[    2.477290] ip (211) used greatest stack depth: 12344 bytes left
[    2.495856] ip (216) used greatest stack depth: 12304 bytes left
[    2.598948] ip (252) used greatest stack depth: 12056 bytes left
[   52.275742] netem: version 1.3
[  104.171003] ip (5205) used greatest stack depth: 12024 bytes left
[  532.280461] pm_nl_ctl (24670) used greatest stack depth: 11856 bytes left