[    2.620152] ip (282) used greatest stack depth: 12360 bytes left
[    6.448941] ip (449) used greatest stack depth: 12344 bytes left
[   15.641279] mpls_gso: MPLS GSO support
[  634.597538] ip (25043) used greatest stack depth: 12192 bytes left
[  754.297322] blackhole_netdev_xmit(): Dropping skb.
[  754.297395] blackhole_netdev_xmit(): Dropping skb.
[  754.297431] blackhole_netdev_xmit(): Dropping skb.
[  754.297469] blackhole_netdev_xmit(): Dropping skb.
[ 1092.047379] blackhole_netdev_xmit(): Dropping skb.
[ 1092.047450] blackhole_netdev_xmit(): Dropping skb.
[ 1092.047504] blackhole_netdev_xmit(): Dropping skb.
[ 1092.047554] blackhole_netdev_xmit(): Dropping skb.