Assertion 'BaseAddress == Vacb->BaseAddress' failed in Cc

Assertion d:\rossrc\reactos\ntoskrnl\cc\view.c(689): BaseAddress == Vacb->BaseAddress

nt!CcRosMapVacbInKernelSpace+0x1ac:

80408e2c cd2c            int     2Ch

kd> ??i

unsigned long 0x13

kd> ??Vacb

struct _ROS_VACB * 0xb0e8fc00

   +0x000 BaseAddress      : (null) 

   +0x004 MemoryArea       : 0xb0e8f008 _MEMORY_AREA

   +0x008 Valid            : 0 ''

   +0x009 Dirty            : 0 ''

   +0x00a PageOut          : 0 ''

   +0x00c MappedCount      : 0

   +0x010 CacheMapVacbListEntry : _LIST_ENTRY [ 0xb0ecc4d8 - 0xf8902d14 ]

   +0x018 DirtyVacbListEntry : _LIST_ENTRY [ 0x0 - 0x0 ]

   +0x020 VacbLruListEntry : _LIST_ENTRY [ 0x805990e0 - 0xb0e91028 ]

   +0x028 FileOffset       : _LARGE_INTEGER 0x0

   +0x030 Mutex            : _KMUTANT

   +0x050 ReferenceCount   : 0

   +0x054 PinCount         : 0n0

   +0x058 SharedCacheMap   : 0xb0e91a90 _ROS_SHARED_CACHE_MAP

kd> ??Vacb->BaseAddress

void * 0x00000000

kd> ??BaseAddress

void * 0xa1199000

kd> ??Vacb->MemoryArea

struct _MEMORY_AREA * 0xb0e8f008

   +0x000 VadNode          : _MMVAD

   +0x028 Type             : 0

   +0x02c Protect          : 4

   +0x030 Flags            : 0

   +0x034 DeleteInProgress : 0 ''

   +0x038 Magic            : 0x64616544

   +0x03c Vad              : (null) 

   +0x040 Data             : <unnamed-tag>

kd> ??NumberOfPages

unsigned long 0x40

kd> ??PageFrameNumber

unsigned long 0xb7e6

kd> kp

ChildEBP RetAddr  

f8025970 80408c17 nt!CcRosMapVacbInKernelSpace(struct _ROS_VACB * Vacb = 0xb0e8fc00)+0x1ac [d:\rossrc\reactos\ntoskrnl\cc\view.c @ 689]

f80259ac 8040879f nt!CcRosCreateVacb(struct _ROS_SHARED_CACHE_MAP * SharedCacheMap = 0xb0e91a90, int64 FileOffset = 0n0, struct _ROS_VACB ** Vacb = 0xf80259d4)+0x3b7 [d:\rossrc\reactos\ntoskrnl\cc\view.c @ 834]

f80259d8 80408fcd nt!CcRosGetVacb(struct _ROS_SHARED_CACHE_MAP * SharedCacheMap = 0xb0e91a90, int64 FileOffset = 0n0, int64 * BaseOffset = 0xf8025a08, void ** BaseAddress = 0xf8025aa4, unsigned char * UptoDate = 0xf8025a7b "", struct _ROS_VACB ** Vacb = 0xf8025a7c)+0x4f [d:\rossrc\reactos\ntoskrnl\cc\view.c @ 876]

f8025a10 804050ea nt!CcRosRequestVacb(struct _ROS_SHARED_CACHE_MAP * SharedCacheMap = 0xb0e91a90, int64 FileOffset = 0n0, void ** BaseAddress = 0xf8025aa4, unsigned char * UptoDate = 0xf8025a7b "", struct _ROS_VACB ** Vacb = 0xf8025a7c)+0xad [d:\rossrc\reactos\ntoskrnl\cc\view.c @ 936]

f8025aa8 80405bf1 nt!CcCopyData(struct _FILE_OBJECT * FileObject = 0xb0e93ab0, int64 FileOffset = 0n0, void * Buffer = 0x00414ed0, int64 Length = 0n16384, _CC_COPY_OPERATION Operation = CcOperationWrite (0n1), unsigned char Wait = 0x01 '', struct _IO_STATUS_BLOCK * IoStatus = 0xf8025ad4)+0x33a [d:\rossrc\reactos\ntoskrnl\cc\copy.c @ 348]

