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WinDBG minidump Tutorial: Setting up and reading minidump files

This is a tutorial on how to build and play your files Minidump when you receive a BSOD (blue screen of death) in attempts to better understand how the problem. The first thing is first. Download the latest version of debugging tools from Microsoft. The search for "microsoft debugging tools" into Google.

Then go in Start / Search. Type i
<i> cmd </ i>.

Then change directories:

C: Program FilesDebugging Tools for Windows (x86)

using the command:

cd c: tools filesdebugging program for Windows (x86)

It is insensitive to case when using the <i> cd </ i> command.

Then type:
Windbg.exe-zc: windowsminidumpmini061909-01.dmp-c "analyze-v!"

Your minidump file is located in C: WindowsMinidumpMini062009-01.dmp. This will be in the form "MiniMMDDYY-01.dmp".

SYMBOLS core are FALSE. PLEASE DO FIX ANALYSIS OF SYMBOLS

If somewhere in the outcome of the analysis Bugcheck you see an error like:

***** Kernel symbols are wrong. Please fix symbols to do analysis.

Then, it is likely that you are using symbols preceding and incompatible or corrupted files, or you do not have the correct symbols in the specified location when the program was trying Windbg analyze the minidump file. So what I did was open the program Windbg located in C: Program FilesDebugging Tools for Windows (x86) (In Vista and I think it's the same place for XP).

Setting the PATH Symbol file command line WINDBG:

This an important step to ensure that your file symbol path is set correctly so that you do the kernel symbols are WRONG error or other types of errors. Now set the path to the symbol file (File / Symbol File Path) to:

SRV * e: * http://msdl.microsoft.com/download/symbols symbols

However, for some reason, I found that to set the symbol file path in the file "/ Symbol File Path "You can not edit it directly with the field of" File path / file symbols "So I find what you need to change in the command window by going WinDBG.:

"View / Command"

In the bottom of the window control side the "kd>" prompt type this in:

. Sympath SRV * e: * http://msdl.microsoft.com/download/symbols symbols

The part between the two Asterisks (*) is where the symbols from Microsoft's servers will be downloaded. It is quite large (about 22 MB) so be sure you have enough disk space.

SET symbol in file path environment variable:

Alternatively, you can configure it in your environment variable or in your system or user environment variable. To do this, click on the WINDOWS KEY + e. Key Windows is the key to the right of the left CTRL key on the keyboard. This will open Windows Explorer.

Then click "Settings Advanced "tab at the top left of the window. This step applies only to Vista. For XP users, simply click on the tab Advanced.

Then click "environment variable" at the bottom of the window.

Then click "New" under System Variables. Again, you can create the environment as a user environment variable instead.

In the "Name Variable "type:
_NT_SYMBOL_PATH

In the "Variable Value" type:
symsrv SymSrv.dll * * e: http://msdl.microsoft.com/download/symbols symbols *

If you set the path to the symbol as a system environment variable I think you may have to restart your computer for it to take effect.

OUTPUT COMMAND WINDBG

So what follows is the output of my accident:

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

Loading Dump File [c: windowsminidumpmini062609-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV * e: http://msdl.microsoft.com/download/symbols I * symbols: symbols
Executable search path is:
Windows Server 2008/Windows Vista Kernel Version 6001 (Service Pack 1) MP (2 procs) Free x86 compatible
Product: Winnt following: Personal TerminalServer SingleUserTS
Created by: 6001.18226.x86fre.vistasp1_gdr.090302-1506
Computer Name:
base kernel = 0x8201d000 = 0x82134c70 PsLoadedModuleList
duration of the debug session: Fri, June 26 16:25:11.288 2009 (GMT-7)
System Uptime: 0 days 21:39:36.148
Loading Kernel Symbols
.................................................. .............
.................................................. ..............
.................................................. .........
Loading User Symbols
Loading unloaded module list
............................
************************************************** *****************************
* *
Bugcheck Analysis * *
* *
************************************************** *****************************

Use! Analyze-v to get detailed debugging information.

