[    2.077541] ip (185) used greatest stack depth: 12296 bytes left
[    2.181058] ip (225) used greatest stack depth: 12056 bytes left
[   16.918117] ip (1686) used greatest stack depth: 12024 bytes left
[   50.128938] netem: version 1.3
[  548.161182] pm_nl_ctl (24839) used greatest stack depth: 11864 bytes left