[    2.976450] ip (292) used greatest stack depth: 12384 bytes left
[   48.551776] ip (1984) used greatest stack depth: 12256 bytes left
[   67.020092] netem: version 1.3
[  617.475437] tc (15680) used greatest stack depth: 11936 bytes left
[  682.286281] pm_nl_ctl (18823) used greatest stack depth: 11880 bytes left