An unhandled exception occurred and the process was terminated.
StackTrace: at () in C:\projects\ThrowException\WebCrash\WebCrash\Controllers\HomeController.cs:line 42Īt .b_1_0(Object x) in C:\projects\ThrowException\WebCrash\WebCrash\Controllers\HomeController.cs:line 25Īt _Context(Object state)Īt (ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)Īt (ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)Īt .()Īt ()Īt System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()Īs you can see, my callback function throws an access violation, and it causes the process to crash! But, because it’s happening outside of the HTTP request context, it doesn’t even need to be as severe as an access violation to cause the same behavior. In this example, I have created a web application and have an unhandled exception that I know will cause the process to terminate: An unhandled exception occurred and the process was terminated.Įxception: System.AccessViolationException NET runtime is terminating the process since it was not handled.įor a web application that has crashed, you will see similar errors in the event viewer. The second exception demonstrates that the. Since it wasn’t handled and logged anywhere, it lands in the event viewer with the appropriate call stack.
Draftsight 2016 crashing windows#
You can configure monitors in Retrace to watch your Windows Event logs and alert you whenever a crash is found.įrom the over-simplified example above with a console app, you can see the events around our crash in the Windows Event Viewer: Retrace can ingest your Windows Event logs that would contain this information. The main benefit is the communication with Microsoft, which makes it more of a Windows tool and it won’t be entirely useful for determining why your application has crashed.įortunately, you can monitor crashes with Retrace’s log management capabilities. The default configuration is difficult to customize, which is why other tools, such as DebugDiag are generally recommended. It uses some rules to collect crash dumps from faulting processes and can check for solutions, and send problem reports back to Microsoft. They also get logged to Windows Events and can be seen in the Windows Event Viewer.Ībout Windows Error Reporting: WER is built into all versions of Windows from 2008 and on. Unfortunately, you may have identified a w3wp crash by way of upset users reporting that your web application isn’t working, or is slow (due to excessive app pool recycles).Īll application crashes within Windows get reported to the Windows Error Reporting (WER) service.
Draftsight 2016 crashing code#
If your app has any dependencies on unmanaged code, unhandled exceptions in that code can just as easily cause the process to terminate. Note that there are exception types which can cause the worker process to crash, even when thrown in the context of an HTTP request: stack overflow, access violation, out of memory, etc.
NET 4.5 this was a common occurrence in using async/await patterns but has thankfully been fixed since patched to behave the same as the HTTP Request scenario.
However, unhandled exceptions occurring in contexts not part of the HTTP Request will trigger the process to end: this could occur on a timer thread, background thread, or a callback function. The will not cause the worker process to end. If the exception is thrown in the context of an HTTP Request, even if you don’t handle it, that request is wrapped and will catch all unhandled exceptions as part of the HTTP Exception handling for the request. So what happens if an unhandled exception occurs in an ASP.NET application? NET console application and do nothing other than throw an exception in Main(), then the process will terminate unexpectedly. Any process running in Windows can be terminated due to unexpected errors.
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