[   19.687458] ip (263) used greatest stack depth: 12496 bytes left
[   19.996211] ip (285) used greatest stack depth: 12384 bytes left
[   56.467420] ip (1743) used greatest stack depth: 12360 bytes left
[   74.170658] netem: version 1.3
[   85.150550] ip (3017) used greatest stack depth: 12224 bytes left
[  662.522383] tc (15685) used greatest stack depth: 11936 bytes left
[  730.712854] pm_nl_ctl (18830) used greatest stack depth: 11880 bytes left