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SubjectRe: [debug PATCHes] Re: smp_call_function_single lockups

* Chris J Arges <chris.j.arges@canonical.com> 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


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