.NET Debugging Demos Lab5: Crash - Review

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

Wed, 05 Mar 2008 13:30:16 GMT

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

Link Listing - March 5, 2008

Christopher Steen — Thu, 06 Mar 2008 10:03:18 GMT

Sharepoint No VSE WSS for VS 2008 Until Summer [Via: Tariq ] WPF Podder v2 has been released! [Via:...

re: .NET Debugging Demos Lab5: Crash - Review

Eber Irigoyen — Fri, 28 Mar 2008 21:24:27 GMT

I'm facing an issue with a StackOverflow problem, I get the dump, but when I load it it says "unable to verify the checksum for System.Data.ni.dll" or something similar, no matter what I do, I've tried updating to .NET 2 SP1, regenerating the native images, I've made sure it reads the correct files (filemon), I've ran windbg directly from the server, etc

The weird thing is that this only happens on the server though, we actually have reproduced the issue in two servers, but we cannot get the same error on the developer machines

these are server 2003 with service pack 2 that have .NET 2, 3 and 3.5 installed

when I run the windbg commands everything points to an issue in System.Data.dll, but since the symbols for that file are not loaded I don't get a lot of information, I get a bunch of calls to system.data.ni.dll -

how can I get the right symbols file?

any other clues you might have?

thanks for all these tutorials Tess, I really appreciate all your work

re: .NET Debugging Demos Lab5: Crash - Review

Tess — Fri, 28 Mar 2008 22:52:41 GMT

There are no symbols for the native images (.ni) and you dont really need them. You will get the calls on the stack if you use !clrstack.

Tess

re: .NET Debugging Demos Lab5: Crash - Review

Eber Irigoyen — Sat, 29 Mar 2008 19:54:26 GMT

this is the output running kb and !clrstack

0:026> kb 2000

ChildEBP RetAddr Args to Child

072d3664 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x114f8b

072d40c0 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072d4b1c 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072d5578 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072d5fd4 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072d6a30 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072d748c 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072d7ee8 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072d8944 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072d93a0 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072d9dfc 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072da858 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072db2b4 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072dbd10 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072dc76c 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072dd1c8 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072ddc24 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072de680 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072df0dc 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072dfb38 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072e0594 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072e0ff0 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072e1a4c 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072e24a8 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072e2f04 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072e3960 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072e43bc 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072e4e18 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072e5874 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072e62d0 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072e6d2c 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072e7788 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072e81e4 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072e8c40 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072e969c 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072ea0f8 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072eab54 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072eb5b0 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072ec00c 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072eca68 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072ed4c4 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072edf20 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072ee97c 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072ef3d8 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072efe34 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072f0890 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072f12ec 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072f1d48 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072f27a4 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072f3200 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072f3c5c 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072f46b8 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072f5114 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072f5b70 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072f65cc 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072f7028 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072f7a84 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072f84e0 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072f8f3c 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072f9998 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072fa3f4 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072fae50 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072fb8ac 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072fc308 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072fcd64 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072fd7c0 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072fe21c 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072fec78 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

072ff6d4 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

07300130 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

07300b8c 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

073015e8 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

07302044 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

07302aa0 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

073034fc 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

07303f58 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

073049b4 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

07305410 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

07305e6c 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

073068c8 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

07307324 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

07307d80 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

073087dc 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

07309238 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

07309c94 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

0730a6f0 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

0730b14c 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

0730bba8 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

0730c604 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

0730d060 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

0730dabc 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

0730e518 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

0730ef84 652857b0 00000000 00000200 18612264 System_Data_ni!_load_config_used+0x1140e0

0730efd0 65218285 00000000 186ed6b4 000000bc System_Data_ni!_load_config_used+0x1140e0

0730f030 651feb12 00000092 14307e20 1c6b0de4 System_Data_ni!_load_config_used+0xa6bb5

0730f164 79e880df 01bf1f0e 0730f198 84adef90 System_Data_ni!_load_config_used+0x8d442

0730f124 081684e7 0730f198 062b43e0 00000001 mscorwks!PreStubWorker+0x139

*** WARNING: Unable to verify checksum for System.Web.RegularExpressions.ni.dll

WARNING: Frame IP not in any known module. Following frames may be wrong.

0730f1b0 66f12980 1c0579b0 18312720 6628efd2 0x81684e7

00000000 00000000 00000000 00000000 00000000 System_Web_RegularExpressions_ni+0x12980

0:026> !clrstack

OS Thread Id: 0x1740 (26)

ESP EIP

072d2c3c 6528665b System.Data.BinaryNode.EvalBinaryOp(Int32, System.Data.ExpressionNode, System.Data.ExpressionNode, System.Data.DataRow, System.Data.DataRowVersion, Int32[])

that's all BCL, where do I go from there?

re: .NET Debugging Demos Lab5: Crash - Review

Eber Irigoyen — Sat, 29 Mar 2008 20:47:14 GMT

the windows event I get is this:

EventType clr20r3, P1 w3wp.exe, P2 6.0.3790.3959, P3 45d6968e, P4 system.data, P5 2.0.0.0, P6 471ebf27, P7 1840, P8 0, P9 system.stackoverflowexception, P10 NIL.

and this:

A process serving application pool 'ProcessName' suffered a fatal communication error with the World Wide Web Publishing Service. The process id was '5664'. The data field contains the error number.

