[    1.891270] ip (246) used greatest stack depth: 12304 bytes left
[    2.436561] ip (280) used greatest stack depth: 12272 bytes left
[   15.674151] mpls_gso: MPLS GSO support
[   24.998361] ip (2434) used greatest stack depth: 12248 bytes left
[   27.930367] ip (2700) used greatest stack depth: 12192 bytes left
[  734.862720] blackhole_netdev_xmit(): Dropping skb.
[  734.862780] blackhole_netdev_xmit(): Dropping skb.
[  734.862810] blackhole_netdev_xmit(): Dropping skb.
[  734.862841] blackhole_netdev_xmit(): Dropping skb.
[  889.207740] blackhole_netdev_xmit(): Dropping skb.
[  889.207795] blackhole_netdev_xmit(): Dropping skb.
[  889.207825] blackhole_netdev_xmit(): Dropping skb.
[  889.207851] blackhole_netdev_xmit(): Dropping skb.