[    2.156133] ip (250) used greatest stack depth: 12944 bytes left
[    2.826314] ip (284) used greatest stack depth: 12384 bytes left
[   11.664120] ip (830) used greatest stack depth: 12320 bytes left
[   18.132225] mpls_gso: MPLS GSO support
[ 1025.667239] blackhole_netdev_xmit(): Dropping skb.
[ 1025.667313] blackhole_netdev_xmit(): Dropping skb.
[ 1025.667347] blackhole_netdev_xmit(): Dropping skb.
[ 1025.667381] blackhole_netdev_xmit(): Dropping skb.
[ 1053.898543] blackhole_netdev_xmit(): Dropping skb.
[ 1053.898606] blackhole_netdev_xmit(): Dropping skb.
[ 1053.898640] blackhole_netdev_xmit(): Dropping skb.
[ 1053.898678] blackhole_netdev_xmit(): Dropping skb.