Are you able to narrow down the problem to a small script that reproduces it?
The code pointed to in that call stack doesn't really have many ways of failing in that way (null reference). The most likely thing is that DefaultContext.DefaultPythonContext is not being set. But I think that is done for you when the scripting runtime is initialized. How are you creating the script runtime? Running from a background thread shouldn't have any bearing on it, unless this were a race issue. And since the crash is happening in a static ctor, that pretty much rules out thread races. Keith Rome Senior Consultant and Architect MCPD-EAD, MCSD, MCDBA, MCTS-WPF, MCTS-TFS, MCTS-WSS Wintellect | 770.617.4016 | [email protected]<mailto:[email protected]> www.wintellect.com<http://www.wintellect.com/> From: Ironpython-users [mailto:[email protected]] On Behalf Of Zsidó Zoltán Sent: Wednesday, January 9, 2013 8:55 AM To: [email protected] Subject: [Ironpython-users] crash on Win8 64bit at IronPython expression evaluation Hi, We are using IronPython and Windows 8 long time, but now we have an exception that only occurs on windows 8 64 bit. (We did not test on Windows 8 32 bit but tested on Windows 7 32/64 bit where it is ok.) The application crashes at the first ironpython expression evaluating. I think it is important to note that we are using IronPython from a background thread. We cannot debug it on windows 8. If this exception is similar to you please help us. Thanks, Zoltan the stack trace: System.TypeInitializationException: The type initializer for 'IronPython.Runtime.Converter' threw an exception. ---> System.NullReferenceException: Object reference not set to an instance of an object. at IronPython.Runtime.Converter.MakeConvertSite[T](ConversionResultKind kind) at IronPython.Runtime.Converter.MakeExplicitConvertSite[T]() at IronPython.Runtime.Converter..cctor() --- End of inner exception stack trace --- at IronPython.Runtime.Converter.HasImplicitNumericConversion(Type fromType, Type toType) at IronPython.Runtime.Converter.CanConvertFrom(Type fromType, Type toType, NarrowingLevel allowNarrowing) at IronPython.Runtime.Binding.PythonBinder.CanConvertFrom(Type fromType, Type toType, Boolean toNotNullable, NarrowingLevel level) at Microsoft.Scripting.Actions.Calls.OverloadResolver.CanConvertFrom(Type fromType, DynamicMetaObject fromArgument, ParameterWrapper toParameter, NarrowingLevel level) at IronPython.Runtime.Binding.PythonOverloadResolver.CanConvertFrom(Type fromType, DynamicMetaObject fromArg, ParameterWrapper toParameter, NarrowingLevel level) at Microsoft.Scripting.Actions.Calls.OverloadResolver.TryConvertArguments(MethodCandidate candidate, ArgumentBinding namesBinding, NarrowingLevel narrowingLevel, CallFailure& failure) at Microsoft.Scripting.Actions.Calls.OverloadResolver.SelectCandidatesWithConvertibleArgs(List`1 candidates, NarrowingLevel level, List`1& failures) at Microsoft.Scripting.Actions.Calls.OverloadResolver.MakeBindingTarget(CandidateSet targetSet) at Microsoft.Scripting.Actions.Calls.OverloadResolver.ResolveOverload(String methodName, IList`1 methods, NarrowingLevel minLevel, NarrowingLevel maxLevel) at Microsoft.Scripting.Actions.Calls.OverloadResolver.ResolveOverload(String methodName, IList`1 methods, NarrowingLevel minLevel, NarrowingLevel maxLevel) at Microsoft.Scripting.Actions.DefaultBinder.CallMethod(DefaultOverloadResolver resolver, IList`1 targets, BindingRestrictions restrictions, String name, NarrowingLevel minLevel, NarrowingLevel maxLevel, BindingTarget& target) at IronPython.Runtime.Binding.MetaBuiltinFunction.<>c__DisplayClass4.