BugCheck A {820d0c1f 8cb5bcc0, 1b, 1},

Unable to load image SystemRootsystem32DRIVERSSymIMv.sys, Win32 error 0N2
*** WARNING: Unable to verify timestamp for SymIMv.sys
*** ERROR: Module load completed but symbols could not be loaded for SymIMv.sys
Unable to load image SystemRootsystem32DRIVERSNETw3v32.sys, Win32 error 0N2
*** WARNING: Unable to verify timestamp for NETw3v32.sys
*** ERROR: Module load completed, but symbols could not be loaded for NETw3v32.sys
Treatment of initial order! Analyze-v '
Probably caused by: tdx.sys (tdx! TdxMessageTlRequestComplete 94)

Action: MachineOwner
---------

0: kd>! Analyze-v
************************************************** *****************************
* *
Bugcheck Analysis * *
* *
************************************************** *****************************

IRQL_NOT_LESS_OR_EQUAL (A)
An attempt was made to access a pageable (or completely invalid) to a
interrupt request level (IRQL) that is too high. It is generally
caused by drivers using improper addresses.
If a kernel debugger is available get the stack trace.
Arguments:
Arg1: 8cb5bcc0, Memory referenced
Arg2: 0000001b, IRQL
Arg3: 00000001, bitfield:
bit 0: value 0 = read operation, 1 = operation Writing
bit 3: value 0 = not an execute operation, 1 = execute operation (only on chips which support this level of status)
Arg4: 820d0c1f, address which referenced memory

Debugging Details
------------------

WRITE_ADDRESS: GetPointerFromAddress: Unable to read 82154868
Unable to read memory at 82134420 MiSystemVaType
8cb5bcc0

CURRENT_IRQL: 1b

FAULTING_IP:
nt! KiUnwaitThread 19
820d0c1f 890a mov dword ptr [edx], ecx

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT

BUGCHECK_STR: 0xA

PROCESS_NAME: System

TRAP_FRAME: 821126c4 - (Trap 0xffffffff821126c4.)
ErrCode = 00000002
eax = 00000000 ebx = 85c5d4d8 ecx = edx = 8cb5bcc0 8cb5bcc0 esi = edi = 85c5d420 ed9c7048
eip = 82112738 esp = 8211274c ebp 820d0c1f iopl = 0 nv up ei pl nz na pe nc
cs = 0008 ss = 0010 ds = 0023 es = 0023 fs = 0030 gs = 0000 efl = 00010206
nt KiUnwaitThread 0 x19!:
820d0c1f 890a mov dword ptr [edx], ecx ds: 0023:8 cb5bcc0 =????????
Resetting default scope

