Slow boot due to USB errors

[drago01]

Hi,

Startup finished in 8.394s (firmware) + 590ms (loader) + 918ms
(kernel) + 19.389s (initrd) + 1.940s (userspace) = 31.234s

~19.4 seconds during initrd seems like a bit much ... looking at the
log output I have noticed this:

[    3.306309] usb 1-4: new full-speed USB device number 3 using xhci_hcd
[    5.502178] usb 1-4: unable to read config index 0 descriptor/start: -71
[    5.502190] usb 1-4: can't read configurations, error -71
[    5.655591] usb 1-4: new full-speed USB device number 4 using xhci_hcd
[    7.699049] usb 1-4: unable to read config index 0 descriptor/start: -71
[    7.699060] usb 1-4: can't read configurations, error -71
[    7.851791] usb 1-4: new full-speed USB device number 5 using xhci_hcd
[    9.895842] usb 1-4: unable to read config index 0 descriptor/start: -71
[    9.895854] usb 1-4: can't read configurations, error -71
[    9.895997] hub 1-0:1.0: unable to enumerate USB device on port 4
[   10.048994] usb 1-5: new high-speed USB device number 6 using xhci_hcd
[   10.363192] usb 1-5: New USB device found, idVendor=0bda, idProduct=58b1
[   10.363202] usb 1-5: New USB device strings: Mfr=3, Product=1, SerialNumber=2
[   10.363208] usb 1-5: Product: FJ Camera
[   10.363212] usb 1-5: Manufacturer: Generic
[   10.363215] usb 1-5: SerialNumber: 200901010001
[   10.519824] usb 1-7: new full-speed USB device number 7 using xhci_hcd
[   10.684975] usb 1-7: New USB device found, idVendor=8087, idProduct=07dc
[   10.684986] usb 1-7: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[   10.942675] usb 1-4: new full-speed USB device number 8 using xhci_hcd
[   13.139694] usb 1-4: unable to read config index 0 descriptor/start: -71
[   13.139731] usb 1-4: can't read configurations, error -71
[   13.292830] usb 1-4: new full-speed USB device number 9 using xhci_hcd
[   15.489755] usb 1-4: unable to read config index 0 descriptor/start: -71
[   15.489766] usb 1-4: can't read configurations, error -71
[   15.642970] usb 1-4: new full-speed USB device number 10 using xhci_hcd
[   17.687316] usb 1-4: unable to read config index 0 descriptor/start: -71
[   17.687328] usb 1-4: can't read configurations, error -71
[   17.840189] usb 1-4: new full-speed USB device number 11 using xhci_hcd
[   19.884509] usb 1-4: unable to read config index 0 descriptor/start: -71
[   19.884522] usb 1-4: can't read configurations, error -71
[   19.884617] hub 1-0:1.0: unable to enumerate USB device on port 4
[   19.919050] PM: Starting manual resume from disk
[   19.940256] EXT4-fs (sda4): mounted filesystem with ordered data
mode. Opts: (null)
[   20.172347] usb 1-4: new full-speed USB device number 12 using xhci_hcd


So  the questions are 1) what do those message actually mean? Seems
like everything works anyway 2) why do those block the boot process
... its not like the root fs is on a usb driver or something.

Kernel is 3.14.3-200.fc20.x86_64 (but does this not seem to matter it
happens for pretty much every kernel for almost every but not all boot
ups).

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 007: ID 8087:07dc Intel Corp.
Bus 001 Device 006: ID 0bda:58b1 Realtek Semiconductor Corp.
Bus 001 Device 012: ID 04f3:009b Elan Microelectronics Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Any ideas where to investigate? Those error messages are really
cryptic and do not tell me anything.

Thanks