[    2.267478] ip (286) used greatest stack depth: 12344 bytes left
[    7.287570] ip (683) used greatest stack depth: 12288 bytes left
[   54.233370] ip (2351) used greatest stack depth: 12064 bytes left
[   54.692747] netem: version 1.3
[  627.155863] tc (12965) used greatest stack depth: 11936 bytes left