Steps to Reproduce

1. Code

using System;

namespace Test
{
  class MainClass
  {
    public static void Main(string[] args)
    {
      throw new Exception("blabla");
    }
  }
}

2. Run:
   MONO_DEBUG=suspend-on-unhandled mono ./Test.exe

Current Behavior

Unhandled Exception:
System.Exception: blabla
at Test.MainClass.Main (System.String[] args) [0x00001] in <36e3bc63485340bfbb0ade4f561e1edc>:0
[ERROR] FATAL UNHANDLED EXCEPTION: System.Exception: blabla
at Test.MainClass.Main (System.String[] args) [0x00001] in <36e3bc63485340bfbb0ade4f561e1edc>:0

and then mono process ends.

Expected Behavior

mono process should suspend so I can attach to it for example with gdb.

On which platforms did you notice this

[ ] macOS
[*] Linux
[ ] Windows

Version Used:

Mono JIT compiler version 6.0.0.327 (tarball Thu Aug 29 21:19:42 UTC 2019)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
TLS: __thread
SIGSEGV: altstack
Notifications: epoll
Architecture: amd64
Disabled: none
Misc: softdebug
Interpreter: yes
LLVM: yes(600)
Suspend: hybrid
GC: sgen (concurrent by default)