The !wdfkd.wdfobject extension displays information about a specified framework object.
KMDF 1, UMDF 2
For more information, see Kernel-Mode Driver Framework Debugging.
If the Kernel-Mode Driver Framework (KMDF) verifier is enabled for a driver and the public handle type was marked for tracking, the display from the !wdfkd.wdfobject extension includes the tag tracker (that is, the tracking object), as in the following example.
kd> !wdfobject 0x83584e38 The type for object 0x83584e38 is FxDevice State: FxObjectStateCreated (0x1) !wdfhandle 0x7ca7b1c0 dt FxDevice 0x83584e38 context: dt 0x83584ff8 ROOT_CONTEXT (size is 0x1 bytes) <no associated attribute callbacks> Object debug extension 83584e20 !wdftagtracker 0x83722d80 Verifier lock 0x831cefa8 State history:  FxObjectStateCreated (0x1)