[    2.196403] ip (204) used greatest stack depth: 12536 bytes left
[    2.201610] ip (206) used greatest stack depth: 12520 bytes left
[   50.149370] netem: version 1.3
[   58.831347] ip (4423) used greatest stack depth: 12320 bytes left
[   68.536542] ip (4602) used greatest stack depth: 12256 bytes left
[  552.660537] pm_nl_ctl (24837) used greatest stack depth: 11864 bytes left