> > Le Lundi 25 Juillet 2005 22:44, Alan Stern a écrit :
> > >
> > > Now that's strange. When you plug the high-speed device into the
> > > integrated ports, which IRQ counter changes? Since
> nothing is using
> > > IRQ 21, it should be disabled and its counter should remain
> > > constant. Does this mean the interrupts show up on IRQ
> 19 (used by
> > > ehci-hcd), or do they not show up at all (i.e., is the
> USB connection just being polled)?
> >
> > I assume it's IRQ 19.
> >
> > cat /proc/interrupts doesn't show IRQ21 at all when uhci
> isn't loaded.
>
> As it shouldn't, since nothing is supposed to be using that IRQ.
>
> > IRQ 19 being shared with 4 IDE controllers that controls my hard
> > drives, that's hard to isolate interrupts counts due to USB
> activity
> > from interrupts counts due to disks activity...
>
> I was afraid you'd say that...
>
> Natalie, that's all I can think of. Now it's up to you to
> invent a patch Michel can try out, to show just where the
> IO-APIC code is going wrong.
I will sure try... I'm keeping an eye on your exchange don't worry :)
just have to get done with urgent work piled up here while on my trip :< ...
--N
> Alan Stern
>
>
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