0: kd> !devstack
Device object not found
0: kd> !devstack ffff9385a7992d10
!DevObj !DrvObj !DevExt ObjectName
ffff9385a79a1960 \Driver\ksthunk ffff9385a79a1ab0 InfoMask field not found for _OBJECT_HEADER at ffff9385a79a1930
ffff9385a7c11c80 Unable to load image nvhda64v.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for nvhda64v.sys
\Driver\NVHDA ffff9385a7c11dd0 InfoMask field not found for _OBJECT_HEADER at ffff9385a7c11c50
> ffff9385a7992d10 \Driver\HDAudBus ffff9385a7c10310 Cannot read info offset from nt!ObpInfoMaskToOffset
!DevNode ffff9385a7c34c70 :
DeviceInst is "HDAUDIO\FUNC_01&VEN_10DE&DEV_0040&SUBSYS_14583603&REV_1001\5&368ce9ca&0&0001"
ServiceName is "NVHDA"
0: kd> lmvmnvhda64v
Browse full module list
start end module name
fffff803`5f710000 fffff803`5f747000 nvhda64v T (no symbols)
Loaded symbol image file: nvhda64v.sys
Image path: nvhda64v.sys
Image name: nvhda64v.sys
Browse all global symbols functions data
Timestamp: Fri Dec 15 11:17:43 2017 (5A338527)
CheckSum: 00044757
ImageSize: 00037000
Translations: 0000.04b0 0000.04e4 0409.04b0 0409.04e4
Information from resource tables: