[    1.692407] ip (259) used greatest stack depth: 12280 bytes left
[   11.263519] mpls_gso: MPLS GSO support
[  636.836408] ip (3096) used greatest stack depth: 12232 bytes left
[ 1033.320926] blackhole_netdev_xmit(): Dropping skb.
[ 1033.320983] blackhole_netdev_xmit(): Dropping skb.
[ 1033.321027] blackhole_netdev_xmit(): Dropping skb.
[ 1033.321061] blackhole_netdev_xmit(): Dropping skb.