LAST_CONTROL_TRANSFER: from 82077d24 820d0c1f

STACK_TEXT:
820d0c1f badb0d00 8cb5bcc0 87952ed0 821126c4 nt! 0 KiTrap0E x2ac
8211274c 00000002 8205f486 85c5d420 ed9c7048 nt! KiUnwaitThread 0 x19
82112770 8205f52a ed9c7048 ed9c7008 00000000 nt! 0 KiInsertQueueApc x2a0
82112790 00000000 00000000 8205742b nt ed9c7048! KeInsertQueueApc x4b 0
821127c8 00000000 nt 8f989cd0 e79e1e88 e79e1f70 IopfCompleteRequest! 0 x438
821127e0 00000007 00000000 00000007 8a869ce7 tdx! TdxMessageTlRequestComplete 0 x94
8a869d33 e79e1f70 e79e1e88 82112804 00000000 tcpip! 0 UdpEndSendMessages xfa
8211281c 8a560c7f e79e1e88 00000001 00000000 tcpip! UdpSendMessagesDatagramsComplete 0 x22
889a0558 8211284c 00000000 00000000 8a86e0ab Nieto! Xcf NetioDereferenceNetBufferListChain 0
82112860 8a6d341e 878689e8 00000000 tcpip e79e1e88! 0 FlSendNetBufferListChainComplete x1c
8a6084f1 86c440e8 e79e1e88 82112894 00000000 NDIS! 0 NdisMSendCompleteNetBufferListsInternal XB8
821128a8 8fe3f0ee 87a092b0 e79e1e88 00000000 NDIS! 0 NdisFSendNetBufferListsComplete x1a
8a6084f1 87a07230 00000000 821128cc e79e1e88 stimulator! 0 PcFilterSendNetBufferListsComplete xba
88940c10 821128e0 8fe516f7 e79e1e88 00000000 NDIS! 0 NdisFSendNetBufferListsComplete x1a
WARNING: Stack unwind information not available. Following frames may be wrong.
821128fc 00000000 8a6084f1 889a67a8 e79e1e88 SymIMv x16f7 0
889404e0 00000000 82112910 91ab182f e79e1e88 NDIS! NdisFSendNetBufferListsComplete 0 x1a
82112930 00000000 00000000 88939008 91aaf035 nwifi! MP6CancelSend 0 x231
91ab064c 8893fc08 00000000 82112954 ed8e6080 nwifi! 0 Dot11SendCompletion X2D
8211296c 8a6d34dd 8893fc08 00000000 ed8e6080 nwifi! 0 Pt6SendComplete X1E
8211298c 00000000 NDIS 8ee0ef66 86c440e8 ed8e6080! NdisMSendNetBufferListsComplete 0 x70
821129ac 8ee76a7e 86f6acb0 ed8e6080 00000000 NETw3v32 x6f66 0
82112a10 8ee10e46 b347a4ff 86013be8 b347a478 NETw3v32 x6ea7e 0
82112a38 87091ee0 8ee11061 86f6acb0 82112a64 NETw3v32 x8e46 0
82112a48 8ee10c77 86013be8 86183fc0 89533a30 NETw3v32 0 x9061
82112a64 00000000 8ee71ba2 86f6acb0 000000cd NETw3v32 x8c77 0
82112a8c 8ee1d623 86f6acb0 b347a478 00000000 NETw3v32 x69ba2 0
82112aa0 8ee2f945 872261c8 00000000 b347a478 NETw3v32 0 x15623
82112b04 87600b58 8ee10e46 89beaa20 89533a30 NETw3v32 0 x27945
82112b2c 8ee11061 86f6f0d8 872261c8 82112b58 NETw3v32 x8e46 0
82112b3c 8ee10c77 89beaa20 8655dfb8 89533a64 NETw3v32 0 x9061
82112b58 872261c8 00000000 0000009d 8ee38bc6 NETw3v32 x8c77 0
82112ba8 8ee1a0b1 8771b000 874a1004 NETw3v32 86f37e9c x30bc6 0
82112bd0 8ee1c082 02dd9e68 874a1004 00000000 NETw3v32 x120b1 0
82112c10 00000041 8729c540 8ee1c30b 87229ea0 NETw3v32 0 x14082
82112c50 8729c540 000000ff 8ee1879a 87229ea0 NETw3v32 x1430b 0
82112c80 8729c540 8ee16a89 872b4e01 82112c9c NETw3v32 x1079a 0
82112c90 8729c540 8ee094a5 82112cc4 8a6c5115 NETw3v32 xea89 0
82112c9c 8a6c5115 87079110 00000000 00000000 NETw3v32 0 x14a5
82112cc4 873ffe18 8ee09490 8a606468 00000000 NDIS! 0 NdisMiniportDpc x7a
82112ce8 873ffe18 86c440e8 820d3450 00000000 NDIS! 0 NdisInterruptDpc XC4
82112d50 820d1edd 00000000 0000000th 00000000 nt! KiRetireDpcList 0 x147
0000000th 82112d54 00000000 00000000 00000000 nt! KiIdleLoop 0 x49

STACK_COMMAND: ko

FOLLOWUP_IP:
tdx! 94 TdxMessageTlRequestComplete
8f989cd0 6804010000 push 104h

SYMBOL_STACK_INDEX: 5

SYMBOL_NAME: tdx TdxMessageTlRequestComplete 94!

