[    2.095281] ip (187) used greatest stack depth: 12352 bytes left
[    4.906825] ip (1027) used greatest stack depth: 12128 bytes left
[   22.600680] ip (1827) used greatest stack depth: 12088 bytes left
[   50.387443] netem: version 1.3
[  535.171787] pm_nl_ctl (24819) used greatest stack depth: 11952 bytes left