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

Last updated on AUGUST 24, 2021

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.1 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A 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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In this Document
Symptoms
Changes
Cause
Solution
References

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