<MakeSelfCall>b__3(DynamicMetaObject[] newArgs) at IronPython.Runtime.Types.BuiltinFunction.MakeBuiltinFunctionCall(DynamicMetaObjectBinder call, Expression codeContext, DynamicMetaObject function, DynamicMetaObject[] args, Boolean hasSelf, BindingRestrictions functionRestriction, Func`2 bind) at IronPython.Runtime.Binding.MetaBuiltinFunction.MakeSelfCall(DynamicMetaObjectBinder call, Expression codeContext, DynamicMetaObject[] args) at IronPython.Runtime.Binding.MetaBuiltinFunction.InvokeWorker(DynamicMetaObjectBinder call, Expression codeContext, DynamicMetaObject[] args) at IronPython.Runtime.Binding.MetaBuiltinFunction.Invoke(PythonInvokeBinder pythonInvoke, Expression codeContext, DynamicMetaObject target, DynamicMetaObject[] args) at IronPython.Runtime.Binding.PythonInvokeBinder.BindWorker(DynamicMetaObject context, DynamicMetaObject target, DynamicMetaObject[] args) at IronPython.Runtime.Binding.PythonInvokeBinder.Bind(DynamicMetaObject target, DynamicMetaObject[] args) at Microsoft.Scripting.Utils.DynamicUtils.GenericInterpretedBinder`1.Bind(DynamicMetaObjectBinder binder, Int32 compilationThreshold, Object[] args) at Microsoft.Scripting.Utils.DynamicUtils.LightBind[T](DynamicMetaObjectBinder binder, Object[] args, Int32 compilationThreshold) at IronPython.Runtime.Types.BuiltinFunction.IronPython.Runtime.Binding.IFastInvokable.MakeInvokeBinding[T](CallSite`1 site, PythonInvokeBinder binder, CodeContext state, Object[] args) at IronPython.Runtime.Binding.PythonInvokeBinder.BindDelegate[T](CallSite`1 site, Object[] args) at System.Runtime.CompilerServices.CallSiteBinder.BindCore[T](CallSite`1 site, Object[] args) at System.Dynamic.UpdateDelegates.UpdateAndExecute3[T0,T1,T2,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2) at Microsoft.Scripting.Interpreter.DynamicInstruction`4.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.LightLambda.Run2[T0,T1,TRet](T0 arg0, T1 arg1) at IronPython.Compiler.PythonCallTargets.OriginalCallTarget1(PythonFunction function, Object arg0) at IronPython.Runtime.FunctionCaller`1.Call1(CallSite site, CodeContext context, Object func, T0 arg0) at System.Dynamic.UpdateDelegates.UpdateAndExecute3[T0,T1,T2,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2) at Microsoft.Scripting.Interpreter.DynamicInstruction`4.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.LightLambda.Run2[T0,T1,TRet](T0 arg0, T1 arg1) at IronPython.Compiler.PythonScriptCode.RunWorker(CodeContext ctx) at IronPython.Compiler.PythonScriptCode.EvalWrapper(CodeContext ctx) at IronPython.Compiler.PythonScriptCode.Run(Scope scope) at IronPython.Compiler.RuntimeScriptCode.InvokeTarget(Scope scope) at IronPython.Compiler.RuntimeScriptCode.Run(Scope scope) at Microsoft.Scripting.SourceUnit.Execute(Scope scope, ErrorSink errorSink) at Microsoft.Scripting.Hosting.ScriptSource.Execute(ScriptScope scope) at CGS.CGS.ExecuteAssign(AssignAbs assign) at CGS.CGS.ModelPool_PropertyRead(Object sender, PropertyEventArgs e) m: at IronPython.Runtime.Converter.HasImplicitNumericConversion(Type fromType, Type toType) at IronPython.Runtime.Converter.CanConvertFrom(Type fromType, Type toType, NarrowingLevel allowNarrowing) at IronPython.Runtime.Binding.PythonBinder.CanConvertFrom(Type fromType, Type toType, Boolean toNotNullable, NarrowingLevel level) at Microsoft.Scripting.Actions.Calls.OverloadResolver.CanConvertFrom(Type fromType, DynamicMetaObject fromArgument, ParameterWrapper toParameter, NarrowingLevel level) at IronPython.Runtime.Binding.PythonOverloadResolver.CanConvertFrom(Type fromType, DynamicMetaObject fromArg, ParameterWrapper toParameter, NarrowingLevel level) at Microsoft.Scripting.Actions.Calls.OverloadResolver.TryConvertArguments(MethodCandidate candidate, ArgumentBinding namesBinding, NarrowingLevel narrowingLevel, CallFailure& failure) at