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Bug 980738 - QEMU core dump when passthrough USB Webcam to guest with xHCI controller
Summary: QEMU core dump when passthrough USB Webcam to guest with xHCI controller
Keywords:
Status: CLOSED DUPLICATE of bug 981183
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm
Version: 7.0
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: rc
: ---
Assignee: Gerd Hoffmann
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-07-03 07:18 UTC by Sibiao Luo
Modified: 2013-07-24 07:29 UTC (History)
12 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-07-24 07:29:53 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Sibiao Luo 2013-07-03 07:18:23 UTC 
Description of problem:
insert a USB Webcam to host var physically XHCI controller, and passthrough it to guest with xhci controller, after a while the QEMU core dump.

Version-Release number of selected component (if applicable):
host info:
3.10.0-0.rc7.64.el7.x86_64
qemu-kvm-1.5.1-1.el7.x86_64
guest info:
3.10.0-0.rc7.64.el7.x86_64

How reproducible:
100%

Steps to Reproduce:
1.insert a USB Webcam to host var physically XHCI controller.
2.get the bus and addr of USB Webcam info.
# lsusb
Bus 003 Device 002: ID 0ac8:3450 Z-Star Microelectronics Corp.
3.pathrough USB Webcam to guest var xhci controller.
# /usr/libexec/qemu-kvm -M q35 -cpu SandyBridge -enable-kvm -m 4096 -smp 4,sockets=2,cores=2,threads=1 -no-kvm-pit-reinjection -name sluo -uuid 355a2475-4e03-4cdd-bf7b-5d6a59edaa61 -rtc base=localtime,clock=host,driftfix=slew -device pci-bridge,bus=pcie.0,id=bridge1,chassis_nr=1,addr=0x3 -device virtio-serial-pci,id=virtio-serial0,max_ports=16,vectors=0,bus=bridge1,addr=0x4 -chardev socket,id=channel1,path=/tmp/helloworld1,server,nowait -device virtserialport,chardev=channel1,name=com.redhat.rhevm.vdsm,bus=virtio-serial0.0,id=port1 -chardev socket,id=channel2,path=/tmp/helloworld2,server,nowait -device virtserialport,chardev=channel2,name=com.redhat.rhevm.vdsm,bus=virtio-serial0.0,id=port2 -drive file=/home/RHEL-7.0-20130628.0-Server-x86_64.qcow3,if=none,id=drive-system-disk,format=qcow2,cache=none,aio=native,werror=stop,rerror=stop,serial="QEMU-DISK1" -device virtio-scsi-pci,num_queues=4,id=scsi0,bus=bridge1,addr=0x5 -device scsi-hd,bus=scsi0.0,drive=drive-system-disk,id=system-disk,bootindex=1 -device virtio-balloon-pci,id=ballooning,bus=bridge1,addr=0x6 -global PIIX4_PM.disable_s3=0 -global PIIX4_PM.disable_s4=0 -netdev tap,id=hostnet0,vhost=on,queues=4,script=/etc/qemu-ifup -device virtio-net-pci,mq=on,vectors=17,netdev=hostnet0,id=virtio-net-pci0,mac=08:2e:5f:0a:0d:b1,bus=bridge1,addr=0x7,bootindex=2 -k en-us -boot menu=on -qmp tcp:0:4444,server,nowait -serial unix:/tmp/ttyS0,server,nowait -vnc :1 -spice port=5931,disable-ticketing -monitor stdio -device nec-usb-xhci,id=xhci,bus=bridge1,addr=0x8 -device usb-host,hostbus=3,hostaddr=2,id=Z-Star,bus=xhci.0

Actual results:
after step 2, the qemu core dump, i will paste the bt log later.
(qemu) qemu-kvm: hw/usb/core.c:413: usb_handle_packet: Assertion `p->ep->type != 3 || (dev->flags & (1 << USB_DEV_FLAG_IS_HOST))' failed.
Aborted (core dumped)

Expected results:
it should no any core dump, the USB Webcam should work well in guest.

