[    1.674569] ip (254) used greatest stack depth: 12216 bytes left
[   50.479529] netem: version 1.3
[   59.859532] ip (3010) used greatest stack depth: 12088 bytes left
[  634.606561] tc (21233) used greatest stack depth: 11952 bytes left
[  690.840419] pm_nl_ctl (24374) used greatest stack depth: 11872 bytes left