[  123.689180][ T4273] netem: version 1.3
[  227.063679][ T5517] ip (5517) used greatest stack depth: 23512 bytes left
[  850.835000][T19720] ip (19720) used greatest stack depth: 23496 bytes left
[  929.049629][T21871] ip (21871) used greatest stack depth: 23448 bytes left
[  990.361768][T24786] pm_nl_ctl (24786) used greatest stack depth: 23000 bytes left