[    2.494837] ip (282) used greatest stack depth: 12360 bytes left
[    2.543938] ip (286) used greatest stack depth: 12344 bytes left
[    6.765790] ip (615) used greatest stack depth: 12320 bytes left
[   15.354344] mpls_gso: MPLS GSO support
[   21.699417] ip (2155) used greatest stack depth: 12192 bytes left
[ 1190.770661] blackhole_netdev_xmit(): Dropping skb.
[ 1190.770731] blackhole_netdev_xmit(): Dropping skb.
[ 1190.770762] blackhole_netdev_xmit(): Dropping skb.
[ 1190.770811] blackhole_netdev_xmit(): Dropping skb.