[    2.500269] ip (284) used greatest stack depth: 12384 bytes left
[   14.915076] mpls_gso: MPLS GSO support
[   16.071521] ip (1470) used greatest stack depth: 12320 bytes left
[  789.099456] blackhole_netdev_xmit(): Dropping skb.
[  789.099536] blackhole_netdev_xmit(): Dropping skb.
[  789.099581] blackhole_netdev_xmit(): Dropping skb.
[  789.099627] blackhole_netdev_xmit(): Dropping skb.