[   12.222095] ip (213) used greatest stack depth: 12312 bytes left
[   12.913621] ip (395) used greatest stack depth: 12080 bytes left
[   15.277748] ip (1041) used greatest stack depth: 12040 bytes left
[   38.940666] ip (2098) used greatest stack depth: 12032 bytes left
[   61.843597] netem: version 1.3
[  551.539967] pm_nl_ctl (24871) used greatest stack depth: 11856 bytes left