Comment Feed for Channel 9 - Defrag Tools: #25 - WinDbg - Events http://media.ch9.ms/ch9/79b6/4629f48e-aba4-400c-a1e0-6604f2fc79b6/DefragTools25_220.jpg Channel 9 - Defrag Tools: #25 - WinDbg - Events In this episode of Defrag Tools, Andrew Richards, Chad Beeder and Larry Larsen continue looking at the Debugging Tools for Windows (in particular WinDbg). WinDbg is a debugger that supports user mode debugging of a process, or kernel mode debugging of a computer. This installment goes over the commands used to diagnose an Event hang in a user mode application. We talk about single and multiple event hangs, automatic and manual events, waitable object handles and common design patterns that you will encounter. We use these commands: ~*k ~*kv ~ ~~[TID]s dp <addr> !handle !handle <handle> <mask> .dumpdebug !uniqstack !findstack <text> Make sure you watch Defrag Tools Episode #1 and Defrag Tools Episode #23 for instructions on how to get the Debugging Tools for Windows and how to set the required environment variables for symbol and source code resolution. Resources:Synchronization FunctionsSysinternals WinObj Timeline:[00:00] - Event objects[03:56] - Waitable objects and Design Patterns[08:00] - Handles[10:52] - x64/x86/ARM calling conventions and 32/64bit addressing[14:10] - WaitForSingleObject with a single Auto-Reset Event[14:55] - !handle[16:02] - .dumpdebug -- MiniDumpWithHandleData[16:36] - !handle <handle> <mask>[19:48] - Sysinternals WinObj[24:14] - WaitForMultipleObjects with multiple Thread Handles[30:00] - Work and Quit Event Design Pattern[33:45] - WaitForMultipleObjects with multiple Event Handles[38:52] - Windows Explorer example[44:50] - Process Explorer also shows Handles (Ctrl-H) en Sun, 26 May 2013 05:13:39 GMT Sun, 26 May 2013 05:13:39 GMT Rev9 Re: Defrag Tools: #25 - WinDbg - Events Excellent video. The content really reiterates and compliment concepts in the new Windows internal books. Great stuff... what do I need 4 years of Univ for when I got you guys.

posted by dcrearer

]]> http://channel9.msdn.com/Shows/Defrag-Tools/Defrag-Tools-25-WinDbg-Events#c634950768441946631 Tue, 29 Jan 2013 17:20:44 GMT http://channel9.msdn.com/Shows/Defrag-Tools/Defrag-Tools-25-WinDbg-Events#c634950768441946631 dcrearer Re: Defrag Tools: #25 - WinDbg - Events @dcrearer: LOL!

posted by windev

]]> http://channel9.msdn.com/Shows/Defrag-Tools/Defrag-Tools-25-WinDbg-Events#c634950821694463433 Tue, 29 Jan 2013 18:49:29 GMT http://channel9.msdn.com/Shows/Defrag-Tools/Defrag-Tools-25-WinDbg-Events#c634950821694463433 windev