Defraggler : Corrupts FS and crashes

FAT: ClustersFree b2 h != FreeClusterBitMapClear a8 h

Assertion failed at /srv/buildbot/worker_data/Build_GCCLin_x86/build/drivers/filesystems/fastfat/allocsup.c(5274): (Vcb)->CurrentWindow->ClustersFree == FreeClusterBitMapClearEntered debugger on first-chance exception (Exception Code: 0xc0000420) (Assertion Failure)

kdb:> bt

Eip:

<fastfat.sys:658f (sdk/include/crt/mingw32/intrin_x86.h:1700 (FatExamineFatEntries))>

Frames:

<fastfat.sys:7698 (drivers/filesystems/fastfat/allocsup.c:1951 (FatAllocateDiskSpace))>

<fastfat.sys:3044b (drivers/filesystems/fastfat/fsctrl.c:6139 (FatMoveFile))>

<fastfat.sys:313d4 (drivers/filesystems/fastfat/fsctrl.c:2900 (FatUserFsCtrl))>

<fastfat.sys:33901 (drivers/filesystems/fastfat/fsctrl.c:799 (FatCommonFileSystemControl))>

<fastfat.sys:33ab8 (drivers/filesystems/fastfat/fsctrl.c:720 (FatFsdFileSystemControl))>

<ntoskrnl.exe:791bd (ntoskrnl/io/iomgr/irp.c:1286 (IofCallDriver))>

<ntoskrnl.exe:6efbf (sdk/include/crt/mingw32/intrin_x86.h:724 (IopPerformSynchronousRequest))>

<ntoskrnl.exe:6fd1b (ntoskrnl/io/iomgr/iofunc.c:641 (IopDeviceFsIoControl))>

<ntoskrnl.exe:71259 (ntoskrnl/io/iomgr/iofunc.c:1472 (NtFsControlFile))>

<ntoskrnl.exe:3fe5 (:0 (KiSystemCallTrampoline))>

<ntoskrnl.exe:16772b (ntoskrnl/ke/i386/traphdlr.c:1840 (KiSystemServiceHandler))>

<ntoskrnl.exe:3e2f (:0 (KiFastCallEntry))>

<ntdll.dll:f47d>

<Defraggler.exe:1e3a35>

<Defraggler.exe:1a452e>

<Defraggler.exe:1a5dbf>

<Defraggler.exe:1ad2a5>

<Defraggler.exe:1ad93d>

<Defraggler.exe:1f9d6c>

<Defraggler.exe:8a89b>

<Defraggler.exe:f57e1>--- Press q to abort, any other key to continue ---<Defraggler.exe:f5624>

<Defraggler.exe:f29d4>

<Defraggler.exe:173532>

<Defraggler.exe:1735bc>

<kernel32.dll:1cc9f>