Digging into a bug in the .NET ARM64 runtime, learning about dispatch stubs, and using that knowledge to diagnose a NullReferenceException.
![](https://minidump.net/images/an-unconventional-way-of-investigating-a-nullreferenceexception-5628cca01d6a-1.webp)
InvalidProgramException
, caused by a bug in the Datadog profiler, from a memory dump sent by a customer. This is the last part of the investigation, about figuring out what is wrong with the IL code.