[    1.958570] ip (246) used greatest stack depth: 12288 bytes left
[    2.670802] ip (280) used greatest stack depth: 12272 bytes left
[   14.903165] ip (1217) used greatest stack depth: 12248 bytes left
[   16.385601] mpls_gso: MPLS GSO support
[  929.703392] blackhole_netdev_xmit(): Dropping skb.
[  929.703472] blackhole_netdev_xmit(): Dropping skb.
[  929.703507] blackhole_netdev_xmit(): Dropping skb.
[  929.703539] blackhole_netdev_xmit(): Dropping skb.