[    2.861153] ip (292) used greatest stack depth: 12384 bytes left
[   17.046653] mpls_gso: MPLS GSO support
[  643.220637] ip (21119) used greatest stack depth: 12320 bytes left
[ 1073.313456] blackhole_netdev_xmit(): Dropping skb.
[ 1073.313527] blackhole_netdev_xmit(): Dropping skb.
[ 1073.313559] blackhole_netdev_xmit(): Dropping skb.
[ 1073.313591] blackhole_netdev_xmit(): Dropping skb.