Microsoft.Scripting.Actions.Calls.OverloadResolver.SelectCandidatesWithConvertibleArgs(List`1 candidates, NarrowingLevel level, List`1& failures) at Microsoft.Scripting.Actions.Calls.OverloadResolver.MakeBindingTarget(CandidateSet targetSet) at Microsoft.Scripting.Actions.Calls.OverloadResolver.ResolveOverload(String methodName, IList`1 methods, NarrowingLevel minLevel, NarrowingLevel maxLevel) at Microsoft.Scripting.Actions.Calls.OverloadResolver.ResolveOverload(String methodName, IList`1 methods, NarrowingLevel minLevel, NarrowingLevel maxLevel) at Microsoft.Scripting.Actions.DefaultBinder.CallMethod(DefaultOverloadResolver resolver, IList`1 targets, BindingRestrictions restrictions, String name, NarrowingLevel minLevel, NarrowingLevel maxLevel, BindingTarget& target) at IronPython.Runtime.Binding.MetaBuiltinFunction.<>c__DisplayClass4.<MakeSelfCall>b__3(DynamicMetaObject[] newArgs) at IronPython.Runtime.Types.BuiltinFunction.MakeBuiltinFunctionCall(DynamicMetaObjectBinder call, Expression codeContext, DynamicMetaObject function, DynamicMetaObject[] args, Boolean hasSelf, BindingRestrictions functionRestriction, Func`2 bind) at IronPython.Runtime.Binding.MetaBuiltinFunction.MakeSelfCall(DynamicMetaObjectBinder call, Expression codeContext, DynamicMetaObject[] args) at IronPython.Runtime.Binding.MetaBuiltinFunction.InvokeWorker(DynamicMetaObjectBinder call, Expression codeContext, DynamicMetaObject[] args) at IronPython.Runtime.Binding.MetaBuiltinFunction.Invoke(PythonInvokeBinder pythonInvoke, Expression codeContext, DynamicMetaObject target, DynamicMetaObject[] args) at IronPython.Runtime.Binding.PythonInvokeBinder.BindWorker(DynamicMetaObject context, DynamicMetaObject target, DynamicMetaObject[] args) at IronPython.Runtime.Binding.PythonInvokeBinder.Bind(DynamicMetaObject target, DynamicMetaObject[] args) at Microsoft.Scripting.Utils.DynamicUtils.GenericInterpretedBinder`1.Bind(DynamicMetaObjectBinder binder, Int32 compilationThreshold, Object[] args) at Microsoft.Scripting.Utils.DynamicUtils.LightBind[T](DynamicMetaObjectBinder binder, Object[] args, Int32 compilationThreshold) at IronPython.Runtime.Types.BuiltinFunction.IronPython.Runtime.Binding.IFastInvokable.MakeInvokeBinding[T](CallSite`1 site, PythonInvokeBinder binder, CodeContext state, Object[] args) at IronPython.Runtime.Binding.PythonInvokeBinder.BindDelegate[T](CallSite`1 site, Object[] args) at System.Runtime.CompilerServices.CallSiteBinder.BindCore[T](CallSite`1 site, Object[] args) at System.Dynamic.UpdateDelegates.UpdateAndExecute3[T0,T1,T2,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2) at Microsoft.Scripting.Interpreter.DynamicInstruction`4.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.LightLambda.Run2[T0,T1,TRet](T0 arg0, T1 arg1) at IronPython.Compiler.PythonCallTargets.OriginalCallTarget1(PythonFunction function, Object arg0) at IronPython.Runtime.FunctionCaller`1.Call1(CallSite site, CodeContext context, Object func, T0 arg0) at System.Dynamic.UpdateDelegates.UpdateAndExecute3[T0,T1,T2,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2) at Microsoft.Scripting.Interpreter.DynamicInstruction`4.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.LightLambda.Run2[T0,T1,TRet](T0 arg0, T1 arg1) at IronPython.Compiler.PythonScriptCode.RunWorker(CodeContext ctx) at IronPython.Compiler.PythonScriptCode.EvalWrapper(CodeContext ctx) at IronPython.Compiler.PythonScriptCode.Run(Scope scope) at IronPython.Compiler.RuntimeScriptCode.InvokeTarget(Scope scope) at IronPython.Compiler.RuntimeScriptCode.Run(Scope scope) at Microsoft.Scripting.SourceUnit.Execute(Scope scope, ErrorSink errorSink) at Microsoft.Scripting.Hosting.ScriptSource.Execute(ScriptScope scope)
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