!usbkd.usbportmddevext

  • 项目

如果因错误检查 0xFE 而生成的崩溃转储中存在 usbport!_DEVICE_EXTENSION 结构，!usbkd.usbportmddevext 命令将显示该结构。

!usbkd.usbportmddevext

DLL

Usbkd.dll

注解

只有在调试因 Bug Check 0xFE: BUGCODE_USB_DRIVER 而生成的崩溃转储文件时才能使用此命令。

示例

下面是 !usbportmddevext 的输出示例。

1: kd> !analyze -v
*** ...
BUGCODE_USB_DRIVER (fe) 
...
1: kd> !usbkd.usbportmddevext
USBPORT.SYS DEVICE_EXTENSION DATA: 
Hcd FDO Extension:
Sig:4f444648 HFDO
CurrentPnpFunc: 0x00000008
PnpFuncHistoryIdx: 0x0000000d
CurrentPowerFunc: 0x00000000
PowerFuncHistoryIdx: 0x00000000
PnpLogIdx: 0x00000002
IoRequestCount: 0x00000007
IoRequestAsyncCallbackCount: 0xffffffff
IoRequestAllow: 0x00000000
Pnp Func History (idx 13)
...
[02] pnp 13 (0d) IRP_MN_FILTER_RESOURCE_REQUIREMENTS
[...
Power Func History (idx 0)
[01] pnp 255 (ff) ??? (x0) PowerDeviceUnspecified
...
    **Power and Wake -----------------------------------------------
    selective suspend:on (1)
    PowerFlags (00000080):
*---FDO---*
PMDebug: 0x00000000
MinAllocedBw: 0x00000000
MaxAllocedBw: 0x00000000
## ...

## XDPC HISTORY_UsbHcIntDpc

State History (idx 2)
EVENT, STATE, NEXT 
Log[3] @ 000000d9e7c615cc  
Ev_Xdpc_Worker       XDPC_DpcQueued          XDPC_Running            
## ...        

## XDPC HISTORY_UsbDoneDpc

State History (idx 0)
EVENT, STATE, NEXT 
Log[1] @ 000000d9e7c61774  
Ev_Xdpc_Worker       XDPC_DpcQueued          XDPC_Running            
## ...          

## XDPC HISTORY_UsbMapDpc

State History (idx 3)
EVENT, STATE, NEXT 
Log[4] @ 000000d9e7c6196c  
## ...         

## XDPC HISTORY_UsbIocDpc

State History (idx 0)
EVENT, STATE, NEXT 
Log[1] @ 000000d9e7c61b04  
Ev_Xdpc_Worker       XDPC_DpcQueued          XDPC_Running            
...

另请参阅

USB 2.0 调试器扩展

通用串行总线 (USB) 驱动程序