Additional info:
Comment 1 Sibiao Luo 2013-07-03 07:19:53 UTC 
(gdb) bt
#0  0x00007fa69571ea19 in raise () from /lib64/libc.so.6
#1  0x00007fa695720128 in abort () from /lib64/libc.so.6
#2  0x00007fa695717986 in __assert_fail_base () from /lib64/libc.so.6
#3  0x00007fa695717a32 in __assert_fail () from /lib64/libc.so.6
#4  0x00007fa699f3d2d7 in usb_handle_packet (dev=<optimized out>, p=p@entry=0x7fa680054ba0) at hw/usb/core.c:412
#5  0x00007fa699f5083b in xhci_submit (epctx=0x7fa680054b70, xfer=0x7fa680054b98, xhci=0x7fa67dd38010)
    at hw/usb/hcd-xhci.c:1861
#6  xhci_fire_transfer (epctx=0x7fa680054b70, xfer=0x7fa680054b98, xhci=0x7fa67dd38010) at hw/usb/hcd-xhci.c:1873
#7  xhci_kick_ep (xhci=0x7fa67dd38010, slotid=1, epid=3, streamid=0) at hw/usb/hcd-xhci.c:1995
#8  0x00007fa69a0307b2 in access_with_adjusted_size (addr=addr@entry=4, value=value@entry=0x7fa68c8e7a40, 
    size=size@entry=4, access_size_min=<optimized out>, access_size_max=<optimized out>, access=access@entry=
    0x7fa69a030d70 <memory_region_write_accessor>, opaque=opaque@entry=0x7fa67dd38a30)
    at /usr/src/debug/qemu-1.5.1/memory.c:364
#9  0x00007fa69a03574b in memory_region_dispatch_write (size=4, data=3, addr=4, mr=0x7fa67dd38a30)
    at /usr/src/debug/qemu-1.5.1/memory.c:916
#10 io_mem_write (mr=0x7fa67dd38a30, addr=4, val=<optimized out>, size=4) at /usr/src/debug/qemu-1.5.1/memory.c:1597
#11 0x00007fa69a0307b2 in access_with_adjusted_size (addr=addr@entry=4, value=value@entry=0x7fa68c8e7af0, 
    size=size@entry=4, access_size_min=<optimized out>, access_size_max=<optimized out>, access=access@entry=
    0x7fa69a030d70 <memory_region_write_accessor>, opaque=opaque@entry=0x7fa678007320)
    at /usr/src/debug/qemu-1.5.1/memory.c:364
#12 0x00007fa69a03574b in memory_region_dispatch_write (size=4, data=3, addr=4, mr=0x7fa678007320)
    at /usr/src/debug/qemu-1.5.1/memory.c:916
#13 io_mem_write (mr=0x7fa678007320, addr=4, val=<optimized out>, size=size@entry=4)
    at /usr/src/debug/qemu-1.5.1/memory.c:1597
#14 0x00007fa699fe377d in address_space_rw (as=as@entry=0x7fa69acfdf80 <address_space_memory>, addr=4272168964, 
    buf=buf@entry=0x7fa699cbf028 <Address 0x7fa699cbf028 out of bounds>, len=4, is_write=true)
    at /usr/src/debug/qemu-1.5.1/exec.c:1916
#15 0x00007fa699fe3875 in cpu_physical_memory_rw (addr=<optimized out>, 
    buf=buf@entry=0x7fa699cbf028 <Address 0x7fa699cbf028 out of bounds>, len=<optimized out>, is_write=<optimized out>)
    at /usr/src/debug/qemu-1.5.1/exec.c:1998
#16 0x00007fa69a02f245 in kvm_cpu_exec (env=env@entry=0x7fa69b8f0070) at /usr/src/debug/qemu-1.5.1/kvm-all.c:1643
#17 0x00007fa699fda375 in qemu_kvm_cpu_thread_fn (arg=0x7fa69b8f0070) at /usr/src/debug/qemu-1.5.1/cpus.c:759
#18 0x00007fa698057c53 in start_thread () from /lib64/libpthread.so.0
#19 0x00007fa6957de13d in clone () from /lib64/libc.so.6
(gdb) bt full
#0  0x00007fa69571ea19 in raise () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007fa695720128 in abort () from /lib64/libc.so.6
No symbol table info available.
#2  0x00007fa695717986 in __assert_fail_base () from /lib64/libc.so.6
No symbol table info available.
#3  0x00007fa695717a32 in __assert_fail () from /lib64/libc.so.6
No symbol table info available.
