[    2.489847] ip (301) used greatest stack depth: 12384 bytes left
[   15.320892] mpls_gso: MPLS GSO support
[   15.535036] ip (1430) used greatest stack depth: 12368 bytes left
[  327.920186] ip (30405) used greatest stack depth: 12320 bytes left
[  862.088883] blackhole_netdev_xmit(): Dropping skb.
[  862.088941] blackhole_netdev_xmit(): Dropping skb.
[  862.088972] blackhole_netdev_xmit(): Dropping skb.
[  862.089017] blackhole_netdev_xmit(): Dropping skb.