DB2 FOR LUW / DB2FORLUW / 910 - DB2

db2 can trap in SQLODIAGNOSEFREEBLOCKFAILURE  when using 2 phase 
commit. 
 
You can find the following entry in db2diag.log. 
 
2009-11-03-18.28.55.241653-300 I29082A1746        LEVEL: Severe 
PID     : 1237220              TID  : 6942        PROC : db2sysc 
INSTANCE: svtdbm10             NODE : 000         DB   : SDBS 
APPHDL  : 0-118                APPID: 
*LOCAL.svtdbm10.091103215453 
AUTHID  : SVTDBM10 
EDUID   : 6942                 EDUNAME: db2agent (SDBS) 
FUNCTION: DB2 UDB, SQO Memory Management, 
sqloDiagnoseFreeBlockFailure, probe:10 
MESSAGE : Possible memory corruption detected. 
DATA #1 : ZRC, PD_TYPE_ZRC, 4 bytes 
0x820F0002 
DATA #2 : Corrupt block address, PD_TYPE_CORRUPT_BLK_PTR, 8 
bytes 
0x0780000000d53cc0 
DATA #3 : Block header, PD_TYPE_BLK_HEADER, 24 bytes 
0x0780000000D53CA8 : FAB0 7800 0000 0D50 0780 0000 00D5 31C8 
..x....P......1. 
0x0780000000D53CB8 : 0780 0000 00D5 5568 
......Uh 
DATA #4 : Data header, PD_TYPE_BLK_DATA_HEAD, 48 bytes 
0x0780000000D53CC0 : 0000 0000 0000 0360 0000 0000 0000 0009 
.......`........ 
0x0780000000D53CD0 : 0000 0000 0000 0000 0000 0001 0000 0000 
................ 
0x0780000000D53CE0 : 0000 0000 0000 0000 0000 0000 0000 0000 
................ 
CALLSTCK: 
  [0] 0x090000001203CEE8 
sqloDiagnoseFreeBlockFailure__FP8SMemFBlk + 0xE8 
  [1] 0x090000001203CD40 sqlofmblkEx + 0x780 
  [2] 0x0900000012773514 __dl__10sqm_objectFPv + 0x14 
  [3] 0x090000001229B8A0 __dt__11sqlmon_stmtFv + 0x380 
  [4] 0x0900000012292E68 cleanup_sqlmon_conn__11sqlmon_connFv + 
0x448 
  [5] 0x0900000014E02CFC sqlm_a_exit__FP8sqeAgent + 0x5BC 
  [6] 0x09000000126AE96C 
AppStopUsing__14sqeApplicationFP8sqeAgentUcP5sqlca + 0x136C 
  [7] 0x0900000012069EBC sqlesrspWrp__FP14db2UCinterface + 0x9C 
  [8] 0x0900000012067508 sqleUCagentConnectReset + 0xE8 
  [9] 0x09000000132383D0 
sqljsCleanup__FP8sqeAgentP14db2UCconHandle + 0x1F0

**************************************************************** 
* USERS AFFECTED:                                              * 
* All                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Recommended to upgrade to v91fp12                            * 
****************************************************************

Fix available from v91fp12 onwards.

Keep the statement monitor switch OFF, both at the instance 
level as well as at the local level

Vorgänger  : APAR is sysrouted TO one or more of the following: IC83223 IC87850 
Nachfolger : 

Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:

13.01.2012
01.01.2013
01.01.2013

9.1.FP12