Couchbase continually crashes and restart when Couch bucket is created in OpenVZ environment

I have done some QA to help narrow down an issue I have discovered.

1. Setup Couchbase from 64bit Ubunut 12 package.
2. Next select a CouchDB bucket.
3. Next complete the setup.

Expected: Couchbase server and bucket functioning.

Actual: The Couchbase server appears to just keep crashing / i.e. restarting every few seconds.

If I remove the couchDB bucket no crashes / restart occur.
If I create a memcached bucket only the server is functioning fine and the bucket functions as expected.

This is on a OpenVZ VPS container running Ubuntu 12.04 with a CentOS 6 OS as the host on 2.6.32 kernel.

I went ahead and setup couchbase on another Ubuntu 12.04 dedicated server (exact replica of the above server without the virtualization) and no issues.

What debug output information from the logs would you like to help identify this issue?