[    2.508657] ip (284) used greatest stack depth: 12384 bytes left
[    4.189075] ip (423) used greatest stack depth: 12376 bytes left
[   26.497644] ip (1418) used greatest stack depth: 12256 bytes left
[   58.524950] netem: version 1.3
[  611.975552] tc (15685) used greatest stack depth: 11936 bytes left
[  677.620310] pm_nl_ctl (18830) used greatest stack depth: 11880 bytes left