[   29.010122] ip (2100) used greatest stack depth: 11944 bytes left
[   32.431443] ip (2942) used greatest stack depth: 11912 bytes left
[   52.882322] netem: version 1.3
[   60.902779] ip (4457) used greatest stack depth: 11896 bytes left
[  516.317570] tc (20925) used greatest stack depth: 11704 bytes left