During application initialization certain database components
are initialized using db heap memory. If the database runs out
of this db heap memory the application initialization would fail
and these database components would be terminated and freed.
This particular error is due to a logic error in which a certain
component is not terminated and cleaned up properly when the
application initialization fails and leaves certain freed memory
to be de-referenced later.
The following db2diag.log snippet can be seen before the trap
occurs.
[...]
2116556 2010-04-13-04.49.27.641871-240 E94769794E721 LEVEL:
Warning
2116557 PID : 28617 TID : 47708077287744PROC
: db2sysc
2116558 INSTANCE: svtdbm2 NODE : 000 DB :
ADD
2116559 APPHDL : 0-4924 APPID:
*LOCAL.svtdbm2.100413084944
2116560 AUTHID : SVTDBM2
2116561 EDUID : 3495 EDUNAME: db2agent (ADD)
2116562 FUNCTION: DB2 UDB, SQO Memory Management,
sqloMemLogPoolConditions, probe:30
2116563 DATA #1 : <preformatted>
2116564 Out of memory failure for Database Heap (DBHEAP).
2116565 Requested block size : 7952 bytes.
2116566 Physical heap size : 48431104 bytes.
2116567 Configured heap size : 48431104 bytes.
2116568 Unreserved memory used by heap : 0 bytes.
2116569 Unreserved memory left in set : 14680064 bytes.
2117067 2010-04-13-04.49.28.707575-240 I94791120E492 LEVEL:
Warning
2117068 PID : 28617 TID : 47708077287744PROC
: db2sysc
2117069 INSTANCE: svtdbm2 NODE : 000 DB :
ADD
2117070 APPHDL : 0-4924 APPID:
*LOCAL.svtdbm2.100413084944
2117071 AUTHID : SVTDBM2
2117072 EDUID : 3495 EDUNAME: db2agent (ADD)
2117073 FUNCTION: DB2 UDB, RAS/PD component,
pdEDUIsInDB2KernelOperation, probe:600
2117074 DATA #1 : String, 22 bytes
2117075 _Z17sqlpEndUowRuntime
2117076 DATA #2 : String, 4 bytes
2117077 sqlp
2117078
2117079 2010-04-13-04.49.28.708031-240 I94791613E558 LEVEL:
Severe
2117080 PID : 28617 TID : 47708077287744PROC
: db2sysc
2117081 INSTANCE: svtdbm2 NODE : 000 DB :
ADD
2117082 APPHDL : 0-4924 APPID:
*LOCAL.svtdbm2.100413084944
2117083 AUTHID : SVTDBM2
2117084 EDUID : 3495 EDUNAME: db2agent (ADD)
2117085 FUNCTION: DB2 UDB, RAS/PD component,
pdResilienceIsSafeToSustain, probe:800
2117086 DATA #1 : String, 37 bytes
2117087 Trap Sustainability Criteria Checking
2117088 DATA #2 : Hex integer, 8 bytes
2117089 0x0000000000023840
2117090 DATA #3 : Boolean, 1 bytes
2117091 false
2117093 2010-04-13-04.49.28.709538-240 I94792172E556 LEVEL:
Error
2117094 PID : 28617 TID : 47708077287744PROC
: db2sysc
2117095 INSTANCE: svtdbm2 NODE : 000 DB :
ADD
2117096 APPHDL : 0-4924 APPID:
*LOCAL.svtdbm2.100413084944
2117097 AUTHID : SVTDBM2
2117098 EDUID : 3495 EDUNAME: db2agent (ADD)
2117099 FUNCTION: DB2 UDB, base sys utilities,
sqleagnt_sigsegvh, probe:1
2117100 MESSAGE : Error in agent servicing application with
coor_node:
2117101 DATA #1 : Hexdump, 2 bytes
2117102 0x00002B63E6C0F912 : 0000
..
2117197 2010-04-13-04.49.28.710505-240 I94797825E570 LEVEL:
Error
2117198 PID : 28617 TID : 47708077287744PROC
: db2sysc
2117199 INSTANCE: svtdbm2 NODE : 000 DB :
ADD
2117200 APPHDL : 0-4924 APPID:
*LOCAL.svtdbm2.100413084944
2117201 AUTHID : SVTDBM2
2117202 EDUID : 3495 EDUNAME: db2agent (ADD)
2117203 FUNCTION: DB2 UDB, base sys utilities,
sqleagnt_sigsegvh, probe:10
2117204 MESSAGE : Error in agent servicing application with
APPLICATION NAME:
2117205 DATA #1 : Hexdump, 8 bytes
2117206 0x00000002010A6412 : 666C 7461 626C 6573
fltables
[...]
