[    2.521210] ip (284) used greatest stack depth: 12272 bytes left
[   14.392312] mpls_gso: MPLS GSO support
[   15.340229] ip (1461) used greatest stack depth: 12248 bytes left
[  649.760611] ip (2103) used greatest stack depth: 12128 bytes left
[  698.903980] blackhole_netdev_xmit(): Dropping skb.
[  698.904073] blackhole_netdev_xmit(): Dropping skb.
[  698.904123] blackhole_netdev_xmit(): Dropping skb.
[  698.904178] blackhole_netdev_xmit(): Dropping skb.