error. (I know, it sounds like I'm passing the buck, but
    the operting system should be protected from allowing users to cause a 
    core dump).
    
    Dave
716.2CSC32::PITTMon May 08 1995 23:0916
    
    
    I agree....but the facts do tend to incriminate PCM!  
    This node was up and running without any problems for several weeks.
    He is running other network protocols so the controller is getting a
    workout outside of pcm. 
    As soon as he fired up PCM, core dump. 
    If he leaves it down, no problem. Start it up, core dump. 
    
    Question. If you have no systems configured under PCM yet, is it even 
    going to use the network controller? It's not doing any polling or
    soliciting, so the network controller wouldn't come into play yet?
    
    thanks !!!!!!!!
    
    Cathy
716.3YOSSAM::SIMONSimon Jackson @reo 830 X3879Tue May 09 1995 09:408
There is a known big in version 3.2 of OSF/1 LAT code which is seen when using
PCM. It causes the Kernel Memory Panic you have seen. It is seen when you use
LAT as the PCM management transport. There is a patch available for this problem
from the CSC.

See note 624.last as this has the patch reference.

Cheers SImon...
716.4CSC32::PITTWed May 10 1995 06:015
    
    
    thanks Simon, I'll try the patch!
    
    Cathy