ce Adapters on Private Interconnect Observe Timeouts and Cause Node Panics (4746175)

Problem Summary: Clusters that use ce adapters on the private interconnect observe path timeouts and subsequent node panics if one or more cluster nodes have more than 4 CPUs.

Workaround: Set the ce_taskq_disable parameter in the ce driver by adding the following line to /etc/system file on all cluster nodes.

set ce:ce_taskq_disable=1

Then, reboot the cluster nodes. Consider quorum when you reboot cluster nodes. Setting this parameter ensures that heartbeats (and other packets) are always delivered in the interrupt context thereby eliminating the path timeouts and the subsequent panics.