BSOD Address regions for 'aswSnx' and 'cdrom.sys' overlap

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Windows 7 Kernel Version 7601 (Service Pack 1) MP (2 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7601.18247.amd64fre.win7sp1_gdr.130828-1532
Machine Name:
Kernel base = 0xfffff80004264000 PsLoadedModuleList = 0xfffff800044a76d0
Debug session time: Fri Jan 10 04:56:14.532 2014 (UTC - 5:00)
System Uptime: 0 days 0:00:09.890


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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: fffffa801ddb62c0, memory referenced.
Arg2: 0000000000000000, value 0 = read operation, 1 = write operation.
Arg3: fffff800042e2433, If non-zero, the instruction address which referenced the bad memory
address.
Arg4: 0000000000000002, (reserved)

Debugging Details:

Could not read faulting driver name
TRIAGER: Could not open triage file : e:\dump_analysis\program\triage\modclass.ini, error 2

OVERLAPPED_MODULE: Address regions for ‘aswSnx’ and ‘cdrom.sys’ overlap

READ_ADDRESS: GetPointerFromAddress: unable to read from fffff80004511100
GetUlongFromAddress: unable to read from fffff800045111c0
fffffa801ddb62c0 Nonpaged pool

FAULTING_IP:
nt!PoIdle+253
fffff800`042e2433 418b442450 mov eax,dword ptr [r12+50h]

MM_INTERNAL_CODE: 2

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: WIN7_DRIVER_FAULT

BUGCHECK_STR: 0x50

PROCESS_NAME: System

CURRENT_IRQL: 0

TRAP_FRAME: fffff80000b9cb10 – (.trap 0xfffff80000b9cb10)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=0000000000000000 rbx=0000000000000000 rcx=0000000000000000
rdx=fffff80004264000 rsi=0000000000000000 rdi=0000000000000000
rip=fffff800042e2433 rsp=fffff80000b9cca0 rbp=0000000000000000
r8=0000000000400000 r9=0000000000c69d75 r10=000000000006c544
r11=fffffa800742cac6 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0 nv up di pl zr na po nc
nt!PoIdle+0x253:
fffff800042e2433 418b442450 mov eax,dword ptr [r12+50h] ds:0000000000000050=???
Resetting default scope

LAST_CONTROL_TRANSFER: from fffff800043565e4 to fffff800042d9bc0

STACK_TEXT:
fffff80000b9c9a8 fffff800043565e4 : 0000000000000050 fffffa801ddb62c0 0000000000000000 fffff80000b9cb10 : nt!KeBugCheckEx
fffff80000b9c9b0 fffff800042d7cee : 0000000000000000 fffffa801ddb62c0 fffff88000000000 0000000000400000 : nt! ?? ::FNODOBFM::string'+0x43836 fffff80000b9cb10 fffff800042e2433 : fffffa80069a6b30 fffffa8007af82d8 fffff80004462cc0 0000000000000002 : nt!KiPageFault+0x16e fffff80000b9cca0 fffff800042d189c : fffff80004454e80 fffff80004462cc0 0000000000000000 fffff88000dd5f78 : nt!PoIdle+0x253 fffff80000b9cd80 0000000000000000 : fffff80000b9d000 fffff80000b97000 fffff80000b9cd40 00000000`00000000 : nt!KiIdleLoop+0x2c

STACK_COMMAND: kb

FOLLOWUP_IP:
nt!PoIdle+253
fffff800`042e2433 418b442450 mov eax,dword ptr [r12+50h]

SYMBOL_STACK_INDEX: 3

SYMBOL_NAME: nt!PoIdle+253

FOLLOWUP_NAME: MachineOwner

MODULE_NAME: nt

IMAGE_NAME: ntkrnlmp.exe

DEBUG_FLR_IMAGE_TIMESTAMP: 521ea035

FAILURE_BUCKET_ID: X64_0x50_nt!PoIdle+253

BUCKET_ID: X64_0x50_nt!PoIdle+253

Followup: MachineOwner