[    1.874179] ip (240) used greatest stack depth: 12832 bytes left
[    1.907794] ip (243) used greatest stack depth: 12384 bytes left
[    2.456708] ip (274) used greatest stack depth: 12352 bytes left
[   11.477603] ip (960) used greatest stack depth: 12200 bytes left
[ 1007.260874] blackhole_netdev_xmit(): Dropping skb.
[ 1007.260951] blackhole_netdev_xmit(): Dropping skb.
[ 1007.260991] blackhole_netdev_xmit(): Dropping skb.
[ 1007.261029] blackhole_netdev_xmit(): Dropping skb.
[ 1033.799967] blackhole_netdev_xmit(): Dropping skb.
[ 1033.800026] blackhole_netdev_xmit(): Dropping skb.
[ 1033.800061] blackhole_netdev_xmit(): Dropping skb.
[ 1033.800097] blackhole_netdev_xmit(): Dropping skb.
[ 1073.851749] blackhole_netdev_xmit(): Dropping skb.
[ 1073.851814] blackhole_netdev_xmit(): Dropping skb.
[ 1073.851847] blackhole_netdev_xmit(): Dropping skb.
[ 1073.851877] blackhole_netdev_xmit(): Dropping skb.
[ 1091.057873] blackhole_netdev_xmit(): Dropping skb.
[ 1091.057942] blackhole_netdev_xmit(): Dropping skb.
[ 1091.057980] blackhole_netdev_xmit(): Dropping skb.
[ 1091.058017] blackhole_netdev_xmit(): Dropping skb.
[ 1179.884675] blackhole_netdev_xmit(): Dropping skb.
[ 1179.884747] blackhole_netdev_xmit(): Dropping skb.
[ 1179.884792] blackhole_netdev_xmit(): Dropping skb.
[ 1179.884839] blackhole_netdev_xmit(): Dropping skb.
[ 1195.397638] blackhole_netdev_xmit(): Dropping skb.
[ 1195.397687] blackhole_netdev_xmit(): Dropping skb.
[ 1195.397717] blackhole_netdev_xmit(): Dropping skb.
[ 1195.397743] blackhole_netdev_xmit(): Dropping skb.
[ 1210.160285] blackhole_netdev_xmit(): Dropping skb.
[ 1210.160345] blackhole_netdev_xmit(): Dropping skb.
[ 1210.160382] blackhole_netdev_xmit(): Dropping skb.
[ 1210.160418] blackhole_netdev_xmit(): Dropping skb.