This provides the Data Access Component (DAC) that allows the SOS.DLL debugger extension to interpret the in memory data structures that maintain the state of a .NET application. WinDbg first tries to get the DLL from the Microsoft symbol server, but loading fails: SYMSRV: C:\Temp\localsymbols\mscordacwks_AMD64_AMD64_2.0.50727.4200.dll\4A9EE32D9b0000\mscordacwks_AMD64_AMD64_2.0.50727.4200.dll not found SYMSRV: http://msdl.microsoft.com/download/symbols/mscordacwks_AMD64_AMD64_2.0.50727.4200.dll/4A9EE32D9b0000/mscordacwks_AMD64_AMD64_2.0.50727.4200.dll not found SYMSRV: C:\Temp\localsymbols\mscordacwks_AMD64_AMD64_2.0.50727.4200.dll\4A9EE32D9b0000\mscordacwks_AMD64_AMD64_2.0.50727.4200.dll not found Unfortunately WinDbg seems to Related 2 Comments by Joao Morais on April 15, 2011 • Permalink Posted in .NET, Troubleshooting Tagged Troubleshooting, Windbg Posted by Joao Morais on April 15, 2011 https://blog.ilab8.com/2011/04/15/windbg-failed-to-load-data-access-dll-0x80004005/ Previous PostWPF - This understands the internals of the CLR and so allows us to do things like outputting managed calls stacks, dumping the managed heap etc. weblink
Join 58 other followers @chentiangemalc RT @bdsams: Apple's new Airpods...if you dont have an internet connection like on a plane, subway, etc, they can't control the volume. 4hoursago #Ilford #FP4+ #Kodak Reply Benjamin says: March 24, 2011 at 7:58 am the debugger should be able to get the correct mscordacwks.dll from the symbol server automatically --- My debugger can't download mscordacwks.dll from Can three +1/+1 counters be considered one +3/+3 counter? To create a heap index, run !bhi 0:000> !sosex.help SOSEX - Copyright 2007-2012 by Steve Johnson - http://www.stevestechspot.com/ To report bugs or offer feedback about SOSEX, please email [email protected] Quick Ref: imp source
The bitness (32-bit or 64-bit) must also match. References : http://geekswithblogs.net/.netonmymind/archive/2006/03/14/72262.aspx http://blogs.msdn.com/b/dougste/archive/2009/02/18/failed-to-load-data-access-dll-0x80004005-or-what-is-mscordacwks-dll.aspx http://epiwiki.se/tools/windbg/analyze-the-dump-file/failed-to-load-data-access-dll,-0x80004005 Friday, June 25, 2010 10:15 AM Reply | Quote Microsoft is conducting an online survey to understand your opinion of the Msdn Web site. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Let's take a closer look at the error message: ERROR: Unable to load DLL mscordacwks_x86_x86_2.0.50727.5448.dll, Win32 error 0n2 First "x86" means architecture of your debugger - if you see this message
This will be determined on your PC, so this may load a different version of SOS than present in the dump. Wednesday, April 21, 2010 7:16 AM Reply | Quote 0 Sign in to vote Hey Andy, The only way to do this right now is to install the update I mentioned Sounds totally crazy, but that's what we need to do: .load wow64exts !sw You should receive a message: Switched to 32bit mode And now check your !threads: ThreadCount: 103 UnstartedThread: 7 Failed To Load Data Access Dll Information If you are new to the PerformanceAnalysis script, please read the abstract for more information on how to interpret the results of this report.
kek says: April 13, 2015 at 12:19 pm thanks bro Reply Bret says: June 11, 2016 at 4:13 am This helped me a lot…nowhere did I find that I needed to Mscordacwks.dll Download If you would be about to use mismatching bitness of debugger to attach/start the managed process you might see the following error: --------------------------- WinDbg:6.13.0014.1618 X86 --------------------------- Could not create process OR ??? https://chentiangemalc.wordpress.com/2014/04/16/obtaining-correct-mscordacwks-dll-for-net-windbging/ Once you have it, check its file properties for the version number.