#4  0x00007fa699f3d2d7 in usb_handle_packet (dev=<optimized out>, p=p@entry=0x7fa680054ba0) at hw/usb/core.c:412
        __PRETTY_FUNCTION__ = "usb_handle_packet"
#5  0x00007fa699f5083b in xhci_submit (epctx=0x7fa680054b70, xfer=0x7fa680054b98, xhci=0x7fa67dd38010)
    at hw/usb/hcd-xhci.c:1861
        mfindex = <optimized out>
#6  xhci_fire_transfer (epctx=0x7fa680054b70, xfer=0x7fa680054b98, xhci=0x7fa67dd38010) at hw/usb/hcd-xhci.c:1873
No locals.
#7  xhci_kick_ep (xhci=0x7fa67dd38010, slotid=1, epid=3, streamid=0) at hw/usb/hcd-xhci.c:1995
        xfer = 0x7fa680054b98
        stctx = <optimized out>
        epctx = 0x7fa680054b70
        ring = 0x7fa680054b80
        ep = 0x0
        mfindex = <optimized out>
        i = <optimized out>
        __PRETTY_FUNCTION__ = "xhci_kick_ep"
#8  0x00007fa69a0307b2 in access_with_adjusted_size (addr=addr@entry=4, value=value@entry=0x7fa68c8e7a40, 
    size=size@entry=4, access_size_min=<optimized out>, access_size_max=<optimized out>, access=access@entry=
    0x7fa69a030d70 <memory_region_write_accessor>, opaque=opaque@entry=0x7fa67dd38a30)
    at /usr/src/debug/qemu-1.5.1/memory.c:364
        access_mask = 4294967295
        access_size = 4
        i = <optimized out>
#9  0x00007fa69a03574b in memory_region_dispatch_write (size=4, data=3, addr=4, mr=0x7fa67dd38a30)
    at /usr/src/debug/qemu-1.5.1/memory.c:916
No locals.
#10 io_mem_write (mr=0x7fa67dd38a30, addr=4, val=<optimized out>, size=4) at /usr/src/debug/qemu-1.5.1/memory.c:1597
No locals.
#11 0x00007fa69a0307b2 in access_with_adjusted_size (addr=addr@entry=4, value=value@entry=0x7fa68c8e7af0, 
    size=size@entry=4, access_size_min=<optimized out>, access_size_max=<optimized out>, access=access@entry=
    0x7fa69a030d70 <memory_region_write_accessor>, opaque=opaque@entry=0x7fa678007320)
    at /usr/src/debug/qemu-1.5.1/memory.c:364
        access_mask = 4294967295
        access_size = 4
        i = <optimized out>
#12 0x00007fa69a03574b in memory_region_dispatch_write (size=4, data=3, addr=4, mr=0x7fa678007320)
    at /usr/src/debug/qemu-1.5.1/memory.c:916
No locals.
#13 io_mem_write (mr=0x7fa678007320, addr=4, val=<optimized out>, size=size@entry=4)
    at /usr/src/debug/qemu-1.5.1/memory.c:1597
No locals.
#14 0x00007fa699fe377d in address_space_rw (as=as@entry=0x7fa69acfdf80 <address_space_memory>, addr=4272168964, 
    buf=buf@entry=0x7fa699cbf028 <Address 0x7fa699cbf028 out of bounds>, len=4, is_write=true)
    at /usr/src/debug/qemu-1.5.1/exec.c:1916
        addr1 = <optimized out>
        d = 0x7fa69b6fc810
        l = 4
        ptr = <optimized out>
        val = <optimized out>
        page = 4272168960
        section = <optimized out>
#15 0x00007fa699fe3875 in cpu_physical_memory_rw (addr=<optimized out>, 
    buf=buf@entry=0x7fa699cbf028 <Address 0x7fa699cbf028 out of bounds>, len=<optimized out>, is_write=<optimized out>)
    at /usr/src/debug/qemu-1.5.1/exec.c:1998
No locals.
#16 0x00007fa69a02f245 in kvm_cpu_exec (env=env@entry=0x7fa69b8f0070) at /usr/src/debug/qemu-1.5.1/kvm-all.c:1643
        cpu = 0x7fa69b8eff60
        __func__ = "kvm_cpu_exec"
        run = 0x7fa699cbf000
        ret = <optimized out>
        run_ret = 0
#17 0x00007fa699fda375 in qemu_kvm_cpu_thread_fn (arg=0x7fa69b8f0070) at /usr/src/debug/qemu-1.5.1/cpus.c:759
        cpu = 0x7fa69b8eff60
        __func__ = "qemu_kvm_cpu_thread_fn"
        r = <optimized out>
#18 0x00007fa698057c53 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#19 0x00007fa6957de13d in clone () from /lib64/libc.so.6
No symbol table info available.
