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MF65544 - 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
---- -------- --------- -------  -------  ------
PRE  5770999  V7R3M0    MF63433   00/00    0000
CO   5770999  V7R3M0    MF65473   00/00    0000
CO   5770999  V7R3M0    MF64420   00/00    0000
CO   5770999  V7R3M0    MF64423   00/00    0000
CO   5770999  V7R3M0    MF61344   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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foregoing.

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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
--------------  ------------------------------------------------------------
   MF65475      LIC-DB-OTHER-F/DBPMTRAP-T/QQQSRVE1-RC1720-MSGMCH3203 SQL que
   MF64422      LIC-DB-OTHER-F/DBPMRESOURCE-T/QDBGETMQO-RC1202-MSGMCH3203 VL
   MF64221      OSP-DB-OTHER-WAIT QUERY WAIT ON SMP THREAD MUTEX DBOP-PLANCA
   MF64053      OSP-DB A CURSOR WILL REMAIN IN A FAILED STATE IF TEMPORARY R
   MF63955      F/QDBIOERRQO-MSGCPF5257 QUERY FAILS INTERMITTENTLY USING SMP
   MF62232      LIC-DB-OTHER-PERFM Internal Database Maintenance
   MF61764      LIC-OTHER-LOOP JOB RUNNING DB QUERY WON'T END EVEN AFTER END
   MF61338      LIC-DB-OTHER-UNPRED Internal Database Maintenance
   MF61230      LIC-DB-OTHER-LOOP a query accessing a table that is being re
   MF63506      SQL-RUN-WAIT SQL SELECT QUERIES HANG. THE JOBS REMAINED IN E

Summary Information

System.............................. i
Models..............................
Release............................. V7R3M0
Licensed Program............... 5770999
APAR Fixed.......................... View details for APAR MA47383
Superseded by:...................... View fix details for PTF MF66609
Recompile........................... N
Library............................. QSYS
MRI Feature ........................ NONE
Cum Level........................... C9116730


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Document information

More support for: i family

Software version: V7R3M0

Operating system(s): OS/400

Reference #: MF65544

Modified date: 11 January 2019