Fixed at https://github.com/cocos2d/cocos2d-x/pull/5227

It only could be reproduced on Mac platform.

Reproduce Step¶

• Use release version of Spidermonkey for Mac.
• Run TestJavascript or any other JSB projects
• Launch Firefox v25(or higher version), connect to JSB application.

Then, crash at

  











  
void ScriptingCore::debugProcessInput(const std::string& str)
{
    JSAutoCompartment ac(_cx, _debugGlobal);

    JSString* jsstr = JS_NewStringCopyZ(_cx, str.c_str());
    jsval argv = STRING_TO_JSVAL(jsstr);
    jsval outval;

    JS_CallFunctionName(_cx, _debugGlobal, "processInput", 1, &argv, &outval);  // Crash here.
}

How to Fix¶

  







  
void ScriptingCore::enableDebugger()
{
 ...    
        _debugGlobal = NewGlobalObject(_cx, true);
        // Adds the debugger object to root, otherwise it may be collected by GC.
        JS_AddObjectRoot(_cx, &_debugGlobal);  // Added this line to add debug object to root.