[    2.192332] ip (246) used greatest stack depth: 12376 bytes left
[    2.918213] ip (280) used greatest stack depth: 12344 bytes left
[   14.360314] ip (1080) used greatest stack depth: 12328 bytes left
[   18.514675] mpls_gso: MPLS GSO support
[  691.836724] blackhole_netdev_xmit(): Dropping skb.
[  691.836783] blackhole_netdev_xmit(): Dropping skb.
[  691.836814] blackhole_netdev_xmit(): Dropping skb.
[  691.836842] blackhole_netdev_xmit(): Dropping skb.
[  711.465467] blackhole_netdev_xmit(): Dropping skb.
[  711.465522] blackhole_netdev_xmit(): Dropping skb.
[  711.465558] blackhole_netdev_xmit(): Dropping skb.
[  711.465597] blackhole_netdev_xmit(): Dropping skb.