Slow boot due to USB errors
drago01
drago01 at gmail.com
Sun May 11 16:16:20 UTC 2014
On Sun, May 11, 2014 at 6:08 PM, poma <pomidorabelisima at gmail.com> wrote:
> On 11.05.2014 08:37, Hans de Goede wrote:
>> Hi,
>>
>> On 05/10/2014 08:00 PM, drago01 wrote:
>>> On Sat, May 10, 2014 at 7:49 PM, Hans de Goede <hdegoede at redhat.com> wrote:
>>>> Hi,
>>>>
>>>> On 05/10/2014 05:13 PM, drago01 wrote:
>>>>> 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.
>>>>
>>>> -71 means EPROTO, note the device causing these issues is likely not
>>>> in your lsusb output since it fails to enumerate.
>>>>
>>>> linux/Documentation/usb/error-codes.txt says the following about EPROTO:
>>>>
>>>> -EPROTO (*, **) a) bitstuff error
>>>> b) no response packet received within the
>>>> prescribed bus turn-around time
>>>> c) unknown USB error
>>>>
>>>> (*) Error codes like -EPROTO, -EILSEQ and -EOVERFLOW normally indicate
>>>> hardware problems such as bad devices (including firmware) or cables.
>>>>
>>>> (**) This is also one of several codes that different kinds of host
>>>> controller use to indicate a transfer has failed because of device
>>>> disconnect. In the interval before the hub driver starts disconnect
>>>> processing, devices may receive such fault reports for every request.
>>>>
>>>>
>>>> Your boot log indicated that eventually the device on Bus 1 port 4
>>>> does enumerate and is the "Elan Microelectronics Corp." device which
>>>> likely is a touchscreen or a touchpad (if this is a tablet device
>>>> with a keyboard dock). Possibly the cable from the touchpad / touchscreen
>>>> has a loose contact somewhere.
>>>
>>> I know that 1-4 is the touchscreen (its an ultrabook with a
>>> touchscreen) ... the touchscreen itself works just fine though.
>>> So if it takes more time / attempts to enumerate it and it works
>>> eventually anyway why do we block boot on it?
>>
>> That is a question for the systemd people / list.
>
> systemd-devel@, WTF!? :)
> systemd ain't kernel!
>
>>> The only effect of it is slow boot. Also not sure about the loose
>>> cable thing ... its a not so old laptop why would the cable be
>>> suddenly be lose?
>>
>> I had my laptop display die on me in the first few weeks, since it is
>> not old, chances are your laptop is still in the infant mortality part
>> of the bathtub curve: http://www.weibull.com/hotwire/issue21/ht21_1.gif
>>
>> And even if it is not hardware does fail. As
>> linux/Documentation/usb/error-codes.txt says, and so does my own
>> experience these type of errors typically come from hardware problems.
>>
>> Regards,
>>
>> Hans
>
> This is an example of a faulty wiring,
> ...
