[  326.905895][ T3075] netem: version 1.3
[  497.669799][ T4035] ip (4035) used greatest stack depth: 23472 bytes left
[ 1866.624922][T14572] ip (14572) used greatest stack depth: 23392 bytes left
[ 2039.171600][T16038] ip (16038) used greatest stack depth: 23008 bytes left
[ 2424.679387][T20242] pm_nl_ctl (20242) used greatest stack depth: 22432 bytes left