ORA-27126 During Database Startup After Install Of 10.2.0.4 Patchset On AIX5L (Doc ID 603489.1)

Last updated on DECEMBER 20, 2012

Applies to:

Oracle Server - Enterprise Edition - Version 10.2.0.4 and later
IBM AIX on POWER Systems (64-bit)
IBM AIX Based Systems (64-bit)
This issue may occur on Oracle RDBMS 10.2.0.4 version running on AIX 5L platform.
***Checked for relevance on 20-12-2012***


Symptoms

Following error occurs during database startup immediately after patching a OracleHome from 10.2.0.x to 10.2.0.4

SQL*Plus: Release 10.2.0.4.0 - Production on Mon Jun 9 14:32:37 2008

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SQL> conn /as sysdba
Connected to an idle instance.
SQL> STARTUP UPGRADE
ORA-27126: unable to lock shared memory segment in core
IBM AIX RISC System/6000 Error: 1: Not owner


This database has initialization parameter LOCK_SGA=TRUE.
Error ORA-27126 does not appear when LOCK_SGA parameter set to FALSE.

Changes

The Oracle Home binaries have been patched to 10.2.0.4.0. 

Cause

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