[   47.735488] ip (3043) used greatest stack depth: 12120 bytes left
[   48.171878] netem: version 1.3
[  129.649193] ip (3932) used greatest stack depth: 11944 bytes left
[  575.673610] tc (16942) used greatest stack depth: 11896 bytes left
[  633.234729] pm_nl_ctl (20243) used greatest stack depth: 11800 bytes left