[    2.470881] ip (211) used greatest stack depth: 12344 bytes left
[    4.402060] ip (732) used greatest stack depth: 12056 bytes left
[   50.220790] ip (3771) used greatest stack depth: 12048 bytes left
[   52.116085] netem: version 1.3
[  540.523251] pm_nl_ctl (24678) used greatest stack depth: 11856 bytes left