[    2.133375] ip (224) used greatest stack depth: 12072 bytes left
[   50.082864] netem: version 1.3
[   68.823443] ip (4611) used greatest stack depth: 12064 bytes left
[  122.381152] ip (5185) used greatest stack depth: 12056 bytes left
[  547.556745] pm_nl_ctl (24826) used greatest stack depth: 11864 bytes left