.NET Debugging Demos Lab 1: Hang

If broken it is, fix it you should : .NET Debugging Demos - Information and setup instructions

Mon, 04 Feb 2008 12:28:35 GMT

PingBack from http://blogs.msdn.com/tess/pages/net-debugging-demos-information-and-setup-instructions.aspx

re: .NET Debugging Demos Lab 1: Hang

Justin King — Mon, 04 Feb 2008 14:28:06 GMT

Fantastic, now I've got to eagerly await part 2

Tess' Debugging Lab

Speaking of which... — Mon, 04 Feb 2008 19:12:21 GMT

My colleague Tess Ferrandez just posted this excellent lab that provides you with a sample application

Sjukt bra debuglabbar med Tess Ferrandez!

Shallow thoughts from a consultant @ Microsoft — Mon, 04 Feb 2008 21:03:11 GMT

Tess Ferrandez har skapat en serie med labbar där hon presenterar vanliga post mortem debugging scenarios.

re: .NET Debugging Demos Lab 1: Hang

Andrew Lomakin — Wed, 06 Feb 2008 12:30:27 GMT

Great post!

I'm trying to apply the knowledge shared here to some .NET dumps i have lying around to see if i can get to the bottom of the problem and i'm having quite some success in drilling down the debug info. Waiting impatiently for lab part 2 - the crash :)

2月6日链接篇： ASP.NET, ASP.NET AJAX, Visual Studio, .NET, WPF

Joycode@Ab110.com — Wed, 06 Feb 2008 20:10:17 GMT

【原文地址】 Feb 6th Links: ASP.NET, ASP.NET AJAX, Visual Studio, .NET, WPF 【原文发表日期】 Wednesday, February 06

re: .NET Debugging Demos Lab 1: Hang

Jason — Wed, 06 Feb 2008 21:00:13 GMT

Very nice!

2月6日链接篇： ASP.NET, ASP.NET AJAX, Visual Studio, .NET, WPF

ASP.NET Chinese Blogs — Fri, 08 Feb 2008 00:09:29 GMT

【原文地址】 Feb 6th Links: ASP.NET, ASP.NET AJAX, Visual Studio, .NET, WPF 【原文发表日期】 Wednesday, February 06

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ScottGu Italian — Fri, 08 Feb 2008 16:49:10 GMT

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vs2008 相关更新

曹振华 — Thu, 14 Feb 2008 04:58:37 GMT

ASP.NETMVC框架路线图更新

【原文地址】ASP.NETMVCFrameworkRoad-MapUpdate

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.NET Debugging Demos Lab 3: Memory

If broken it is, fix it you should — Fri, 15 Feb 2008 17:10:38 GMT

TGIF, almost time for the weekend... but before you leave, here is lab 3. Todays debugging puzzle will

.NET Debugging Demos

Paul Mooney — Wed, 27 Feb 2008 14:47:01 GMT

Lab 1: HangLab 2: CrashLab 3: MemoryLab 4: High CPU Hang

re: .NET Debugging Demos Lab 1: Hang

Terry Voss — Mon, 03 Mar 2008 20:13:33 GMT

I was just informed by MS tech support that my inability to debug many pages in ASP.NET VS2008 is a known bug which will be fixed in SP1 release date unknown at this time.

This is with a converted application. I have done a new application with no problems.

Can this be right? It doesn't make sense that there wouldn't be a lot of loud noise out there if everyone was having this problem.

re: .NET Debugging Demos Lab 1: Hang

Tess — Mon, 03 Mar 2008 23:42:18 GMT

I'm not exactly sure what issues you have debugging in VS 2008 so it is a bit hard to say.

re: .NET Debugging Demos Lab 1: Hang

Terry Voss — Tue, 04 Mar 2008 01:52:27 GMT

When you place a breakpoint in code and run to it it crashes VS2008 upon reaching that breakpoint, or upon stepping one or 2 lines beyond the break line. IOWs debugging can't happen in some pages of converted projects.

re: .NET Debugging Demos Lab 1: Hang

Eber Irigoyen — Tue, 04 Mar 2008 08:30:05 GMT

just catching up with the tutorial now, this is really fun and I'm learning a lot, I always wanted something like this

thank you very much for putting this together

re: .NET Debugging Demos Lab 1: Hang

Tess — Tue, 04 Mar 2008 10:09:51 GMT

Terry, can't say I know off hand what is wrong there. To be honest I haven't really worked much with debugging in VS2008 so I would probably not be the best person to ask. If the guy/gal you are working with says that it is a known issue, then I would trust that.

