_thread stacks size bug

  • In the documentation, it says that the command _thread.stack_size() with no argument returns the thread stack size used when creating new threads. I find that using this command resets the stack size to the default 0.

    import _thread
    import utime
    def printStack():
        tick = 0
        while  True:
            print('stack size = {}'.format(_thread.stack_size()))
    _thread.start_new_thread(printStack, ())


    stack size = 32768
    stack size = 0
    stack size = 0
    stack size = 0

    So it appears the documentation is incorrect, and the command actually resets the stack size to 0.

    Bonus question: is there a recommended limit to how large a thread stack size should be? is there any downside in having It large?


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