[    1.921690] ip (250) used greatest stack depth: 12376 bytes left
[    2.438346] ip (281) used greatest stack depth: 12360 bytes left
[    2.480892] ip (285) used greatest stack depth: 12344 bytes left
[  971.900549] blackhole_netdev_xmit(): Dropping skb.
[  971.900698] blackhole_netdev_xmit(): Dropping skb.
[  971.900732] blackhole_netdev_xmit(): Dropping skb.
[  971.900766] blackhole_netdev_xmit(): Dropping skb.
[  974.786186] blackhole_netdev_xmit(): Dropping skb.
[  974.786243] blackhole_netdev_xmit(): Dropping skb.
[  974.786280] blackhole_netdev_xmit(): Dropping skb.
[  974.786320] blackhole_netdev_xmit(): Dropping skb.
[ 1120.165479] blackhole_netdev_xmit(): Dropping skb.
[ 1120.165564] blackhole_netdev_xmit(): Dropping skb.
[ 1120.165619] blackhole_netdev_xmit(): Dropping skb.
[ 1120.165664] blackhole_netdev_xmit(): Dropping skb.
[ 1169.204766] blackhole_netdev_xmit(): Dropping skb.
[ 1169.204824] blackhole_netdev_xmit(): Dropping skb.
[ 1169.204856] blackhole_netdev_xmit(): Dropping skb.
[ 1169.204882] blackhole_netdev_xmit(): Dropping skb.
[ 1176.862181] blackhole_netdev_xmit(): Dropping skb.
[ 1176.862251] blackhole_netdev_xmit(): Dropping skb.
[ 1176.862288] blackhole_netdev_xmit(): Dropping skb.
[ 1176.862324] blackhole_netdev_xmit(): Dropping skb.
[ 1177.172010] blackhole_netdev_xmit(): Dropping skb.
[ 1177.172067] blackhole_netdev_xmit(): Dropping skb.
[ 1177.172102] blackhole_netdev_xmit(): Dropping skb.
[ 1177.172139] blackhole_netdev_xmit(): Dropping skb.
[ 1202.773523] blackhole_netdev_xmit(): Dropping skb.
[ 1202.773601] blackhole_netdev_xmit(): Dropping skb.
[ 1202.773630] blackhole_netdev_xmit(): Dropping skb.
[ 1202.773659] blackhole_netdev_xmit(): Dropping skb.