.NET Debugging Demos Lab 5: Crash

If broken it is, fix it you should — Wed, 05 Mar 2008 13:20:58 GMT

Last week I published a debugging challenge for Lab 5. It was really interesting to see the results and

.NET Debugging Demos Lab5: Crash - Review

If broken it is, fix it you should — Wed, 05 Mar 2008 13:22:24 GMT

Since I already posted a challenge for this lab earlier I didn't want to wait too long with publishing

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Mutamblog — Sun, 16 Mar 2008 04:32:08 GMT

Links 6/Fev: ASP.NET, ASP.NET AJAX, Visual Studio, .NET, WPF

re: .NET Debugging Demos Lab 1: Hang

Chirag Shah — Mon, 24 Mar 2008 15:21:18 GMT

Hi i was tryin to implement the lab one,

as i open the dump file in win debugger i am not able to analyse as per the stpes provided in the article above

N e help would b appreciated.

Regards

re: .NET Debugging Demos Lab 1: Hang

Tess — Tue, 25 Mar 2008 01:49:10 GMT

could you be a little bit more specific, what parts are failing?

.NET Debugging Demos Lab 7: Memory Leak - Review

If broken it is, fix it you should — Thu, 03 Apr 2008 15:33:37 GMT

We have reached the end of the .NET Debugging Demos series. And we are going to end it with a review

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If broken it is, fix it you should — Fri, 11 Apr 2008 14:24:31 GMT

The purpose of my presentation was to show some common pitfalls and of course to show off windbg and

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.NET调试实例-实验1:死锁 (原创翻译)

Justin — Tue, 08 Jul 2008 16:09:14 GMT

-原文地址：http://blogs.msdn.com/tess/archive/2008/02/04/net-debugging-demos-lab-1-hang.aspx

译者注释

(Just...

re: .NET Debugging Demos Lab 1: Hang

Michal — Tue, 15 Jul 2008 17:28:21 GMT

First thank you for this informative and educationg blog!

I have followed this lab but did not get any hang. All the browsers have returned finally and when looking at the hang dump there were no deadlocks.

Also, using the tinyget.exe to cause a hang,

I took a hang dump during the process's run but when opening the dump, the winDBG always get stack when trying to view certain thread's stack (always the same threads).

The cpu utilization is ~0 both for w3wp and tinyget process.

Any ideas?

Thank you, Michal

re: .NET Debugging Demos Lab 1: Hang

Tess — Mon, 04 Aug 2008 22:41:44 GMT

the cpu utilization should be pretty low, and the requests should eventually return (after 5 seconds) so that is normal... you need to get the memory dumps while the requests are still executing to see why they are slow...

Troubleshooting a performance issue with Failed Request Tracing and appcmd in IIS7

If broken it is, fix it you should — Tue, 19 Aug 2008 15:04:08 GMT

I know I'm a little late in the game, but I decided that after vacation it was finally time for me to

re: .NET Debugging Demos Lab 1: Hang

James — Tue, 16 Sep 2008 21:03:47 GMT

Hey Tess,

When I run adplus -hang -pn w3wp.exe -quiet, the w3wp.exe memory (from task manager) jumps as the dump occurs. For instance, the memory starts at around 48Mb and within a matter of 10 seconds after running adplus it goes up to 180Mb. Is that supposed to happen? And if so, doesn't that mean a lot of "stuff" is being added that wasn't there before (180mb after dump - 48mb before dump = 132Mb of stuff)?

I should add, that the Virtual Memory stays at 48Mb...

Thanks,

James

btw - You're my memory debugging hero!

re: .NET Debugging Demos Lab 1: Hang

Tess — Wed, 17 Sep 2008 10:00:14 GMT

James,

It adds all the pages your process touches to the dump, that is why you see a jump in taskmanager (workingset) as it loads them in to the process. It doesnt really add any more virtual bytes or private bytes...

