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[Xen-devel] RE: [PATCH] irq: Exclude percpu IRQs from being fixed up



> >>>
> >> IRQ_PER_CPU switch is not found in current Kconfig. I'm not sure if this
> >
> > kernel/irq/Kconfig (introduced as a generic option in 2.6.38-rc2). In
> > prior kernel you'd have to add a respective Kconfig item in
> > drivers/xen/Kconfig.
> >
> >> feature is going to be brought back in the short term. I remove the
> >> ifdef to set IRQ_PER_CPU flag in desc by default but still leave the IRQ
> >> handling logic unchanged. This is a temporary solution to fix system
> >> crash on poweroff. And this is the fix with minimum impact among the
> >> several solutions we tried.
> >
> > But it's more a hack than a fix. And making per-CPU IRQs properly
> 
> Yes, that's true. Switching on IRQ_PER_CPU can make this patch neat. But
> that isn't my call.

Jeremy, would you consider the change to fix this issue?
Thanks!
-Xin

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