ORA-27123 on RHEL5 (PAE) 32bit when SGA larger than 2Gb (Doc ID 872532.1)

Last updated on MARCH 01, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.1 and later
Linux x86
Linux RHEL 5 (PAE)
***Checked for relevance on 01-Mar-2017***

Symptoms

ORA-27123: unable to attach to shared memory segment when the instance starts.

Changes

Your SGA is configured bigger than 1.7 Gig.

Your O/S is Linux RHEL 5 (PAE).

Cause

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