8007006d

re: .NET Debugging Demos Lab5: Crash - Review

Tess — Sun, 30 Mar 2008 00:28:11 GMT

Eber, the stackoverflow you are getting with the System.Data.BinaryNode.EvalBinaryOp is a known issue that occurrs when you have an extremely long filter i.e. condtionx and conditiony and conditionz etc.

basically for each and or or it goes into a separate eval of the left site and eval of the right site recursively, so that is why you get a stackoverflow. Run !dso to see the condition and look to see if it is meant to be like that or if you have some logic issues that cause the filter exception to be set like that inadvertedly. I don't have access to my tools at the moment but when I get back into the office I can write a post describing why it happens and more details about it.

.NET Case Study: Stackoverflow Exception when using a complex rowfilter

If broken it is, fix it you should — Mon, 31 Mar 2008 12:02:50 GMT

When you use very complex Rowfilters or expressions on datasets or datatables you may end up getting

re: .NET Debugging Demos Lab5: Crash - Review

Tess — Mon, 31 Mar 2008 12:06:20 GMT

Eber, I just wrote a post about the issue on http://blogs.msdn.com/tess/archive/2008/03/31/net-case-study-stackoverflow-exception-when-using-a-complex-rowfilter.aspx if you want to have a look

re: .NET Debugging Demos Lab5: Crash - Review

Eber Irigoyen — Mon, 31 Mar 2008 18:19:49 GMT

thanks Tess, the weird thing is that it only happens on the server, not on any of the development machines

admittedly we use some complex expressions

I'll check the new article, thanks a lot

re: .NET Debugging Demos Lab5: Crash - Review

H Debugger — Fri, 25 Jul 2008 06:33:53 GMT

I cannot run 0:025> g, Why?

Why should you create the full dump?

Thanks

re: .NET Debugging Demos Lab5: Crash - Review

H Debugger — Fri, 25 Jul 2008 06:35:59 GMT

I did not follow the stpes "Examine the log file to find out what happened just prior to the crash

Q: What events occurred just prior to the crash?

Could you explain it with more details?

re: .NET Debugging Demos Lab5: Crash - Review

Tess — Mon, 04 Aug 2008 22:58:59 GMT

H Debugger,

0:025> g

is something you would find in the log file created by adplus...

as a sidenote: the 0:025> meant that it was on thread 25, the g means go... in a dump you can't go anymore so you can't run g at the prompt unfortunately...

____________________________

regarding "I did not follow the stpes "Examine the log file to find out what happened just prior to the crash

Q: What events occurred just prior to the crash?

During the time you are attached in crash mode, the debugger will keep spitting out debugging info to the log file based on your adplus configuration. This means that at the time of the crash you can look in the log file and have a look at what debugging info it had spit out just prior to the crash, in order to see what events led up to the crash...

re: .NET Debugging Demos Lab5: Crash - Review

Nizar — Tue, 26 Aug 2008 11:29:24 GMT

I think there could be an infinite loop like:

private void function_name(Leave_Application_Table lat)

{

function_name();

}

re: .NET Debugging Demos Lab5: Crash - Review

Tony Wu — Thu, 09 Oct 2008 17:09:09 GMT

------------------------------------------------------------------------------------

unfortunately we also got an exception in WriteToLog when actually writing to the log (for those of you interested, you can find these exceptions with !dso and the reason we get an exception in WriteToLog is because we (the w3wp.exe process) don't have access to write to c:\log.txt.

----------------------------------------------------------------------------------------

Unfortunately,I can not reproduce the bug.Because the ASPNET account has access to write to the c:\logtxt.:((

re: .NET Debugging Demos Lab5: Crash - Review

Tess — Thu, 09 Oct 2008 18:11:45 GMT

you can just switch the path to a folder that the ASPNET account doesn't have access to. Typically it shouldn't have access to c:\ though...

re: .NET Debugging Demos Lab5: Crash - Review

Stanislav Dvoychenko — Mon, 13 Oct 2008 22:46:04 GMT

It might be an idea to change path in the lab to something like @"ct:\log.txt".

Exception will be: System.NotSupportedException

Message: The given path's format is not supported.

In my case I'm using Vista Home for labs (just being a nerd and Vista dummy) and setup the BuggyBits to run under Local System. So had to look into the walkthrough to see what actually is expected to be wrong. Missed the thrill :).

Debug入门之旅-StackoverFlow exception的调试

飞天舞者 — Mon, 23 Feb 2009 05:13:19 GMT

Debug入门之旅-StackoverFlow exception的调试

re: .NET Debugging Demos Lab5: Crash - Review

Loek — Tue, 14 Jul 2009 17:05:49 GMT

You rock :) I was ready to start pounding my head into a brick wall over that 'unknown exception' :)