Bug check 2

ERROR: FindPlugIns 8007007b
ERROR: Some plugins may not be available [8007007b]
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

DRIVER_CORRUPTED_EXPOOL (c5)
An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high.  This is
caused by drivers that have corrupted the system pool.  Run the driver
verifier against any new (or suspect) drivers, and if that doesn't turn up
the culprit, then use gflags to enable special pool.
Arguments:
Arg1: 0000000000000008, memory referenced
Arg2: 0000000000000002, IRQL
Arg3: 0000000000000000, value 0 = read operation, 1 = write operation
Arg4: fffff80002baa000, address which referenced memory

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


BUGCHECK_STR:  0xC5_2

CURRENT_IRQL:  f

FAULTING_IP:
nt!ExDeferredFreePool+174
fffff800`02baa000 4c395008        cmp     qword ptr [rax+8],r10

DEFAULT_BUCKET_ID:  WIN7_DRIVER_FAULT

PROCESS_NAME:  System

ANALYSIS_VERSION: 6.3.9600.16384 (debuggers(dbg).130821-1623) amd64fre

DPC_STACK_BASE:  FFFFF80000BA2FB0

TRAP_FRAME:  fffff80000b9c7b0 -- (.trap 0xfffff80000b9c7b0)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=0000000000000000 rbx=0000000000000000 rcx=fffff80002c05a40
rdx=fffffa800445d810 rsi=0000000000000000 rdi=0000000000000000
rip=fffff80002baa000 rsp=fffff80000b9c940 rbp=0000000000000000
 r8=fffffa800445e850  r9=fffffa800445d000 r10=fffffa800445d010
r11=0000000000000001 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0         nv up ei ng nz ac po cy
nt!ExDeferredFreePool+0x174:
fffff800`02baa000 4c395008        cmp     qword ptr [rax+8],r10 ds:00000000`00000008=????????????????
Resetting default scope

LAST_CONTROL_TRANSFER:  from fffff80002b6d6d2 to fffff80002a6ff60

STACK_TEXT:
fffff800`00b9bef8 fffff800`02b6d6d2 : 00000000`00000000 00000000`00000000 00000000`00000000 fffffa80`03c8d000 : nt!RtlpBreakWithStatusInstruction
fffff800`00b9bf00 fffff800`02b6ea98 : fffff800`00000004 fffff800`02c76b40 00000000`0000000f fffff800`02bfec40 : nt!KiBugCheckDebugBreak+0x12
fffff800`00b9bf60 fffff800`02a78004 : fffffa80`036b39b8 fffff880`0160154c fffffa80`036abcc0 fffff800`02af56a2 : nt!KeBugCheck2+0xcf8
fffff800`00b9c630 fffff800`02a77469 : 00000000`0000000a 00000000`00000008 00000000`00000002 00000000`00000000 : nt!KeBugCheckEx+0x104
fffff800`00b9c670 fffff800`02a760e0 : 00000000`00000001 00000000`00000000 fffffa80`03b240d0 00000000`00000001 : nt!KiBugCheckDispatch+0x69
fffff800`00b9c7b0 fffff800`02baa000 : 00000000`00000000 fffffa80`03d27a10 fffffa80`03d271a0 fffff880`03c0f783 : nt!KiPageFault+0x260
fffff800`00b9c940 fffff800`02bab4c1 : fffffa80`03d271a0 fffffa80`0445b920 00000000`00000000 00000000`00000000 : nt!ExDeferredFreePool+0x174
fffff800`00b9c9d0 fffff880`03c35557 : 00000000`54627255 00000000`000003d0 fffffa80`70627375 fffffa80`000003ed : nt!ExFreePoolWithTag+0x411
fffff800`00b9ca80 fffff880`03c205bc : fffffa80`03d27050 fffffa80`0445b902 00000000`00000000 fffffa80`03d271a0 : USBPORT!USBPORT_DereferenceDeviceHandle+0xff
fffff800`00b9cae0 fffff880`03c20ab7 : fffffa80`04460802 fffffa80`0445d8c0 00000000`ffffffff fffffa80`03d27ea8 : USBPORT!USBPORT_Core_iCompleteDoneTransfer+0x9f8
fffff800`00b9cbc0 fffff880`03c1e64f : fffffa80`03d27ea8 fffffa80`03d271a0 fffffa80`03d28040 00000000`00000000 : USBPORT!USBPORT_Core_iIrpCsqCompleteDoneTransfer+0x3a7
fffff800`00b9cc20 fffff880`03c0ff89 : fffffa80`03d27050 00000000`00000000 fffffa80`03d27e02 fffffa80`03d27ea8 : USBPORT!USBPORT_Core_UsbIocDpc_Worker+0xf3
fffff800`00b9cc60 fffff800`02a835dc : fffff800`02bf0e80 fffffa80`03d27ea8 fffffa80`03d27ec0 00000000`00000000 : USBPORT!USBPORT_Xdpc_Worker+0x1d9
fffff800`00b9cc90 fffff800`02a806fa : fffff800`02bf0e80 fffff800`02bfec40 00000000`00000000 fffff880`03c0fdb0 : nt!KiRetireDpcList+0x1bc
fffff800`00b9cd40 00000000`00000000 : fffff800`00b9d000 fffff800`00b97000 fffff800`00b9cd00 00000000`00000000 : nt!KiIdleLoop+0x5a


STACK_COMMAND:  kb

FOLLOWUP_IP:
nt!ExDeferredFreePool+174
fffff800`02baa000 4c395008        cmp     qword ptr [rax+8],r10

SYMBOL_STACK_INDEX:  6

SYMBOL_NAME:  nt!ExDeferredFreePool+174

FOLLOWUP_NAME:  Pool_corruption

IMAGE_NAME:  Pool_Corruption

DEBUG_FLR_IMAGE_TIMESTAMP:  0

IMAGE_VERSION:  6.1.7600.16385

MODULE_NAME: Pool_Corruption

FAILURE_BUCKET_ID:  X64_0xC5_2_nt!ExDeferredFreePool+174

BUCKET_ID:  X64_0xC5_2_nt!ExDeferredFreePool+174

ANALYSIS_SOURCE:  KM

FAILURE_ID_HASH_STRING:  km:x64_0xc5_2_nt!exdeferredfreepool+174

FAILURE_ID_HASH:  {ff178b7a-c645-45e3-1726-5c1ae55aa106}

Followup: Pool_corruption
---------