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"WARNING: Not enough physical memory for SHM_SHARE_MMU" is Reported When Starting an Oracle DB Instance. (Doc ID 1469003.1)

Last updated on AUGUST 29, 2019

Applies to:

Solaris Operating System - Version 10 3/05 and later
Oracle Solaris on x86-64 (64-bit)
"WARNING: Not enough physical memory for SHM_SHARE_MMU" is reported when starting an Oracle DB instance on an Intel x64 system running Solaris 10 that supports 1g pages. This document is designed to aid troubleshooting of such an issue and describe one particular cause.


The Alert log shows a message similar to the following during startup:

The last entry confirms the system supports 1g pages.



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