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DB2 - Problembeschreibung

Problem IC84162 Status: Geschlossen

DB2 MAY TRAP WHEN UNFIXING THE LAST PAGE OF A TEMP TABLE DUE TO A TIMING
HOLE ISSUE

Produkt:
DB2 FOR LUW / DB2FORLUW / A10 - DB2
Problembeschreibung:
When dropping a TEMP table, db2 will unfix pages from buffer 
pool. There exist an issue where a trap can possibly occur when 
the last page of a TEMP table is fixed and an attempt to unfix 
the page is made. 
 
The issue can be identified from the stack trace. 
 
<StackTrace> 
sqlbufix 
sqlbufix 
sqldDropTable 
sqldDropTable 
sqldTableDrop 
sqlrl_userTempDrop 
sqlrl_userTempCleanup 
sqlrr_appl_term 
AppStopUsing 
</StackTrace>
Problem-Zusammenfassung:
**************************************************************** 
* USERS AFFECTED:                                              * 
* all                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* When dropping a TEMP table, db2 will unfix pages from buffer * 
*                                                              * 
* pool. There exist a timing hole issue when two unfixers try  * 
* to                                                           * 
* unfix the last page of a TEMP table without the page latch   * 
*                                                              * 
* protection which in turn causes db2 trap.                    * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 version 10.1.001                              * 
****************************************************************
Local-Fix:
verfügbare FixPacks:
DB2 Version 10.1 Fix Pack 1 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 2 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 6 for Linux, UNIX, and Windows

Lösung
Included in db2 version 10.1.001
Workaround
keiner bekannt / siehe Local-Fix
Weitere Daten
Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
12.06.2012
31.10.2012
31.10.2012
Problem behoben ab folgender Versionen (IBM BugInfos)
Problem behoben lt. FixList in der Version
10.1.0.1 FixList
10.5.0.1 FixList