[    2.947838] ip (388) used greatest stack depth: 12048 bytes left
[    5.281189] ip (1031) used greatest stack depth: 12024 bytes left
[   68.597156] ip (4832) used greatest stack depth: 11992 bytes left
[  558.777732] pm_nl_ctl (26364) used greatest stack depth: 11912 bytes left