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SubjectRe: [GIT PULL] USB driver fixes for 3.18-rc7
On Sun, Nov 30, 2014 at 11:47:20AM -0800, Linus Torvalds wrote:
> Hmm, Greg.
>
> I seem to get this problem possibly more commonly at boot these days:
>
> usb 1-6: new full-speed USB device number 2 using xhci_hcd
> usb 1-6: device descriptor read/64, error -71
> xhci_hcd 0000:00:14.0: Setup ERROR: setup context command for slot 1.
> usb 1-6: hub failed to enable device, error -22
> usb 1-6: new full-speed USB device number 3 using xhci_hcd
> usb 1-6: device descriptor read/64, error -71
> usb 1-6: hub failed to enable device, error -22
> usb 1-6: new full-speed USB device number 4 using xhci_hcd
> usb 1-6: Device not responding to setup address.
> usb 1-6: Device not responding to setup address.
> usb 1-6: device not accepting address 4, error -71
> usb 1-6: new full-speed USB device number 5 using xhci_hcd
> usb 1-6: Device not responding to setup address.
> usb 1-6: Device not responding to setup address.
> usb 1-6: device not accepting address 5, error -71
> usb usb1-port6: unable to enumerate USB device
>
> and my keyboard doesn't work. I then unplug and re-plug it, and get
>
> usb 1-6: new full-speed USB device number 9 using xhci_hcd
> usb 1-6: New USB device found, idVendor=2516, idProduct=0020
> usb 1-6: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> usb 1-6: Product: Quickfire Rapid i
> usb 1-6: Manufacturer: CM Storm
>
> Any ideas? Some setup delay that isn't long enough at boot time for a
> slightly finicky device? It has happened before, but now I've gotten
> it twice within a couple of days:
>
> Nov 02 12:18:56 i7.lan kernel: usb 1-6: device descriptor read/64, error -71
> Nov 28 16:54:06 i7.lan kernel: usb 1-6: device descriptor read/64, error -71
> Nov 30 11:26:35 i7.lan kernel: usb 1-6: device descriptor read/64, error -71
>
> (I've had this keyboard since mid-September, and looking at the logs
> this machine has been rebooted 41 times since, with those three
> failures..)

I've been seeing this occasionally recently as well, but was blaming a
"bad" USB 3 hub I have here that I use, and the problem goes away with a
replug.

Mathias, any ideas what is going on here?

thanks,

greg k-h

>
> Linus


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