> [ 1.034653] usb 2-3: new high-speed USB device number 2 using ehci-pci
> [ 1.233643] usb 2-3: device descriptor read/64, error -71
> [ 1.728627] usb 2-3: new high-speed USB device number 3 using ehci-pci
> [ 2.116663] usb 2-3: new high-speed USB device number 4 using ehci-pci
> [ 2.315730] usb 2-3: device descriptor read/64, error -71
> [ 2.615645] usb 2-3: device descriptor read/64, error -71
> [ 2.820711] usb 2-3: new high-speed USB device number 5 using ehci-pci
> [ 3.019698] usb 2-3: device descriptor read/64, error -71
> [ 3.506694] usb 2-3: new high-speed USB device number 6 using ehci-pci
> [ 3.892698] usb 2-3: new high-speed USB device number 7 using ehci-pci
> [ 4.278694] usb 2-3: new high-speed USB device number 8 using ehci-pci
> [ 4.663694] usb 2-3: new high-speed USB device number 9 using ehci-pci
> [ 4.861637] usb 2-3: device descriptor read/64, error -71
> [ 5.347636] usb 2-3: new high-speed USB device number 10 using ehci-pci
> [ 5.732694] usb 2-3: new high-speed USB device number 11 using ehci-pci
> [ 5.930693] usb 2-3: device descriptor read/64, error -71
> [ 6.416693] usb 2-3: new high-speed USB device number 12 using ehci-pci
> [ 6.801692] usb 2-3: new high-speed USB device number 13 using ehci-pci
> [ 7.186693] usb 2-3: new high-speed USB device number 14 using ehci-pci
> [ 7.571692] usb 2-3: new high-speed USB device number 15 using ehci-pci
> [ 7.956637] usb 2-3: new high-speed USB device number 16 using ehci-pci
> [ 8.341692] usb 2-3: new high-speed USB device number 17 using ehci-pci
> [ 8.726692] usb 2-3: new high-speed USB device number 18 using ehci-pci
> [ 9.111690] usb 2-3: new high-speed USB device number 19 using ehci-pci
> [ 9.496691] usb 2-3: new high-speed USB device number 20 using ehci-pci
> [ 9.881695] usb 2-3: new high-speed USB device number 21 using ehci-pci
> [ 10.266632] usb 2-3: new high-speed USB device number 22 using ehci-pci
> [ 10.651690] usb 2-3: new high-speed USB device number 23 using ehci-pci
> [ 10.849699] usb 2-3: device descriptor read/64, error -71
> [ 11.148690] usb 2-3: device descriptor read/64, error -71
> [ 11.352691] usb 2-3: new high-speed USB device number 24 using ehci-pci
> [ 11.737690] usb 2-3: new high-speed USB device number 25 using ehci-pci
> [ 12.122690] usb 2-3: new high-speed USB device number 26 using ehci-pci
> [ 12.507691] usb 2-3: new high-speed USB device number 27 using ehci-pci
> [ 12.892695] usb 2-3: new high-speed USB device number 28 using ehci-pci
> [ 13.277631] usb 2-3: new high-speed USB device number 29 using ehci-pci
> [ 13.661691] usb 2-3: new high-speed USB device number 30 using ehci-pci
> [ 14.045692] usb 2-3: new high-speed USB device number 31 using ehci-pci
> [ 14.429630] usb 2-3: new high-speed USB device number 32 using ehci-pci
> [ 14.813702] usb 2-3: new high-speed USB device number 33 using ehci-pci
> [ 15.197690] usb 2-3: new high-speed USB device number 34 using ehci-pci
> [ 15.581630] usb 2-3: new high-speed USB device number 35 using ehci-pci
> [ 15.965692] usb 2-3: new high-speed USB device number 36 using ehci-pci
> [ 16.349688] usb 2-3: new high-speed USB device number 37 using ehci-pci
> [ 16.733689] usb 2-3: new high-speed USB device number 38 using ehci-pci
> [ 17.117633] usb 2-3: new high-speed USB device number 39 using ehci-pci
> [ 17.501688] usb 2-3: new high-speed USB device number 40 using ehci-pci
> [ 17.885640] usb 2-3: new high-speed USB device number 41 using ehci-pci
> [ 18.269688] usb 2-3: new high-speed USB device number 42 using ehci-pci
> [ 18.653687] usb 2-3: new high-speed USB device number 43 using ehci-pci
> [ 19.037691] usb 2-3: new high-speed USB device number 44 using ehci-pci
