[    1.967435] ip (294) used greatest stack depth: 12232 bytes left
[   53.611939] netem: version 1.3
[   99.608277] ip (3473) used greatest stack depth: 12088 bytes left
[  630.304489] tc (21213) used greatest stack depth: 11912 bytes left
[  687.390989] pm_nl_ctl (24352) used greatest stack depth: 11872 bytes left