[    2.639847] ip (272) used greatest stack depth: 12352 bytes left
[    2.834040] ip (290) used greatest stack depth: 12344 bytes left
[   39.362927] ip (1589) used greatest stack depth: 12296 bytes left
[   52.258989] netem: version 1.3
[   69.181232] ip (2370) used greatest stack depth: 12200 bytes left
[  584.266076] tc (11924) used greatest stack depth: 11936 bytes left