[    2.001645] ip (243) used greatest stack depth: 12384 bytes left
[    2.681127] ip (277) used greatest stack depth: 12368 bytes left
[    2.905947] ip (291) used greatest stack depth: 12352 bytes left
[   22.789707] ip (2217) used greatest stack depth: 12312 bytes left
[  654.171376] blackhole_netdev_xmit(): Dropping skb.
[  654.171452] blackhole_netdev_xmit(): Dropping skb.
[  654.171492] blackhole_netdev_xmit(): Dropping skb.
[  654.171536] blackhole_netdev_xmit(): Dropping skb.
[  811.498404] blackhole_netdev_xmit(): Dropping skb.
[  811.498468] blackhole_netdev_xmit(): Dropping skb.
[  811.498500] blackhole_netdev_xmit(): Dropping skb.
[  811.498533] blackhole_netdev_xmit(): Dropping skb.
[  867.210048] blackhole_netdev_xmit(): Dropping skb.
[  867.210106] blackhole_netdev_xmit(): Dropping skb.
[  867.210147] blackhole_netdev_xmit(): Dropping skb.
[  867.210185] blackhole_netdev_xmit(): Dropping skb.
[  904.422160] blackhole_netdev_xmit(): Dropping skb.
[  904.422221] blackhole_netdev_xmit(): Dropping skb.
[  904.422257] blackhole_netdev_xmit(): Dropping skb.
[  904.422295] blackhole_netdev_xmit(): Dropping skb.
[  939.298494] blackhole_netdev_xmit(): Dropping skb.
[  939.298554] blackhole_netdev_xmit(): Dropping skb.
[  939.298603] blackhole_netdev_xmit(): Dropping skb.
[  939.298646] blackhole_netdev_xmit(): Dropping skb.
[ 1004.435586] blackhole_netdev_xmit(): Dropping skb.
[ 1004.435652] blackhole_netdev_xmit(): Dropping skb.
[ 1004.435689] blackhole_netdev_xmit(): Dropping skb.
[ 1004.435730] blackhole_netdev_xmit(): Dropping skb.
[ 1009.214499] blackhole_netdev_xmit(): Dropping skb.
[ 1009.214548] blackhole_netdev_xmit(): Dropping skb.
[ 1009.214578] blackhole_netdev_xmit(): Dropping skb.
[ 1009.214603] blackhole_netdev_xmit(): Dropping skb.