[    2.217285] ip (256) used greatest stack depth: 12392 bytes left
[    2.777621] ip (288) used greatest stack depth: 12344 bytes left
[    8.274792] ip (661) used greatest stack depth: 12288 bytes left
[   47.092075] ip (1989) used greatest stack depth: 12160 bytes left
[   64.161718] netem: version 1.3
[  684.358190] pm_nl_ctl (18727) used greatest stack depth: 11624 bytes left