unobserved_task_exception

Question

Hi,

I creating a test suite for my library and  i get unobserved_task_exception. Looking at the stack trace  don't found any references to my sources, how can i know what is the cause of this exception?

       KernelBase.dll!755ce09f()       Unknown
       [Frames below may be incorrect and/or missing, no symbols loaded for
KernelBase.dll]
       KernelBase.dll!755ce09f()       Unknown
>       msvcr110d.dll!_CxxThrowException(void * pExceptionObject, const _s__ThrowInfo * pThrowInfo) Line 141    C++
       ice34d.dll!Concurrency::details::_ExceptionHolder::~_ExceptionHolder()
Line 987        C++
       ice34d.dll!Concurrency::details::_ExceptionHolder::`scalar deleting
destructor'(unsigned int)       C++
       ice34d.dll!std::_Ref_count_obj<Concurrency::details::_ExceptionHolder>::_Destroy()
Line 867        C++
       ice34d.dll!std::_Ref_count_base::_Decref() Line 102     C++
       ice34d.dll!std::_Ptr_base<Concurrency::details::_ExceptionHolder>::_Decref()
Line 329        C++
       ice34d.dll!std::shared_ptr<Concurrency::details::_ExceptionHolder>::~shared_ptr<Concurrency::details::_ExceptionHolder>()
Line 606        C++
       ice34d.dll!Concurrency::details::_Task_impl_base::~_Task_impl_base()
Line 1215       C++
       ice34d.dll!Concurrency::details::_Task_impl<unsigned
char>::~_Task_impl<unsigned char>() Line 1934   C++
       ice34d.dll!Concurrency::details::_Task_impl<unsigned char>::`scalar
deleting destructor'(unsigned int)      C++
       ice34d.dll!std::_Ref_count_obj<Concurrency::details::_Task_impl<unsigned
char> >::_Destroy() Line 866    C++
       ice34d.dll!std::_Ref_count_base::_Decref() Line 102     C++
       ice34d.dll!std::_Ptr_base<Concurrency::details::_Task_impl<unsigned
char> >::_Decref() Line 329     C++
       ice34d.dll!std::shared_ptr<Concurrency::details::_Task_impl<unsigned
char> >::~shared_ptr<Concurrency::details::_Task_impl<unsigned char>
>() Line 606    C++
       ice34d.dll!Concurrency::details::_PPLTaskHandle<unsigned
char,Concurrency::task<unsigned
char>::_ContinuationTaskHandle<void,void,<lambda_65124971d6c6d9e561c25de8ab734f7d>,std::integral_constant<bool,1>,Concurrency::details::_TypeSelectorNoAsync>,Concurrency::details::_ContinuationTaskHandleBase>::~_PPLTaskHandle<unsigned
char,Concurrency::task<unsigned
char>::_ContinuationTaskHandle<void,void,<lambda_65124971d6c6d9e561c25de8ab734f7d>,std::integral_constant<bool,1>,Concurrency::details::_TypeSelectorNoAsync>,Concurrency::details::_ContinuationTaskHandleBase>()      C++
       ice34d.dll!Concurrency::task<unsigned
char>::_ContinuationTaskHandle<void,void,<lambda_65124971d6c6d9e561c25de8ab734f7d>,std::integral_constant<bool,1>,Concurrency::details::_TypeSelectorNoAsync>::~_ContinuationTaskHandle<void,void,<lambda_65124971d6c6d9e561c25de8ab734f7d>,std::integral_constant<bool,1>,Concurrency::details::_TypeSelectorNoAsync>()        C++
       ice34d.dll!Concurrency::task<unsigned
char>::_ContinuationTaskHandle<void,void,<lambda_65124971d6c6d9e561c25de8ab734f7d>,std::integral_constant<bool,1>,Concurrency::details::_TypeSelectorNoAsync>::`scalar
deleting destructor'(unsigned int)      C++
       msvcr110d.dll!Concurrency::details::_UnrealizedChore::_InternalFree(Concurrency::details::_UnrealizedChore
* _PChore) Line 34      C++
       msvcr110d.dll!Concurrency::details::_TaskCollection::_NotifyCompletedChoreAndFree(Concurrency::details::_UnrealizedChore
* pChore) Line 1148     C++
       msvcr110d.dll!Concurrency::details::_UnrealizedChore::_UnstructuredChoreWrapper(Concurrency::details::_UnrealizedChore
* pChore) Line 374      C++
       msvcr110d.dll!Concurrency::details::_UnrealizedChore::_Invoke() Line 4408       C++
       msvcr110d.dll!Concurrency::details::WorkItem::Invoke() Line 172 C++
       msvcr110d.dll!Concurrency::details::InternalContextBase::ExecuteChoreInline(Concurrency::details::WorkItem
* pWork) Line 1605      C++
       msvcr110d.dll!Concurrency::details::InternalContextBase::Dispatch(Concurrency::DispatchState
* pDispatchState) Line 1719     C++
       msvcr110d.dll!Concurrency::details::FreeThreadProxy::Dispatch() Line 197        C++
       msvcr110d.dll!Concurrency::details::ThreadProxy::ThreadProxyMain(void
* lpParameter) Line 171 C++
       kernel32.dll!75902b9d() Unknown
       ntdll.dll!77ea7221()    Unknown
       ntdll.dll!77ea71cd()    Unknown

Answer 1

 

Hello,

 

Would you please us the steps to reproduce this issue?

 

You can upload your project to skydriver

http://skydrive.live.com/

 

It is not necessary that you send out the whole of your project. We just need a simplest sample to reproduce the problem. You can remove any confidential information or business details from it.

 

Best regards,

Jesse

---

Jesse Jiang [MSFT]
MSDN Community Support | Feedback to us

Answer 2

I cannot reproduce the problem with the new release preview.