> [ 19.421689] usb 2-3: new high-speed USB device number 45 using ehci-pci
> [ 19.805687] usb 2-3: new high-speed USB device number 46 using ehci-pci
> [ 20.189629] usb 2-3: new high-speed USB device number 47 using ehci-pci
> [ 20.573628] usb 2-3: new high-speed USB device number 48 using ehci-pci
> [ 20.957691] usb 2-3: new high-speed USB device number 49 using ehci-pci
> [ 21.341687] usb 2-3: new high-speed USB device number 50 using ehci-pci
> [ 21.725687] usb 2-3: new high-speed USB device number 51 using ehci-pci
> [ 21.922691] usb 2-3: device descriptor read/64, error -71
> [ 22.407627] usb 2-3: new high-speed USB device number 52 using ehci-pci
> [ 22.791686] usb 2-3: new high-speed USB device number 53 using ehci-pci
> [ 23.175685] usb 2-3: new high-speed USB device number 54 using ehci-pci
> [ 23.559686] usb 2-3: new high-speed USB device number 55 using ehci-pci
> [ 23.943690] usb 2-3: new high-speed USB device number 56 using ehci-pci
> [ 24.140626] usb 2-3: device descriptor read/64, error -71
> [ 24.625626] usb 2-3: new high-speed USB device number 57 using ehci-pci
> [ 25.009630] usb 2-3: new high-speed USB device number 58 using ehci-pci
> [ 25.393685] usb 2-3: new high-speed USB device number 59 using ehci-pci
> [ 25.777685] usb 2-3: new high-speed USB device number 60 using ehci-pci
> [ 26.161685] usb 2-3: new high-speed USB device number 61 using ehci-pci
> [ 26.545685] usb 2-3: new high-speed USB device number 62 using ehci-pci
> [ 26.929688] usb 2-3: new high-speed USB device number 63 using ehci-pci
> [ 27.126625] usb 2-3: device descriptor read/64, error -71
> [ 27.424625] usb 2-3: device descriptor read/64, error -71
> [ 27.627625] usb 2-3: new high-speed USB device number 64 using ehci-pci
> [ 28.011634] usb 2-3: new high-speed USB device number 65 using ehci-pci
> [ 28.395683] usb 2-3: new high-speed USB device number 66 using ehci-pci
> [ 28.779683] usb 2-3: new high-speed USB device number 67 using ehci-pci
> [ 28.976682] usb 2-3: device descriptor read/64, error -71
> [ 29.461685] usb 2-3: new high-speed USB device number 68 using ehci-pci
> [ 29.845692] usb 2-3: new high-speed USB device number 69 using ehci-pci
> [ 30.304617] usb 4-3: new full-speed USB device number 2 using ohci-pci
> [ 35.485636] usb 4-3: not running at top speed; connect to a high speed hub
> [ 35.502401] usb 4-3: New USB device found, idVendor=0ea0, idProduct=2168
> [ 35.504571] usb 4-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> [ 35.506713] usb 4-3: Product: Flash Disk
> [ 35.508857] usb 4-3: Manufacturer: USB
> [ 36.585998] usb-storage 4-3:1.0: USB Mass Storage device detected
> [ 36.586151] scsi8 : usb-storage 4-3:1.0
> [ 36.586243] usbcore: registered new interface driver usb-storage
> [ 189.039504] usb 4-3: USB disconnect, device number 2
> [ 196.595288] usb 2-3: new high-speed USB device number 70 using ehci-pci
> [ 196.792292] usb 2-3: device descriptor read/64, error -71
> [ 197.090325] usb 2-3: device descriptor read/64, error -71
> [ 197.293389] usb 2-3: new high-speed USB device number 71 using ehci-pci
> [ 197.490306] usb 2-3: device descriptor read/64, error -71
> [ 197.788337] usb 2-3: device descriptor read/64, error -71
> [ 197.991368] usb 2-3: new high-speed USB device number 72 using ehci-pci
> [ 198.455344] usb 2-3: device not accepting address 72, error -71
> [ 198.557382] usb 2-3: new high-speed USB device number 73 using ehci-pci
> [ 199.021366] usb 2-3: device not accepting address 73, error -71
> [ 199.021456] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 199.259454] usb 2-3: new high-speed USB device number 74 using ehci-pci
