Debugging DotNet app Debugging DotNet app with Windbg + SOSwith Windbg + SOS

WinsonWinson

Why?Why?

Crash dump analysisCrash dump analysis

CLR internalCLR internal

Pre-requirement: download & installing Pre-requirement: download & installing WinDbg from MSDNWinDbg from MSDN

Microsoft Office PowerPoint 2007 Present

http://msdn.microsoft.com/en-us/magazine/cc163791.aspx

Microsoft Word Document

C:\Program Files\Debugging Tools for Windows (x86)C:\Program Files\Debugging Tools for Windows (x86)

C:\Windows\Microsoft.NET\Framework\v2.0.50727C:\Windows\Microsoft.NET\Framework\v2.0.50727 mscordacwks.dll mscorwks.dll SOS.dllmscordacwks.dll mscorwks.dll SOS.dll

Sample appSample app

srv*c:\symbols*http://msdl.microsoft.com/download/symbols

Start running target appStart running target app

The code has console.readkey(), so could keep in The code has console.readkey(), so could keep in memorymemory

Using “start without debugging”Using “start without debugging”

Using “Attach to running process”Using “Attach to running process”

Don’t know why I can’t use “open executable…”. In my Don’t know why I can’t use “open executable…”. In my testing only “attach..” could load sos.testing only “attach..” could load sos.

Using command “.load sos”

!sos.help!help funcname

!dumpheap

!dumpheap –type Program

!dumpobj 01359be0

VideoVideo

http://channel9.msdn.com/blogs/egibson/msdn-simulcashttp://channel9.msdn.com/blogs/egibson/msdn-simulcast-techniques-in-advanced-net-debugging-with-john-robbit-techniques-in-advanced-net-debugging-with-john-robbins-part-1-of-3ns-part-1-of-3

LinksLinks

http://blogs.msdn.com/b/tess/http://blogs.msdn.com/b/tess/

http://www.codeproject.com/KB/cs/net_type_internals.ashttp://www.codeproject.com/KB/cs/net_type_internals.aspxpx

http://blogs.msdn.com/b/dougste/archive/2008/08/08/a-bihttp://blogs.msdn.com/b/dougste/archive/2008/08/08/a-big-list-of-debugging-resources.aspxg-list-of-debugging-resources.aspx

http://www.microsoft.com/download/en/details.aspx?id=2http://www.microsoft.com/download/en/details.aspx?id=21255 1255 Psscor Managed-Code Debugging Extension foPsscor Managed-Code Debugging Extension for WinDbgr WinDbg

http://blogs.msdn.com/b/tess/archive/2010/03/01/nehttp://blogs.msdn.com/b/tess/archive/2010/03/01/new-commands-in-sos-for-net-4-0-part-1.aspxw-commands-in-sos-for-net-4-0-part-1.aspx

http://blogs.msdn.com/b/tom/http://blogs.msdn.com/b/tom/