RE: SMP irq sharing problem in 2.2.17

From: Dunlap, Randy (randy.dunlap@intel.com)
Date: Fri Oct 13 2000 - 10:05:35 EST


> > I had a similar problem with the USB driver assigned to
> IRQ19 but not receiving any interrupts.
> >
> > Perhaps someone more knowledgable can explain why linux
> fails under MPS1.4.
>
> Linux is fine with MPS1.4. There are two possible causes I see
>
> 1. Some clown built a USB controller with only 4 bits of
> the IRQ line
> writable/checkable. We've seen sound chips with that 'feature'
>
> 2. The MPS 1.4 tables in the BIOS are wrong. Remarkably
> common problem

Do we have any [non-kernel] software that will read/analyze MPS
tables?

Thanks,
~Randy

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