[    2.198382] ip (251) used greatest stack depth: 12376 bytes left
[    2.239493] ip (254) used greatest stack depth: 12328 bytes left
[   18.224859] mpls_gso: MPLS GSO support
[  691.296246] blackhole_netdev_xmit(): Dropping skb.
[  691.296315] blackhole_netdev_xmit(): Dropping skb.
[  691.296355] blackhole_netdev_xmit(): Dropping skb.
[  691.296396] blackhole_netdev_xmit(): Dropping skb.
[ 1103.639159] blackhole_netdev_xmit(): Dropping skb.
[ 1103.639225] blackhole_netdev_xmit(): Dropping skb.
[ 1103.639263] blackhole_netdev_xmit(): Dropping skb.
[ 1103.639297] blackhole_netdev_xmit(): Dropping skb.