[    2.787585] ip (288) used greatest stack depth: 12360 bytes left
[    6.159103] ip (458) used greatest stack depth: 12344 bytes left
[   16.056822] mpls_gso: MPLS GSO support
[  699.665849] blackhole_netdev_xmit(): Dropping skb.
[  699.665904] blackhole_netdev_xmit(): Dropping skb.
[  699.665936] blackhole_netdev_xmit(): Dropping skb.
[  699.665965] blackhole_netdev_xmit(): Dropping skb.
[  889.675338] blackhole_netdev_xmit(): Dropping skb.
[  889.675394] blackhole_netdev_xmit(): Dropping skb.
[  889.675437] blackhole_netdev_xmit(): Dropping skb.
[  889.675481] blackhole_netdev_xmit(): Dropping skb.
[  988.264155] blackhole_netdev_xmit(): Dropping skb.
[  988.264226] blackhole_netdev_xmit(): Dropping skb.
[  988.264270] blackhole_netdev_xmit(): Dropping skb.
[  988.264309] blackhole_netdev_xmit(): Dropping skb.