[    2.464046] ip (216) used greatest stack depth: 12216 bytes left
[    2.517169] ip (229) used greatest stack depth: 11992 bytes left
[    2.584286] ip (257) used greatest stack depth: 11976 bytes left
[   51.947900] netem: version 1.3
[  109.256726] ip (5221) used greatest stack depth: 11936 bytes left
[  550.606696] pm_nl_ctl (24827) used greatest stack depth: 11864 bytes left