[Devel] Re: Re: Hang with fair cgroup scheduler (reproducer is attached.)

[Ingo Molnar]

* Dmitry Adamushko <dmitry.adamushko at gmail.com> wrote:

> --- a/kernel/sched.c
> +++ b/kernel/sched.c
> @@ -7360,7 +7360,7 @@ void sched_move_task(struct task_struct *tsk)
> 
>         update_rq_clock(rq);
> 
> -       running = task_running(rq, tsk);
> +       running = (rq->curr == tsk);
>         on_rq = tsk->se.on_rq;

thanks, i've queued this up (pending more testing).

Btw., you should be able to force the ia64 scheduling by adding this to 
the very top of include/linux/sched.h:

#define __ARCH_WANT_UNLOCKED_CTXSW
#define __ARCH_WANT_INTERRUPTS_ON_CTXSW

	Ingo
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