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Windbg Crash Dump Analysis Commands


To do this, enter these four commands, pressing enter after each one. .logopen /t c:\temp\firefox-debug.log .childdbg 1 .tlist sxn gp lm If you see firefox.exe listed in the output from .tlist Also we can see that the !address command was written by using the EngExtCpp API and that the ExtensionApis global variable is automatically initialized on entry to an EngExtCpp method and Back to top ' #8 Nanook Members 533 Like 0Likes Like Posted 19 August 2012 - 02:21 PM You are giving your GPU a pointer to an object that If you wish to continue this conversation start a new topic.

eax=00000000 ebx=00e7b174 ecx=00000000 edx=00000000 esi=00000002 edi=00000000 eip=77d0013d esp=00e7b124 ebp=00e7b1c0 iopl=0 nv up ei pl zr na pe nc cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00000246 ntdll!ZwWaitForMultipleObjects+0x15: 77d0013d 83c404 add esp,4 0:000> With this option, it will launch the process and it will take the full memory dump when the application crashes and save it to c:\dumps. Hide Newsletter Sign-up © 2005-2016 Mozilla Developer Network and individual contributors. The last item allows to determine the size of the largest free region of virtual memory, which can be helpful when we have to design an application with high memory demands.

Windbg Crash Dump Analysis Commands

Type ".hh dbgerr005" for details. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 00 006afe88 0043096e CrashDemo!TestFunc+0x2e [c:\tests\crashdemo\crashdemo.cpp @ 124] If the minidump Why PAGE_NOACCESS? I should have explained this in the first post.. I really can't think of anything to improve (for now )Going to read the follow-ups now ...GOTOs are a bit like wire coat hangers: they tend to breed in the darkness,

A: You ran the application without the "Debug child processes also" check box being checked. cdb -z c:\myapp.dmp -logo out.txt -lines -c ".cxr dwo(0x006af9e0+4);kb;q" ('dwo' operator returns the double word stored at the specified address and passes it to .cxr command) The batch files presented later Well in any case, the .reload is not verbose. Rtluserthreadstart Any description from you or you could recommend me where can I find what PAGE_NOACCESS exactly means?

If LibreOffice hasnt already crashed, switch over to LibreOffice and attempt to reproduce the halt or crash. Windbg Analyze Put OSR's experience to work for you! d:\procdump4.01> Open WinDbg and load .dmp file (File▸ Open Crash Dump...). click site Wielder of the Sacred Wands [Work - ArenaNet] [Epoch Language] [Scribblings] Back to top ' #7 krippy2k8 Members 646 Like 0Likes Like Posted 19 August 2012 - 12:55 PM

The memory could not be %s. Windbg Symbols Or want to find the addresses of a set of symbols with the same pattern in the name (for example, all member functions of a class)? Normally, the option selected in most projects is "Maximize Speed," which is enough for debugging the crashes being reported by customer. The automation is possible because we usually have to perform the same set of operations when we start analysing a crash dump.

Windbg Analyze

Not valid address or protected by OS kernel do you mean?=0A=0A3.=0A= =0A"This can also happen in kernel mode if the requested address was paged = out." -- I am debugging a This Site Pretty interesting to follow the methods used. Windbg Crash Dump Analysis Commands You will not receive any warnings of this in Windbg, Visual C++ or Visual Studio. Basethreadinitthunk Msdn Batch files Now we know how to use CDB to solve some interesting debugging problems.

CDB can easily solve this problem – it offers 'x' command, which can list all symbols whose names match the specified mask: x Module!Symbol The following command tries to locate the wouldn't that be a bit of overhead? this would display the path from which symbol file is loaded. Faulting Module Name: Indicates which module in this application or executable has misbehaved. Windbg Commands

Here is how we can do it: ; dt.bat cdb -pv %1 %2 -logo out.txt -c "dt /b %3;q" Now we can run the command like this: dt -pn myapp.exe CTestClass Dump written. WinDbg will show "Busy" at the bottom of the application window until the download is complete. share|improve this answer answered Apr 24 '14 at 11:24 tehlexx 2,127920 +1.

a PAGE_NOACCESS page). = This can also happen in kernel mode if the requested address was paged out. Windbg Tutorial I guess thats the problem? It's time to solve one more problem – replace long CDB command lines with easy-to-use batch files.

