How to fix the Oracle error ORA-08233: smsdes: cannot unmap SGA?

In this post, you’ll learn more about the Oracle ErrorORA-08233: smsdes: cannot unmap SGA with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-08233: smsdes: cannot unmap SGA

Reason for the Error ORA-08233: smsdes: cannot unmap SGA

The n_core system call failed while detaching from the SGA.

How to fix the Error ORA-08233: smsdes: cannot unmap SGA ?

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

Note nCX error returned; contact your customer support representative.

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