[    2.710964] ip (301) used greatest stack depth: 12288 bytes left
[   16.326853] mpls_gso: MPLS GSO support
[   27.933677] ip (2588) used greatest stack depth: 12264 bytes left
[  718.018336] blackhole_netdev_xmit(): Dropping skb.
[  718.018426] blackhole_netdev_xmit(): Dropping skb.
[  718.018464] blackhole_netdev_xmit(): Dropping skb.
[  718.018509] blackhole_netdev_xmit(): Dropping skb.