when we are trying to perofrm inserts (parallelly 6 jobs), out of theose, 2 jobs are getting succeeded. and rest 4 are failing and we are getting a trace file (as well core file) trace output is like this: Redo thread mounted by this instance: 1 Oracle process number: 22 Unix process pid: 11366, image: oracle@srvr30 (TNS V1-V3) *** 2005-10-23 06:53:38.653 *** SESSION ID:(49.46806) 2005-10-23 06:53:38.648 Exception signal: 11 (SIGSEGV), code: 1 (Address not mapped to object), addr: 0xffffffff7bf00000, PC: [0x100602000, 0000000100 602000] *** 2005-10-23 06:53:38.658 ksedmp: internal or fatal error ORA-07445: exception encountered: core dump [0000000100602000] [SIGSEGV] [Address not mapped to object] [0xFFFFFFFF7BF00000] [ ] [] Current SQL statement for this session: INSERT INTO ifdata SELECT rpad('B230', 4), /* Record Type */ rpad(item_id, iffun.get_sysparmlength(519)), /* Part Number */ rpad('RepCsgn', iffun.get_sysparmlength(500)) || /* Schedule Type AbbreviationID */ rpad(location, iffun.get_sysparmlength(513)) || /* Location */ rpad(' ', iffun.get_sysparmlength(511)) || /* Detail Key */ to_char(sysdate,'YYYYMMDD') || /* Period */ rpad('O', 1) || /* Increment/Override */ rpad(on_hold_qty, 10) /* Quantity */ FROM gemed_prt_qty WHERE item_id in (select partnum from GEMED_B100_ITEM WHERE repairable = 'Y') ----- PL/SQL Call Stack ----- object line object handle number name 3a1d6c690 2511 package body IFGEMED.GEMED_PLAN_PROC 3a12ea2d8 5 anonymous block 3a1d92518 1120 package body SYS.DBMS_SYS_SQL 3a1da46a0 323 package body SYS.DBMS_SQL 3a1e708f8 712 package body IFGEMED.IFRUN 3a1e708f8 566 package body IFGEMED.IFRUN 3a1e3abb0 1 anonymous block ----- Call Stack Trace ----- calling call entry argument values in hex location type point (? means dubious value) -------------------- -------- -------------------- ---------------------------- ksedmp()+328 CALL ksedst()+0 00000000B ? 000000000 ? 000000000 ? 00000004A ? FFFFFFFF7FFEEB78 ? BD11EFBF:000027D2 77 0 10280 1 0x000000000000004D BD19F30C:000027D3 77 0 10280 1 0x000000000000004D KSTDUMP: End of in-memory trace dump ssexhd: crashing the process... Shadow_Core_Dump = PARTIAL ~ ~ can someone throw some light on this, why we are getting the core when running 6 parallel inserts. Thanks and regards, Raj --------------------------------- Yahoo! FareChase - Search multiple travel sites in one click.