[    2.067477] ip (294) used greatest stack depth: 12216 bytes left
[   12.059766] mpls_gso: MPLS GSO support
[  787.365281] blackhole_netdev_xmit(): Dropping skb.
[  787.365399] blackhole_netdev_xmit(): Dropping skb.
[  787.365449] blackhole_netdev_xmit(): Dropping skb.
[  787.365527] blackhole_netdev_xmit(): Dropping skb.
[ 1216.032204] blackhole_netdev_xmit(): Dropping skb.
[ 1216.032311] blackhole_netdev_xmit(): Dropping skb.
[ 1216.032381] blackhole_netdev_xmit(): Dropping skb.
[ 1216.032443] blackhole_netdev_xmit(): Dropping skb.