f8025adc f8ba2586 nt!CcCopyWrite(struct _FILE_OBJECT * FileObject = 0xb0e93ab0, union _LARGE_INTEGER * FileOffset = 0xf8025b80 0x0, unsigned long Length = 0x4000, unsigned char Wait = 0x01 '', void * Buffer = 0x00414ed0)+0x31 [d:\rossrc\reactos\ntoskrnl\cc\copy.c @ 848]

f8025ba8 f8ba0710 fastfat!VfatWrite(struct VFAT_IRP_CONTEXT * IrpContext = 0xb0efa328)+0x626 [d:\rossrc\reactos\drivers\filesystems\fastfat\rw.c @ 991]

f8025bcc f8ba0667 fastfat!VfatDispatchRequest(struct VFAT_IRP_CONTEXT * IrpContext = 0xb0efa328)+0x90 [d:\rossrc\reactos\drivers\filesystems\fastfat\misc.c @ 133]

f8025be8 80467567 fastfat!VfatBuildRequest(struct _DEVICE_OBJECT * DeviceObject = 0xb1259018, struct _IRP * Irp = 0xb0e8f810)+0x77 [d:\rossrc\reactos\drivers\filesystems\fastfat\misc.c @ 239]

f8025c0c 8045eca2 nt!IofCallDriver(struct _DEVICE_OBJECT * DeviceObject = 0xb1259018, struct _IRP * Irp = 0xb0e8f810)+0x97 [d:\rossrc\reactos\ntoskrnl\io\iomgr\irp.c @ 1288]

f8025c28 80463186 nt!IopPerformSynchronousRequest(struct _DEVICE_OBJECT * DeviceObject = 0xb1259018, struct _IRP * Irp = 0xb0e8f810, struct _FILE_OBJECT * FileObject = 0xb0e93ab0, unsigned char Deferred = 0x01 '', char PreviousMode = 0n1 '', unsigned char SynchIo = 0x01 '', _IOP_TRANSFER_TYPE TransferType = IopWriteTransfer (0n1))+0x32 [d:\rossrc\reactos\ntoskrnl\io\iomgr\iofunc.c @ 142]

f8025ce8 804fce6b nt!NtWriteFile(void * FileHandle = 0x0000004c, void * Event = 0x00000000, <function> * ApcRoutine = 0x00000000, void * ApcContext = 0x00000000, struct _IO_STATUS_BLOCK * IoStatusBlock = 0x021cfc44, void * Buffer = 0x00414ed0, unsigned long Length = 0x4000, union _LARGE_INTEGER * ByteOffset = 0x00000000, unsigned long * Key = 0x00000000)+0x686 [d:\rossrc\reactos\ntoskrnl\io\iomgr\iofunc.c @ 3810]

f8025d1c 804fc50f nt!KiSystemCallTrampoline(void * Handler = 0x80462b00, void * Arguments = 0x021cfc20, unsigned long StackBytes = 0x24)+0x1b [d:\rossrc\reactos\ntoskrnl\include\internal\i386\ke.h @ 748]

f8025d5c 80403e23 nt!KiSystemServiceHandler(struct _KTRAP_FRAME * TrapFrame = 0xf8025d64, void * Arguments = 0x021cfc20)+0x22f [d:\rossrc\reactos\ntoskrnl\ke\i386\traphdlr.c @ 1813]

f8025d5c 7c92d0ae nt!KiFastCallEntry+0x8c

WARNING: Frame IP not in any known module. Following frames may be wrong.

021cfc60 00405f6e 0x7c92d0ae

021cfd78 8042c3cb 0x405f6e

021cfd84 8042c869 nt!_ExiReleaseSpinLockAndRestoreInterrupts(unsigned long * Lock = 0x000263c8, unsigned char Enable = 0x4c 'L')+0x1b [d:\rossrc\reactos\ntoskrnl\ex\interlocked.c @ 56]

f800da84 7c7ace90 nt!ExfInterlockedRemoveHeadList(struct _LIST_ENTRY * ListHead = 0x00000000, unsigned long * Lock = 0x000e017a)+0x69 [d:\rossrc\reactos\ntoskrnl\ex\interlocked.c @ 399]

00000000 00000000 0x7c7ace90