How to debug a browser freeze?

Blarp · March 2, 2016, 10:16am

When you play the build below, click the “Salty’s Server” button then click the “Login” button. Your chrome window will freeze. I’m using a custom server.

Hitting login establishes the websocket connection with the custom server. It works perfectly in the Editor but not live.

This is the build:

This is the source:
https://github.com/UnityEQ/UnityEQClient

This is the button:

github.com

UnityEQ/UnityEQWebGL/blob/master/Assets/Scripts/CharacterSelect.cs#L339


      
          			CButton6Text.text = name;
          		else if (index == 6)
          			CButton7Text.text = name;
          		else if (index == 7)
          			CButton8Text.text = name;
          	}
          	
          	public void UpdateCharButtonZone(int index, int zoneId) 
          	{
          		if (index == 0)
          			WorldConnection.char0zone = zoneId;
          		else if (index == 1)
          			WorldConnection.char1zone = zoneId;
          		else if (index == 2)
          			WorldConnection.char2zone = zoneId;
          		else if (index == 3)
          			WorldConnection.char3zone = zoneId;
          		else if (index == 4)
          			WorldConnection.char4zone = zoneId;
          		else if (index == 5)
          			WorldConnection.char5zone = zoneId;

This is the Connection IEnumerator:

github.com

UnityEQ/UnityEQWebGL/blob/master/Assets/Scripts/WorldConnect.cs#L175


      
          
          			opcodeDict = new Dictionary<string, OpcodeFunc>();//for testing
          			opcodeDict.Add ("423", HandleWorldMessage_SendCharInfo);
          			opcodeDict.Add ("36", HandleWorldMessage_ApproveName);
          			opcodeDict.Add ("548", HandleWorldMessage_ZoneUnavailable);
          			opcodeDict.Add ("545", HandleWorldMessage_ZoneServerInfo);
          			opcodeDict.Add ("365", HandleWorldMessage_PlayerProfile);
          			opcodeDict.Add ("338", HandleWorldMessage_NewZone);
          			opcodeDict.Add ("546", HandleWorldMessage_ZoneServerReady);
          			opcodeDict.Add ("549", HandleWorldMessage_EmuKeepAlive);
          			opcodeDict.Add ("550", HandleWorldMessage_EmuKeepAlive);
          			opcodeDict.Add ("551", HandleWorldMessage_EmuRequestClose);
          			opcodeDict.Add ("296", HandleWorldMessage_LogOutReply);
          			opcodeDict.Add ("424", HandleWorldMessage_SendExpZonein);
          			opcodeDict.Add ("547", HandleWorldMessage_ZoneSpawns);
          			opcodeDict.Add ("336", HandleWorldMessage_ZoneSpawns);
          			opcodeDict.Add ("539", HandleWorldMessage_ZoneChange);
          			opcodeDict.Add ("116", HandleWorldMessage_DeleteSpawn);
          			opcodeDict.Add ("69", HandleWorldMessage_ChannelMessage);
          			opcodeDict.Add ("87", HandleWorldMessage_ClientUpdate);
          			opcodeDict.Add ("458", HandleWorldMessage_SimpleMessage);

Appreciate any advice on how to debug this situation.

Marco-Trivellato · March 2, 2016, 10:50am

firefox crashes, could you upload a development build so we can get a useful callstack ?

side note, I noticed this in the log: “The referenced script on this Behaviour (Game Object ‘Main Camera’) is missing!”. It might not be related but you may want to fix it.

Marco-Trivellato · March 2, 2016, 10:56am

actually chrome eventually crashes with an exception:

exception thrown: SyntaxError: An invalid or illegal string was specified,_SocketCreate
Uncaught SyntaxError: Failed to construct ‘WebSocket’: The URL ‘’ is invalid.

Blarp · March 2, 2016, 11:26am

@ SocketCreate, I imagine my problem is somewhere here:

github.com

UnityEQ/UnityEQWebGL/blob/master/Assets/Plugins/WebSocket.cs#L37


      
          	}
          
          	public string RecvString()
          	{
          		byte[] retval = Recv();
          		if (retval == null)
          			return null;
          		return Encoding.UTF8.GetString (retval);
          	}
          
          #if UNITY_WEBGL && !UNITY_EDITOR
          	[DllImport("__Internal")]
          	private static extern int SocketCreate (string url);
          
          	[DllImport("__Internal")]
          	private static extern int SocketState (int socketInstance);
          
          	[DllImport("__Internal")]
          	private static extern void SocketSend (int socketInstance, byte[] ptr, int length);
          
          	[DllImport("__Internal")]

and here:
https://github.com/UnityEQ/UnityEQClient/blob/master/Assets/Plugins/WebSocket.jslib#L4

Thanks, I can now attempt to fix it~

Blarp · March 5, 2016, 9:28pm

If anyone can lend a hand or advice on the bug above, it’d be greatly appreciated. I’m struggling still.

