[    2.566161] ip (237) used greatest stack depth: 12280 bytes left
[    2.611988] ip (255) used greatest stack depth: 12072 bytes left
[    4.328822] ip (709) used greatest stack depth: 12040 bytes left
[   52.417200] netem: version 1.3
[  526.299069] pm_nl_ctl (24669) used greatest stack depth: 11856 bytes left