Re: [patch, -rc5-mm1] locking validator: special rule: 8390.c disable_irq()

Arjan van de Ven
2006-05-31T21:44:10Z

On Wed, 2006-05-31 at 17:41 -0400, Alan Cox wrote:
> On Wed, May 31, 2006 at 10:31:40PM +0200, Arjan van de Ven wrote:
> > > 8390.c knows that ei_local->page_lock can only be used by an irq
> > > context that it disabled -
> >
> > btw I think this is no longer correct with the irq polling stuff Alan
> > added to the kernel recently...
>
> We could make the misrouted IRQ logic skip all handlers on a disabled IRQ
> but that might actually be worse than the disease we are trying to cure by
> doing so.

yeah since misrouted irqs will cause the kernel do disable irqs 'at
random' more or less .. for which the handlers now would become
unreachable which isn't good.