[    2.125489] ip (185) used greatest stack depth: 12360 bytes left
[    3.243934] ip (518) used greatest stack depth: 12128 bytes left
[    3.295977] ip (536) used greatest stack depth: 12088 bytes left
[   50.431414] netem: version 1.3
[  538.704672] pm_nl_ctl (24829) used greatest stack depth: 11944 bytes left