[    1.869203] ip (239) used greatest stack depth: 12544 bytes left
[    1.898673] ip (242) used greatest stack depth: 12352 bytes left
[    2.363453] ip (273) used greatest stack depth: 12320 bytes left
[  721.690400] blackhole_netdev_xmit(): Dropping skb.
[  721.690472] blackhole_netdev_xmit(): Dropping skb.
[  721.690509] blackhole_netdev_xmit(): Dropping skb.
[  721.690543] blackhole_netdev_xmit(): Dropping skb.
[  878.648745] blackhole_netdev_xmit(): Dropping skb.
[  878.648805] blackhole_netdev_xmit(): Dropping skb.
[  878.648839] blackhole_netdev_xmit(): Dropping skb.
[  878.648889] blackhole_netdev_xmit(): Dropping skb.
[  919.446576] blackhole_netdev_xmit(): Dropping skb.
[  919.446635] blackhole_netdev_xmit(): Dropping skb.
[  919.446673] blackhole_netdev_xmit(): Dropping skb.
[  919.446707] blackhole_netdev_xmit(): Dropping skb.
[  927.152419] blackhole_netdev_xmit(): Dropping skb.
[  927.152489] blackhole_netdev_xmit(): Dropping skb.
[  927.152527] blackhole_netdev_xmit(): Dropping skb.
[  927.152566] blackhole_netdev_xmit(): Dropping skb.
[  930.213320] blackhole_netdev_xmit(): Dropping skb.
[  930.213376] blackhole_netdev_xmit(): Dropping skb.
[  930.213410] blackhole_netdev_xmit(): Dropping skb.
[  930.213446] blackhole_netdev_xmit(): Dropping skb.
[ 1041.459070] blackhole_netdev_xmit(): Dropping skb.
[ 1041.459127] blackhole_netdev_xmit(): Dropping skb.
[ 1041.459163] blackhole_netdev_xmit(): Dropping skb.
[ 1041.459197] blackhole_netdev_xmit(): Dropping skb.
[ 1058.071947] blackhole_netdev_xmit(): Dropping skb.
[ 1058.072006] blackhole_netdev_xmit(): Dropping skb.
[ 1058.072038] blackhole_netdev_xmit(): Dropping skb.
[ 1058.072074] blackhole_netdev_xmit(): Dropping skb.
[ 1147.569467] blackhole_netdev_xmit(): Dropping skb.
[ 1147.569515] blackhole_netdev_xmit(): Dropping skb.
[ 1147.569555] blackhole_netdev_xmit(): Dropping skb.
[ 1147.569582] blackhole_netdev_xmit(): Dropping skb.
[ 1173.693160] blackhole_netdev_xmit(): Dropping skb.
[ 1173.693236] blackhole_netdev_xmit(): Dropping skb.
[ 1173.693289] blackhole_netdev_xmit(): Dropping skb.
[ 1173.693350] blackhole_netdev_xmit(): Dropping skb.
[ 1203.984267] blackhole_netdev_xmit(): Dropping skb.
[ 1203.984324] blackhole_netdev_xmit(): Dropping skb.
[ 1203.984361] blackhole_netdev_xmit(): Dropping skb.
[ 1203.984411] blackhole_netdev_xmit(): Dropping skb.