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MF65545 - LIC-DB-OTHER-INCORROUT TIMING CONDITION DURING QUERY CANCELL

PTF ( Program Temporary Fixes ) Cover letter


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Abstract

LIC-DB-OTHER-INCORROUT TIMING CONDITION DURING QUERY CANCELL


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
CO   5770999  V7R2M0    MF65470   00/00    0000
CO   5770999  V7R2M0    MF64424   00/00    0000
CO   5770999  V7R2M0    MF64428   00/00    0000
CO   5770999  V7R2M0    MF61106   00/00    0000
CO   5770999  V7R2M0    MF58586   00/00    0000
CO   5770999  V7R2M0    MF59835   00/00    0000
CO   5770999  V7R2M0    MF59839   00/00    0000
CO   5770999  V7R2M0    MF57655   00/00    0000



NOTICE:
-------
Application of this PTF may disable or render ineffective programs that
use system memory addresses not generated by the IBM translator,
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APAR Error Description / Circumvention

-----------------------------------------------
During a cancellation of a SMP query using XMLAGG or SQL Arrays,
a timing condition can be exposed that allows the freeing of
memory while the data structure is still in use, or being
referenced. This can lead to unpredictable results, if other
code allocates that memory.

Service Keywords:
DbpmServerXXX DbpmServer TDTask structure overwritten
srcB6000103 B6000103
DbpmServerBase

CORRECTION FOR APAR MA47383 :
-----------------------------
The free of the shared memory is now deferred until all threads
complete processing, avoiding the potential storage corruption.

CIRCUMVENTION FOR APAR MA47383 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


None.


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF65472      LIC-DB-OTHER-F/DBPMTRAP-T/QQQSRVE1-RC1720-MSGMCH3203 SQL que
   MF64427      LIC-DB-OTHER-F/DBPMRESOURCE-T/QDBGETMQO-RC1202-MSGMCH3203 VL
   MF64220      OSP-DB-OTHER-WAIT QUERY WAIT ON SMP THREAD MUTEX DBOP-PLANCA
   MF64054      OSP-DB A CURSOR WILL REMAIN IN A FAILED STATE IF TEMPORARY R
   MF63954      F/QDBIOERRQO-MSGCPF5257 QUERY FAILS INTERMITTENTLY USING SMP
   MF63459      SQL-RUN-WAIT SQL SELECT QUERIES HANG. THE JOBS REMAINED IN E
   MF62233      LIC-DB-OTHER-PERFM Internal Database Maintenance
   MF62121      LIC-DB-OTHER-UNPRED Internal Database Maintenance
   MF58200      LIC-DB-UNPRED Index build status file 16 byte alignment
   MF61762      LIC-OTHER-LOOP JOB RUNNING DB QUERY WON'T END EVEN AFTER END
   MF61346      LIC-DB-OTHER-UNPRED Internal Database Maintenance
   MF61223      LIC-DB-OTHER-LOOP a query accessing a table that is being re
   MF61105      LIC-DB-OTHER-F/DBPMTRAP-T/QQQOOOUPCL-RCX'1720'-MSGMCH3203 CR
   MF59999      LIC-DB-OTHER-UNPRED Internal Database Maintenance
   MF59838      LIC-DB-OTHER-UNPRED Enable logging of page header mismatch f
   MF58866      LIC-DB-OTHER-F/QDBSIGEX-MSGCPF5040 Attempt to read by RRN fr
   MF57657      LIC-DB-OTHER-UNPRED Internal Database Maintenance
   MF59085      LIC-DB-OTHER-PERFM Performance improvements for SQE EVI Acce
   MF58643      LIC-DB-OTHER-PERFM Query performing a large sort in overcomm
   MF58585      LIC-DB-OTHER-PERFM An SQL CANCEL of an SMP query may take an
   MF57914      LIC-DB-OTHER-UNPRED Internal Database Maintenance

Summary Information

System.............................. i
Models..............................
Release............................. V7R2M0
Licensed Program............... 5770999
APAR Fixed.......................... View details for APAR MA47383
Superseded by:...................... View fix details for PTF MF66203
Recompile........................... N
Library............................. QSYS
MRI Feature ........................ NONE
Cum Level........................... C9123720


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Document information

More support for: i family

Software version: V7R2M0

Operating system(s): OS/400

Reference #: MF65545

Modified date: 08 January 2019