[    1.911238] ip (268) used greatest stack depth: 12328 bytes left
[    2.090408] ip (287) used greatest stack depth: 12216 bytes left
[   43.213201] ip (2782) used greatest stack depth: 12200 bytes left
[   50.872424] netem: version 1.3
[   90.778015] ip (3551) used greatest stack depth: 12136 bytes left
[  586.146775] tc (16941) used greatest stack depth: 11920 bytes left
[  641.792195] pm_nl_ctl (20241) used greatest stack depth: 11784 bytes left