*** Fatal System Error: 0x00000050
                       (0xF77AF874,0x00000001,0x94AC4D33,0x00000002)

Driver at fault: 
***    win32k.sys - Address 94AC4D33 base at 94A00000, DateStamp 55635516
.
Break instruction exception - code 80000003 (first chance)

A fatal system error has occurred.
Debugger entered on first try; Bugcheck callbacks have not been invoked.

A fatal system error has occurred.

Connected to Windows 7 7601 x86 compatible target at (Mon Jun 29 00:39:39.319 2015 (UTC + 2:00)), ptr64 FALSE
Loading Kernel Symbols
...............................................................
................................................................
.........................
Loading User Symbols
..................
Loading unloaded module list
....
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 50, {f77af874, 1, 94ac4d33, 2}

Probably caused by : win32k.sys ( win32k!memmove+33 )

Followup: MachineOwner
---------

Assertion: *** DPC watchdog timeout
    This is NOT a break in update time
    This is most likely a BUG in an ISR
    Perform a stack trace to find the culprit
    The period will be doubled on continuation
    Use gh to continue!!

nt!KeAccumulateTicks+0x3c5:
82a7d9ec cd2c            int     2Ch
kd> !analyze -v
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

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: f77af874, memory referenced.
Arg2: 00000001, value 0 = read operation, 1 = write operation.
Arg3: 94ac4d33, If non-zero, the instruction address which referenced the bad memory
	address.
Arg4: 00000002, (reserved)

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


WRITE_ADDRESS:  f77af874 

FAULTING_IP: 
win32k!memmove+33
94ac4d33 f3a5            rep movs dword ptr es:[edi],dword ptr [esi]

MM_INTERNAL_CODE:  2

IMAGE_NAME:  win32k.sys

DEBUG_FLR_IMAGE_TIMESTAMP:  55635516

MODULE_NAME: win32k

FAULTING_MODULE: 94a00000 win32k

DEFAULT_BUCKET_ID:  WIN7_DRIVER_FAULT

BUGCHECK_STR:  0x50

PROCESS_NAME:  csrss.exe

CURRENT_IRQL:  1c

TRAP_FRAME:  8dce6fdc -- (.trap 0xffffffff8dce6fdc)
ErrCode = 00000002
eax=ff679284 ebx=f77af874 ecx=00000013 edx=00000000 esi=ff679238 edi=f77af874
eip=94ac4d33 esp=8dce7050 ebp=8dce7058 iopl=0         nv up ei pl nz ac po nc
cs=0008  ss=0010  ds=0023  es=0023  fs=0030  gs=0000             efl=00010212
win32k!memmove+0x33:
94ac4d33 f3a5            rep movs dword ptr es:[edi],dword ptr [esi]
Resetting default scope

