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MF59504 - LIC-DISK-OTHER-SRCB6005121-UNPRED RACE CONDITION DURING ADD

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


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Abstract

LIC-DISK-OTHER-SRCB6005121-UNPRED RACE CONDITION DURING ADD


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 'IBM License Agreement for Machine
Code', the terms of which were provided in a printed document that was
delivered with the machine.

SUBJECT TO ANY WARRANTIES WHICH CAN NOT BE EXCLUDED OR EXCEPT AS EXPLICITLY
AGREED TO IN THE APPLICABLE LICENSE AGREEMENT OR AN APPLICABLE SUPPORT
AGREEMENT, IBM MAKES NO WARRANTIES OR CONDITIONS EITHER EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON INFRINGEMENT,
REGARDING THE PTF.





APAR Error Description / Circumvention

-----------------------------------------------
There is a race condition during add of 4096 sector disk units
that can lead to mainstore pages having the wrong attribute.
When those pages are written out the system may terminate with
the following SRC:

word 1 srcB6005121 B6005121
word 3 src0002000A 0002000A
word 4 src00100013 00100013

Service Keywords:
SmPageCompression

CORRECTION FOR APAR MA44256 :
-----------------------------
The problem is fixed.

CIRCUMVENTION FOR APAR MA44256 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


None.


Default Instructions

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



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF58405      LIC-OTHER-F/#JOMODJP-MSGMCH3203 after removing DASD
   MF57887      LIC-OTHER-PERFM QUERY PERFORMS POORLY DUE TO LACK OF ASP INF

Summary Information

System..............................i
Models..............................
Release.............................V7R2M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA44256
Superseded by:......................View fix details for PTF MF99109
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C5135720


System i Support

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Document Information

Modified date:
17 December 2014