[    2.752190] ip (281) used greatest stack depth: 12344 bytes left
[   15.248908] ip (1121) used greatest stack depth: 12192 bytes left
[   18.243183] mpls_gso: MPLS GSO support
[  773.369120] blackhole_netdev_xmit(): Dropping skb.
[  773.369266] blackhole_netdev_xmit(): Dropping skb.
[  773.369308] blackhole_netdev_xmit(): Dropping skb.
[  773.369346] blackhole_netdev_xmit(): Dropping skb.