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SubjectRe: [BUG: NULL pointer dereference] cgroups and RT scheduling interact badly.
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On Mon, 2008-06-16 at 15:14 +0200, Daniel K. wrote:
> Peter Zijlstra wrote:
> > Does the below work for you?
> >
> > Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
> > ---
> > Index: linux-2.6/kernel/sched.c
> > ===================================================================
> > --- linux-2.6.orig/kernel/sched.c
> > +++ linux-2.6/kernel/sched.c
> > @@ -7784,7 +7784,6 @@ static void init_tg_rt_entry(struct task
> > else
> > rt_se->rt_rq = parent->my_q;
> >
> > - rt_se->rt_rq = &rq->rt;
> > rt_se->my_q = rt_rq;
> > rt_se->parent = parent;
> > INIT_LIST_HEAD(&rt_se->run_list);
>
> Although this patch seems to be correct, this is what shows up on my
> netconsole, when applying it -- with an offset, do you have other fixes
> applied as well?

I had indeed, although nothing touching the rt scheduler. I popped all
my patches and pulled an update from Linus, but I fail to reproduce the
below.

/me goes look for that burnp6 thing, I used a simple while (1); loop.




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