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SI60256 - OSP-OTHER-LOOP SYSTEM JOBS WILL NOT END.

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


Order this fix

Abstract

OSP-OTHER-LOOP SYSTEM JOBS WILL NOT END.


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
NONE



NOTICE:
-------
Application of this PTF may disable or render ineffective programs that
use system memory addresses not generated by the IBM translator,
including programs that circumvent control technology designed to limit
interactive capacity to purchased levels.  This PTF may be a prerequisite
for future PTFs.  By applying this PTF you authorize and agree to the
foregoing.

This PTF is subject to the terms of the license agreement which
accompanied, or was contained in, the Program for which you are obtaining
the PTF.  You are not authorized to install or use the PTF except as part
of a Program for which you have a valid Proof of Entitlement.

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APAR Error Description / Circumvention

-----------------------------------------------
System IASP Jobs are not ending during a Vary Off, but taking
cpu.  Servicedocs collection shows loop in RmslLockCheck.
However, further investigation using MSD showed QSPFILES is
involved in the loop.
So far, we have only seen this symptom on LPARS using IASPs.

CORRECTION FOR APAR SE64069 :
-----------------------------
The IASP vary off code path is changed to ensure that System
Jobs using IASPs are ended.  This will ensure that System Jobs
don't get stuck around after the IASP is varied off.
Vary off will now wait a maximum of 10 minutes for System Jobs
to end.  If there are system jobs that have not ended, a message
for each job will be output to QSYSOPR once per minute until the
10 minute timeout (or the jobs end).  If the system jobs have
still not ended by the end of the 10 minutes, the vary off will
continue.

CIRCUMVENTION FOR APAR SE64069 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


IPL after applying or removing the fix.

********************************************************************
THE FOLLOWING ARE SUPERSEDED SPECIAL INSTRUCTIONS. IF THE SUPERSEDED
PTF HAS ALREADY BEEN APPLIED AND ITS SPECIAL INSTRUCTION FOLLOWED,
IT IS NOT NECESSARY TO FOLLOW THAT SPECIAL INSTRUCTION AGAIN.
********************************************************************

SPECIAL INSTRUCTIONS FOR SUPERSEDED PTF SI58908 :
=================================================

You must IPL to apply the fix.

SPECIAL INSTRUCTIONS FOR SUPERSEDED PTF SI58500 :
=================================================

On each node in the cluster, end clustering, apply the fix, and then
start clustering.  It is not necessary to update all nodes at the same
time, however, any node without the fix will continue to be a potential
source of the problem.


Default Instructions

THIS IS A DELAYED PTF TO BE APPLIED AT IPL TIME.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   SI58908      OSP-DB-OTHER-PERFM VARY ON OF IASP STARTS NUMBER OF QDBSRV J
   SI58908      OSP-Use OptimisticReadMutex to allow quicker reads
   SI58908      OSP-resolve to QSYS00### library fails with MCH3401 before c
   SI58908      OSP-OTHER-MSGMCH3601 IASP VARYON FAILS MCH3601 CPF2777 DAMAG
   SI58500      HASM-HA-WAIT CHANGING OR DISPLAYING DEVICE DOMAIN DATA WHILE

Summary Information

System..............................  i
Models..............................  
Release.............................  V7R3M0
Licensed Program....................  5770SS1
APAR Fixed..........................  View details for APAR SE64069
Superseded by:......................  View fix details for PTF SI79856
Recompile...........................  N
Library.............................  QSYS
MRI Feature ........................  NONE
Cum Level...........................  C7061730


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Document Information

Modified date:
19 May 2022