[    1.542769] ip (260) used greatest stack depth: 12232 bytes left
[    1.904886] ip (294) used greatest stack depth: 12200 bytes left
[    9.940977] ip (1135) used greatest stack depth: 11928 bytes left
[   11.607984] mpls_gso: MPLS GSO support
[ 1122.390027] blackhole_netdev_xmit(): Dropping skb.
[ 1122.390082] blackhole_netdev_xmit(): Dropping skb.
[ 1122.390118] blackhole_netdev_xmit(): Dropping skb.
[ 1122.390162] blackhole_netdev_xmit(): Dropping skb.
[ 1201.829613] blackhole_netdev_xmit(): Dropping skb.
[ 1201.829669] blackhole_netdev_xmit(): Dropping skb.
[ 1201.829706] blackhole_netdev_xmit(): Dropping skb.
[ 1201.829739] blackhole_netdev_xmit(): Dropping skb.