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DB2 - Problembeschreibung

Problem IC81831 Status: Geschlossen

DB2 PAGE CLEANERS MAY RECEIVE SIG 11 WHEN 'DB2_USE_ALTERNATE_PAG
E_CLEANING=ON' AND 'SET WRITE SUSPEND/RESUME' IS USED

Produkt:
DB2 FOR LUW / DB2FORLUW / 970 - DB2
Problembeschreibung:
While the cleaner was handling the pages list, a 'set write 
suspend' came in and prevented pages to be written. 
This sent the cleaner into sleep. When it resumes after a 'set 
write resume' has been issued, it assumes the current list can 
only be a dirty list. 
Such that the page cleaner will trap with invalid pointer 
access. 
 
The trap file would show a stack trace similar to the one below 
 
.sqlbClnrCheckAndPause.fdpr.clone.1805__FP12SQLB_CLNR_CBPb + 
0x2B8 
sqlbClnrEntryPoint__FP12sqbPgClnrEdu + 0xD28 
sqlbClnrEntryPoint__FP12sqbPgClnrEdu + 0x24 
RunEDU__12sqbPgClnrEduFv + 0x34 
__9sqzEDUObjFv + 0x1F0 
sqloEDUEntry + 0x260 
 
It might vary because of the way the compiler generated the 
code. The real stack, however, should be the following (only 
showing the top part): 
 
sqlbClnrCheckAndPause() 
sqlbClnrFindWork() 
sqlbClnrEntryPoint() 
sqbPgClnrEdu::RunEDU()
Problem-Zusammenfassung:
**************************************************************** 
* USERS AFFECTED:                                              * 
* all platforms                                                * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* upgrade to db2 v97fp6                                        * 
****************************************************************
Local-Fix:
Disabling APC (setting DB2_USE_ALTERNATE_PAGE_CLEANING to NO)
verfügbare FixPacks:
DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows

Lösung
The problem was first fixed in DB2 LUW Version 9.7 Fix Pack 6
Workaround
keiner bekannt / siehe Local-Fix
Bug-Verfolgung
Vorgänger  : APAR is sysrouted TO one or more of the following: IV16771 IC84499 
Nachfolger : 
Weitere Daten
Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
05.03.2012
22.05.2012
22.05.2012
Problem behoben ab folgender Versionen (IBM BugInfos)
9.7.FP6
Problem behoben lt. FixList in der Version
9.7.0.6 FixList