The Patching page redisplays, showing a status message that your request has been submitted, the Administration tile shows the starting time of the rollback operation, and a Rolling back... message replaces the Rollback button.
Note:
Rollback operations are performed with a minimum of impact on the functioning of the database. However, during part of the operation the database is shut down, making it inaccessible. The database restarts when that portion of the rollback operation completes.