Search Issue Tracker

Third Party Issue

Votes

0

Found in

2020.3

2021.2

2021.2.7f1

2022.1

2022.2

Issue ID

1396558

Regression

No

[Android][UAAL] Unity Built into Xamarin Project causes crash due to a signals mismatch

Android

-

Reproduction steps:
1. Download user's attached project "SignalCollisionTest.zip"
2. Open and build "XamarinAndroidEmbedUnityTest.sln" normally with VS or Rider IDE, make sure to build the 'XamarinAndroidEmbedUnityBinding' part first
3. Run the app, tap first the "Start Unity" button, wait for Unity part to load, then tap "Trigger GC" button to make Xamarin GC alive and observe the crash

Expected result: Unity Built into Xamarin Project does not cause a crash due to a signals mismatch
Actual result: Unity Built into Xamarin Project causes crash due to a signals mismatch

Reproduces on: 2019.4.36f1, 2020.3.27f1, 2021.2.9f1, 2022.1.0b9, 2022.2.0a5

Reproducible with these devices:
N/A, Samsung Galaxy S9 (SM-G960F), Android 8.0.0, CPU: Exynos 9 Series 9810, GPU: Mali-G72

Notes:
-For more in-depth steps check "README.md" in the project folder
-Attached logcat "logcat_unity_signal_crash.txt"
-Issue manifests with any scripting backend (il2cpp/mono) and any version of Unity the Customer has tried (2019.x till 2021.2.x)
-Customer noted that it's constantly reproducible with a 32bit tablet

  1. Resolution Note:

    Unity as a Library does not have official support for Xamarin.

    Xamarin is Mono, so a clash with Unitys mono is no surprise, nor is with il2cpp, which is based on mono.

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.