[    1.735468] ip (246) used greatest stack depth: 12368 bytes left
[    2.233734] ip (277) used greatest stack depth: 12352 bytes left
[    2.276225] ip (281) used greatest stack depth: 12280 bytes left
[   12.994325] ip (1175) used greatest stack depth: 12056 bytes left
[  769.295462] blackhole_netdev_xmit(): Dropping skb.
[  769.295523] blackhole_netdev_xmit(): Dropping skb.
[  769.295556] blackhole_netdev_xmit(): Dropping skb.
[  769.295589] blackhole_netdev_xmit(): Dropping skb.
[  925.608104] blackhole_netdev_xmit(): Dropping skb.
[  925.608170] blackhole_netdev_xmit(): Dropping skb.
[  925.608214] blackhole_netdev_xmit(): Dropping skb.
[  925.608251] blackhole_netdev_xmit(): Dropping skb.
[  927.153903] blackhole_netdev_xmit(): Dropping skb.
[  927.153981] blackhole_netdev_xmit(): Dropping skb.
[  927.154014] blackhole_netdev_xmit(): Dropping skb.
[  927.154041] blackhole_netdev_xmit(): Dropping skb.
[  944.565583] blackhole_netdev_xmit(): Dropping skb.
[  944.565638] blackhole_netdev_xmit(): Dropping skb.
[  944.565675] blackhole_netdev_xmit(): Dropping skb.
[  944.565710] blackhole_netdev_xmit(): Dropping skb.
[ 1143.041750] blackhole_netdev_xmit(): Dropping skb.
[ 1143.041818] blackhole_netdev_xmit(): Dropping skb.
[ 1143.041850] blackhole_netdev_xmit(): Dropping skb.
[ 1143.041876] blackhole_netdev_xmit(): Dropping skb.