[   67.676987] ip (295) used greatest stack depth: 12272 bytes left
[   74.418838] ip (1036) used greatest stack depth: 12000 bytes left
[  114.604572] netem: version 1.3
[  633.995283] tc (15678) used greatest stack depth: 11936 bytes left
[  691.765314] pm_nl_ctl (18824) used greatest stack depth: 11880 bytes left