[    2.613412] ip (280) used greatest stack depth: 12360 bytes left
[    2.659717] ip (284) used greatest stack depth: 12344 bytes left
[   15.366106] mpls_gso: MPLS GSO support
[   16.317317] ip (1401) used greatest stack depth: 12192 bytes left
[  687.153921] blackhole_netdev_xmit(): Dropping skb.
[  687.153979] blackhole_netdev_xmit(): Dropping skb.
[  687.154008] blackhole_netdev_xmit(): Dropping skb.
[  687.154039] blackhole_netdev_xmit(): Dropping skb.