I agree with Torrentg. The dumps all pretty much say the same thing.
Microsoft (R) Windows Debugger Version 6.11.0001.404 AMD64
Copyright (c) Microsoft Corporation. All rights reserved.
Loading Dump File [C:\Users\Rob\Desktop\Minidump\110609-30607-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available
Symbol search path is: SRV*C:\SymCache*
Symbol information
Executable search path is:
Windows 7 Kernel Version 7600 MP (2 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7600.16385.amd64fre.win7_rtm.090713-1255
Machine Name:
Kernel base = 0xfffff800`02c13000 PsLoadedModuleList = 0xfffff800`02e50e50
Debug session time: Fri Nov 6 01:53:06.979 2009 (GMT-8)
System Uptime: 0 days 0:02:34.977
Loading Kernel Symbols
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Loading User Symbols
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* *
* Bugcheck Analysis *
* *
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Use !analyze -v to get detailed debugging information.
BugCheck 3B, {c000001d, fffff88000000000, fffff880078ca150, 0}
Probably caused by : ntkrnlmp.exe ( nt!IoCancelIrp+64 )
Followup: MachineOwner
---------
0: kd> !analyze -v
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************
SYSTEM_SERVICE_EXCEPTION (3b)
An exception happened while executing a system service routine.
Arguments:
Arg1: 00000000c000001d, Exception code that caused the bugcheck
Arg2: fffff88000000000, Address of the exception record for the exception that caused the bugcheck
Arg3: fffff880078ca150, Address of the context record for the exception that caused the bugcheck
Arg4: 0000000000000000, zero.
Debugging Details:
------------------
EXCEPTION_CODE: (NTSTATUS) 0xc000001d - {EXCEPTION} Illegal Instruction An attempt was made to execute an illegal instruction.
FAULTING_IP:
+13
fffff880`00000000 ff ???
CONTEXT: fffff880078ca150 -- (.cxr 0xfffff880078ca150)
rax=0000000000000009 rbx=fffffa8004651010 rcx=fffffa8005e33b20
rdx=fffffa8004651010 rsi=fffffa80071e5301 rdi=fffff88000000000
rip=fffff88000000000 rsp=fffff880078cab38 rbp=fffff880078cac60
r8=fffff8a00314e000 r9=0000000000000000 r10=fffffa8003700360
r11=0000000000100080 r12=0000000005c5f3b0 r13=0000000000000001
r14=0000000000000000 r15=0000000000000001
iopl=0 nv up ei ng nz ac pe cy
cs=0010 ss=0018 ds=002b es=002b fs=0053 gs=002b efl=00010293
fffff880`00000000 ff ???
Resetting default scope
CUSTOMER_CRASH_COUNT: 1
DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT
BUGCHECK_STR: 0x3B
PROCESS_NAME: explorer.exe
CURRENT_IRQL: 2
LAST_CONTROL_TRANSFER: from fffff80002c36cd4 to fffff88000000000
STACK_TEXT:
fffff880`078cab38 fffff800`02c36cd4 : fffffa80`03700360 fffffa80`04651010 fffff880`078cac60 fffff880`078cabf0 : 0xfffff880`00000000
fffff880`078cab40 fffff800`0309a3d6 : fffff880`078cab01 fffffa80`04651030 fffffa80`071e5320 fffff880`078cabf8 : nt!IoCancelIrp+0x64
fffff880`078cab80 fffff800`02c84153 : fffffa80`06d07750 000007fe`fa2e36c0 fffffa80`071e5320 fffffa80`05d17400 : nt!NtCancelIoFile+0xd6
fffff880`078cabe0 00000000`770d048a : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSystemServiceCopyEnd+0x13
00000000`05c5f388 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x770d048a
FOLLOWUP_IP:
nt!IoCancelIrp+64
fffff800`02c36cd4 450f20c3 mov r11,cr8
SYMBOL_STACK_INDEX: 1
SYMBOL_NAME: nt!IoCancelIrp+64
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: nt
IMAGE_NAME: ntkrnlmp.exe
DEBUG_FLR_IMAGE_TIMESTAMP: 4a5bc600
STACK_COMMAND: .cxr 0xfffff880078ca150 ; kb
FAILURE_BUCKET_ID: X64_0x3B_nt!IoCancelIrp+64
BUCKET_ID: X64_0x3B_nt!IoCancelIrp+64
Followup: MachineOwner