[    1.437683] ip (257) used greatest stack depth: 12120 bytes left
[    8.658664] ip (1236) used greatest stack depth: 11944 bytes left
[   49.231778] netem: version 1.3
[  547.011077] tc (16940) used greatest stack depth: 11888 bytes left
[  605.499809] pm_nl_ctl (20241) used greatest stack depth: 11832 bytes left