[    2.637018] ip (279) used greatest stack depth: 12272 bytes left
[   11.732971] ip (974) used greatest stack depth: 12248 bytes left
[   15.690014] mpls_gso: MPLS GSO support
[  655.057117] ip (28482) used greatest stack depth: 12144 bytes left
[  954.316313] blackhole_netdev_xmit(): Dropping skb.
[  954.316376] blackhole_netdev_xmit(): Dropping skb.
[  954.316410] blackhole_netdev_xmit(): Dropping skb.
[  954.316444] blackhole_netdev_xmit(): Dropping skb.