ORA-07445 [KGHBIGASP] Selecting From SYS_CONTEXT (Doc ID 1632424.1)

Last updated on MARCH 12, 2014

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.2 and later
Information in this document applies to any platform.

Symptoms

ORA-07445 error reported in the alert log like:

...
Mon Dec 09 10:54:23 2013
Exception [type: SIGSEGV, Address not mapped to object] [ADDR:0x38] [PC:0x90A53F4, kghbigasp()+34] [flags: 0x0, count: 1]
Errors in file /u01/app/oracle/diag/rdbms/obid4p1/obid4p1a/trace/obid4p1a_ora_61082.trc  (incident=835203):
ORA-07445: exception encountered: core dump [kghbigasp()+34] [SIGSEGV] [ADDR:0x38] [PC:0x90A53F4] [Address not mapped to object] []
Incident details in: /u01/app/oracle/diag/rdbms/obid4p1/obid4p1a/incident/incdir_835203/obid4p1a_ora_61082_i835203.trc
...


The incident detail trace file shows next sql:

----- Current SQL Statement for this session (sql_id=4h5zgyp5ttng4) -----
SELECT SYS_CONTEXT ('USERENV', 'GLOBAL_CONTEXT_MEMORY') FROM DUAL


The call stack from the trace file includes functions like:

... kghbigasp kghasp kzctxeusrenv kzctxappctxvalget evactx evaopn2 kpofcr ...

Changes

A global context flush was recently performed, i.e.

Cause

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