Editor Crash - "Got a SIGSEGV while executing native code"

Unity Engine
1

Hello,

I’ve begun receiving errors recently after installing the NodeCavas assets from the asset store and integrating it into my project. I noticed that the editor crash typically happens if I save a script change, and tabbing back into Unity for a rebuild. This happens more often than not if the Node Canvas window is open.

Here’s the stacktrace:

Reloading assemblies after forced synchronous recompile.
Begin MonoManager ReloadAssembly
Stacktrace:

  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) UnityEngine.Coroutine.ReleaseCoroutine (intptr) [0x00007] in <6cd989684d0c46e58e0ce6f2dfd9ac5c>:0
  at UnityEngine.Coroutine.Finalize () [0x00008] in <6cd989684d0c46e58e0ce6f2dfd9ac5c>:0
  at (wrapper runtime-invoke) object.runtime_invoke_void__this__ (object,intptr,intptr,intptr) [0x00020] in <695d1cc93cca45069c528c15c9fdd749>:0

=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================

This was initially happening in Unity 2020.2.2f1 and still happening in 2021.1.0f1. It’s a decently size project, and as I mentioned, it hasn’t appeared before installing the most recent version of NodeCanvas, which I’ve used in the past with no issue. I’ve contacted them via email as well.

I’ve submitted a Unity bug report, Case #: 1325745

2

I believe I’ve discovered the problem: There were public Coroutines that NodeCanvas were attempting to expose in the inspector. After making them private, the crash has stopped.

3

We are running into the same issue. Can you indicate where in NodeCanvas you found the issue so we can affect repairs as well?

4

It wasn’t specifically “in” NodeCanvas, but rather, we made custom nodes that had public coroutines. The error was resolved by making sure they weren’t visible/rendered to the inspector.