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Windows 7: Random reboots with no BSOD. Have memdump

14 Feb 2015   #1
insider69

Windows 7 Ultimate x64
 
 
Random reboots with no BSOD. Have memdump

Gday all.
Was wondering if some enlightened individual could interpret a dump file for me please?
Getting random reboots (haven't changed hardware recently, no specific action causes them etc) and its rather annoying to say the least.
Used windbg to analyse memory.dmp but im a little out of my depth.
Will paste below but from what I can see, theres a problem with the NVidia driver / some bloatware that comes with it - NvBackend.exe

Anyway, opinions and help appreciated.

Please and thanks.




Microsoft (R) Windows Debugger Version 6.12.0002.633 AMD64
Copyright (c) Microsoft Corporation. All rights reserved.

Loading Dump File [C:\Windows\MEMORY.DMP]
Kernel Summary Dump File: Only kernel address space is available
Symbol search path is: srv*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is:
Windows 7 Kernel Version 7601 (Service Pack 1) MP (4 procs) Free x64
Kernel base = 0xfffff800`02c63000 PsLoadedModuleList = 0xfffff800`02ea6890
Debug session time: Sat Feb 7 18:27:12.964 2015 (UTC + 11:00)
System Uptime: 0 days 0:34:18.388
Loading Kernel Symbols
...............................................................
................................................................
............................
Loading User Symbols
PEB is paged out (Peb.Ldr = 00000000`7efdf018). Type ".hh dbgerr001" for details
Loading unloaded module list
.....
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************
Use !analyze -v to get detailed debugging information.
BugCheck 19, {20, fffff8a0035857d0, fffff8a003585a30, 5260104}
Page 1b5ff9 not present in the dump file. Type ".hh dbgerr004" for details
Probably caused by : dxgkrnl.sys ( dxgkrnl!DxgkEscape+c3f )
Followup: MachineOwner
---------
3: kd> !analyze -v
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************
BAD_POOL_HEADER (19)
The pool is already corrupt at the time of the current request.
This may or may not be due to the caller.
The internal pool links must be walked to figure out a possible cause of
the problem, and then special pool applied to the suspect tags or the driver
verifier to a suspect driver.
Arguments:
Arg1: 0000000000000020, a pool block header size is corrupt.
Arg2: fffff8a0035857d0, The pool entry we were looking for within the page.
Arg3: fffff8a003585a30, The next pool entry.
Arg4: 0000000005260104, (reserved)
Debugging Details:
------------------

BUGCHECK_STR: 0x19_20
POOL_ADDRESS: fffff8a0035857d0 Paged pool
DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT
PROCESS_NAME: NvBackend.exe
CURRENT_IRQL: 0
LAST_CONTROL_TRANSFER: from fffff80002e0bcae to fffff80002cd9e80
STACK_TEXT:
fffff880`09f867b8 fffff800`02e0bcae : 00000000`00000019 00000000`00000020 fffff8a0`035857d0 fffff8a0`03585a30 : nt!KeBugCheckEx
fffff880`09f867c0 fffff880`06b13523 : fffff8a0`035857e0 00000000`00000000 fffff880`4b677844 00000000`00000003 : nt!ExDeferredFreePool+0x12da
fffff880`09f86870 fffff960`0022a016 : 00000000`3b01100c fffffa80`09069b50 00000000`7efa4000 00000000`00000020 : dxgkrnl!DxgkEscape+0xc3f
fffff880`09f86bf0 fffff800`02cd9113 : fffffa80`09069b50 fffff880`00000000 00000000`00000000 00000000`00000000 : win32k!NtGdiDdDDIEscape+0x12
fffff880`09f86c20 00000000`7535148a : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSystemServiceCopyEnd+0x13
00000000`0296e688 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x7535148a

STACK_COMMAND: kb
FOLLOWUP_IP:
dxgkrnl!DxgkEscape+c3f
fffff880`06b13523 488d8c24a0000000 lea rcx,[rsp+0A0h]
SYMBOL_STACK_INDEX: 2
SYMBOL_NAME: dxgkrnl!DxgkEscape+c3f
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: dxgkrnl
IMAGE_NAME: dxgkrnl.sys
DEBUG_FLR_IMAGE_TIMESTAMP: 539e411c
FAILURE_BUCKET_ID: X64_0x19_20_dxgkrnl!DxgkEscape+c3f
BUCKET_ID: X64_0x19_20_dxgkrnl!DxgkEscape+c3f
Followup: MachineOwner
---------


My System SpecsSystem Spec
.
14 Feb 2015   #2
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Hello and welcome insider mate some syetm specs please System Info - See Your System Specs we cannot help unless we have those and also please send the dump files Dump Files - Upload to SevenForums
My System SpecsSystem Spec
14 Feb 2015   #3
insider69

Windows 7 Ultimate x64
 
 

Thanks for the response.
Are the system specs relevant if I tell you theyre all compatible as I tailor-made this system and they have been assembled and functioning perfectly for 2 years? I added some for you anyway.
As for the rigmarole of zipping, attaching etc of a dump file, is it not more simple for everyone to use the pasted info?
Im obviously new here and am thankful for the help, yet seems inefficient to do something twice?
My System SpecsSystem Spec
.

14 Feb 2015   #4
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Well I am not seeing anything so I will leave it to someone who can - good luck!
My System SpecsSystem Spec
14 Feb 2015   #5
insider69

Windows 7 Ultimate x64
 
 

Thanks pal I appreciate it. hopefully someone can come to my rescue!
My System SpecsSystem Spec
15 Feb 2015   #6
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Well I see there are no replies yet mate so why not just download those dump files it takes only a couple of minutes and I am unsure of why you don't want to do it - the tutorial is pretty explicit mate.

I am replying because I do want to help and I think you maybe in for a long wait - that's all no reflection your ability to do it or anything like that.
My System SpecsSystem Spec
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 Random reboots with no BSOD. Have memdump




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