Unsupported USB BT device causes high interrupt load

[Adrian Chadd]

can you capture a usb transfer dump from usbdump ?

I'd like to see if it's because the usb bluetooth code is trying to
attach and failing, or whether it really is just some broken transfer
/ notification loop.


-a


On 6 April 2017 at 03:16, Dominic Fandrey <kami at freebsd.org> wrote:
> I have an Interrupt load of 2000 interrupts/s from xhci0.
>
> As the culprit I have identified the following device:
>
> ugen0.6: <vendor 0x8087 product 0x07dc> at usbus0, cfg=255 md=HOST spd=FULL (12Mbps) pwr=ON (100mA)
>
> The impression I have from googling this is that it's an unsupported
> BT device sitting on board of my Intel Wireless AC 7260 card (I also
> have an unsupported SD/MMC card reader sitting on the mainboard).
>
> usbconfig -d 0.6 power_off
>
> Ends the interrupt spree.
>
> I'm running FreeBSD 11.0-STABLE #1 r316490 amd64.
>
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