AIX 5.3; DB2 v8.1.1.104 FixPak 11; en_US; application and db2 on same machine

Application coredumps on one of two "identical" machines and db2 configurations; dbx shows -

abort() at 0x90000000006502c
ossLockGetConflict(??) at 0x900000000d46d80
sqlnlsGetCpInfoRow__FCUi(0x33300000333) at 0x900000001097f08
sqlnls_Encoding2(??, ??) at 0x9000000010982ac
sqlnlscpca__FP5sqlcaUiT2PUiT2(??, ??, ??, ??, ??) at 0x9000000004097d8
sqljrCodePageConvertSqlca__FP7UCintfcP5sqlcaUsN23( ??, ??, ??, ??, ??) at 0x90000000057fb64
sqljrParseSqlcaGrp__FP7UCintfclP5sqlca__fdpr_1(??, ??, ??) at 0x9000000004ec9d0
sqljrParseSqldard__FP7UCintfclb() at 0x9000000004ed804
sqljrParseDescribePrepareReply__FP7UCintfc(??) at 0x90000000068a11c
sqljrParse__FP7UCintfc() at 0x9000000005ba218
sqljrDrdaArOpen__FP7UCintfcP15db2UCCursorInfo(??, ??) at 0x9000000005b68a8
csmOpen__FP7UCintfcP15db2UCCursorInfo__fdpr_1(??, ??) at 0x9000000004e5db4
CLI_sqlOpen__FP17CLI_STATEMENTINFOP19CLI_ERRORHEAD ERINFO(??, ??) at 0x9000000004e743c
SQLExecute2__FP17CLI_STATEMENTINFOP19CLI_ERRORHEAD ERINFO(??, ??) at 0x9000000004e797c
SQLExecDirectW(0xad000200ad0002, 0x1184ed4a8, 0x0) at 0x900000000355230
Java_COM_ibm_db2_jdbc_app_DB2Statement_SQLExecDire ct() at 0x900000006168588

Any idea why?

Thanks,
Jason