[    2.237427] ip (246) used greatest stack depth: 12376 bytes left
[    2.278646] ip (249) used greatest stack depth: 12328 bytes left
[   10.393765] ip (804) used greatest stack depth: 12192 bytes left
[   16.508116] mpls_gso: MPLS GSO support
[  897.832399] blackhole_netdev_xmit(): Dropping skb.
[  897.832468] blackhole_netdev_xmit(): Dropping skb.
[  897.832504] blackhole_netdev_xmit(): Dropping skb.
[  897.832541] blackhole_netdev_xmit(): Dropping skb.
[ 1071.092558] blackhole_netdev_xmit(): Dropping skb.
[ 1071.092621] blackhole_netdev_xmit(): Dropping skb.
[ 1071.092651] blackhole_netdev_xmit(): Dropping skb.
[ 1071.092678] blackhole_netdev_xmit(): Dropping skb.