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

[Dhaval Giani]

On Sat, Dec 15, 2007 at 11:22:08AM +0100, Dmitry Adamushko wrote:
> On 14/12/2007, Steven Rostedt <rostedt at goodmis.org> wrote:
> >
> > On Fri, 14 Dec 2007, Dmitry Adamushko wrote:
> >
> > >
> > > argh... it's a consequence of the 'current is not kept within the tree" indeed.
> > >
> >
> > Thanks Dmitry for tracking this down.
> 
> My analysis was flawed (hmm... me was under control of Belgium beer :-)
> 
> The task in not on the runqueue (p->on_rq == 0) at the moment when
> put_prev_task_fair() and set_curr_task_fair() get its turn in
> sched_move_task()... so dequeue/enqueue_entity() are not triggered,
> that's good.
> 

Again, I am probably missing something, but if on_rq == 0, then how is
set_curr_task_fair() getting called?

-- 
regards,
Dhaval
_______________________________________________
Containers mailing list
Containers at lists.linux-foundation.org
https://lists.linux-foundation.org/mailman/listinfo/containers