Fix remaining memory bugs #443
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…fter Python finalization
… should return `undefined` instead of throwing a Python error
We cannot use `Py_AtExit(cleanup);` because the GIL is unavailable after Python finalization, no more Python APIs can be called.
… string size when possible
… string size when possible
…the GIL is already handed over to another thread
…ython Otherwise a `_PyObject_AssertFailed` error will be raised See: `_PyUnicode_CheckConsistency` https://github.com/python/cpython/blob/v3.11.3/Objects/unicodeobject.c#L594-L600, #L552-L553
…thod with the simpler `JS_EncodeStringToUTF8` SpiderMonkey API
`PyList_SetItem` steals the reference, so we must increase the reference count by 1
…ems to the new list
WIP: I don't know exactly why...
* thread #1, name = 'python', stop reason = signal SIGSEGV: address not mapped to object
* frame #0: 0x0000ffff97f6acf8 libpython3.11.so.1.0`PyObject_GC_Del [inlined] gc_list_remove(node=0x0000ffff9124d2b0) at gcmodule.c:269:5
frame #1: 0x0000ffff97f6acf8 libpython3.11.so.1.0`PyObject_GC_Del(op=0x0000ffff9124d2c0) at gcmodule.c:2350:9
frame #2: 0x0000ffff97f02d34 libpython3.11.so.1.0`maybe_freelist_clear(interp=0x0000ffff982706d0, fini=0) at tupleobject.c:1251:13
frame #3: 0x0000ffff9800cee0 libpython3.11.so.1.0`gc_collect_main [inlined] clear_freelists(interp=0x0000ffff982706d0) at gcmodule.c:1037:5
frame #4: 0x0000ffff9800ced8 libpython3.11.so.1.0`gc_collect_main(tstate=0x0000ffff9828aa50, generation=2, n_collected=0x0000000000000000, n_uncollectable=0x0000000000000000, nofail=1) at gcmodule.c:1313:9
frame #5: 0x0000ffff9800d5a4 libpython3.11.so.1.0`_PyGC_CollectNoFail(tstate=<unavailable>) at gcmodule.c:2110:9
frame #6: 0x0000ffff97ffd2a0 libpython3.11.so.1.0`Py_FinalizeEx at pylifecycle.c:1833:5
frame #7: 0x0000ffff9800b788 libpython3.11.so.1.0`Py_RunMain at main.c:682:9
frame #8: 0x0000ffff9800b468 libpython3.11.so.1.0`Py_BytesMain(argc=<unavailable>, argv=<unavailable>) at main.c:734:12
frame #9: 0x0000ffff97bb73fc libc.so.6`___lldb_unnamed_symbol2962 + 108
frame #10: 0x0000ffff97bb74cc libc.so.6`__libc_start_main + 152
frame #11: 0x0000aaaade3e08b0 python3.11`_start + 48
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wesgarland
reviewed
Sep 24, 2024
zollqir
previously requested changes
Sep 24, 2024
…m-bugs-using-debug-build
Since each call of `PyList_SetItem` steals a reference (even if its to the same object), we need multiple references to it for it to steal Co-authored-by: Caleb Aikens <caleb@distributive.network>
…nger usable/useful after the context is destroyed
…hon 3.11 Something is double-free-ed during the final finalization: in a debug build of Python, `./Include/object.h:602: _Py_NegativeRefcount: Assertion failed: object has negative ref count` In non-debug build of Python, it simply segfaults at the end during finalization.
wesgarland
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Xmader
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The CI sometimes fail on
maineven after we released the "stable" PythonMonkey v1.0.After all pytests are done, the program segfaults during the Python interpreter finalization.
Debugged using a debug build of Python