[    2.650384] ip (257) used greatest stack depth: 12208 bytes left
[    3.134958] ip (371) used greatest stack depth: 12168 bytes left
[   12.405784] ip (1539) used greatest stack depth: 12008 bytes left
[   37.769210] ip (3110) used greatest stack depth: 11960 bytes left
[   49.526345] ip (3591) used greatest stack depth: 11936 bytes left
[   52.056920] netem: version 1.3
[  557.229288] pm_nl_ctl (24664) used greatest stack depth: 11864 bytes left