[    1.866779] ip (260) used greatest stack depth: 12416 bytes left
[    2.458599] ip (294) used greatest stack depth: 12384 bytes left
[   12.143759] ip (1124) used greatest stack depth: 12360 bytes left
[   14.653892] mpls_gso: MPLS GSO support
[  638.824833] ip (5856) used greatest stack depth: 12320 bytes left
[ 1016.051224] blackhole_netdev_xmit(): Dropping skb.
[ 1016.051312] blackhole_netdev_xmit(): Dropping skb.
[ 1016.051361] blackhole_netdev_xmit(): Dropping skb.
[ 1016.051410] blackhole_netdev_xmit(): Dropping skb.