[    1.684182] ip (254) used greatest stack depth: 12168 bytes left
[    6.758227] ip (815) used greatest stack depth: 11944 bytes left
[   50.547965] netem: version 1.3
[  558.745132] tc (16941) used greatest stack depth: 11864 bytes left
[  615.147989] pm_nl_ctl (20240) used greatest stack depth: 11848 bytes left