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SubjectRe: Regression: unable to boot after commit bd9240a18edf ("x86/apic: Add TSC_DEADLINE quirk due to errata") - Surface Pro 4 SKL
On Wed, Dec 20, 2017 at 10:08:21PM +0800, Zhang Rui wrote:

> > Does this help?
> >
> No.

Bah!, does this at least get you a IRQ0 line in /proc/interrupts?

> > diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
> > index 749d189f8cd4..45675072771c 100644
> > --- a/arch/x86/kernel/time.c
> > +++ b/arch/x86/kernel/time.c
> > @@ -69,8 +69,6 @@ static struct irqaction irq0  = {
> >  
> >  static void __init setup_default_timer_irq(void)
> >  {
> > - if (!nr_legacy_irqs())
> > - return;
> >   setup_irq(0, &irq0);
> >  }
> >  

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