[    2.636066] ip (335) used greatest stack depth: 12352 bytes left
[    2.733163] ip (370) used greatest stack depth: 12160 bytes left
[   49.853833] ip (4079) used greatest stack depth: 12080 bytes left
[   50.472273] netem: version 1.3
[  541.701893] pm_nl_ctl (24824) used greatest stack depth: 11944 bytes left