General :: Acore Processes Running Amok On Jelly Bean?

I've been flashing ROMs built on the latest code for Jelly Bean (4.1.1). (The phone is the Galaxy Nexus LTE.)

The battery has been draining fast and upon checking with OS Monitor, I learned that a bunch of android.process.acore processes, sometimes alone and sometimes with another, have been registering high CPU loads continuously until they run the battery down.They are Contacts Storage, User Dictionary, and DRM Protected Content Storage. (DRM is probably not an acore service but it is making trouble just the same.)

I tried winnowing down the problem by deleting the contact store data and resyncing while de-activating third party syncers like HacSync. I even tried cleaning up the contacts via Google on the web. The contacts number only a few hundred. Again, the processes up claiming huge load after the initial sync period.

I scoured the web for reports but have only found mentions dating back to Gingerbread or ICS involving Facebook. Facebook sync doesn't work with JB and again, I have disabled HaxSync.

I also froze User Dictionary with Titanium Backup but that did nothing to keep the process from running, even after a reboot.