[capi-sig] Can't create new interpreter in multi thread

Hello,

I'm working on a C extension interface of Python. I want to create a new interpreter by using the function Py_NewInterpreter() in a new thread, which is created by pthread_create (my test files are in attachment), but there are always errors when calling Py_NewInterpreter() such as "failed: object already tracked by the garbage collector".

I would like to ask how to solve the problem and create a new interpreter in multi thread in Python C extension?

Sincerely, Kun