Several possiblities: It could be a memory leak. In this case the only option you have is to stop/start the application. To be honest i doubt that, because JDEdwards as well as Oracle is standard software. If they'd have memory leaks it would be a well-known fact throughout the industry.

The other possibility is a lock on the shared memory segments which isn't removed. Use "ipcrm" to delete such memory segments and look how far that takes you, then report back, please.

I hope this helps.

bakunin