Getting messages "ORA-27123: Unable to attach to shared memory segment"

Solution Unverified - Updated -

Issue

  • Server Hanged with memory issues with errors :
ORA-27123: Unable to attach to shared memory segment
Cause: shmat() call failed
Action: check permissions on segment, contact Oracle support

Environment

  • Red Hat Enterprise Linux 6
  • Oracle

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content