> [ 199.456434] usb 2-3: device descriptor read/64, error -71
> [ 199.755478] usb 2-3: device descriptor read/64, error -71
> [ 199.958446] usb 2-3: new high-speed USB device number 75 using ehci-pci
> [ 200.155467] usb 2-3: device descriptor read/64, error -71
> [ 200.454457] usb 2-3: device descriptor read/64, error -71
> [ 200.657508] usb 2-3: new high-speed USB device number 76 using ehci-pci
> [ 201.119465] usb 2-3: device not accepting address 76, error -71
> [ 201.221519] usb 2-3: new high-speed USB device number 77 using ehci-pci
> [ 201.683482] usb 2-3: device not accepting address 77, error -71
> [ 201.683541] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 201.921590] usb 2-3: new high-speed USB device number 78 using ehci-pci
> [ 202.117621] usb 2-3: device descriptor read/64, error -71
> [ 202.414579] usb 2-3: device descriptor read/64, error -71
> [ 202.617659] usb 2-3: new high-speed USB device number 79 using ehci-pci
> [ 202.813557] usb 2-3: device descriptor read/64, error -71
> [ 203.110611] usb 2-3: device descriptor read/64, error -71
> [ 203.313623] usb 2-3: new high-speed USB device number 80 using ehci-pci
> [ 203.775537] usb 2-3: device not accepting address 80, error -71
> [ 203.877689] usb 2-3: new high-speed USB device number 81 using ehci-pci
> [ 204.339613] usb 2-3: device not accepting address 81, error -71
> [ 204.339695] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 204.578671] usb 2-3: new high-speed USB device number 82 using ehci-pci
> [ 204.774653] usb 2-3: device descriptor read/64, error -71
> [ 205.071673] usb 2-3: device descriptor read/64, error -71
> [ 205.274641] usb 2-3: new high-speed USB device number 83 using ehci-pci
> [ 205.470672] usb 2-3: device descriptor read/64, error -71
> [ 205.767698] usb 2-3: device descriptor read/64, error -71
> [ 205.970671] usb 2-3: new high-speed USB device number 84 using ehci-pci
> [ 206.432703] usb 2-3: device not accepting address 84, error -71
> [ 206.534753] usb 2-3: new high-speed USB device number 85 using ehci-pci
> [ 206.996704] usb 2-3: device not accepting address 85, error -71
> [ 206.996774] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 207.234764] usb 2-3: new high-speed USB device number 86 using ehci-pci
> [ 207.430794] usb 2-3: device descriptor read/64, error -71
> [ 207.727750] usb 2-3: device descriptor read/64, error -71
> [ 207.930820] usb 2-3: new high-speed USB device number 87 using ehci-pci
> [ 208.126828] usb 2-3: device descriptor read/64, error -71
> [ 208.423833] usb 2-3: device descriptor read/64, error -71
> [ 208.626865] usb 2-3: new high-speed USB device number 88 using ehci-pci
> [ 209.088800] usb 2-3: device not accepting address 88, error -71
> [ 209.190948] usb 2-3: new high-speed USB device number 89 using ehci-pci
> [ 209.653917] usb 2-3: device not accepting address 89, error -71
> [ 209.654013] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 209.892898] usb 2-3: new high-speed USB device number 90 using ehci-pci
> [ 210.088899] usb 2-3: device descriptor read/64, error -71
> [ 210.385882] usb 2-3: device descriptor read/64, error -71
> [ 210.588859] usb 2-3: new high-speed USB device number 91 using ehci-pci
> [ 210.784901] usb 2-3: device descriptor read/64, error -71
> [ 211.081926] usb 2-3: device descriptor read/64, error -71
> [ 211.284970] usb 2-3: new high-speed USB device number 92 using ehci-pci
> [ 211.747895] usb 2-3: device not accepting address 92, error -71
> [ 211.849983] usb 2-3: new high-speed USB device number 93 using ehci-pci
> [ 212.313956] usb 2-3: device not accepting address 93, error -71
