Welcome to MSDN Blogs Sign in | Join | Help

Browse by Tags

All Tags » Debugging   (RSS)

More debugging videos and a Resource List from my TechED and Oredev sessions on debugging asp.net applications

Posted Wednesday, November 18, 2009 4:49 PM by Tess
I just returned from Oredev and TechED EMEA , both conferences were very interesting in their own special ways.  TechED was of course bigger with a lot of good sessions on my specific area while Oredev is a bit more small and cozy, and a way to meet Read More...
1 Comments
Filed under: ,

WOHOO!!!, Debug Diag 64bit is finally released

Posted Thursday, October 29, 2009 12:49 PM by Tess
For all of you who have been asking me if there is a 64bit version of Debug Diag (used to debug 64 bit processes), I am happy to say that yes, Debug Diag 1.1 64bit is now released. You can download it here: http://www.microsoft.com/DOWNLOADS/details.aspx?FamilyID=28bd5941-c458-46f1-b24d-f60151d875a3&displaylang=en#filelist Read More...
6 Comments

.NET Hang Case study: The danger of locking on strings

Posted Monday, October 19, 2009 3:51 PM by Tess
I had an interesting case today where an asp.net app was stuck in a true deadlock. In other words two threads were both waiting for resources that the other thread owned. The scenario in these cases usually goes something like this: FunctionA (locks on Read More...
6 Comments

Debug Diag: mscorwks.dll is responsible for 372.46 MBytes worth of outstanding allocations

Posted Friday, October 09, 2009 2:56 PM by Tess
I got an email today on an issue that I think is pretty common when you try to memory leak analysis on a dump with debug diag . They had set up a leak rule in debug diag to monitor for leaks and then ran the memory analysis on it to see what was leaking Read More...
3 Comments

Finding memory leaks with ANTS Memory Profiler

Posted Wednesday, October 07, 2009 1:05 PM by Tess
I was out looking for some sample scripts for tinyget and ran across this ANTS Memory Profiler review where Scott Seely has tested it out on some of my debugging labs . I haven’t had the time and/or opportunity to test it out myself but since many people Read More...
2 Comments

ASP.NET Case Study: Hang when loading assemblies

Posted Tuesday, September 22, 2009 3:03 PM by Tess
The other day I came across an issue where an ASP.NET site stopped responding and didn’t start serving requests again until the W3WP.exe process was restarted. We grabbed some memory dumps with debug diag before restarting the process to see what was Read More...
3 Comments

How can I make you learn and benefit from my Blog? and how can I learn from you?

Posted Monday, August 17, 2009 12:43 PM by Tess
Summer is almost over and a new season of heavy work is beginning.  I wanted to take this opportunity to start on a new page and make sure that I’m spending my cycles doing the right things.  I’ve been blogging for almost 3 years now and throughout Read More...
58 Comments
Filed under: ,

Why do I see ExecutionEngineException, StackOverflowException and OutOfMemoryException on the heap when debugging .net applications?

Posted Monday, August 10, 2009 2:30 PM by Tess
I came back from a long vacation today and I’ve finally caught up with enough emails to do something useful with my day. As I scanned through my blog email bucket I noticed that I had a lot of emails relating to my last post on dumping .net exceptions Read More...
5 Comments

Visual Studio 2010 .net debugging resource

Posted Thursday, June 18, 2009 11:31 AM by Tess
If my post on dump debugging in VS 2010 piqued your interest, here is a list of a number of other new debugging features coming up in 2010 http://blogs.msdn.com/ms_joc/archive/2009/05/27/dev10-beta1-free-at-last.aspx I for one will be following the blog Read More...
3 Comments
Filed under: ,

First look at debugging .NET 4.0 dumps in Visual Studio 2010

Posted Tuesday, June 16, 2009 12:01 PM by Tess
I know that for a lot of you this is a bit far into the future, but I thought it would be nice to run through a few of my lab scenarios to show off some of the new features in Visual Studio 2010.  I am sure that I will miss a bunch of cool features Read More...
11 Comments

Debug Diag script for troubleshooting .NET 2.0 Memory leaks

Posted Tuesday, May 12, 2009 11:53 AM by Tess
I have put together a quick and dirty debug diag script for troubleshooting .net memory leaks. (attached to this post) The reason I put it together was mainly to show how you can create your own debug diag scripts but feel free to use it to troubleshoot Read More...
20 Comments
Attachment(s): DotNetMemoryAnalysis.zip

Neat .NET 2.0 StackViewer to troubleshoot hangs/performance issues

Posted Friday, May 08, 2009 3:54 PM by Tess
Bret wrote a post about Managed Stack Explorer , a really nice tool that was developed in 2006 but since then seems to have been forgotten. It’s excellent if you want to troubleshoot hangs/performance issues in a process but don’t want to go through the Read More...
12 Comments

Unable to load DLL ‘dllname.dll’: A dynamic link library (DLL) initialization routine failed. 0x8007045A

Posted Wednesday, April 29, 2009 1:33 PM by Tess
I recently got an email with the following question: “Can you give me some very helpful hints with this one ? I am struggling with the following error in an asp.net application. Exception Message: Internal Error : Unable to load DLL 'RdbNet.dll': A dynamic Read More...
11 Comments
Filed under: ,

Show me the memory: Tool for visualizing virtual memory usage and GC heap usage.

Posted Thursday, April 23, 2009 10:43 AM by Tess
A colleague of mine, John Allen, created an awesome tool way back that displays memory usage in a process very nicely. I use screenshots from it from time to time in presentations or posts but unfortunately that tool is not publicly available. Since lots Read More...
17 Comments
Attachment(s): MemoryDisplay32Bit.zip

.NET Exceptions: Quick WinDbg/SOS tip on how to dump all the .NET exceptions on the heap

Posted Thursday, April 16, 2009 1:11 PM by Tess
Since a .net exception is a .NET object like any other, it gets stored on the GC heap when you (or some code you call) calls new XXException().  This means that if you have a memory dump of a process you can dump out all the recent exceptions that Read More...
10 Comments
More Posts Next page »
 
Page view tracker