(gdb)
Comment 2 Sibiao Luo 2013-07-03 07:23:19 UTC 
# lsusb -vv
Bus 003 Device 002: ID 0ac8:3450 Z-Star Microelectronics Corp. 
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2 ?
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  idVendor           0x0ac8 Z-Star Microelectronics Corp.
  idProduct          0x3450 
  bcdDevice            1.a2
  iManufacturer           1 Vimicro Corp.
  iProduct                2 Altair USB2.0 Camera
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength          481
    bNumInterfaces          2
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              320mA
    Interface Association:
      bLength                 8
      bDescriptorType        11
      bFirstInterface         0
      bInterfaceCount         2
      bFunctionClass         14 Video
      bFunctionSubClass       3 Video Interface Collection
      bFunctionProtocol       0 
      iFunction               2 Altair USB2.0 Camera
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      1 Video Control
      bInterfaceProtocol      0 
      iInterface              2 Altair USB2.0 Camera
      VideoControl Interface Descriptor:
        bLength                13
        bDescriptorType        36
        bDescriptorSubtype      1 (HEADER)
        bcdUVC               1.00
        wTotalLength           79
        dwClockFrequency       30.000000MHz
        bInCollection           1
        baInterfaceNr( 0)       1
      VideoControl Interface Descriptor:
        bLength                18
        bDescriptorType        36
        bDescriptorSubtype      2 (INPUT_TERMINAL)
        bTerminalID             1
        wTerminalType      0x0201 Camera Sensor
        bAssocTerminal          0
        iTerminal               0 
        wObjectiveFocalLengthMin      0
        wObjectiveFocalLengthMax      0
        wOcularFocalLength            0
        bControlSize                  3
        bmControls           0x0002002a
          Auto-Exposure Mode
          Exposure Time (Absolute)
          Focus (Absolute)
          Focus, Auto
      VideoControl Interface Descriptor:
        bLength                11
        bDescriptorType        36
        bDescriptorSubtype      5 (PROCESSING_UNIT)
      Warning: Descriptor too short
        bUnitID                 2
        bSourceID               1
        wMaxMultiplier          0
        bControlSize            2
        bmControls     0x0000177b
          Brightness
          Contrast
          Saturation
          Sharpness
          Gamma
          White Balance Temperature
          Backlight Compensation
          Gain
          Power Line Frequency
          White Balance Temperature, Auto
        iProcessing             0 
        bmVideoStandards     0x 9
          None
          SECAM - 625/50
      VideoControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      3 (OUTPUT_TERMINAL)
        bTerminalID             3
        wTerminalType      0x0101 USB Streaming
        bAssocTerminal          0
        bSourceID               2
        iTerminal               0 
      VideoControl Interface Descriptor:
        bLength                28
        bDescriptorType        36
        bDescriptorSubtype      6 (EXTENSION_UNIT)
        bUnitID                 4
        guidExtensionCode         {5dc717a9-1941-da11-ae0e-000d56ac7b4c}
        bNumControl             8
        bNrPins                 1
        baSourceID( 0)          1
        bControlSize            3
        bmControls( 0)       0x59
        bmControls( 1)       0x80
        bmControls( 2)       0x80
        iExtension              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x000a  1x 10 bytes
        bInterval               5
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      VideoStreaming Interface Descriptor:
        bLength                            14
        bDescriptorType                    36
        bDescriptorSubtype                  1 (INPUT_HEADER)
        bNumFormats                         1
        wTotalLength                      243
        bEndPointAddress                  130
        bmInfo                              0
        bTerminalLink                       3
        bStillCaptureMethod                 2
        bTriggerSupport                     1
        bTriggerUsage                       1
        bControlSize                        1
        bmaControls( 0)                    27
      VideoStreaming Interface Descriptor:
        bLength                            27
        bDescriptorType                    36
        bDescriptorSubtype                  4 (FORMAT_UNCOMPRESSED)
        bFormatIndex                        1
        bNumFrameDescriptors                5
        guidFormat                            {59555932-0000-1000-8000-00aa00389b71}
        bBitsPerPixel                      16
        bDefaultFrameIndex                  1
        bAspectRatioX                       0
        bAspectRatioY                       0
        bmInterlaceFlags                 0x00
          Interlaced stream or variable: No
          Fields per frame: 2 fields
          Field 1 first: No
          Field pattern: Field 1 only
          bCopyProtect                      0
      VideoStreaming Interface Descriptor:
        bLength                            34
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         1
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            640