> [ 212.314047] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 212.552948] usb 2-3: new high-speed USB device number 94 using ehci-pci
> [ 212.750024] usb 2-3: device descriptor read/64, error -71
> [ 213.048029] usb 2-3: device descriptor read/64, error -71
> [ 213.251078] usb 2-3: new high-speed USB device number 95 using ehci-pci
> [ 213.448054] usb 2-3: device descriptor read/64, error -71
> [ 213.746097] usb 2-3: device descriptor read/64, error -71
> [ 213.949111] usb 2-3: new high-speed USB device number 96 using ehci-pci
> [ 214.413079] usb 2-3: device not accepting address 96, error -71
> [ 214.515130] usb 2-3: new high-speed USB device number 97 using ehci-pci
> [ 214.979170] usb 2-3: device not accepting address 97, error -71
> [ 214.979270] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 215.217181] usb 2-3: new high-speed USB device number 98 using ehci-pci
> [ 215.414186] usb 2-3: device descriptor read/64, error -71
> [ 215.712193] usb 2-3: device descriptor read/64, error -71
> [ 215.915213] usb 2-3: new high-speed USB device number 99 using ehci-pci
> [ 216.113216] usb 2-3: device descriptor read/64, error -71
> [ 216.411240] usb 2-3: device descriptor read/64, error -71
> [ 216.615224] usb 2-3: new high-speed USB device number 100 using ehci-pci
> [ 217.080226] usb 2-3: device not accepting address 100, error -71
> [ 217.182349] usb 2-3: new high-speed USB device number 101 using ehci-pci
> [ 217.646248] usb 2-3: device not accepting address 101, error -71
> [ 217.646346] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 217.884377] usb 2-3: new high-speed USB device number 102 using ehci-pci
> [ 218.081325] usb 2-3: device descriptor read/64, error -71
> [ 218.379338] usb 2-3: device descriptor read/64, error -71
> [ 218.582357] usb 2-3: new high-speed USB device number 103 using ehci-pci
> [ 218.779362] usb 2-3: device descriptor read/64, error -71
> [ 219.077363] usb 2-3: device descriptor read/64, error -71
> [ 219.280375] usb 2-3: new high-speed USB device number 104 using ehci-pci
> [ 219.744425] usb 2-3: device not accepting address 104, error -71
> [ 219.846484] usb 2-3: new high-speed USB device number 105 using ehci-pci
> [ 220.310372] usb 2-3: device not accepting address 105, error -71
> [ 220.310433] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 220.548380] usb 2-3: new high-speed USB device number 106 using ehci-pci
> [ 220.744445] usb 2-3: device descriptor read/64, error -71
> [ 221.042434] usb 2-3: device descriptor read/64, error -71
> [ 221.246486] usb 2-3: new high-speed USB device number 107 using ehci-pci
> [ 221.442514] usb 2-3: device descriptor read/64, error -71
> [ 221.739466] usb 2-3: device descriptor read/64, error -71
> [ 221.942551] usb 2-3: new high-speed USB device number 108 using ehci-pci
> [ 222.404487] usb 2-3: device not accepting address 108, error -71
> [ 222.506635] usb 2-3: new high-speed USB device number 109 using ehci-pci
> [ 222.968539] usb 2-3: device not accepting address 109, error -71
> [ 222.968633] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 223.206608] usb 2-3: new high-speed USB device number 110 using ehci-pci
> [ 223.402674] usb 2-3: device descriptor read/64, error -71
> [ 223.699610] usb 2-3: device descriptor read/64, error -71
> [ 223.902717] usb 2-3: new high-speed USB device number 111 using ehci-pci
> [ 224.098646] usb 2-3: device descriptor read/64, error -71
> [ 224.395646] usb 2-3: device descriptor read/64, error -71
> [ 224.598657] usb 2-3: new high-speed USB device number 112 using ehci-pci
> [ 225.060664] usb 2-3: device not accepting address 112, error -71