FOLLOWUP_NAME: MachineOwner

MODULE_NAME: tdx

IMAGE_NAME: tdx.sys

DEBUG_FLR_IMAGE_TIMESTAMP: 479190ee

FAILURE_BUCKET_ID: 0xA_tdx! 94 TdxMessageTlRequestComplete

BUCKET_ID: 0xA_tdx TdxMessageTlRequestComplete 94!

Action: MachineOwner

It looks like a group of hieroglyphs gibberish. However, if you look closely, you can preview later in the potential problem or the cause of it. The system is suggesting PROCESS_NAME a system process. Tdx is the MODULE_NAME.

OUT OF CONTROL KD: TDX LMVM

The tdx clickable for me was running the command:
kd tdx lmvm>

kd as a command. The "LM" in "Lmvm" module is loaded. "V" is verbose. The 'm' is a match pattern. Extract from manual chm debugger as he says:

Pattern m
Indicates a trend that the module name must match. Pattern may contain a variety wildcard characters and specifiers. For more information about the syntax of this information, see Syntax wildcard string.

You can find lots of information from the manual chm when you download windbg from Microsoft. It will be located here:
C: Program FilesDebugging Tools for Windows (x86) Debugger.chm

The output of above command is:
0: kd tdx lmvm>
beginning and end of the module name
8f97f000 8f995000 tdx (pdb symbols) C: Program FilesDebugging Tools for Windows (x86) symtdx.pdbCFB0726BF9864FDDA4B793D5E641E5531tdx.pdb
file loaded image Symbol: tdx.sys
Mapped memory image file: C: Program FilesDebugging Tools for Windows (x86) symtdx.sys479190EE16000tdx.sys
image path: SystemRootsystem32DRIVERStdx.sys
Image Name: tdx.sys
Timestamp: 9:55:58 p.m. Fri, 18 January 2008 (479190EE)
Checksum: 0001391F
ImageSize: 00016000
File Version: 6.0.6001.18000
Product Version: 6.0.6001.18000
File flags: 0 (Mask 3F)
File OS: 40004 NT Win32
File type: 3.6 Driver
File date: 00000000.00000000
Translations: 0409.04b0
CompanyName: Microsoft Corporation
ProductName: Microsoft ® Windows ® Operating System
InternalName: tdx.sys
OriginalFilename: tdx.sys
ProductVersion: 6.0.6001.18000
FileVersion: 6.0.6001.18000 (longhorn_rtm.080118-1840)
FileDescription: TDI Translation Driver
LegalCopyright: © Microsoft Corporation. All rights reserved.

So we still glean some information. Who's modulus and possible cause of the problem.

I look STACK_TEXT and there are references to tcpip and Nieto seems to allude to a network problem. So I googled the other problem with a BSOD and tdx.sys and there is a fix for this problem. However, a big word of caution please Do not download the patch if this particular problem does apply to you. Microsoft suggests using the procedures that will include all Microsoft Update patches.

To get the link to the fix for the problem in the Google Network "Microsoft hotfix 934611.

I do not download this fix, but instead chose to update my service pack. Currently, Vista Service Pack 2. I had the Service Pack 1. So I'll see if that corrects the problem.

To check what service pack you have installed and what version of Bit (32-bit or 64-bit), see:

"Start / Computer". Right-click "Computer" then click "Properties". You'll see information under Service Pack the heading "Windows edition". Under "System" (mid-point of the page), you will see "system type" that displays if you have 32-bit or 64-bit versions installed.

To obtain Service Pack 2 for Vista Google "Microsoft Windows Vista SP2.

About the Author

Vista Tutorial, tips, guides. Victor Kimura
Vista Tutorial Windbg Minidump Tutorial

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