[    3.054251] ip (275) used greatest stack depth: 12320 bytes left
[    3.279964] ip (289) used greatest stack depth: 12272 bytes left
[  649.730933] ip (24100) used greatest stack depth: 12160 bytes left
[  697.316709] blackhole_netdev_xmit(): Dropping skb.
[  697.316775] blackhole_netdev_xmit(): Dropping skb.
[  697.316810] blackhole_netdev_xmit(): Dropping skb.
[  697.316849] blackhole_netdev_xmit(): Dropping skb.
[  775.484903] blackhole_netdev_xmit(): Dropping skb.
[  775.484981] blackhole_netdev_xmit(): Dropping skb.
[  775.485024] blackhole_netdev_xmit(): Dropping skb.
[  775.485068] blackhole_netdev_xmit(): Dropping skb.
[  849.823196] blackhole_netdev_xmit(): Dropping skb.
[  849.823288] blackhole_netdev_xmit(): Dropping skb.
[  849.823324] blackhole_netdev_xmit(): Dropping skb.
[  849.823358] blackhole_netdev_xmit(): Dropping skb.
[  994.886763] blackhole_netdev_xmit(): Dropping skb.
[  994.886827] blackhole_netdev_xmit(): Dropping skb.
[  994.886862] blackhole_netdev_xmit(): Dropping skb.
[  994.886898] blackhole_netdev_xmit(): Dropping skb.
[ 1001.658642] blackhole_netdev_xmit(): Dropping skb.
[ 1001.658698] blackhole_netdev_xmit(): Dropping skb.
[ 1001.658744] blackhole_netdev_xmit(): Dropping skb.
[ 1001.658794] blackhole_netdev_xmit(): Dropping skb.
[ 1162.713887] blackhole_netdev_xmit(): Dropping skb.
[ 1162.713942] blackhole_netdev_xmit(): Dropping skb.
[ 1162.713976] blackhole_netdev_xmit(): Dropping skb.
[ 1162.714011] blackhole_netdev_xmit(): Dropping skb.
[ 1182.663302] blackhole_netdev_xmit(): Dropping skb.
[ 1182.663359] blackhole_netdev_xmit(): Dropping skb.
[ 1182.663394] blackhole_netdev_xmit(): Dropping skb.
[ 1182.663431] blackhole_netdev_xmit(): Dropping skb.
[ 1214.435480] blackhole_netdev_xmit(): Dropping skb.
[ 1214.435538] blackhole_netdev_xmit(): Dropping skb.
[ 1214.435571] blackhole_netdev_xmit(): Dropping skb.
[ 1214.435602] blackhole_netdev_xmit(): Dropping skb.