DB2 might crash during processing of the LOAD and as a
consequence produce a core file during FODC_Panic execution.
The symptoms of the problem are corrupted memory with "2020
2020" footprint during sqluCleanupCLI function call:
2014-12-12-14.12.21.639107-300 I251025E1918 LEVEL: Severe
PID : 18979 TID : 140737115055872
PROC:db2sysc 1
INSTANCE: db2inst1 NODE : 001 DB : DBNAME
APPHDL : 1-243 APPID: *N0.db2inst1.1412121912301
AUTHID : DBINST1
EDUID : 100 EDUNAME: db2agent (DBNAME) 1
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 0x00007fff5f11f688
DATA #3 : Block header, PD_TYPE_BLK_HEADER, 24 bytes
0x00007FFF5F11F670 : 2020 2020 0000 0000 0000 0000 0000 0000
............
0x00007FFF5F11F680 : 0000 0000 0000 0000........
DATA #4 : Data header, PD_TYPE_BLK_DATA_HEAD, 48 bytes
0x00007FFF5F11F688 : 0800 0000 0000 0000 F1B8 4B5F CD01 2F36
..........K_../6
0x00007FFF5F11F698 : 10F1 F5FF 0700 B0FA 0000 0000 0000 0000
................
0x00007FFF5F11F6A8 : 10F1 F5FF 0700 B0FA 489F 115F FF7F 0000
........H.._....
CALLSTCK: (Static functions may not be resolved correctly, as
they are resolved to the nearest symbol)
[0] 0x00007FFFF35CD2DE pdLog + 0x398
[1] 0x00007FFFF517942E
/udb/instance/db2inst1/sqllib/lib64/libdb2e.so.1 + 0x291C42E
[2] 0x00007FFFF5EF33B1 sqlofmblkEx + 0x91B
[3] 0x00007FFFF5A5D4B2
_Z18sqluCleanupCLILdCBP20sqlu_loadapi_load_cb + 0x276
[4] 0x00007FFFF5A5BA1A _Z18sqluCleanupRemLdCBPP13SQLU_REMLD_CB
+ 0x1B8
[5] 0x00007FFFF5B8B38A
_ZN24sqlusCLoadMPPCoordinator8iCleanUpEv + 0x470
[6] 0x00007FFFF5B8AD95
_Z28sqlu_register_table_load_MPPP26sqluCLoadRequestDescriptorP15
sql_static_dataPb + 0x1B9
[7] 0x00007FFFF59485A1 _Z17sqluvtld_route_inP12SQLE_DB2RA_T +
0x71D
[8] 0x00007FFFF5A5F32C _Z15sqluTermConnectP14db2UCinterface +
0x9A
[9] 0x00007FFFF377421D sqleUCagentConnectReset + 0xA1
The problem had been introduced in DB2 9.7 fixpack 10. |
