|
Problem IC65726
|
Status: Closed |
INCORRECT CLEANUP OF CLIENT SUPPORT STRUCTURE IN AGENT AFTER AN OUT OF MEMORY FAILURE LEADS TO A DOUBLE FREE OF MEMORY |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
There is a potential of receiving a segmentation fault and a
'Double free' error if the instance is running low on memory.
db2diag.log will show messages like following:
2009-12-13-13.39.31.438913+060 I9683530A467 LEVEL: Severe
PID : 3072108 TID : 802032 PROC : db2sysc
0
INSTANCE: db2inst1 NODE : 000
EDUID : 802032 EDUNAME: db2agent 0
FUNCTION: DB2 UDB, base sys utilities, sqeAgent::AgentUCSetup,
probe:30
RETCODE : ZRC=0x8B0F0000=-1961951232=SQLO_NOMEM
"No Memory Available (reason code is id of requested
heap)"
DIA8300C A memory heap error has occurred.
2009-12-13-13.39.32.019292+060 I9801817A345 LEVEL: Severe
PID : 3072108 TID : 802032 PROC : db2sysc
0
INSTANCE: db2inst1 NODE : 000
EDUID : 802032 EDUNAME: db2agent 0
FUNCTION: DB2 UDB, SQO Memory Management,
sqloDiagnoseFreeBlockFailure, probe:30
DATA #1 : String, 12 bytes
Double free. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* All *
****************************************************************
* PROBLEM DESCRIPTION: *
* There is a potential of receiving a segmentation fault and a *
* *
* 'Double free' error if the instance is running low on *
* memory. *
* *
* *
* db2diag.log will show messages like following: *
* *
* *
* *
* 2009-12-13-13.39.31.438913+060 I9683530A467 LEVEL: *
* Severe *
* PID : 3072108 TID : 802032 PROC : *
* db2sysc *
* 0 *
* *
* INSTANCE: db2inst1 NODE : 000 *
* *
* EDUID : 802032 EDUNAME: db2agent 0 *
* *
* FUNCTION: DB2 UDB, base sys utilities, *
* sqeAgent::AgentUCSetup, *
* probe:30 *
* *
* RETCODE : ZRC=0x8B0F0000=-1961951232=SQLO_NOMEM *
* *
* "No Memory Available (reason code is id of *
* requested *
* heap)" *
* *
* DIA8300C A memory heap error has occurred. *
* *
* *
* *
* 2009-12-13-13.39.32.019292+060 I9801817A345 LEVEL: *
* Severe *
* PID : 3072108 TID : 802032 PROC : *
* db2sysc *
* 0 *
* *
* INSTANCE: db2inst1 NODE : 000 *
* *
* EDUID : 802032 EDUNAME: db2agent 0 *
* *
* FUNCTION: DB2 UDB, SQO Memory Management, *
* *
* sqloDiagnoseFreeBlockFailure, probe:30 *
* *
* DATA #1 : String, 12 bytes *
* *
* Double free. *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 version 9.7 FP2 *
**************************************************************** |
| Local Fix: |
|
| available fix packs: |
DB2 Version 9.7 Fix Pack 2 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 5 for Linux, UNIX, and Windows
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 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows
|
| Solution |
First fixed in DB2 version 9.7 FP2 |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 20.01.2010
31.05.2010
31.05.2010 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP2
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.2
|
 |
