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Fixed in 1.0.0, 1.1.0-exp1 (from a later date)
Votes
1
Found in [Package]
1.1.0-exp.1
Issue ID
1396955
Regression
Yes
IL2CPP Master build crashes on WriteZStream when accessing a reference of the instance of NetworkDriver
How to reproduce:
1. Open the attached project from "netcode-crash.zip" and open Scene "SampleScene"
2. In Project Settings > Player check that Scripting Backend is set as IL2CPP and C++ Compiler Configuration as Master
3. Build and Run the project
4. Observe crash of the Player
Reproducible with: 1.1.0-exp.1 (2020.3.28f1, 2021.1.28f1)
Not reproducible with: 1.0.0-pre.12 (2020.3.28f1, 2021.1.28f1, 2021.2.11f1, 2022.1.0b7, 2022.2.0a4), 1.1.0-exp.1 (2021.2.11f1, 2022.1.0b7, 2022.2.0a4)
Could not test with: 2019.4.35f1 (No compatible Collections package)
First lines of stack traces:
0x00007FFE405BE50D (GameAssembly) WriteZStream
ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FFE3FFE372C)
0x00007FFE3FFE372C (GameAssembly) (function-name not available)
0x00007FFE400D26B4 (GameAssembly) DllCanUnloadNow
0x00007FFE4139FED8 (UnityPlayer) UnityMain
0x00007FFE3CAA9B42 (GameAssembly) [C:\Users\siaur\Downloads\1396955_netcode-crash\Library\Il2cppBuildCache\Windows\x64\il2cppOutput\Assembly-CSharp.cpp:4259] ClientNetPacketHandler_Connect_m877D366CE827229295D05409FD82D15B8E1EC6BF
0x00007FFE3C5E19B6 (GameAssembly) [C:\Program Files\Unity EDITORS\2021.1.28f1_f3f9dc10f3dd\Data\il2cpp\libil2cpp\vm\Runtime.cpp:562] il2cpp::vm::Runtime::InvokeWithThrow
0x00007FFE3C5E1955 (GameAssembly) [C:\Program Files\Unity EDITORS\2021.1.28f1_f3f9dc10f3dd\Data\il2cpp\libil2cpp\vm\Runtime.cpp:547] il2cpp::vm::Runtime::Invoke
Notes:
1. Crash does not reproduce if the project is built with C++ Compiler Configuration set as Release
2. Commenting out the line 45 of script ClientNetPacketHandler.cs will make the build not crash
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Resolution Note (fix version 1.0.0, 1.1.0-exp1 (from a later date)):
Fixed from 1.0.0, 1.1.0-exp1 and onwards