[   31.053097] ip (2910) used greatest stack depth: 12360 bytes left
[   50.561899] netem: version 1.3
[   59.060461] ip (4433) used greatest stack depth: 12344 bytes left
[  101.169473] ip (5007) used greatest stack depth: 12064 bytes left
[  547.790512] pm_nl_ctl (24824) used greatest stack depth: 11944 bytes left