From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20050922 Fedora/1.0.7-1.1.fc3 Firefox/1.0.7 Description of problem: If cman loses its connection to the cluster, it forcibly shuts down the dlm using dlm_emergency_shutdown. If the dlm is in use by gfs, as it often is, this causes gfs to panic when it finds that its dlm locks have suddenly gone away. The problem is that it's never clear from the gfs panic whether the root cause was an emergency shutdown or something else. In fact, there's often nothing on the console or in the saved messages to clearly show whether an emergency shutdown occured. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. run gfs 2. kick node from cluster 3. Actual Results: gfs/lock_dlm assertion panic Expected Results: loud warning that node was kicked from cluster followed by gfs/lock_dlm assertion panic Additional info:
Added printk("WARNING: dlm_emergency_shutdown\n") to help diagnose panics.
This was added many years ago.