[    2.535703] ip (218) used greatest stack depth: 12344 bytes left
[   29.764620] ip (2235) used greatest stack depth: 12096 bytes left
[   52.287338] netem: version 1.3
[  118.587691] ip (5214) used greatest stack depth: 12056 bytes left
[  545.250572] pm_nl_ctl (24682) used greatest stack depth: 11856 bytes left