[    2.032752] ip (251) used greatest stack depth: 12616 bytes left
[    2.649881] ip (282) used greatest stack depth: 12344 bytes left
[   15.592194] mpls_gso: MPLS GSO support
[  632.666210] ip (23560) used greatest stack depth: 12288 bytes left
[  994.304279] blackhole_netdev_xmit(): Dropping skb.
[  994.304372] blackhole_netdev_xmit(): Dropping skb.
[  994.304412] blackhole_netdev_xmit(): Dropping skb.
[  994.304460] blackhole_netdev_xmit(): Dropping skb.
[ 1092.955058] blackhole_netdev_xmit(): Dropping skb.
[ 1092.955133] blackhole_netdev_xmit(): Dropping skb.
[ 1092.955176] blackhole_netdev_xmit(): Dropping skb.
[ 1092.955222] blackhole_netdev_xmit(): Dropping skb.