[    2.151529] ip (199) used greatest stack depth: 12160 bytes left
[   17.056850] ip (1684) used greatest stack depth: 12128 bytes left
[   57.571777] ip (4455) used greatest stack depth: 12088 bytes left
[  536.576770] pm_nl_ctl (24837) used greatest stack depth: 11944 bytes left