Commit 0b5d3205 authored Sep 21, 2018 by Pavankumar Kondeti Committed by Satya Durga Srinivasu Prabhala Sep 21, 2018

sched: Fix incorrect sleep duration in wait_task_inactive()



The sleep timeout in wait_task_inactive is incorrectly set to 10 usec
by 'commit e387fd87 ("sched: reduce sleep duration in
wait_task_inactive()")'. The intention of the patch was to use
1 msec like in previous kernel. The 10 usec is too short and won't
allow the other task to become inactive. This can potentially
result in a boot up failure while the creation of the smpboot
threads.

Change-Id: Ib888a0f4d70c13320b39847b5d3fca8ec1963e80
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>

parent 8c126e98

kernel/sched/core.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1448,7 +1448,7 @@ unsigned long wait_task_inactive(struct task_struct *p, long match_state)
		* yield - it could be a while.
		*/
		if (unlikely(queued)) {
		ktime_t to = NSEC_PER_MSEC / HZ;
		ktime_t to = NSEC_PER_MSEC;

		set_current_state(TASK_UNINTERRUPTIBLE);
		schedule_hrtimeout(&to, HRTIMER_MODE_REL);