[   12.256933] ip (213) used greatest stack depth: 12296 bytes left
[   12.375585] ip (254) used greatest stack depth: 12064 bytes left
[   12.960958] ip (412) used greatest stack depth: 12048 bytes left
[   61.866512] netem: version 1.3
[   71.229295] ip (4462) used greatest stack depth: 12016 bytes left
[  569.659867] pm_nl_ctl (24855) used greatest stack depth: 11864 bytes left