[    2.739451] ip (280) used greatest stack depth: 12344 bytes left
[   16.677608] mpls_gso: MPLS GSO support
[  668.364450] blackhole_netdev_xmit(): Dropping skb.
[  668.364523] blackhole_netdev_xmit(): Dropping skb.
[  668.364563] blackhole_netdev_xmit(): Dropping skb.
[  668.364600] blackhole_netdev_xmit(): Dropping skb.
[  682.906235] blackhole_netdev_xmit(): Dropping skb.
[  682.906295] blackhole_netdev_xmit(): Dropping skb.
[  682.906328] blackhole_netdev_xmit(): Dropping skb.
[  682.906361] blackhole_netdev_xmit(): Dropping skb.
[  797.161899] blackhole_netdev_xmit(): Dropping skb.
[  797.161967] blackhole_netdev_xmit(): Dropping skb.
[  797.162002] blackhole_netdev_xmit(): Dropping skb.
[  797.162039] blackhole_netdev_xmit(): Dropping skb.