The debugger must load a version of the DAC that is the same as the version of the CLR that the managed-code application is using. Failed To Load Data Access Dll, 0x80004005 For example, you see this message in WinDBG output, when running simple commands to load modules: .loadby sos mscorwks The call to LoadLibrary(C:\Windows\Microsoft.NET\Framework\v2.0.50727\sos) failed, Win32 error 0n193 "%1 is Despite Microsoft says that we should be OK with that, I haven't found a way to open a 32-bit dump in 64-bit WinDBG even after a long play with symbols :) please find dump result & event logs Event Type: Warning Event Source: W3SVC Event Category: None Event ID: 1011 Date: 7/30/2012 Time: 12:22:00 PM User: N/A Computer: GSAUITBSS1-CN06 Description: A process
The .Net Framework versions on server and workstation differ: Workstation: 4.0.30319.18046 Server where the dump was taken: 4.0.30319.296 I copied sos.dll and mscordacwks.dll from the server to my workstation in a Copy start end module name 000007ff`26710000 000007ff`2706e000 clr (deferred) Image path: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\clr.dll ... Clr Dll Status: No Load Attempts Mscordawks is OK, SOS is OK, but then what does it mean? Failed To Find Runtime Dll (clr.dll), 0x80004005 Comments: Flavor=Retail 0:000> .reload /f mscorwks.dll 0:000> lmvm mscorwks start end module name 709f0000 70f9b000 mscorwks (private pdb symbols) D:\Debuggers_32bit\sym\mscorwks.pdb\7139B75336C24F7CAA1DC4060608770D2\mscorwks.pdb Loaded symbol image file: mscorwks.dll Image path: C:\Windows\Microsoft.NET\Framework\v2.0.50727\mscorwks.dll Image name: mscorwks.dll
It seems that WinDbg uses existing mscordacwks, but loads the corresponding version when otherwise. After loading the SOS.dll extension any command tries to load the data access dll mscordacwks. Introduction to Managed Code Managed code is executed together with the Microsoft .NET common language runtime (CLR). I've seen this when using a 32-bit debugger to analyse a dump of a WoW64 process generated with a 64-bit debugger." This article says to use !wow64exts.sw to switch to 32-bit Mscordacwks.dll Is Either Not Designed
Loading Dump File [\\XXXXXX\FooBar_121030_075015.dmp] User Mini Dump File with Full Memory: Only application data is available Comment: ' *** Procdump -ma FooBar.exe *** Manual dump' Symbol search path is: YYYYYYYYY Executable Do counters combine? Browse other questions tagged windbg dump sos or ask your own question. check over here Wednesday, April 07, 2010 11:30 PM Reply | Quote 0 Sign in to vote Still struggling with this - anyone managed to find a solution to getting hold of this dll?
asked 3 years ago viewed 4040 times active 3 years ago Blog Stack Overflow Gives Back 2016 Developers, Webmasters, and Ninjas: What’s in a Job Title? Clr Dll Load Disabled In the preceding example, notice that the version of the CLR (clr.dll) matches the version of the DAC (mscordacwks.dll): v4.0.30319. Andy Tuesday, April 06, 2010 9:16 AM Reply | Quote 0 Sign in to vote Hey Andy, The only way to do this right now is to install the update I
Reply Doug Stewart -MSFT says: April 4, 2011 at 1:12 am Greg, for Silverlight debugging, the CLR is in coreclr.dll rather than mscorwks.dll. You can also run the debugger command .cordll to control the debugger's load of mscordacwks.dll. .cordll -ve -u -l will do a verbose reload. But from time to time, these internal data structures and details of the CLR change and so it is useful to abstract the interface to the CLR that this debugger extension Unable To Find Module 'mscorwks' For 32-bit processes you should use 32-bit WinDBG, even on x64 Windows.
To debug managed code, you must load the SOS debugging extension (sos.dll) and a data access component (mscordacwks.dll). dbghelp: image 6.13.0014.1665, API 6.2.6, built Wed Dec 12 03:02:43 2012 ... Not the answer you're looking for? The debugger will also look for it in your debuggers directory provided it has been renamed in a special way (see below).
In this case of analysing a . Because having the matching mscordacwks.dll is so important for SOS.DLL to work correctly, SOS has a number of tricks up its sleeve to find it. Copy CLRDLL: Unable to get version info for 'C:\Windows\Microsoft.NET \Framework64\v4.0.30319\mscordacwks.dll', Win32 error 0n87 SYMSRV: C:\ProgramData\dbg\sym\mscordacwks_AMD64_AMD64_4.0.30319.18010.dll \5038768C95e000\mscordacwks_AMD64_AMD64_4.0.30319.18010.dll not found SYMSRV: mscordacwks_AMD64_AMD64_4.0.30319.18010.dll from http://msdl.microsoft.com/download/symbols: 570542 bytes - copied ... Going to try running the debugger on the machine itself, stand by for an update –RB84 Nov 17 '14 at 14:37 @RamonBertrand You are probably missing some dlls still
Downloads and tools Visual Studio Windows SDK Windows Driver Kit Windows Hardware Lab Kit Windows Assessment and Deployment Kit Essentials Dashboard services Debugging tools Driver samples Programs Hardware compatibility program Partner commands from sos and sosex extensions). Information DebugDiag did not detect LeakTrack.dll loaded in w3wp__AppPool_AUS_LM__PID__3276__Date__07_30_2012__Time_12_21_20PM__734__Second_Chance_Exception_E0434F4D.dmp, so no leak analysis was performed on this file. I have included the lines that are output by WinDbg when it tries to fetch the DLL from the symbol server.
This extension is shipped with .NET framework (and also indexed on Microsoft symbols server which will come in handy for other scenarios). bpsc (Deprecated. The CLR is not updated every time the .NET Framework is updated. Perfcounters. ► May (2) ► April (4) ► March (3) About Me Kate Butenko View my complete profile Picture Window template.
You cannot load 32 bit DLLs in 64 bit processes, so you can't load 32 bit SOS in 64 bit WinDbg. –Thomas Weller Nov 18 '14 at 19:30 @RamonBertrand Then, as per the error message, tell the debugger to try again: .cordll -ve -u -lAlthough we try to ensure that every build of the CLR that is released