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Is there a way to have a RHEL 6 node in a two-node cluster panic or reboot itself when there's a problem instead of needing power or storage based fencing?

Solution In Progress - Updated 2014-03-19T14:26:47+00:00 -

Issue

Can I configure cluster nodes to use panics or reboots of some kind as a fence mechanism?
I don't have access to power fencing or shared storage. How can I configure the cluster nodes to fence themselves?

Environment

Red Hat Enterprise Linux (RHEL) 6 with the High Availability Add On
cman or cman/pacemaker cluster
Two-node cluster
No direct access to shared SCSI storage or power fencing mechanisms

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