A trap file can be generated. One instance of a stack trace is
the following:
<StackTrace>
-----FUNC-ADDR---- ------FUNCTION + OFFSET------
0x00002B63DC3CF7FF ossDumpStackTraceEx + 0x01ef
(/home/svtdbm2/sqllib/lib64/libdb2osse.so.1)
0x00002B63DC3CA5C6 _ZN11OSSTrapFile6dumpExEmiP7siginfoPvm +
0x00cc
(/home/svtdbm2/sqllib/lib64/libdb2osse.so.1)
0x00002B63D96EE7A9 sqlo_trce + 0x03fb
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D9732D09 sqloEDUCodeTrapHandler + 0x0243
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D6F01C00 address: 0x00002B63D6F01C00 ; dladdress:
0x00002B63D6EF4000 ; offset in lib: 0x000000000000DC00 ;
(/lib64/libpthread.so.0)
0x00002B63D8263018 _Z17sqlpEndUowRuntimeP8sqeAgentP9SQLP_DBCB +
0x00c6
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D825F178 address: 0x00002B63D825F178 ; dladdress:
0x00002B63D700D000 ; offset in lib: 0x0000000001252178 ;
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D825DD14
_Z8sqlpxrbkP8sqeAgentP15SQLXA_CALL_INFOPiP9SQLP_GXIDPP11sqlo_xla
tch
+ 0x03dc
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D8260FC4 _Z8sqlptfrgP8sqeAgentm + 0x0764
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D8266395 _Z8sqlpdenvP8sqeAgentb + 0x01bd
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D7E49EF7
_ZN16sqeLocalDatabase13TermDbConnectEP8sqeAgentP5sqlcai + 0x03e1
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D8B4EB09
_ZN14sqeApplication21HandleStartUsingErrorEP8sqeAgentP8SQLE_BWAP
5sqlcaP22SQLESRSU_STATUS_VECTOR
+ 0x0547
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D7E30B7E
_ZN14sqeApplication13AppStartUsingEP8SQLE_BWAP8sqeAgentccP5sqlca
Pc
+ 0x06a4
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D7E2C97E address: 0x00002B63D7E2C97E ; dladdress:
0x00002B63D700D000 ; offset in lib: 0x0000000000E1F97E ;
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D7E2B7B0
_ZN14sqeApplication13AppLocalStartEP14db2UCinterface + 0x01b8
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D7E8720D _Z11sqlelostWrpP14db2UCinterface + 0x001d
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D7E88942 _Z14sqleUCengnInitP14db2UCinterfacet + 0x051a
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D7E87835 sqleUCagentConnect + 0x02b5
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D7F187D2
_Z18sqljsConnectAttachP13sqljsDrdaAsCbP14db2UCinterface + 0x0086
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D7EF5D17
_Z16sqljs_ddm_accsecP14db2UCinterfaceP13sqljDDMObject + 0x007f
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D7EED262
_Z17sqljsParseConnectP13sqljsDrdaAsCbP13sqljDDMObjectP14db2UCint
erface
+ 0x0068
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D7EED783
_Z10sqljsParseP13sqljsDrdaAsCbP14db2UCinterfaceP8sqeAgentb +
0x035b
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D7EE2AC3 address: 0x00002B63D7EE2AC3 ; dladdress:
0x00002B63D700D000 ; offset in lib: 0x0000000000ED5AC3 ;
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D7EE99B2 address: 0x00002B63D7EE99B2 ; dladdress:
0x00002B63D700D000 ; offset in lib: 0x0000000000EDC9B2 ;
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D7EE7341 address: 0x00002B63D7EE7341 ; dladdress:
0x00002B63D700D000 ; offset in lib: 0x0000000000EDA341 ;
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D7EE70D0 _Z17sqljsDrdaAsDriverP18SQLCC_INITSTRUCT_T +
0x0102
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D7E221D9 _ZN8sqeAgent6RunEDUEv + 0x09f7
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D84CD2BC _ZN9sqzEDUObj9EDUDriverEv + 0x00a6
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D84CD213 _Z10sqlzRunEDUPcj + 0x0009
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D8246702 sqloEDUEntry + 0x02f4
(/home/svtdbm2/sqllib/lib64/libdb2e.so.1)
0x00002B63D6EFA143 address: 0x00002B63D6EFA143 ; dladdress:
0x00002B63D6EF4000 ; offset in lib: 0x0000000000006143 ;
(/lib64/libpthread.so.0)
0x00002B63DCD708CD __clone + 0x006d
(/lib64/libc.so.6)
</StackTrace> |
