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Windows 7: BSOD random times, IRQL_GT_ZERO_AT_SYSTEM_SERVICE 0x0000004a

15 Dec 2013   #1

Windows 7 Professional 64bit
BSOD random times, IRQL_GT_ZERO_AT_SYSTEM_SERVICE 0x0000004a

This is a newly (just this month!) build custom pc however since yesterday I have been getting BSOD. I have attached the grab all from SF diagnostic tool. I am unsure as it says its a problem with ntoskrnl.exe.

System Specs:
MoBo: ASRock FM2A75M Pro4+
Video card: None
Processor: AMD A6-6400k
Memory: GSkill Sniper 8GB
Storage: WD 1TB

My System SpecsSystem Spec
16 Dec 2013   #2

Microsoft Community Contributor Award Recipient

Windows 10 Home 64Bit

Welcome to the Forum.

Bit Defender causes BSOD's. Please remove it for testing purpose. Use Microsoft Security Essentials.

Recommended from a strict BSOD perspective, compatibility & stability compared to other security software:

Microsoft Security Essentials - Free Antivirus for Windows

Malwarebytes - Free

Good and Free system security combination.

Reduce items at start-up: Startup Programs - Change

Perform a clean boot: Troubleshoot Application Conflicts by Performing a Clean Startup

Run a System file check (SFC): SFC /SCANNOW Command - System File Checker

Scan with Kaspersky TDSSKiller:Anti-rootkit utility TDSSKiller

ESET online scanner: Free Online Virus Scanner | ESET

Run Disk Check on your Hard Drive(s): Disk Check

Check for heating issues using Speccy or HWmonitor

Upload a screen shot: Screenshots and Files - Upload and Post in Seven Forums

Microsoft (R) Windows Debugger Version 6.2.9200.20512 AMD64
Copyright (c) Microsoft Corporation. All rights reserved.

Loading Dump File [C:\Users\USER\Downloads\SF_15-12-2013\SF_15-12-2013\121513-16582-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available
Symbol search path is: SRV*c:\symbols*
Executable search path is: 
Windows 7 Kernel Version 7601 (Service Pack 1) MP (2 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7601.18247.amd64fre.win7sp1_gdr.130828-1532
Machine Name:
Kernel base = 0xfffff800`02e67000 PsLoadedModuleList = 0xfffff800`030aa6d0
Debug session time: Mon Dec 16 00:58:05.143 2013 (UTC + 6:00)
System Uptime: 0 days 0:05:30.392
Loading Kernel Symbols
Loading User Symbols
Loading unloaded module list
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
Use !analyze -v to get detailed debugging information.
BugCheck 4A, {7714132a, 2, 0, fffff88009c2cb60}
Probably caused by : ntkrnlmp.exe ( nt!KiSystemServiceExit+245 )
Followup: MachineOwner
1: kd> !analyze -v
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
Returning to usermode from a system call at an IRQL > PASSIVE_LEVEL.
Arg1: 000000007714132a, Address of system function (system call routine)
Arg2: 0000000000000002, Current IRQL
Arg3: 0000000000000000, 0
Arg4: fffff88009c2cb60, 0
Debugging Details:

PROCESS_NAME:  vsserv.exe
00000000`7714132a ??              ???
LAST_CONTROL_TRANSFER:  from fffff80002edc169 to fffff80002edcbc0
fffff880`09c2c928 fffff800`02edc169 : 00000000`0000004a 00000000`7714132a 00000000`00000002 00000000`00000000 : nt!KeBugCheckEx
fffff880`09c2c930 fffff800`02edc0a0 : 00000000`00000a74 fffff880`09c2cb60 00000000`00000000 fffff800`031c6383 : nt!KiBugCheckDispatch+0x69
fffff880`09c2ca70 00000000`7714132a : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSystemServiceExit+0x245
00000000`21abfcc8 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x7714132a

fffff800`02edc0a0 4883ec50        sub     rsp,50h
SYMBOL_NAME:  nt!KiSystemServiceExit+245
FOLLOWUP_NAME:  MachineOwner
IMAGE_NAME:  ntkrnlmp.exe
FAILURE_BUCKET_ID:  X64_RAISED_IRQL_FAULT_vsserv.exe_nt!KiSystemServiceExit+245
BUCKET_ID:  X64_RAISED_IRQL_FAULT_vsserv.exe_nt!KiSystemServiceExit+245
Followup: MachineOwner
My System SpecsSystem Spec
16 Dec 2013   #3

Windows 7 Professional 64bit

Hi koolkat77,

Thanks for your advice it is much appreciated :)

I decided to remove Bitdefender and install Avast based on your advice and what I have read about Bitdefender instability issues. So far it has been great, I will leave Avast on and see the difference, if I get BSOD I will go onto MSE.

I can't believe Bitdefender being this major Antivirus firm, they have such bad stability issues disappointed. I have used Kaspersky and not had any problem.
My System SpecsSystem Spec


 BSOD random times, IRQL_GT_ZERO_AT_SYSTEM_SERVICE 0x0000004a

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