[    2.549581] ip (260) used greatest stack depth: 12432 bytes left
[    2.599402] ip (263) used greatest stack depth: 12368 bytes left
[   67.522246] netem: version 1.3
[  158.939207] ip (3788) used greatest stack depth: 12232 bytes left
[  652.119649] tc (15678) used greatest stack depth: 11936 bytes left
[  715.793002] pm_nl_ctl (18824) used greatest stack depth: 11880 bytes left