LAST_CONTROL_TRANSFER:  from 82a7ceb3 to 82a7d9ec

STACK_TEXT:  
8dce6a00 82a7ceb3 0002625a 00000000 00035800 nt!KeAccumulateTicks+0x3c5
8dce6a40 82a7cd60 82e300a8 a4da245f 00000000 nt!KeUpdateRunTime+0x145
8dce6a98 82a7c563 00000002 00000002 000000d1 nt!KeUpdateSystemTime+0x613
8dce6a98 82e300a8 00000002 00000002 000000d1 nt!KeUpdateSystemTimeAssist+0x13
8dce6b1c 82e1eb8c 00001000 00000000 8dce6b7c hal!READ_PORT_USHORT+0x8
8dce6b2c 82e1ecf5 82ae1582 3dae1bc3 00000065 hal!HalpCheckPowerButton+0x2e
8dce6b30 82ae1582 3dae1bc3 00000065 00000000 hal!HaliHaltSystem+0x7
8dce6b7c 82ae2029 00000003 c0603dd8 f77af874 nt!KiBugCheckDebugBreak+0x73
8dce6f40 82a8fff9 00000050 f77af874 00000001 nt!KeBugCheck2+0x68b
8dce6fc4 82a42a88 00000001 f77af874 00000000 nt!MmAccessFault+0x104
8dce6fc4 94ac4d33 00000001 f77af874 00000000 nt!KiTrap0E+0xdc
8dce7058 94ab7ea7 f77af874 ff679238 0000004c win32k!memmove+0x33
8dce707c 94aacdc3 00000011 190f3c96 fda2b000 win32k!vSrcCopyS32D32Identity+0x5b
8dce72bc 94abc179 fda2b010 ff679010 8dce7624 win32k!EngCopyBits+0x60a
8dce7334 94be7c21 fda2b010 ff679010 00000000 win32k!EngBitBlt+0x4f2
8dce7444 94be7c65 fda2b010 ff679010 00000000 win32k!PanBitBlt+0xf6
8dce7478 94ad81c2 fef10db8 ff679010 8dce7624 win32k!PanCopyBits+0x27
8dce74c0 94ac8206 94be7c3e 8dce7750 fef10db8 win32k!OffCopyBits+0x7d
8dce7764 94ad820d fef10db8 ff679010 00000000 win32k!SpBitBlt+0x252
8dce7798 94ad7a0d fef10db8 ff679010 00000000 win32k!SpCopyBits+0x27
8dce7880 94a3e2b5 fef7ef68 94c225f0 fef7ef68 win32k!NtGdiBitBltInternal+0x6ab
8dce78c0 94a531dd d701081f ffff8088 ffff821a win32k!BitBltSysBmp+0x45
8dce793c 94aa85ea fcc00618 d701081f 0000100c win32k!xxxDrawCaptionBar+0x471
8dce7960 94aafeb0 0000100c 00000000 00000000 win32k!xxxDWP_DoNCActivate+0xd6
8dce79dc 94a897a7 fcc00618 00000086 00000000 win32k!xxxRealDefWindowProc+0x7fe
8dce7a00 94a9f1fe fcc00618 00000086 00000000 win32k!xxxDefWindowProc+0x10f
8dce7a7c 94a9f177 fcc00618 00000086 00000000 win32k!xxxDesktopWndProcWorker+0x75
8dce7a9c 94abb953 fcc00618 00000086 00000000 win32k!xxxDesktopWndProc+0x4e
8dce7adc 94abba25 fcc00618 00000086 00000000 win32k!xxxSendMessageTimeout+0x1ac
8dce7b04 94b4e147 fcc00618 00000086 00000000 win32k!xxxSendMessage+0x28
8dce7b30 94b4da20 fcc00618 00000000 00000000 win32k!xxxFlashWindow+0xf8
8dce7b58 94aacfdd fcc00618 00000118 0000fff8 win32k!xxxSystemTimerProc+0x126
8dce7b88 94aa1982 fa9b6fb8 fe55edd0 94c2bea0 win32k!xxxDispatchMessage+0x119
8dce7bc8 94a16207 fe55edd0 94c2bea0 00000004 win32k!xxxHandleDesktopMessages+0xaa
8dce7c04 94a1e0c1 94f8eff8 00000001 94c2bea0 win32k!xxxDesktopThread+0x1bb
8dce7c18 94ad51bd 00000004 0083f9dc 8dce7c34 win32k!xxxCreateSystemThreads+0x54
8dce7c28 82a3f8a6 00000004 0083fa1c 77c87074 win32k!NtUserCallNoParam+0x1b
8dce7c28 77c87074 00000004 0083fa1c 77c87074 nt!KiSystemServicePostCall
0083f9cc 75be19e4 75be285f 00000004 00000000 ntdll!KiFastSystemCallRet
0083f9d0 75be285f 00000004 00000000 77c45e8a winsrv!NtUserCallNoParam+0xc
0083f9dc 77c45e8a 00000000 7752b471 00000000 winsrv!StartCreateSystemThreads+0x12
0083fa1c 77ca396e 75be284d 00000000 00000000 ntdll!__RtlUserThreadStart+0x28
0083fa34 00000000 75be284d 00000000 00000000 ntdll!_RtlUserThreadStart+0x1b


STACK_COMMAND:  kb

FOLLOWUP_IP: 
win32k!memmove+33
94ac4d33 f3a5            rep movs dword ptr es:[edi],dword ptr [esi]

SYMBOL_STACK_INDEX:  b

SYMBOL_NAME:  win32k!memmove+33

FOLLOWUP_NAME:  MachineOwner

FAILURE_BUCKET_ID:  0x50_VRF_win32k!memmove+33

BUCKET_ID:  0x50_VRF_win32k!memmove+33

Followup: MachineOwner
---------

