[    3.117534] ip (279) used greatest stack depth: 12344 bytes left
[   20.222064] mpls_gso: MPLS GSO support
[  975.631152] blackhole_netdev_xmit(): Dropping skb.
[  975.631317] blackhole_netdev_xmit(): Dropping skb.
[  975.631355] blackhole_netdev_xmit(): Dropping skb.
[  975.631390] blackhole_netdev_xmit(): Dropping skb.