Bug 921483

Use ehci bus for the usb stick, the stick work well;
 
the qemu-kvm command as following:

/usr/libexec/qemu-kvm \
-drive file=/home/usb-test/win7-32-virtio.qcow2,if=none,cache=unsafe,media=disk,format=qcow2,id=drive-ide0-0-1 \
-device ide-drive,id=ide0-0-1,drive=drive-ide0-0-1 \
-netdev tap,id=hostnet0 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:7f:f9:F6,bus=pci.0 \
-monitor stdio \
-chardev file,id=serial_id_serial1,path=/tmp/serial-serial1-20130311-201534-UGwldR4R \
-device isa-serial,chardev=serial_id_serial1 \
-chardev file,id=seabioslog_id_20130311-201534-UGwldR4R,path=/tmp/seabios-20130311-201534-UGwldR4R \
-device isa-debugcon,chardev=seabioslog_id_20130311-201534-UGwldR4R,iobase=0x402 \
-boot menu=on \
-readconfig /etc/qemu/ich9-ehci-uhci.cfg \
-device usb-host,bus=ehci.0,vendorid=0x0951,productid=0x168c \
-spice port=5900,addr=0.0.0.0,disable-ticketing \
-drive file=/home/usb-test/usb2.qcow2,if=none,id=drive-usb-0-0,media=disk,format=qcow2,cache=writethrough,aio=native \
-cpu 'SandyBridge',hv_relaxed \
-M pc \
-smp 2,cores=2,threads=1,sockets=1 -m 2048 \
-cdrom /usr/share/virtio-win/virtio-win-1.6.3.iso \
-global PIIX4_PM.disable_s3=0 \ 
-global PIIX4_PM.disable_s4=0 \
-fdb /usr/share/virtio-win/virtio-win-1.6.3_x86.vfd \
-enable-kvm

Can I get 'lsusb -v' output for the stick in question?

(In reply to comment #3)
> Can I get 'lsusb -v' output for the stick in question?

Bus 001 Device 003: ID 0951:168c Kingston Technology 
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x0951 Kingston Technology
  idProduct          0x168c 
  bcdDevice            1.00
  iManufacturer           1 
  iProduct                2 
  iSerial                 3 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           32
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              400mA
    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     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0

The stick simply doesn't support USB 1.1.
USB 2.0 sticks which support 1.1 too have a section like this:

Device Qualifier (for other device speed):
  [ more stuff here ]

So the stick must be passed through using ehci (or xhci).