[    2.567312] ip (217) used greatest stack depth: 12216 bytes left
[    2.647883] ip (240) used greatest stack depth: 11960 bytes left
[   51.532348] ip (4109) used greatest stack depth: 11936 bytes left
[   52.211562] netem: version 1.3
[  539.486933] pm_nl_ctl (24686) used greatest stack depth: 11864 bytes left