[    2.134188] ip (189) used greatest stack depth: 12256 bytes left
[    5.336848] ip (1164) used greatest stack depth: 12232 bytes left
[   28.130216] ip (2069) used greatest stack depth: 12056 bytes left
[   50.201460] netem: version 1.3
[  590.096002] pm_nl_ctl (24836) used greatest stack depth: 11864 bytes left