[    2.495348] ip (215) used greatest stack depth: 12272 bytes left
[    2.577075] ip (237) used greatest stack depth: 12072 bytes left
[   31.578169] ip (2766) used greatest stack depth: 12040 bytes left
[   52.200290] netem: version 1.3
[  527.415701] pm_nl_ctl (24670) used greatest stack depth: 11856 bytes left