[    1.966929] ip (253) used greatest stack depth: 12392 bytes left
[    2.228281] ip (275) used greatest stack depth: 12296 bytes left
[    2.419172] ip (293) used greatest stack depth: 12168 bytes left
[    5.336775] ip (649) used greatest stack depth: 12152 bytes left
[   77.224457] netem: version 1.3
[   86.556888] ip (5592) used greatest stack depth: 11912 bytes left
[  652.064361] tc (26300) used greatest stack depth: 11864 bytes left