        wHeight                           480
        dwMinBitRate                   768000
        dwMaxBitRate                196608000
        dwMaxVideoFrameBufferSize      614400
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  2
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            666667
      VideoStreaming Interface Descriptor:
        bLength                            34
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         2
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            352
        wHeight                           288
        dwMinBitRate                   768000
        dwMaxBitRate                196608000
        dwMaxVideoFrameBufferSize      202752
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  2
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            666667
      VideoStreaming Interface Descriptor:
        bLength                            34
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         3
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            320
        wHeight                           240
        dwMinBitRate                   768000
        dwMaxBitRate                196608000
        dwMaxVideoFrameBufferSize      153600
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  2
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            666667
      VideoStreaming Interface Descriptor:
        bLength                            34
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         4
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            176
        wHeight                           144
        dwMinBitRate                   768000
        dwMaxBitRate                196608000
        dwMaxVideoFrameBufferSize       50688
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  2
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            666667
      VideoStreaming Interface Descriptor:
        bLength                            34
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         5
        bmCapabilities                   0x00
          Still image unsupported
        wWidth                            160
        wHeight                           120
        dwMinBitRate                   768000
        dwMaxBitRate                196608000
        dwMaxVideoFrameBufferSize       38400
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  2
        dwFrameInterval( 0)            333333
        dwFrameInterval( 1)            666667
      VideoStreaming Interface Descriptor:
        bLength                            26
        bDescriptorType                    36
        bDescriptorSubtype                  3 (STILL_IMAGE_FRAME)
        bEndpointAddress                    0
        bNumImageSizePatterns               5
        wWidth( 0)                        640
        wHeight( 0)                       480
        wWidth( 1)                        352
        wHeight( 1)                       288
        wWidth( 2)                        320
        wHeight( 2)                       240
        wWidth( 3)                        176
        wHeight( 3)                       144
        wWidth( 4)                        160
        wHeight( 4)                       120
        bNumCompressionPatterns             5
      VideoStreaming Interface Descriptor:
        bLength                             6
        bDescriptorType                    36
        bDescriptorSubtype                 13 (COLORFORMAT)
        bColorPrimaries                     0 (Unspecified)
        bTransferCharacteristics            0 (Unspecified)
        bMatrixCoefficients                 0 (Unspecified)
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       1
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0080  1x 128 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       2
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       3
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       4
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0b00  2x 768 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       5
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0c00  2x 1024 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       6
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x1380  3x 896 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       7
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x1400  3x 1024 bytes
        bInterval               1
Device Qualifier (for other device speed):
  bLength                10
  bDescriptorType         6
  bcdUSB               2.00
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2 ?
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  bNumConfigurations      1
Device Status:     0x0000
  (Bus Powered)
Comment 3 Sibiao Luo 2013-07-05 07:49:53 UTC 
hit the same issue with passthrough the usb-kbd to guest var xhci controller.
# lsusb | grep Keyboard
Bus 003 Device 004: ID 03f0:0024 Hewlett-Packard KU-0316 Keyboard

# /usr/libexec/qemu-kvm -M q35 -cpu SandyBridge -enable-kvm -m 4096 -smp 4,sockets=2,cores=2,threads=1 -no-kvm-pit-reinjection... -device nec-usb-xhci,id=xhci,bus=bridge1,addr=0x8 -device usb-host,hostbus=3,hostaddr=4,id=hostdev,bus=xhci.0
(qemu) info usqemu-kvm: hw/usb/core.c:413: usb_handle_packet: Assertion `p->ep->type != 3 || (dev->flags & (1 << USB_DEV_FLAG_IS_HOST))' failed.
