[    2.188416] ip (216) used greatest stack depth: 12472 bytes left
[   17.026805] ip (1683) used greatest stack depth: 12344 bytes left
[   47.441788] ip (3408) used greatest stack depth: 12080 bytes left
[   50.257371] netem: version 1.3
[  552.173332] pm_nl_ctl (24825) used greatest stack depth: 11936 bytes left