[    2.617401] ip (253) used greatest stack depth: 12184 bytes left
[    6.137320] ip (1219) used greatest stack depth: 12096 bytes left
[   23.514976] ip (1859) used greatest stack depth: 12048 bytes left
[   52.078533] netem: version 1.3
[  549.628599] pm_nl_ctl (24665) used greatest stack depth: 11856 bytes left