Aborted (core dumped)

(gdb) bt
#0  0x00007f2bf9864a19 in raise () from /lib64/libc.so.6
#1  0x00007f2bf9866128 in abort () from /lib64/libc.so.6
#2  0x00007f2bf985d986 in __assert_fail_base () from /lib64/libc.so.6
#3  0x00007f2bf985da32 in __assert_fail () from /lib64/libc.so.6
#4  0x00007f2bfe07ad37 in usb_handle_packet (dev=<optimized out>, p=p@entry=0x7f2be40051b0) at hw/usb/core.c:412
#5  0x00007f2bfe08e29b in xhci_submit (epctx=0x7f2be4005180, xfer=0x7f2be40051a8, xhci=0x7f2be1d38010)
    at hw/usb/hcd-xhci.c:1861
#6  xhci_fire_transfer (epctx=0x7f2be4005180, xfer=0x7f2be40051a8, xhci=0x7f2be1d38010) at hw/usb/hcd-xhci.c:1873
#7  xhci_kick_ep (xhci=0x7f2be1d38010, slotid=1, epid=3, streamid=0) at hw/usb/hcd-xhci.c:1995
#8  0x00007f2bfe16dc62 in access_with_adjusted_size (addr=addr@entry=4, value=value@entry=0x7f2bf122ea40, 
    size=size@entry=4, access_size_min=<optimized out>, access_size_max=<optimized out>, access=access@entry=
    0x7f2bfe16e220 <memory_region_write_accessor>, opaque=opaque@entry=0x7f2be1d38a30)
    at /usr/src/debug/qemu-1.5.1/memory.c:364
#9  0x00007f2bfe172bfb in memory_region_dispatch_write (size=4, data=3, addr=4, mr=0x7f2be1d38a30)
    at /usr/src/debug/qemu-1.5.1/memory.c:916
#10 io_mem_write (mr=0x7f2be1d38a30, addr=4, val=<optimized out>, size=4) at /usr/src/debug/qemu-1.5.1/memory.c:1597
#11 0x00007f2bfe16dc62 in access_with_adjusted_size (addr=addr@entry=4, value=value@entry=0x7f2bf122eaf0, 
    size=size@entry=4, access_size_min=<optimized out>, access_size_max=<optimized out>, access=access@entry=
    0x7f2bfe16e220 <memory_region_write_accessor>, opaque=opaque@entry=0x7f2bdc04f6e0)
    at /usr/src/debug/qemu-1.5.1/memory.c:364
#12 0x00007f2bfe172bfb in memory_region_dispatch_write (size=4, data=3, addr=4, mr=0x7f2bdc04f6e0)
    at /usr/src/debug/qemu-1.5.1/memory.c:916
#13 io_mem_write (mr=0x7f2bdc04f6e0, addr=4, val=<optimized out>, size=size@entry=4)
    at /usr/src/debug/qemu-1.5.1/memory.c:1597
#14 0x00007f2bfe1211dd in address_space_rw (as=as@entry=0x7f2bfee35fc0 <address_space_memory>, addr=4272168964, 
    buf=buf@entry=0x7f2bfdf2d028 <Address 0x7f2bfdf2d028 out of bounds>, len=4, is_write=true)
---Type <return> to continue, or q <return> to quit---
    at /usr/src/debug/qemu-1.5.1/exec.c:1916
#15 0x00007f2bfe1212d5 in cpu_physical_memory_rw (addr=<optimized out>, 
    buf=buf@entry=0x7f2bfdf2d028 <Address 0x7f2bfdf2d028 out of bounds>, len=<optimized out>, is_write=<optimized out>)
    at /usr/src/debug/qemu-1.5.1/exec.c:1998
#16 0x00007f2bfe16c6f5 in kvm_cpu_exec (env=env@entry=0x7f2bff093520) at /usr/src/debug/qemu-1.5.1/kvm-all.c:1643
#17 0x00007f2bfe117dd5 in qemu_kvm_cpu_thread_fn (arg=0x7f2bff093520) at /usr/src/debug/qemu-1.5.1/cpus.c:759
#18 0x00007f2bfc19dc53 in start_thread () from /lib64/libpthread.so.0
#19 0x00007f2bf992413d in clone () from /lib64/libc.so.6
(gdb)
Comment 4 Gerd Hoffmann 2013-07-24 07:29:53 UTC 

*** This bug has been marked as a duplicate of bug 981183 ***
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