[    1.504659] ip (254) used greatest stack depth: 12168 bytes left
[    2.639293] ip (394) used greatest stack depth: 12120 bytes left
[   52.406663] netem: version 1.3
[  537.991619] tc (16942) used greatest stack depth: 11888 bytes left
[  593.998155] pm_nl_ctl (20242) used greatest stack depth: 11840 bytes left