DB2 - Problem description
| Problem IT07722 | Status: Closed |
HADR Standby may crash due to memory corruption with top function sqloCrashOnCriticalMemoryValidationFailure | |
| product: | |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 | |
| Problem description: | |
HADR STANDBY MAY CRASH SUDDENLY with below symptoms :
Error seen in trap: Signal #11 (SIGSEGV): si_addr is
0x0000000000000000, si_code is 0x00000033 (SEGV_ACCERR:Invalid
permissions for mapped object.)
Stacks:
-------Frame------ ------Function + Offset------
0x090000000DF89F0C sqloCrashOnCriticalMemoryValidationFailure +
0x38
0x090000000DFA7C08
diagnoseMemoryCorruptionAndCrash__13SQLO_MEM_POOLFUlCPCcCb +
0x400
0x090000000CE95300
MemTreePut__13SQLO_MEM_POOLFP8SMemNodeUlP17SqloChunkSubgroup +
0x90
0x090000000CE9419C sqlofmblkEx + 0x270
0x090000000AEA565C
sqlplfrDeleteFromFileTbl__FP12SQLPLFR_DBCBPUiUiUlT4CbT6 + 0x510
0x090000000AEC546C
sqlplfrPerformOpenFileTblReclaim__FP12SQLPLFR_DBCBP21SQLPLFR_REQ
_SCAN_NEXT + 0x330
0x090000000A9C2744
sqlplfrFMCloseLog__FP12SQLPLFR_DBCBUiUlbP21SQLPLFR_REQ_SCAN_NEXT
Cb + 0x3F8
0x090000000AEC7D88
sqlplfrFMReadLog__FP12SQLPLFR_DBCBP21SQLPLFR_REQ_SCAN_NEXTP17SQL
PLFR_SCAN_DATA + 0xB64
0x090000000BDFAF50 RunEDU__9sqpLfrEduFv + 0x14A4
Diaglog:
2015-02-06-17.36.05.382058-300 I2989961A597 LEVEL:
Warning
PID : 15335598 TID : 24420 PROC :
db2sysc 0
INSTANCE: inst01 NODE : 000 DB : SAMPLE
HOSTNAME: hostid
EDUID : 24420 EDUNAME: db2hadrs.0.0 (SAMPLE) 0
FUNCTION: DB2 UDB, High Availability Disaster Recovery,
hdrEdu::hdrEduS, probe:20755
MESSAGE : ZRC=0x87800148=-2021654200=HDR_ZRC_BAD_LOG
"HADR standby found bad log"
DATA #1 : String, 99 bytes
HADR standby error handling: will close connection to primary,
then reconnect, and perform a retry.
2015-02-06-17.36.05.386236-300 E2992580A905 LEVEL:
Critical
PID : 15335598 TID : 19537 PROC :
db2sysc 0
INSTANCE: inst01 NODE : 000 DB : SAMPLE
HOSTNAME: hostid
EDUID : 19537 EDUNAME: db2lfr.0 (SAMPLE) 0
FUNCTION: DB2 UDB, SQO Memory Management,
sqloDiagnoseFreeBlockFailure, probe:10
MESSAGE : ADM14001C An unexpected and critical error has
occurred: "Panic".
The instance may have been shutdown as a result.
"Automatic" FODC
(First Occurrence Data Capture) has been invoked and
diagnostic
information has been recorded in directory
"/db2area/inst01/db2dump/FODC_Panic_2015-02-06-17.36.05.385563_0
000
/". Please look in this directory for detailed
evidence about what
happened and contact IBM support if necessary to
diagnose the
problem.
2015-02-06-17.36.05.393213-300 E2993486A1643 LEVEL:
Severe
PID : 15335598 TID : 19537 PROC :
db2sysc 0
INSTANCE: inst01 NODE : 000 DB : SAMPLE
HOSTNAME: hostid
EDUID : 19537 EDUNAME: db2lfr.0 (SAMPLE) 0
FUNCTION: DB2 UDB, SQO Memory Management,
sqloDiagnoseFreeBlockFailure, probe:999
MESSAGE : Memory validation failure, diagnostic file dumped.
DATA #1 : String, 28 bytes
Corrupt pool free tree node.
DATA #2 : File name, 34 bytes
15335598.19537.mem_diagnostics.txt
CALLSTCK: (Static functions may not be resolved correctly, as
they are resolved to the nearest symbol)
[0] 0x090000000DFA7C00
diagnoseMemoryCorruptionAndCrash__13SQLO_MEM_POOLFUlCPCcCb +
0x3F8
[1] 0x090000000CE95300
MemTreePut__13SQLO_MEM_POOLFP8SMemNodeUlP17SqloChunkSubgroup +
0x90
[2] 0x090000000CE9419C sqlofmblkEx + 0x270
[3] 0x090000000AEA565C
sqlplfrDeleteFromFileTbl__FP12SQLPLFR_DBCBPUiUiUlT4CbT6 + 0x510
[4] 0x090000000AEC546C
sqlplfrPerformOpenFileTblReclaim__FP12SQLPLFR_DBCBP21SQLPLFR_REQ
_SCAN_NEXT + 0x330
[5] 0x090000000A9C2744
sqlplfrFMCloseLog__FP12SQLPLFR_DBCBUiUlbP21SQLPLFR_REQ_SCAN_NEXT
Cb + 0x3F8
[6] 0x090000000AEC7D88
sqlplfrFMReadLog__FP12SQLPLFR_DBCBP21SQLPLFR_REQ_SCAN_NEXTP17SQL
PLFR_SCAN_DATA + 0xB64
[7] 0x090000000BDFAF50 RunEDU__9sqpLfrEduFv + 0x14A4
[8] 0x090000000BDC2AAC RunEDU__9sqpLfrEduFv + 0x7E4
[9] 0x0000000000000000 ?unknown + 0x0
[10] 0x090000000CF4C520 EDUDriver__9sqzEDUObjFv + 0x3C0
[11] 0x090000000BEFB440 sqloEDUEntry + 0x38C
[12] 0x090000000080CD30 _pthread_body + 0xF0
[13] 0xFFFFFFFFFFFFFFFC ?unknown + 0xFFFFFFFF
Errpt has below stack information:
ADDITIONAL INFORMATION
sqloCrash 38
sqloCrash 10
diagnoseM 404
MemTreePu 94
sqlofmblk 274
sqlplfrDe 514
sqlplfrPe 334
sqlplfrFM 3FC
sqlplfrFM B68
RunEDU__9 14A8
RunEDU__9 7E8
??
EDUDriver 3C4
sqloEDUEn 390
_pthread_ F4
?? | |
| Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * ALL * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * See SYSROUTE APARs to see where this APAR is addressed * **************************************************************** | |
| Local Fix: | |
| available fix packs: | |
DB2 Version 11.1 Mod1 Fix Pack1 iFix001 for Linux, UNIX, and Windows | |
| Solution | |
| Workaround | |
not known / see Local fix | |
| Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 16.03.2015 09.05.2017 09.05.2017 |
| Problem solved at the following versions (IBM BugInfos) | |
| Problem solved according to the fixlist(s) of the following version(s) | |
| 11.1.1.1 |
|