Hi,
At the company I work for, we've embedded Python in C++ application we
develop. Since our upgrade to Python 2.4.2 from 2.4.1 we started hitting
Py_FatalError("Invalid thread state for this thread") when using debug
builds.
We use both multiple interpreters and thread states.
I think the problem is that PyThreadState_Delete (which is used when I
destroy thread states and interpreters) is not making the same clean up
that PyThreadState_DeleteCurrent is doing (which is used when we create
threads from python code). If a thread id is reused (obviously not
between two running threads), and the previous thread used
PyThreadState_Delete instead of PyThreadState_DeleteCurrent, then an old
and invalid value for autoTLSkey is still stored, and that is
triggering the Py_FatalError when a call to PyThreadState_Swap is made.
If I add this code at the end of PyThreadState_Delete:
if (autoTLSkey && PyThread_get_key_value(autoTLSkey) == tstate)
PyThread_delete_key_value(autoTLSkey);
then everything works fine.
Could you please confirm if this is a bug ?
Thanks a lot and have a nice day.
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