[    1.825890] ip (245) used greatest stack depth: 12384 bytes left
[    2.397482] ip (276) used greatest stack depth: 12368 bytes left
[    2.613924] ip (290) used greatest stack depth: 12352 bytes left
[   23.518391] ip (2382) used greatest stack depth: 12280 bytes left
[  823.920580] blackhole_netdev_xmit(): Dropping skb.
[  823.920646] blackhole_netdev_xmit(): Dropping skb.
[  823.920677] blackhole_netdev_xmit(): Dropping skb.
[  823.920703] blackhole_netdev_xmit(): Dropping skb.
[ 1107.203976] blackhole_netdev_xmit(): Dropping skb.
[ 1107.204046] blackhole_netdev_xmit(): Dropping skb.
[ 1107.204075] blackhole_netdev_xmit(): Dropping skb.
[ 1107.204101] blackhole_netdev_xmit(): Dropping skb.
[ 1133.408452] blackhole_netdev_xmit(): Dropping skb.
[ 1133.408512] blackhole_netdev_xmit(): Dropping skb.
[ 1133.408547] blackhole_netdev_xmit(): Dropping skb.
[ 1133.408579] blackhole_netdev_xmit(): Dropping skb.
[ 1136.414946] blackhole_netdev_xmit(): Dropping skb.
[ 1136.415002] blackhole_netdev_xmit(): Dropping skb.
[ 1136.415039] blackhole_netdev_xmit(): Dropping skb.
[ 1136.415075] blackhole_netdev_xmit(): Dropping skb.
[ 1160.847937] blackhole_netdev_xmit(): Dropping skb.
[ 1160.847988] blackhole_netdev_xmit(): Dropping skb.
[ 1160.848019] blackhole_netdev_xmit(): Dropping skb.
[ 1160.848046] blackhole_netdev_xmit(): Dropping skb.
[ 1185.921444] blackhole_netdev_xmit(): Dropping skb.
[ 1185.921494] blackhole_netdev_xmit(): Dropping skb.
[ 1185.921524] blackhole_netdev_xmit(): Dropping skb.
[ 1185.921551] blackhole_netdev_xmit(): Dropping skb.