I'm afraid it is a known issue that redeployments or even hot deployments can cause this "OutOfMemoryError: PermGen space" error due to a classloader leak.
Personally, I would tell you to avoid redeployments and update your EAP installation with the latest fix.
Thanks for the information. Do you by any chance have a bug/task id in bugzilla or jira? It would be useful to either see the fixed versions or that it hasn't been fixed yet.