Re: kzm9g boot fail (was Re: irqdomain breaks ap4 boot)

[Paul Mundt <lethal@linux-sh.org>]

On Sun, Aug 19, 2012 at 06:14:41PM -0700, Kuninori Morimoto wrote:
> 
> Hi Paul
> 
> Thank you for your patch
> 
> > > diff --git a/drivers/sh/intc/core.c b/drivers/sh/intc/core.c
> > > index 32c26d7..8f32a13 100644
> > > --- a/drivers/sh/intc/core.c
> > > +++ b/drivers/sh/intc/core.c
> > > @@ -355,7 +355,7 @@ int __init register_intc_controller(struct intc_desc *desc)
> > >   			if (unlikely(res)) {
> > >   				if (res = -EEXIST) {
> > >   					res = irq_domain_associate(d->domain,
> > > -								   irq, irq);
> > > +								   irq2, irq2);
> > >   					if (unlikely(res)) {
> > >   						pr_err("domain association "
> > >   						       "failure\n");
> > 
> > I tried this patch but there is still the same error.
> > I checked quickly by debugger, and I found the failing 
> > irq_domain_associate() is not called here (line 357) but the one at line 
> > 328.
> 
> But, I got same result.
> 
> This WARNING is indicating
> > intc: domain association failure    
>       
> So, as kobayashi-san said, 
> it has happend on previous irq_domain_associate(), not here.
> 
Can you post a boot log with the pr_debug() output in the irqdomain code
enabled? You may need to add ignore_loglevel to your kernel command line.

If that doesn't produce any further clues I'll have to find one of these
boards to see what's going on.

---

diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 49a7772..3b39c0e 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -1,5 +1,7 @@
 #define pr_fmt(fmt)  "irq: " fmt
 
+#define DEBUG
+
 #include <linux/debugfs.h>
 #include <linux/hardirq.h>
 #include <linux/interrupt.h>