[    2.372175] ip (295) used greatest stack depth: 12344 bytes left
[   40.050069] ip (1658) used greatest stack depth: 12208 bytes left
[   53.634247] netem: version 1.3
[  382.845952] ip (5948) used greatest stack depth: 12064 bytes left
[  611.942161] tc (12618) used greatest stack depth: 11936 bytes left