This second trace looks related to the fix below which was in v3.16 and would support at least that issue being fixed in lts-x kernel:
commit eb7a59b2c888c2518ba2c9d0020343ca71aa9dee Author: Michael wang <email address hidden> Date: Thu Feb 20 11:14:53 2014 +0800
sched/fair: Reset se-depth when task switched to FAIR
This second trace looks related to the fix below which was in v3.16 and would support at least that issue being fixed in lts-x kernel:
commit eb7a59b2c888c25 18ba2c9d0020343 ca71aa9dee
Author: Michael wang <email address hidden>
Date: Thu Feb 20 11:14:53 2014 +0800
sched/fair: Reset se-depth when task switched to FAIR