Re: DEBUG_STACKOVERFLOW issue on ARM

[Russell King - ARM Linux]

On Thu, Oct 11, 2012 at 01:09:46PM +0530, vaibhav shinde wrote:
> 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.

Sounds like something has been broken, no idea what.  It needs investigation.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/