[    1.895020] ip (258) used greatest stack depth: 12880 bytes left
[    2.140671] ip (275) used greatest stack depth: 12872 bytes left
[    2.163409] ip (277) used greatest stack depth: 12480 bytes left
[    2.264928] ip (286) used greatest stack depth: 12272 bytes left
[    4.628058] ip (506) used greatest stack depth: 12256 bytes left
[   54.300646] netem: version 1.3
[   62.151400] ip (3009) used greatest stack depth: 12128 bytes left
[  602.567282] tc (15595) used greatest stack depth: 11936 bytes left
[  669.002129] pm_nl_ctl (18733) used greatest stack depth: 11912 bytes left