Aw: Re: Re: Intel XHCI: random URB_INTERRUPTs triggering port resets and device disconnects

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> You've got it backward.  The disconnect isn't _caused_ by the interrupt
> URB; rather, the interrupt URB _reports_ the disconnect to the kernel.  
> In other words, the disconnect occurs first and then the interrupt URB
> completes.

Then I guess the traces aren't the right way to investigate the issue, because they report on the effects and not on the cause.

What can constitute a disconnect if there is no signalling from the device? Device/hub power-cycles the link?

What other troubleshooting options do I have? Is there more debugging output that I can enable?

Will it help to raise a formal bug? Or did I do it already? :)

Thanks

Eugen
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