How to make C# application crash

Question

I want to test if my application crash dump can be debugged. But firstly, I need to generate a crash dump of my application. I\'m using C# to code my app, and have tried wit

Answer 1

A surefire way to do it is as follows:

ThreadPool.QueueUserWorkItem(new WaitCallback(ignored => 
{
   throw new Exception();
}));

All the others can be handled by the top level ApplicationDomain.OnUnhandledException and the like.

This one will kill it dead (assuming .NET 2.0+, and not using 'legacyUnhandledExceptionPolicy': http://msdn.microsoft.com/en-us/library/ms228965.aspx).

Answer 2

Another option is to call

System.Environment.FailFast("Error happened")

Answer 3

None of the answers crashed my app the way I was looking for. So here is the approach that worked for me.

    private void Form1_Load(object sender, EventArgs e)
    {
        object p = 0;
        IntPtr pnt = (IntPtr)0x123456789;
        Marshal.StructureToPtr(p, pnt, false);
    }

Answer 4

For C# in Unity3D

There is UnityEngine.Diagnostics.Utils.ForceCrash (in Unity 2018.3)

This can be used with one of the following ForcedCrashCategory enum parameter:

AccessViolation

Cause a crash by performing an invalid memory access.The invalid memory access is performed on each platform as follows:

FatalError

Cause a crash using Unity's native fatal error implementation.

Abort

Cause a crash by calling the abort() function.

PureVirtualFunction

Cause a crash by calling a pure virtual function to raise an exception.

---

For older versions of Unity:

UnityEngine.Application.ForceCrash(int mode)

For even older versions (Unity 5):

UnityEngine.Application.CommitSuicide(int mode)

From my experience, mode 0 causes a "unity handled" crash (where the Unity crash dialog appears), and mode 2 causes a "hard" crash where the Windows error dialog appears.

This seems consistent with this post by Smilediver on mode:

0 - will simulate crash, 1 - will simulate a fatal error that Unity has caught, 2 - will call abort().

(These methods are not documented as they were intended for Unity's internal use. They may also be marked [Obsolete] depending on your Unity version.)

Answer 5

StackOverflowException is a badass:

void PerformOverflow()
{
  PerformOverflow();
}

Usage:

PerformOverflow();

Answer 6

  public void Loop()
  {
      Loop();
  }
  //call this
  Loop();