[    2.275343] ip (249) used greatest stack depth: 12304 bytes left
[    3.064081] ip (280) used greatest stack depth: 12272 bytes left
[   19.346016] mpls_gso: MPLS GSO support
[  337.238292] ip (28093) used greatest stack depth: 12112 bytes left
[  728.834302] blackhole_netdev_xmit(): Dropping skb.
[  728.834368] blackhole_netdev_xmit(): Dropping skb.
[  728.834401] blackhole_netdev_xmit(): Dropping skb.
[  728.834444] blackhole_netdev_xmit(): Dropping skb.
[  850.746662] blackhole_netdev_xmit(): Dropping skb.
[  850.746730] blackhole_netdev_xmit(): Dropping skb.
[  850.746770] blackhole_netdev_xmit(): Dropping skb.
[  850.746816] blackhole_netdev_xmit(): Dropping skb.