I want to be able to trace the EMNC (Event Co-Ordinator) process alongside the Event Slaves (e00*) p

We interface to Oracle Events to notify our application of any changes in the state of the application's processes. We have noticed that the events are intermittent in that sometimes the notification is sent successfully and sometimes it appears the notification was either not sent or the sending of the notification did not complete successfully.

I therefore would like to debug the EMNC process. In the past, I have used ORADEBUG to debug the process, which was just a single process called EMN0. However, using Oracle 11.2.0.4, Oracle now uses the EMNC process which co-ordinates its workload amongst a number of slave processes, which are noted as e000 - e00*. Any one of these slave processes can be tasked with issuing a notification message to any of the subscribing processes. I would like to know how I can debug ALL the Event Monitor processes, i.e. the EMNC and e00* processes at the same time to