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ORA-27302: skgxpmap1: ORA-27303: maximum(512) number of regions/context exceeded 512 (Doc ID 2171341.1)

Last updated on MARCH 23, 2019

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.


In RAC environment, following errors are raised:

ORA-00603: ORACLE server session terminated by fatal error
ORA-27544: Failed to map memory region for export
ORA-27300: OS system dependent operation:skgxpmmap failed with status: 0
ORA-27301: OS failure message: Error 0
ORA-27302: failure occurred at: skgxpmap1
ORA-27303: additional information: maximum(512) number of regions/context exeeded 512



Customer upgraded the Database from to


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