[    1.383552] ip (217) used greatest stack depth: 12216 bytes left
[    1.514077] ip (258) used greatest stack depth: 11960 bytes left
[   50.507098] netem: version 1.3
[   57.072645] ip (4479) used greatest stack depth: 11936 bytes left
[  543.694074] pm_nl_ctl (24826) used greatest stack depth: 11856 bytes left