Re: [debug PATCHes] Re: smp_call_function_single lockups

[Ingo Molnar]

* Chris J Arges <chris.j.arges@xxxxxxxxxxxxx> wrote:

> > diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
> > index 6cedd7914581..79d6de6fdf0a 100644
> > --- a/arch/x86/kernel/apic/vector.c
> > +++ b/arch/x86/kernel/apic/vector.c
> > @@ -144,6 +144,8 @@ __assign_irq_vector(int irq, struct irq_cfg *cfg, const struct cpumask *mask)
> >  			cfg->move_in_progress =
> >  			   cpumask_intersects(cfg->old_domain, cpu_online_mask);
> >  			cpumask_and(cfg->domain, cfg->domain, tmp_mask);
> > +			if (cfg->move_in_progress)
> > +				dump_stack();
> >  			break;
> >  		}
> >  
> > 
> 
> Should I add the dump_stack() to the 'new-domain move' area line 
> ~184 since that's the path I seem to be triggering?

Yeah, please do, that's what I wanted to mark.

My guess is that it will show a stack dump to within set_affinity().

Thanks,

	Ingo
--
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/