How to fix the Oracle error ORA-02720: osnfop: shmat failed?

In this post, you’ll learn more about the Oracle ErrorORA-02720: osnfop: shmat failed with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-02720: osnfop: shmat failed

Reason for the Error ORA-02720: osnfop: shmat failed

When the fast driver was invoked, processes failed to attach to the shared memory buffer. You probably supplied an illegal shared memory attach address, or the system ran out of data space to accomodate the buffer.

How to fix the Error ORA-02720: osnfop: shmat failed ?

You can fix this error in Oracle by following the below steps

Try invoking the Fast driver later, or use the default attach address.