How to fix the Oracle error ORA-19958: potential deadlock involving DIAG process?

In this post, you’ll learn more about the Oracle ErrorORA-19958: potential deadlock involving DIAG process with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-19958: potential deadlock involving DIAG process

Reason for the Error ORA-19958: potential deadlock involving DIAG process

DIAG requested a control file operation that may lead to a deadlock

How to fix the Error ORA-19958: potential deadlock involving DIAG process ?

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

Try last operation later when the control file is released