Messages in this thread Patch in this message | | | From | Alex Shi <> | Subject | [PATCH 05/18] sched: load tracking bug fix | Date | Mon, 10 Dec 2012 16:22:21 +0800 |
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We need initialize the se.avg.{decay_count, load_avg_contrib} to zero after a new task forked. Otherwise random values of above variable cause mess when do new task enqueue: enqueue_task_fair enqueue_entity enqueue_entity_load_avg
Signed-off-by: Alex Shi <alex.shi@intel.com> --- kernel/sched/core.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 5dae0d2..e6533e1 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -1534,6 +1534,8 @@ static void __sched_fork(struct task_struct *p) #if defined(CONFIG_SMP) && defined(CONFIG_FAIR_GROUP_SCHED) p->se.avg.runnable_avg_period = 0; p->se.avg.runnable_avg_sum = 0; + p->se.avg.decay_count = 0; + p->se.avg.load_avg_contrib = 0; #endif #ifdef CONFIG_SCHEDSTATS memset(&p->se.statistics, 0, sizeof(p->se.statistics)); -- 1.7.5.1
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