Using VSTS Test and Profilers to troubleshoot performance issues (low cpu hang)

If broken it is, fix it you should — Thu, 02 Oct 2008 10:51:33 GMT

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.NET Hang: Analyzing Debug Diag output

If broken it is, fix it you should — Fri, 23 Jan 2009 13:00:10 GMT

Earlier this week I got an email from a reader who had a hang in an application and sent in some Debug

re: .NET Debugging Demos Lab 1: Hang

Jason Lill — Thu, 19 Feb 2009 03:41:36 GMT

I am having a problem examining the ,net call stack. when I run the ~* e !clrstack command I get the message "No export clrstack found"

re: .NET Debugging Demos Lab 1: Hang

Adam — Wed, 29 Apr 2009 18:44:24 GMT

No matter what I run to get an XP virtual machine to serve up more than 2 requests, I cannot get IIS to handle these requests concurrently. I confirmed in regedit that MaxConnections* are both set to 10; I even tried "adsutil set w3svc/MaxConnections 40" that was mentioned elsewhere (http://www.codinghorror.com/blog/archives/000329.html). I have restarted IIS and the virtual machine itself, but multiple requests to FeaturedProducts.aspx always get queued one after another (with start time incrementing by the delay for each one). Is there something I am missing in this setup process to get XP less crippled for development work?

re: .NET Debugging Demos Lab 1: Hang

Tess — Tue, 05 May 2009 10:37:09 GMT

It should work just fine on XP. Not sure if w3svc/MaxConnections would really have an effect on this though... The regfile sets up a global setting on your machine that allows you to make more than the normal 2 outgoing connections.

re: .NET Debugging Demos Lab 1: Hang

Scott — Thu, 23 Jul 2009 02:14:32 GMT

Same results as Adam. I'm not sure how to refresh mulitple IE instances simultaneously, so I used Refresh All with 5 tabs on a single IE browser. Start times were approx 5 seconds apart and execution times were all approx 5 seconds - the opposite of expected. XP SP2; .NET 2.0; Confirmed registry entries and both correctly set to 10. I proceeded with the lab using a dump generated while tinyget was running and saw expected blocking results.

Also had to load sos differently, perhaps since I'm not using 3.5 on this machine.

re: .NET Debugging Demos Lab 1: Hang

Tess — Wed, 05 Aug 2009 22:50:13 GMT

Scott,

I am not sure why you are seeing the results you are seeing, they seem to indicate that the reg. settigs are still not correct, 3.5 or not should not make a difference...

re: .NET Debugging Demos Lab 1: Hang

Mike — Mon, 17 Aug 2009 21:20:12 GMT

I kkep getting an error when tryuing to run tinyget against the website. I can browse to it fine. If I use the -t switch it says: "You do not have permission to view this directory or pageusing the credentials taht you supplied becuase your web browser is sending a WWW-Authenticate header fileds taht the webserver is not configured to accept" Thats using Integrated security. If I set it to anonymous I just get "You are not authorized to view this page".

So Im not abel to run tinyget to stress test.

Unfortunately after alot searching I could not find anything related to this message when using Tinyget . Hoping that i may find the anser here

re: .NET Debugging Demos Lab 1: Hang

Pyroxene — Mon, 17 Aug 2009 22:30:01 GMT

@Jason:

I also got the message 'No export clrstack found' after running ~* e !clrstack

However, after reading the steps again, it occurred to me that I forgot to load SOS. After doing this the results were as expected.

re: .NET Debugging Demos Lab 1: Hang

Albert Lee — Tue, 15 Sep 2009 19:33:20 GMT

Great works.

I will read all of your labs.

re: .NET Debugging Demos Lab 1: Hang

Jonathan — Sat, 07 Nov 2009 20:48:38 GMT

For some reason when I run the app in the browser the w3wp.exe process doesn't show up. If I run in TinyGet it says "cannot send data, because connection is closed" and "Socket Error on Receive", but I believe that just may be a firewall thing. I wonder if I'm just missing something. Thanks for the labs!

re: .NET Debugging Demos Lab 1: Hang

Chris — Thu, 12 Nov 2009 07:30:26 GMT

Likewise, I cannot get my browser instances to load concurrently. Is there a missing step, such as logoff/logon? Also, I am using IE8 and Win7 RTM - does that change anything? Thanks.

re: .NET Debugging Demos Lab 1: Hang

Tess — Thu, 12 Nov 2009 10:10:46 GMT

I had the issue with the browser instances not loading concurrently as well and i believe that is because of changes in IE8 and how browsers share the same space.

Tinyget should still work and does for me on Win7, and if you want to see two concurrent requests in the browser you can start one browser normally and then one in private mode.