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SubjectRe: BUG on 3.0-rc on commit d72bce0e67e8afc6eb959f656013cbb577426f1e
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On Mon, 2011-06-13 at 21:24 -0400, Steven Rostedt wrote:
> On Mon, 2011-06-13 at 19:05 -0500, Andrew Theurer wrote:
>
> > > Could you try this patch?
> >
> > Yes, and it works! Thanks very much!
>
> Could you try this patch instead? I don't like holding off migration for
> the entire boot processes.

Sure, just tested this one, and it works fine as well.

-Andrew
>
> -- Steve
>
> diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
> index 88725c9..4505bfb 100644
> --- a/kernel/sched_rt.c
> +++ b/kernel/sched_rt.c
> @@ -1239,6 +1239,10 @@ static int find_lowest_rq(struct task_struct *task)
> int this_cpu = smp_processor_id();
> int cpu = task_cpu(task);
>
> + /* Make sure the mask is initialized first */
> + if (unlikely(!lowest_mask))
> + return -1;
> +
> if (task->rt.nr_cpus_allowed == 1)
> return -1; /* No other targets possible */
>
>
>




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