[    2.550483] ip (237) used greatest stack depth: 12080 bytes left
[    3.169860] ip (404) used greatest stack depth: 12072 bytes left
[   52.198144] netem: version 1.3
[   71.314095] ip (4653) used greatest stack depth: 12056 bytes left
[  558.163106] pm_nl_ctl (24663) used greatest stack depth: 11856 bytes left