On Thu, 18 Sep 2008, Justin Mattock wrote:

quoted text
> > You are concentrating on the symptom instead of the problem.  The
> > symptom is that "Disabling IRQ #23" message -- don't worry about it.
> >
> > The underlying problem is the "ehci_hcd 0000:00:1d.7: HC died;
> > cleaning up" message -- it should _never_ appear.  If you have a
> > reliable way of provoking it then something needs to be fixed.
> >
> > Alan Stern
> >
> >
> 
> The reliable way of provoking this message is

Which message?  The "Disabling IRQ #23" message or the "HC died; 
cleaning up" message?

quoted text
> when uvcvideo is loading(not the module, but the tools involved with
> the communication of loading the firmware and module).
> i.g. when using the udev approach with isight-firware-tools
> I will receive this, but if I use the hal approach
> this message does not appear. Now with using the udev approach
> I did try this patch:(not knowing what it really was doing),
> http://www.gossamer-threads.com/lists/linux/kernel/966076
> And it seems this message has not appeared. From looking at the
> situation after running this patch irregardless if it was intended for this
> or not, I'm wondering if isight-firware-tools is the main issue with this
> rather than the kernel.

It doesn't matter what tools or other userspace programs you run; the 
"HC died; cleaning up" message should _never_ appear.

Alan Stern

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