[    1.965441] ip (246) used greatest stack depth: 12376 bytes left
[    2.560833] ip (280) used greatest stack depth: 12360 bytes left
[    2.607196] ip (284) used greatest stack depth: 12344 bytes left
[   11.344839] ip (951) used greatest stack depth: 12192 bytes left
[   15.541401] mpls_gso: MPLS GSO support
[  777.626737] blackhole_netdev_xmit(): Dropping skb.
[  777.626807] blackhole_netdev_xmit(): Dropping skb.
[  777.626843] blackhole_netdev_xmit(): Dropping skb.
[  777.626888] blackhole_netdev_xmit(): Dropping skb.
[ 1043.952169] blackhole_netdev_xmit(): Dropping skb.
[ 1043.952249] blackhole_netdev_xmit(): Dropping skb.
[ 1043.952286] blackhole_netdev_xmit(): Dropping skb.
[ 1043.952320] blackhole_netdev_xmit(): Dropping skb.
[ 1052.230237] blackhole_netdev_xmit(): Dropping skb.
[ 1052.230290] blackhole_netdev_xmit(): Dropping skb.
[ 1052.230321] blackhole_netdev_xmit(): Dropping skb.
[ 1052.230348] blackhole_netdev_xmit(): Dropping skb.