[    2.517587] ip (223) used greatest stack depth: 12216 bytes left
[    6.726683] ip (1385) used greatest stack depth: 11960 bytes left
[   52.055864] netem: version 1.3
[   82.290941] ip (5015) used greatest stack depth: 11936 bytes left
[  519.535386] pm_nl_ctl (24672) used greatest stack depth: 11864 bytes left