> [ 225.162775] usb 2-3: new high-speed USB device number 113 using ehci-pci
> [ 225.624674] usb 2-3: device not accepting address 113, error -71
> [ 225.624750] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 225.862731] usb 2-3: new high-speed USB device number 114 using ehci-pci
> [ 226.058715] usb 2-3: device descriptor read/64, error -71
> [ 226.355780] usb 2-3: device descriptor read/64, error -71
> [ 226.558788] usb 2-3: new high-speed USB device number 115 using ehci-pci
> [ 226.754711] usb 2-3: device descriptor read/64, error -71
> [ 227.051758] usb 2-3: device descriptor read/64, error -71
> [ 227.254907] usb 2-3: new high-speed USB device number 116 using ehci-pci
> [ 227.716804] usb 2-3: device not accepting address 116, error -71
> [ 227.818848] usb 2-3: new high-speed USB device number 117 using ehci-pci
> [ 228.280900] usb 2-3: device not accepting address 117, error -71
> [ 228.281000] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 228.518967] usb 2-3: new high-speed USB device number 118 using ehci-pci
> [ 228.715871] usb 2-3: device descriptor read/64, error -71
> [ 229.012995] usb 2-3: device descriptor read/64, error -71
> [ 229.215926] usb 2-3: new high-speed USB device number 119 using ehci-pci
> [ 229.411928] usb 2-3: device descriptor read/64, error -71
> [ 229.709972] usb 2-3: device descriptor read/64, error -71
> [ 229.912978] usb 2-3: new high-speed USB device number 120 using ehci-pci
> [ 230.375958] usb 2-3: device not accepting address 120, error -71
> [ 230.478025] usb 2-3: new high-speed USB device number 121 using ehci-pci
> [ 230.940980] usb 2-3: device not accepting address 121, error -71
> [ 230.941060] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 231.179059] usb 2-3: new high-speed USB device number 122 using ehci-pci
> [ 231.376061] usb 2-3: device descriptor read/64, error -71
> [ 231.674086] usb 2-3: device descriptor read/64, error -71
> [ 231.877075] usb 2-3: new high-speed USB device number 123 using ehci-pci
> [ 232.074059] usb 2-3: device descriptor read/64, error -71
> [ 232.372111] usb 2-3: device descriptor read/64, error -71
> [ 232.575112] usb 2-3: new high-speed USB device number 124 using ehci-pci
> [ 233.040175] usb 2-3: device not accepting address 124, error -71
> [ 233.142206] usb 2-3: new high-speed USB device number 125 using ehci-pci
> [ 233.607063] usb 2-3: device not accepting address 125, error -71
> [ 233.607097] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 233.845277] usb 2-3: new high-speed USB device number 126 using ehci-pci
> [ 234.042287] usb 2-3: device descriptor read/64, error -71
> [ 234.340241] usb 2-3: device descriptor read/64, error -71
> [ 234.543318] usb 2-3: new high-speed USB device number 127 using ehci-pci
> [ 234.740264] usb 2-3: device descriptor read/64, error -71
> [ 235.039347] usb 2-3: device descriptor read/64, error -71
> [ 235.242355] usb 2-3: new high-speed USB device number 2 using ehci-pci
> [ 235.706244] usb 2-3: device not accepting address 2, error -71
> [ 235.808336] usb 2-3: new high-speed USB device number 3 using ehci-pci
> [ 236.272281] usb 2-3: device not accepting address 3, error -71
> [ 236.272366] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 236.510370] usb 2-3: new high-speed USB device number 4 using ehci-pci
> [ 236.708352] usb 2-3: device descriptor read/64, error -71
> [ 237.006461] usb 2-3: device descriptor read/64, error -71
> [ 237.209415] usb 2-3: new high-speed USB device number 5 using ehci-pci
> [ 237.406423] usb 2-3: device descriptor read/64, error -71
> [ 237.704500] usb 2-3: device descriptor read/64, error -71
