The 1st patch actually fixes the issue. The 2nd patch adds a new element in schedstat intended only for testing.
Atish Patra (2): sched: Minimize the idle cpu selection race window. sched: Add a stat for idle cpu selection race window. kernel/sched/core.c | 6 ++++++ kernel/sched/fair.c | 12 +++++++++--- kernel/sched/idle_task.c | 1 + kernel/sched/sched.h | 2 ++ kernel/sched/stats.c | 5 +++-- 5 files changed, 21 insertions(+), 5 deletions(-) -- 2.7.4