[    2.150330] ip (204) used greatest stack depth: 12128 bytes left
[    2.654991] ip (354) used greatest stack depth: 12096 bytes left
[    3.200580] ip (524) used greatest stack depth: 12056 bytes left
[   49.980017] netem: version 1.3
[  555.556228] pm_nl_ctl (24836) used greatest stack depth: 11864 bytes left