On Solaris 11.4, Oracle starts some of the processes with the SPAWN() system call instead of the EXECVE() system call. The AMF module cannot access notifications for the processes that are started by using the SPAWN() system call. As a result, the AMF kernel driver module fails to notify the agents about the change in the state of a resource.

Workaround :

For the Oracle agent and the Netlsnr agent, perform the following steps: Set the value of the MonitorFreq key of the IMF attribute to 1. Setting this value ensures that the agents use the traditional poll-based monitoring while the IMF monitoring is not working.