Comment 38 for bug 61235

Chiming in on this...

Feisty on kernel 2.6.20-16-generic #2

System is a Dell Inspiron 600m

lspci -v says the USB interface is thus:

USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller

Device is a low-profile laptop HD USB adapter.

lsusb -v says:

Bus 002 Device 005: ID 04b4:6830 Cypress Semiconductor Corp. USB-2.0 IDE Adapter
Device Descriptor:
  bLength 18
  bDescriptorType 1
  bcdUSB 2.00
  bDeviceClass 0 (Defined at Interface level)
  bDeviceSubClass 0
  bDeviceProtocol 0
  bMaxPacketSize0 64
  idVendor 0x04b4 Cypress Semiconductor Corp.
  idProduct 0x6830 USB-2.0 IDE Adapter
  bcdDevice 0.01
  iManufacturer 56 Cypress Semiconductor
  iProduct 78 USB2.0 Storage Device
  iSerial 100 DEF106F1A17F
  bNumConfigurations 1
  Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 32
    bNumInterfaces 1
    bConfigurationValue 1
    iConfiguration 0
    bmAttributes 0xc0
      Self Powered
    MaxPower 0mA
    Interface Descriptor:
      bLength 9
      bDescriptorType 4
      bInterfaceNumber 0
      bAlternateSetting 0
      bNumEndpoints 2
      bInterfaceClass 8 Mass Storage
      bInterfaceSubClass 6 SCSI
      bInterfaceProtocol 80 Bulk (Zip)
      iInterface 0
      Endpoint Descriptor:
        bLength 7
        bDescriptorType 5
        bEndpointAddress 0x88 EP 8 IN
        bmAttributes 2
          Transfer Type Bulk
          Synch Type None
          Usage Type Data
        wMaxPacketSize 0x0040 1x 64 bytes
        bInterval 0
Device Qualifier (for other device speed):
  bLength 10
  bDescriptorType 6
  bcdUSB 2.00
  bDeviceClass 0 (Defined at Interface level)
  bDeviceSubClass 0
  bDeviceProtocol 0
  bMaxPacketSize0 64
  bNumConfigurations 1
Device Status: 0x0001
  Self Powered

Plugging it in gives me:

[ 124.064000] usb 4-1.1: new high speed USB device using ehci_hcd and address 4
[ 124.156000] usb 4-1.1: configuration #1 chosen from 1 choice
[ 124.336000] usbcore: registered new interface driver libusual
[ 124.348000] Initializing USB Mass Storage driver...
[ 124.348000] scsi2 : SCSI emulation for USB Mass Storage devices
[ 124.348000] usbcore: registered new interface driver usb-storage
[ 124.348000] USB Mass Storage support registered.
[ 124.348000] usb-storage: device found at 4
[ 124.348000] usb-storage: waiting for device to settle before scanning
[ 129.348000] usb-storage: device scan complete
[ 134.920000] usb 4-1.1: reset high speed USB device using ehci_hcd and address 4
[ 145.084000] usb 4-1.1: reset high speed USB device using ehci_hcd and address 4
[ 150.248000] usb 4-1.1: reset high speed USB device using ehci_hcd and address 4
[ 160.412000] usb 4-1.1: reset high speed USB device using ehci_hcd and address 4
[ 160.504000] scsi 2:0:0:0: scsi: Device offlined - not ready after error recovery

Removing ehci_hcd is an effective workaround for me.