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Windows 7: BSOD, Reference by Pointer

03 Feb 2010   #1

Windows 7
BSOD, Reference by Pointer

I've been getting the BSOD a few times a week since I bought my lap top. It's a Dell Vostro 1520 with Windows 7.

The BSOD always says reference by pointer, I can't figure out what is causing it.

Attached is a zip file with the mini dump information.

Any help is appreciated.

My System SpecsSystem Spec
03 Feb 2010   #2

Win 8 Release candidate 8400

Quote   Quote: Originally Posted by bkoyl1 View Post
I've been getting the BSOD a few times a week since I bought my lap top. It's a Dell Vostro 1520 with Windows 7.

The BSOD always says reference by pointer, I can't figure out what is causing it.

Attached is a zip file with the mini dump information.

Any help is appreciated.

Hi BK and welcome

this one is pretty straight followed. Its your PCTools, specifically PCTCore64.sys. I would uninstall it and see if the problem goes away. You can always re-install it later

I would also run a system file check
start>cmd>right click and run as admin>sfc /scannow

Let us know the results

good luck


Microsoft (R) Windows Debugger Version 6.11.0001.404 X86
Copyright (c) Microsoft Corporation. All rights reserved.

Loading Dump File [C:\Users\K\Desktop\020310-14742-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*d:\symbols*
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`02a17000 PsLoadedModuleList = 0xfffff800`02c54e50
Debug session time: Wed Feb  3 15:18:35.060 2010 (GMT-5)
System Uptime: 0 days 0:00:57.979
Loading Kernel Symbols
Loading User Symbols
Loading unloaded module list
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *

Use !analyze -v to get detailed debugging information.

BugCheck 18, {0, fffffa800c7445a0, 2, ffffffffffffffff}

Unable to load image \SystemRoot\system32\drivers\PCTCore64.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for PCTCore64.sys
*** ERROR: Module load completed but symbols could not be loaded for PCTCore64.sys
Probably caused by : PCTCore64.sys ( PCTCore64+20987 )

Followup: MachineOwner

1: kd> !analyze -v
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *

Arg1: 0000000000000000, Object type of the object whose reference count is being lowered
Arg2: fffffa800c7445a0, Object whose reference count is being lowered
Arg3: 0000000000000002, Reserved
Arg4: ffffffffffffffff, Reserved
    The reference count of an object is illegal for the current state of the object.
    Each time a driver uses a pointer to an object the driver calls a kernel routine
    to increment the reference count of the object. When the driver is done with the
    pointer the driver calls another kernel routine to decrement the reference count.
    Drivers must match calls to the increment and decrement routines. This bugcheck
    can occur because an object's reference count goes to zero while there are still
    open handles to the object, in which case the fourth parameter indicates the number
    of opened handles. It may also occur when the object’s reference count drops below zero
    whether or not there are open handles to the object, and in that case the fourth parameter
    contains the actual value of the pointer references count.

Debugging Details:




PROCESS_NAME:  pctsSvc.exe


LAST_CONTROL_TRANSFER:  from fffff80002a1efac to fffff80002a88f00

fffff880`07145628 fffff800`02a1efac : 00000000`00000018 00000000`00000000 fffffa80`0c7445a0 00000000`00000002 : nt!KeBugCheckEx
fffff880`07145630 fffff880`0115b987 : fffffa80`0c7446c8 fffff8a0`03536460 00000000`00000460 00000000`00000460 : nt! ?? ::FNODOBFM::`string'+0x46661
fffff880`07145690 fffffa80`0c7446c8 : fffff8a0`03536460 00000000`00000460 00000000`00000460 fffffa80`0c7446c0 : PCTCore64+0x20987
fffff880`07145698 fffff8a0`03536460 : 00000000`00000460 00000000`00000460 fffffa80`0c7446c0 fffff880`0115c6d1 : 0xfffffa80`0c7446c8
fffff880`071456a0 00000000`00000460 : 00000000`00000460 fffffa80`0c7446c0 fffff880`0115c6d1 fffff8a0`03536460 : 0xfffff8a0`03536460
fffff880`071456a8 00000000`00000460 : fffffa80`0c7446c0 fffff880`0115c6d1 fffff8a0`03536460 00000000`c000000f : 0x460
fffff880`071456b0 fffffa80`0c7446c0 : fffff880`0115c6d1 fffff8a0`03536460 00000000`c000000f fffff880`07145770 : 0x460
fffff880`071456b8 fffff880`0115c6d1 : fffff8a0`03536460 00000000`c000000f fffff880`07145770 fffff880`07145760 : 0xfffffa80`0c7446c0
fffff880`071456c0 fffff8a0`03536460 : 00000000`c000000f fffff880`07145770 fffff880`07145760 00000000`00000001 : PCTCore64+0x216d1
fffff880`071456c8 00000000`c000000f : fffff880`07145770 fffff880`07145760 00000000`00000001 fffff880`00000080 : 0xfffff8a0`03536460
fffff880`071456d0 fffff880`07145770 : fffff880`07145760 00000000`00000001 fffff880`00000080 fffff880`00000007 : 0xc000000f
fffff880`071456d8 fffff880`07145760 : 00000000`00000001 fffff880`00000080 fffff880`00000007 fffff800`00000001 : 0xfffff880`07145770
fffff880`071456e0 00000000`00000001 : fffff880`00000080 fffff880`00000007 fffff800`00000001 fffff880`00000021 : 0xfffff880`07145760
fffff880`071456e8 fffff880`00000080 : fffff880`00000007 fffff800`00000001 fffff880`00000021 00000000`00000000 : 0x1
fffff880`071456f0 fffff880`00000007 : fffff800`00000001 fffff880`00000021 00000000`00000000 00000000`00000000 : 0xfffff880`00000080
fffff880`071456f8 fffff800`00000001 : fffff880`00000021 00000000`00000000 00000000`00000000 00000000`00000000 : 0xfffff880`00000007
fffff880`07145700 fffff880`00000021 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0xfffff800`00000001
fffff880`07145708 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 fffff880`00000800 : 0xfffff880`00000021


fffff880`0115b987 ??              ???


SYMBOL_NAME:  PCTCore64+20987

FOLLOWUP_NAME:  MachineOwner


IMAGE_NAME:  PCTCore64.sys


FAILURE_BUCKET_ID:  X64_0x18_PCTCore64+20987

BUCKET_ID:  X64_0x18_PCTCore64+20987

Followup: MachineOwner
My System SpecsSystem Spec

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