That's a mismatch between userland and kernel. Check with cfeist about which packages you have and which need to be upgraded.
Please try this cman userland package, it should be compatible with the cman-kernel package you're using. http://porkchop.redhat.com/dist/4E-cluster-U4/cman/1.0.6-1/ Let me know how this works.
CRM closed, closing Internal Status set to 'Resolved' Status set to: Closed by Tech Resolution set to: 'Auto Closed' This event sent from IssueTracker by pdemauro issue 93926