New submission from junyixie <xie.ju...@outlook.com>:
under building Python with --with-experimental-isolated-subinterpreters
PyThreadState_IsCurrent use _PyRuntime.gilstate. is shared by multi sub
interpreters.
Use interpreter `gil->last_holder == state` can fix it?
```
static int
PyThreadState_IsCurrent(PyThreadState *tstate)
{
/* Must be the tstate for this thread */
struct _gilstate_runtime_state *gilstate = &_PyRuntime.gilstate;
assert(_PyGILState_GetThisThreadState(gilstate) == tstate);
return tstate == _PyRuntimeGILState_GetThreadState(gilstate);
}
```
```
static int
PyThreadState_IsCurrent(PyThreadState *tstate)
{
#ifdef EXPERIMENTAL_ISOLATED_SUBINTERPRETERS
PyInterpreterState *interp = tstate->interp;
struct _ceval_state *ceval2 = &interp->ceval;
struct _gil_runtime_state *gil = &ceval2->gil;
return tstate == (PyThreadState*)_Py_atomic_load_relaxed(&gil->last_holder);
#else
/* Must be the tstate for this thread */
struct _gilstate_runtime_state *gilstate = &_PyRuntime.gilstate;
assert(_PyGILState_GetThisThreadState(gilstate) == tstate);
return tstate == _PyRuntimeGILState_GetThreadState(gilstate);
#endif
}
```
----------
components: Subinterpreters
messages: 395517
nosy: JunyiXie, vstinner
priority: normal
severity: normal
status: open
title: PyThreadState_IsCurrent bug under building Python with
--with-experimental-isolated-subinterpreters
versions: Python 3.11
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue44374>
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