[    2.948114] ip (289) used greatest stack depth: 12344 bytes left
[    6.704581] ip (546) used greatest stack depth: 12288 bytes left
[   52.404132] ip (2421) used greatest stack depth: 12192 bytes left
[   63.380187] netem: version 1.3
[  695.243512] pm_nl_ctl (18729) used greatest stack depth: 11872 bytes left