linux-kernel - Re: [GIT PULL] USB driver fixes for 3.18-rc7

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Date:	Sun, 30 Nov 2014 11:47:20 -0800
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Greg KH <gregkh@...uxfoundation.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	USB list <linux-usb@...r.kernel.org>
Subject: Re: [GIT PULL] USB driver fixes for 3.18-rc7

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..)

              Linus
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