[    1.690137] ip (268) used greatest stack depth: 12472 bytes left
[    1.774136] ip (277) used greatest stack depth: 12360 bytes left
[    1.926465] ip (295) used greatest stack depth: 12248 bytes left
[    3.129859] ip (420) used greatest stack depth: 12216 bytes left
[   23.540786] ip (1537) used greatest stack depth: 12200 bytes left
[   51.053301] netem: version 1.3
[  543.618817] tc (16939) used greatest stack depth: 11896 bytes left
[  600.233241] pm_nl_ctl (20241) used greatest stack depth: 11864 bytes left