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bpo-44434: Don't call PyThread_exit_thread() explicitly #26758

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Jun 21, 2021
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bpo-44434: Don't call PyThread_exit_thread() explicitly #26758

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4 changes: 4 additions & 0 deletions Misc/NEWS.d/next/Library/2021-06-16-16-52-14.bpo-44434.SQS4Pg.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,4 @@
_thread.start_new_thread() no longer calls PyThread_exit_thread() explicitly
at the thread exit, the call was redundant. On Linux with the glibc,
pthread_exit() aborts the whole process if dlopen() fails to open
libgcc_s.so file (ex: EMFILE error). Patch by Victor Stinner.
4 changes: 3 additions & 1 deletion Modules/_threadmodule.c
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Expand Up @@ -1107,7 +1107,9 @@ thread_run(void *boot_raw)
PyThreadState_Clear(tstate);
_PyThreadState_DeleteCurrent(tstate);

PyThread_exit_thread();
// bpo-44434: Don't call explicitly PyThread_exit_thread(). On Linux with
// the glibc, pthread_exit() can abort the whole process if dlopen() fails
// to open the libgcc_s.so library (ex: EMFILE error).
}

static PyObject *
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