|
Problem IT23185
|
Status: Closed |
MEMORY CORRUPTION DURING XA PROCESSING ON FEDERATED OBJECT
|
| product: |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 |
| Problem description: |
The corruption may happen during distributed transaction
processing while it rollbacks operation on federated object
(nickname).
Once it happens, following stack is logged to db2diag.log:
2017-11-14-15.34.55.008298-300 E2055403A2417 LEVEL:
Severe
PID : 39781600 TID : 326331 PROC :
db2sysc 0
INSTANCE: ######## NODE : 000 DB :
########
APPHDL : 0-8317 APPDB:
xx.xx.xx.xx.xxxxx.171130050011
AUTHID : STMTS HOSTNAME: ########
EDUID : 326331 EDUNAME: db2agent (########) 0
FUNCTION: DB2 UDB, SQO Memory Management,
sqloDiagnoseFreeBlockFailure, probe:999
MESSAGE : Memory validation failure, diagnostic file dumped.
DATA #1 : String, 21 bytes
Invalid block header.
DATA #2 : File name, 35 bytes
39781600.326331.mem_diagnostics.txt
CALLSTCK: (Static functions may not be resolved correctly, as
they are resolved to the nearest symbol)
[0] 0x0900000032C40F54
diagnoseMemoryCorruptionAndCrash__13SQLO_MEM_POOLFUlCPCcCb +
0x444
[1] 0x0900000032C4183C
@88@sqloDiagnoseFreeBlockFailure__FP8SMemFBlkCb + 0x754
[2] 0x09000000346E6D94 sqlofmblkEx + 0x10
[3] 0x0900000035644224
sqlpxrbk__FP8sqeAgentP15SQLXA_CALL_INFOP9SQLP_GXIDPP11sqlo_xlatc
h + 0x46CC
[4] 0x0900000035641758
sqlpxrbk__FP8sqeAgentP15SQLXA_CALL_INFOP9SQLP_GXIDPP11sqlo_xlatc
h + 0x1C00
[5] 0x0000000000000000 ?unknown + 0x0
[6] 0x090000003560E48C
sqlpxrbk__FP8sqeAgentP15SQLXA_CALL_INFOP9SQLP_GXIDPP11sqlo_xlatc
h + 0x558
[7] 0x0900000035610550
sqlrrbck_dps__FP8sqlrr_cbiN22P15SQLXA_CALL_INFOP9SQLP_GXID +
0xDE0
[8] 0x0900000035613FD4
sqlrrbck__FP8sqlrr_cbiN32P15SQLXA_CALL_INFO + 0x1998
[9] 0x0900000033B30A34 sqlrr_xrollback__FP14db2UCinterface +
0x1D6C
[10] 0x0900000030632F4C sqljsSyncRollback__FP14db2UCinterface
+ 0x6E0
[11] 0x0900000033B95A70
sqljsParseRdbAccessed__FP13sqljsDrdaAsCbP13sqljDDMObjectP14db2UC
interface + 0x9E30
[12] 0x14F70E17B42CD369 ?unknown + 0x14F70E18B42CD36C
[13] 0x0900000033BE4370
@72@sqljsSqlam__FP14db2UCinterfaceP8sqeAgentb + 0x1108
[14] 0x0900000033BE3F64
@72@sqljsSqlam__FP14db2UCinterfaceP8sqeAgentb + 0xCFC
[15] 0x09000000359C970C
@72@sqljsDriveRequests__FP8sqeAgentP14db2UCconHandle + 0xA8
[16] 0x09000000359CA21C
@72@sqljsDrdaAsInnerDriver__FP18SQLCC_INITSTRUCT_Tb + 0x5F8
[17] 0x090000003320E91C RunEDU__8sqeAgentFv + 0x4C7A8
[18] 0x0900000033239AD4 RunEDU__8sqeAgentFv + 0x124
[19] 0x0900000034763550 EDUDriver__9sqzEDUObjFv + 0x134
[20] 0x0900000034CD6B80 sqloEDUEntry + 0x3A0
[21] 0x0900000000567E10 _pthread_body + 0xF0
[22] 0xFFFFFFFFFFFFFFFC ?unknown + 0xFFFFFFFF |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* FEDERATED *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to Db2 Version 10.5 Fix Pack 10 *
**************************************************************** |
| Local Fix: |
To workaround the issue, 2 phase commit should be set for
federated server:
ALTER SERVER SERVERNAME OPTIONS (ADD DB2_TWO_PHASE_COMMIT 'Y') |
| Solution |
|
| Workaround |
not known / see Local fix |
| BUG-Tracking |
forerunner :
follow-up : IT24657 |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 16.11.2017
16.07.2018
16.07.2018 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
