|
Problem IC65372
|
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 / 950 - 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 *
* onmemory.db2diag.log will show messages like *
* following:2009-12-13-13.39.31.438913+060 I9683530A467 *
* LEVEL:SeverePID : 3072108 TID : 802032 *
* PROC :db2sysc0INSTANCE: db2inst1 NODE : *
* 000EDUID : 802032 EDUNAME: db2agent 0FUNCTION: *
* DB2 UDB, base sys *
* utilities,sqeAgent::AgentUCSetup,probe:30RETCODE : *
* ZRC=0x8B0F0000=-1961951232=SQLO_NOMEM"No Memory Available *
* (reason code is id ofrequestedheap)"DIA8300C A memory heap *
* error has occurred.2009-12-13-13.39.32.019292+060 *
* I9801817A345 LEVEL:SeverePID : 3072108 *
* TID : 802032 PROC :db2sysc0INSTANCE: db2inst1 *
* NODE : 000EDUID : 802032 EDUNAME: db2agent *
* 0FUNCTION: DB2 UDB, SQO Memory *
* Management,sqloDiagnoseFreeBlockFailure, probe:30DATA #1 : *
* String, 12 bytesDouble free. *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 version 9.5 FP6 *
**************************************************************** |
| Local Fix: |
|
| available fix packs: |
DB2 Version 9.5 Fix Pack 6a for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 10 for Linux, UNIX, and Windows
|
| Solution |
First fixed in DB2 version 9.5 FP6 |
| Workaround |
not known / see Local fix |
| BUG-Tracking |
forerunner : APAR is sysrouted TO one or more of the following: IC65726
follow-up : |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 04.01.2010
10.06.2010
10.06.2010 |
| Problem solved at the following versions (IBM BugInfos) |
9.5.FP6
|
| Problem solved according to the fixlist(s) of the following version(s) |