An error occured running the Unity content on this page. See your browser's JavaScript console for more info. The error was:
uncaught exception: abort("Assertion failed: undefined") at jsStackTrace@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:1057:12
stackTrace@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:1071:21
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assert@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:365:3
Pointer_stringify@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:636:3
_SocketCreate@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:11288:12
_SocketCreate__wrapper@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2794996:9
dynCall_ii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2790327:9
invoke_ii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:16286:10
_WebSocket_SocketCreate_m984752765@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2465143:7
dynCall_iiii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2775518:9
invoke_iiii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:16406:10
_U3CConnectU3Ec__Iterator0_MoveNext_m3108191136@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:1253640:17
__Z34RuntimeInvoker_Boolean_t3143194569PK10MethodInfoPvPS2_ [RuntimeInvoker_Boolean_t3143194569?2(void**, undefined?S?*)]@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2708577:20
dynCall_iiii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2775518:9
invoke_iiii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:16406:10
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_il2cpp_runtime_invoke@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2767412:9
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__ZN19ScriptingInvocation6InvokeEPP18ScriptingExceptionb [ScriptingInvocation::Invoke(bool**)]@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:1974904:7
__ZN19ScriptingInvocation6InvokeIbEET_PP18ScriptingExceptionb [undefined ScriptingInvocation::Invoke<bool>?T()]@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2745738:7
__ZN9Coroutine3RunEv [Coroutine::Run()]@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2073239:7
__ZN13MonoBehaviour15CreateCoroutineEP15ScriptingObject21ScriptingMethodIl2Cpp [MonoBehaviour::CreateCoroutine?1(ScriptingObject?2?*)]@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:1424517:3
__ZN13MonoBehaviour22StartCoroutineManaged2EP15ScriptingObject [MonoBehaviour::StartCoroutineManaged2(ScriptingObject?*)]@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2134342:8
__Z40MonoBehaviour_CUSTOM_StartCoroutine_AutoP15ScriptingObjectS0_ [MonoBehaviour_CUSTOM_StartCoroutine_Auto?0(ScriptingObject?S?*)]@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2161638:8
dynCall_iii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2782281:9
invoke_iii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:16142:10
_MonoBehaviour_StartCoroutine_Auto_m1744905232@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2312940:8
dynCall_iiii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2775518:9
invoke_iiii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:16406:10
_MonoBehaviour_StartCoroutine_m2470621050@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2488253:7
dynCall_iiii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2775518:9
invoke_iiii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:16406:10
_U3CConnectToWebSocketServerU3Ec__Iterator0_MoveNext_m1394233556@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:441893:20
__Z34RuntimeInvoker_Boolean_t3143194569PK10MethodInfoPvPS2_ [RuntimeInvoker_Boolean_t3143194569?2(void**, undefined?S?*)]@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2708577:20
dynCall_iiii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2775518:9
invoke_iiii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:16406:10
__ZN6il2cpp2vm7Runtime6InvokeEPK10MethodInfoPvPS5_PP12Il2CppObject [il2cpp::vm::Runtime::Invoke?5(void**, undefined?S?*)]@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2557233:8
_il2cpp_runtime_invoke@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2767412:9
__Z20il2cpp_invoke_method21ScriptingMethodIl2CppP15ScriptingObjectP18ScriptingArgumentsPP18ScriptingExceptionb [il2cpp_invoke_method?2()]@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2691165:8
__ZN19ScriptingInvocation6InvokeEPP18ScriptingExceptionb [ScriptingInvocation::Invoke(bool**)]@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:1974904:7
__ZN19ScriptingInvocation6InvokeIbEET_PP18ScriptingExceptionb [undefined ScriptingInvocation::Invoke<bool>?T()]@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2745738:7
__ZN9Coroutine3RunEv [Coroutine::Run()]@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2073239:7
__ZN13MonoBehaviour15CreateCoroutineEP15ScriptingObject21ScriptingMethodIl2Cpp [MonoBehaviour::CreateCoroutine?1(ScriptingObject?2?*)]@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:1424517:3
__ZN13MonoBehaviour22StartCoroutineManaged2EP15ScriptingObject [MonoBehaviour::StartCoroutineManaged2(ScriptingObject?*)]@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2134342:8
__Z40MonoBehaviour_CUSTOM_StartCoroutine_AutoP15ScriptingObjectS0_ [MonoBehaviour_CUSTOM_StartCoroutine_Auto?0(ScriptingObject?S?*)]@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2161638:8
dynCall_iii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2782281:9
invoke_iii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:16142:10
_MonoBehaviour_StartCoroutine_Auto_m1744905232@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2312940:8
dynCall_iiii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2775518:9
invoke_iiii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:16406:10
_MonoBehaviour_StartCoroutine_m2470621050@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:2488253:7
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invoke_iiii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:16406:10
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invoke_viii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:16206:3
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invoke_vii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:15950:3
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invoke_viiii@blob:http://unityeq.com/b212d286-c2b7-4933-a16a-bd6dbd5804a2:15910:3
_EventFunction_1_Invoke_m2378823

Blarp · March 6, 2016, 12:28am

solved, not sure how, pushed changes to git.

Everquest MMO game server (eqemu) connected to Unity3d WebGL.

praise

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How to debug a browser freeze?

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