Windows 7: BSOD - Sometimes NDIS.sys "driver_irql_not_less_or_equal"

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*                        Bugcheck Analysis                                    *
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Use !analyze -v to get detailed debugging information.

BugCheck D1, {14, 2, 0, 8bc6f2bf}

Unable to load image \SystemRoot\system32\DRIVERS\inspect.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for inspect.sys
*** ERROR: Module load completed but symbols could not be loaded for inspect.sys
*** WARNING: Unable to verify timestamp for nvmf6232.sys
*** ERROR: Module load completed but symbols could not be loaded for nvmf6232.sys
Probably caused by : inspect.sys ( inspect+1c43 )

Followup: MachineOwner
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*                        Bugcheck Analysis                                    *
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Use !analyze -v to get detailed debugging information.

BugCheck 50, {8177f4b8, 0, 91f7bfd7, 0}

Unable to load image \SystemRoot\system32\DRIVERS\nvlddmkm.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for nvlddmkm.sys
*** ERROR: Module load completed but symbols could not be loaded for nvlddmkm.sys

Could not read faulting driver name
Probably caused by : nvlddmkm.sys ( nvlddmkm+15cfd7 )

Followup: MachineOwner
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0: kd> !analyze -v
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PAGE_FAULT_IN_NONPAGED_AREA (50)
Invalid system memory was referenced.  This cannot be protected by try-except,
it must be protected by a Probe.  Typically the address is just plain bad or it
is pointing at freed memory.
Arguments:
Arg1: 8177f4b8, memory referenced.
Arg2: 00000000, value 0 = read operation, 1 = write operation.
Arg3: 91f7bfd7, If non-zero, the instruction address which referenced the bad memory
    address.
Arg4: 00000000, (reserved)

Debugging Details:
------------------


Could not read faulting driver name

READ_ADDRESS: GetPointerFromAddress: unable to read from 82d7f848
Unable to read MiSystemVaType memory at 82d5ee20
 8177f4b8 

FAULTING_IP: 
nvlddmkm+15cfd7
91f7bfd7 8b4a20          mov     ecx,dword ptr [edx+20h]

MM_INTERNAL_CODE:  0

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  WIN7_DRIVER_FAULT

BUGCHECK_STR:  0x50

PROCESS_NAME:  java.exe

CURRENT_IRQL:  0

TRAP_FRAME:  ac52b0d8 -- (.trap 0xffffffffac52b0d8)
ErrCode = 00000000
eax=875098d0 ebx=866c6314 ecx=866c6314 edx=8177f498 esi=8586f568 edi=caf012fe
eip=91f7bfd7 esp=ac52b14c ebp=ac52b168 iopl=0         nv up ei pl nz na po nc
cs=0008  ss=0010  ds=0023  es=0023  fs=0030  gs=0000             efl=00010202
nvlddmkm+0x15cfd7:
91f7bfd7 8b4a20          mov     ecx,dword ptr [edx+20h] ds:0023:8177f4b8=????????
Resetting default scope

LAST_CONTROL_TRANSFER:  from 82c55ae8 to 82ca2b3f

STACK_TEXT:  
ac52b0c0 82c55ae8 00000000 8177f4b8 00000000 nt!MmAccessFault+0x106
ac52b0c0 91f7bfd7 00000000 8177f4b8 00000000 nt!KiTrap0E+0xdc
WARNING: Stack unwind information not available. Following frames may be wrong.
ac52b168 91f84d55 8586f568 866c6314 00000000 nvlddmkm+0x15cfd7
ac52b18c 91fa61e6 c1d00001 ff010000 caf012fe nvlddmkm+0x165d55
ac52b270 91fa65f6 ac52b288 ac52b42c 8666c000 nvlddmkm+0x1871e6
ac52b29c 91f63742 ac52b42c ac52b2bc 00000000 nvlddmkm+0x1875f6
ac52b330 91ed7da1 ac52b42c 85ef5000 ac52b42c nvlddmkm+0x144742
ac52b34c 91ed9b25 ac52b42c 00003f00 857e13b8 nvlddmkm+0xb8da1
ac52b360 91e64f19 ac52b42c 857e1494 85ef5000 nvlddmkm+0xbab25
ac52b4dc 91e66ec9 ac52b8a0 85ef5000 00000000 nvlddmkm+0x45f19
ac52b7d4 91e6a0e6 85ef5000 ac52b90c ac52b8a0 nvlddmkm+0x47ec9
ac52b830 92668b59 857e13b8 8302d6ee 85ef5000 nvlddmkm+0x4b0e6
ac52b848 926cb5db 92668b06 ac52b8a0 86d06000 nvlddmkm+0x849b59
ac52b85c 928bdaf9 85ef5000 ac52b8a0 00000000 nvlddmkm+0x8ac5db
ac52b884 928bb41b ac52b8a0 3ed84826 b01145b0 dxgkrnl!DXGADAPTER::DdiCreateAllocation+0x49
ac52b8d8 928b985b ac52bca0 ac52ba88 ac52b90c dxgkrnl!DXGDEVICE::CreateDriverAllocations<_DXGK_ALLOCATIONINFO,_DXGKARG_CREATEALLOCATION>+0x23c
ac52bc78 928bbd41 ac52bca0 00000001 00000000 dxgkrnl!DXGDEVICE::CreateAllocation+0x6e1
ac52bd28 82c528fa 1df3e134 1df3e0d8 77b47094 dxgkrnl!DxgkCreateAllocation+0x2a6
ac52bd28 77b47094 1df3e134 1df3e0d8 77b47094 nt!KiFastCallEntry+0x12a
1df3e0d8 00000000 00000000 00000000 00000000 0x77b47094


STACK_COMMAND:  kb

FOLLOWUP_IP: 
nvlddmkm+15cfd7
91f7bfd7 8b4a20          mov     ecx,dword ptr [edx+20h]

SYMBOL_STACK_INDEX:  2

SYMBOL_NAME:  nvlddmkm+15cfd7

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: nvlddmkm

IMAGE_NAME:  nvlddmkm.sys

DEBUG_FLR_IMAGE_TIMESTAMP:  506b2f5b

FAILURE_BUCKET_ID:  0x50_nvlddmkm+15cfd7

BUCKET_ID:  0x50_nvlddmkm+15cfd7

Followup: MachineOwner
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0: kd> lmvm nvlddmkm
start    end        module name
91e1f000 92893000   nvlddmkm T (no symbols)           
    Loaded symbol image file: nvlddmkm.sys
    Image path: \SystemRoot\system32\DRIVERS\nvlddmkm.sys
    Image name: nvlddmkm.sys
    Timestamp:        Tue Oct 02 23:45:55 2012 (506B2F5B)
    CheckSum:         00A5C59B
    ImageSize:        00A74000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4