Re: DEBUG_STACKOVERFLOW issue on ARM

[vaibhav shinde]

Hi Russel,

On Fri, Oct 5, 2012 at 2:01 PM, Russell King - ARM Linux
<linux@xxxxxxxxxxxxxxxx> wrote:
>
> On Wed, Oct 03, 2012 at 05:18:56PM +0530, trisha yad wrote:
> > I wish to know how can I support this function in 3.0 ?
>
> If your description is correct, then all you need to do is to ensure
> that you route interrupts to other CPUs.
>
> You can do that by running the userspace irqbalance daemon.
>

I also tried with the irqbalance daemon, on ARM quad core architecture,
and as per my understanding, the daemon sets the
/proc/irq/<irq.no.>/smp_affinity
file according to the irq frequency on a particular processor.

          However, the daemon doesn't work as expected, I also tried
accessing the
proc file mentioned above to set the cpu mask for particular irq, but this
just block the processing of the irq, as I see the count of that irq
doesnt increase
in /proc/interrupts.

            My conclusion is that the irqbalancing is not supported on
ARM arch or there is
something  more required for this to work. Kindly provide some
pointers over this.

Regards,
Vaibhav
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