> [ 237.907517] usb 2-3: new high-speed USB device number 6 using ehci-pci
> [ 238.371365] usb 2-3: device not accepting address 6, error -71
> [ 238.473496] usb 2-3: new high-speed USB device number 7 using ehci-pci
> [ 238.935440] usb 2-3: device not accepting address 7, error -71
> [ 238.935535] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 239.173538] usb 2-3: new high-speed USB device number 8 using ehci-pci
> [ 239.369497] usb 2-3: device descriptor read/64, error -71
> [ 239.666619] usb 2-3: device descriptor read/64, error -71
> [ 239.869488] usb 2-3: new high-speed USB device number 9 using ehci-pci
> [ 240.065586] usb 2-3: device descriptor read/64, error -71
> [ 240.362568] usb 2-3: device descriptor read/64, error -71
> [ 240.565612] usb 2-3: new high-speed USB device number 10 using ehci-pci
> [ 241.027589] usb 2-3: device not accepting address 10, error -71
> [ 241.129641] usb 2-3: new high-speed USB device number 11 using ehci-pci
> [ 241.591625] usb 2-3: device not accepting address 11, error -71
> [ 241.591723] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 241.830685] usb 2-3: new high-speed USB device number 12 using ehci-pci
> [ 242.026756] usb 2-3: device descriptor read/64, error -71
> [ 242.324714] usb 2-3: device descriptor read/64, error -71
> [ 242.527792] usb 2-3: new high-speed USB device number 13 using ehci-pci
> [ 242.723791] usb 2-3: device descriptor read/64, error -71
> [ 243.020816] usb 2-3: device descriptor read/64, error -71
> [ 243.223829] usb 2-3: new high-speed USB device number 14 using ehci-pci
> [ 243.685792] usb 2-3: device not accepting address 14, error -71
> [ 243.787878] usb 2-3: new high-speed USB device number 15 using ehci-pci
> [ 244.249774] usb 2-3: device not accepting address 15, error -71
> [ 244.249868] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 244.487858] usb 2-3: new high-speed USB device number 16 using ehci-pci
> [ 244.683854] usb 2-3: device descriptor read/64, error -71
> [ 244.980934] usb 2-3: device descriptor read/64, error -71
> [ 245.183935] usb 2-3: new high-speed USB device number 17 using ehci-pci
> [ 245.379893] usb 2-3: device descriptor read/64, error -71
> [ 245.676884] usb 2-3: device descriptor read/64, error -71
> [ 245.879931] usb 2-3: new high-speed USB device number 18 using ehci-pci
> [ 246.341877] usb 2-3: device not accepting address 18, error -71
> [ 246.443893] usb 2-3: new high-speed USB device number 19 using ehci-pci
> [ 246.905868] usb 2-3: device not accepting address 19, error -71
> [ 246.905917] hub 2-0:1.0: unable to enumerate USB device on port 3
> [ 247.228003] usb 4-3: new full-speed USB device number 3 using ohci-pci
> [ 247.405980] usb 4-3: not running at top speed; connect to a high speed hub
> [ 247.420976] usb 4-3: New USB device found, idVendor=0ea0, idProduct=2168
> [ 247.420995] usb 4-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> [ 247.421005] usb 4-3: Product: Flash Disk
> [ 247.421012] usb 4-3: Manufacturer: USB
> [ 247.424113] usb-storage 4-3:1.0: USB Mass Storage device detected
> [ 247.424387] scsi9 : usb-storage 4-3:1.0
> [ 248.435048] scsi 9:0:0:0: Direct-Access USB Flash Disk 2.00 PQ: 0 ANSI: 2
> [ 248.436015] sd 9:0:0:0: Attached scsi generic sg5 type 0
> [ 248.468040] sd 9:0:0:0: [sde] Attached SCSI removable disk
> [ 258.219722] usb 4-3: USB disconnect, device number 3
> ...
>
> Is that all communication should happen in the background without affecting the overall speed of system boot and reboot, well it is still the right question but for someone at linux-usb@ and linux-kernel at .
OK, added linux-usb to CC
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