[    2.536049] ip (222) used greatest stack depth: 12216 bytes left
[    3.809592] ip (576) used greatest stack depth: 12200 bytes left
[    5.538342] ip (1053) used greatest stack depth: 11992 bytes left
[   29.119059] ip (2093) used greatest stack depth: 11944 bytes left
[   52.053562] netem: version 1.3
[  560.136780] pm_nl_ctl (24834) used greatest stack depth: 11864 bytes left