[   28.393139] ip (2067) used greatest stack depth: 12320 bytes left
[   30.667540] ip (2743) used greatest stack depth: 12056 bytes left
[   50.940202] netem: version 1.3
[   62.098818] ip (4622) used greatest stack depth: 12048 bytes left
[  519.444967] pm_nl_ctl (24831) used greatest stack depth: 11864 bytes left