Re: 2.2.2 hw int differences?
Doug Ledford (dledford@redhat.com)
Wed, 10 Mar 1999 14:55:38 -0500
Jeffrey Jones wrote:
>
> Hello,
>
> I'm trying to figure out what the differences is in the way IRQ's are
> handled between
> 2.2.0 and 2.2.2... I haven't tried 2.2.1 or 2.2.3 so I don't know how they
> fit in to the
> picture, but when I call request_irq() it says it succeeds in 2.2.2 but then
> the handler
> is never called when that IRQ is generated by the hardware. With everything
> exactly the same, it works under 2.2.0. Both were compiled with all the
> default config options. It
> only occurs on certain systems. What changed in the kernel?
Boot the afflicted machines with the kernel option noapic (or is it no_apic,
Ingo?) to disable the io_apic code and I bet your interrupts start coming
through again.
--
Doug Ledford <dledford@redhat.com>
Opinions expressed are my own, but
they should be everybody's.
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