Once debugging has started, the command field will turn gray and Debuggee is running...

What is the exact error message you get when the app crashes? You will need to repeat this a second time if you used Ctrl+E or clicked File▸ Open Executable... Here is the declaration of EXCEPTION_POINTERS structure: typedef struct _EXCEPTION_POINTERS { PEXCEPTION_RECORD ExceptionRecord; PCONTEXT ContextRecord; } EXCEPTION_POINTERS, *PEXCEPTION_POINTERS; If we know the address of this structure, we can take the pointer Windbg Load Symbols And the third block gives us additional information on how to access the exception information stored in the crash dump.

A: If you see 'int 3' after either of those exceptions, you will need to execute the following commands in WinDbg. map out you mean page out? Why does rotation occur? cd "C:\Program Files (x86)\LibreOffice 4\program"
start soffice.exe
timeout 5
C: # if PATH_TO is not on C: drive
cd "C:\Program Files (x86)\Windows Kits\8.1\Debuggers\x86\"
start windbg.exe -W

Following frames may be wrong. 14c4e684 0ea2f205 0xedfd89 14c4e6b4 0ea309dc nvoglv32!DrvPresentBuffers+0x112a45 14c4e6dc 0ea30cf9 nvoglv32!DrvPresentBuffers+0x11421c 14c4e70c 0ea33a8d nvoglv32!DrvPresentBuffers+0x114539 14c4e7e8 0e26453c nvoglv32!DrvPresentBuffers+0x1172cd 14c4e818 0e83a2f2 nvoglv32+0x18453c 14c4faa4 0e83c0a1 nvoglv32+0x75a2f2 14c4faec 0e83d6f8 nvoglv32+0x75c0a1 14c4fb00 0e8ff32b Watson, NTSD, or other) or creates a minidump in the custom filter for unhandled exceptions. Are your OpenGL function pointers setup correctly? Sign In·ViewThread·Permalink Links to other parts Stefan_Lang13-Jan-14 4:04 Stefan_Lang13-Jan-14 4:04 Great article series, but could you perhaps insert forward/backward links to the other parts, or just a list of links

DebugView will gather debug information: 00000001 0.00000000 [5112] WinInetBackend A 759F0000 00000002 0.00007052 [5112] WinInetBackend B 759F6F21 00000003 0.01316426 [5112] WinInetBackend C 0 14 0 00000004 0.01324074 [5112] WinInetBackend D 0 If Firefox fails to start, and you see lines of text followed by a command prompt in the debugger, a "breakpoint" may have been triggered. Back to top ' #4 Nanook Members 533 Like 0Likes Like Posted 19 August 2012 - 09:27 AM You say you're using Visual Studio, but the output is very a PAGE_NOACCESS page).=A0 This can also happen in kernel mode if the req= uested address was paged out.=0A=0ADepending on whether the dump file was w= ritten with enough information, you may

In the command prompt you will see 0.000> and this is the thread ID. I realize this is tricky when you just release the first article, but you could add them later on.[edit]forget it, just spotted it! [/edit]GOTOs are a bit like wire coat hangers: Search Comments Spacing RelaxedCompactTight Layout NormalOpen TopicsOpen AllThread View Per page 102550 First Prev Next what if my application is not listed in crash dump Sachin Shinde16-Jul-15 20:59 Sachin will be written in it, with the word *BUSY* appearing in the field to its left.

This should be in the debugger folder or it should show up in start->Programs->Debugging tools for windows.