[    2.529483] ip (228) used greatest stack depth: 12080 bytes left
[    3.160637] ip (404) used greatest stack depth: 12040 bytes left
[   52.076698] netem: version 1.3
[   60.117963] ip (4463) used greatest stack depth: 12008 bytes left
[  541.555075] pm_nl_ctl (24654) used greatest stack depth: 11856 bytes left