[    1.958709] ip (255) used greatest stack depth: 12400 bytes left
[    2.391275] ip (289) used greatest stack depth: 12352 bytes left
[   40.022162] ip (1594) used greatest stack depth: 12168 bytes left
[   52.805270] netem: version 1.3
[  298.397250] ip (4696) used greatest stack depth: 12072 bytes left