LVM commands causes node panic on Power PC

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Environment

SUSE Linux Enterprise Server 11 Service Pack 4 (SLES 11 SP4)

Situation

HAE cluster setup with dlm/clvm. After installation LVM commands will cause the server to panic in dlm's _request_lock routine.

Resolution

We found that specifying the nodeID on the etc/corosync/corosync.conf file prevents the problem from happening, however it is more desirable to have a generic corosync.conf. Changing the "clear_node_high_bit: new" (by default) to "clear_node_high_bit: yes" in /etc/corosync/corosync.conf does resolve the issue without specifying the nodeID

Additional Information

Disclaimer

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