Symptom

* Switch reloads due to kernel panic called by skb_under_panic()

Conditions

* During layer 3 to layer 2 address resolution, the data pointer in the skb_buff data structure is not reset properly * See, https://www.systutorials.com/linux-kernels/43785/net-fix-skb_under_panic-oops-in-neigh_resolve_output-linux-3-4-16/ for more detail * As a result, the SNMP daemon, on the switch, fails to append the layer 2 header to the packet and results in a kernel panic

Workaround

* The neighbour resolution function call, neigh_resolve_output(), is resolved in kernel version 3.4.16 * Upgrade to an ACI fixed release

Further Problem Description