Re: [Xen-users] Re: usb keyboard and mouse not functioning

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

> > *why* the IRQ got disabled?
>
> Yes, it's linux/kernel/irq/spurious.c:note_interrupt() hitting the
> "100000 irqs with 99900 unhandled" limit and killing as a bad IRQ:

OK, that's what I was hoping for.

> I just don't know why we're getting that flood of unhandled interrupts
> on irq16 with xen0 and not on native.

Nope.  And I wonder why apparently exactly 100 were handled...

Does the rate at which the IRQs happen correspond to USB activity in any 
obvious way?  i.e. are the IRQs actually doing something useful or *might* 
they be spurious.

It would seem weird for the uhci driver to refuse to service them, though...

You're not running any driver domains, are you?

> I'll reboot to native and see if there's any obvious difference in the
> irq configuration there.

Seems like a good plan!

Cheers,
Mark

-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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