cpython

mirror of https://github.com/python/cpython.git synced 2026-01-27 21:25:12 +00:00

History

Gregory P. Smith 9face218e7

[3.13] gh-87135: Hang non-main threads that attempt to acquire the GIL during finalization (GH-105805) (GH-137827)

* [3.13] gh-87135: Hang non-main threads that attempt to acquire the GIL during finalization (GH-105805)

Instead of surprise crashes and memory corruption, we now hang threads that attempt to re-enter the Python interpreter after Python runtime finalization has started. These are typically daemon threads (our long standing mis-feature) but could also be threads spawned by extension modules that then try to call into Python. This marks the `PyThread_exit_thread` public C API as deprecated as there is no plausible safe way to accomplish that on any supported platform in the face of things like C++ code with finalizers anywhere on a thread's stack. Doing this was the least bad option.

(cherry picked from commit 8cc5aa47ee464ddfd8da5461edecf4a5c72df2ff)

Co-authored-by: Jeremy Maitin-Shepard <jeremy@jeremyms.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org>

* state "3.13.7 and earlier"
* backport: do not add the deprecated marker
* fix Py_IsFinalizing doc ref

---------

Co-authored-by: Jeremy Maitin-Shepard <jeremy@jeremyms.com>

2025-08-17 09:08:14 -07:00

clinic

[3.13] gh-137668: Document that ord() supports also bytes and bytearray (GH-137669) (GH-137704)

2025-08-13 09:37:15 +00:00

frozen_modules

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_warnings.c

[3.13] gh-131927: Prevent emitting compiler warnings twice (GH-131993) (GH-132463)

2025-04-13 08:42:04 +00:00

adaptive.md

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asdl.c

…

asm_trampoline.S

[3.13] gh-136541: Fix several problems of perf trampolines in x86_64 and aarch64 (GH-136500) (#136545 )

2025-07-11 14:02:19 +00:00

assemble.c

[3.13] gh-130775: Allow negative locations in ast (GH-130795) (#132243 )

2025-04-08 10:47:24 +02:00

ast_opt.c

[3.13] gh-123344: Add missing ast optimizations for PEP 696 (GH-123377) (#123427 )

2024-08-28 14:02:34 +00:00

ast_unparse.c

[3.13] gh-125268: Use static string for "1e309" in AST (GH-125272) (GH-125280)

2024-10-24 13:59:23 -04:00

ast.c

gh-116126: Implement PEP 696 (#116129 )

2024-05-03 06:17:32 -07:00

bltinmodule.c

[3.13] gh-137668: Document that ord() supports also bytes and bytearray (GH-137669) (GH-137704)

2025-08-13 09:37:15 +00:00

bootstrap_hash.c

gh-110014: Fix bootstrap_hash.c: remove debug code (#110161 )

2023-09-30 22:21:20 +00:00

brc.c

gh-110481: Fix biased reference counting queue initialization. (#117271 )

2024-03-28 09:28:39 -04:00

bytecodes.c

[3.13] gh-133441: Fix STORE_ATTR_WITH_HINT bytecode (#133446 )

2025-05-11 23:10:04 +02:00

ceval_gil.c

[3.13] gh-87135: Hang non-main threads that attempt to acquire the GIL during finalization (GH-105805) (GH-137827)

2025-08-17 09:08:14 -07:00

ceval_macros.h

[3.13] gh-117657: Avoid race in PAUSE_ADAPTIVE_COUNTER in free-threaded build (GH-122190) (#122475 )

2024-07-30 18:18:25 +00:00

ceval.c

[3.13] GH-127953: Make line number lookup O(1) regardless of the size of the code object (#129127 )

2025-04-07 20:15:02 +02:00

codecs.c

[3.13] gh-58124: Avoid CP_UTF8 in UnicodeDecodeError (GH-137415) (#137461 )

2025-08-06 12:59:11 +00:00

compile.c

[3.13] GH-135171: Roll back all fixes for GH-127682 as they are not suitable for 3.13 (#135390 )

2025-06-11 16:57:35 +02:00

condvar.h

gh-104530: Enable native Win32 condition variables by default (GH-104531)

2024-02-02 13:50:51 +00:00

config_common.h

gh-76785: Add PyInterpreterConfig Helpers (gh-117170)

2024-04-02 20:35:52 +00:00

context.c

[3.13] gh-132002: Fix crash of ContextVar on unhashable str subtype (GH-132003) (#132007 )

2025-04-02 12:15:44 +00:00

critical_section.c

[3.13] gh-119344: Make critical section API public (GH-119353) (#120856 )

2024-06-21 20:20:41 +00:00

crossinterp_data_lookup.h

gh-76785: Improved Subinterpreters Compatibility with 3.12 (gh-115424)

2024-02-13 14:56:49 -07:00

crossinterp_exceptions.h

[3.13] gh-117398: Use Per-Interpreter State for the _datetime Static Types (gh-120009)

2024-06-03 23:37:28 +00:00

crossinterp.c

[3.13] gh-135855: Raise TypeError When Passing Non-dict Object to _interpreters.set___main___attrs (gh-135903)

2025-06-24 16:23:26 -06:00

dtoa.c

gh-91565: Replace bugs.python.org links with Devguide/GitHub ones (GH-91568)

2024-04-01 13:02:07 +00:00

dup2.c

gh-108765: Python.h no longer includes <unistd.h> (#108783 )

2023-09-02 16:50:18 +02:00

dynamic_annotations.c

…

dynload_hpux.c

gh-88402: Add new sysconfig variables on Windows (GH-110049)

2023-10-04 22:50:29 +00:00

dynload_shlib.c

gh-88402: Add new sysconfig variables on Windows (GH-110049)

2023-10-04 22:50:29 +00:00

dynload_stub.c

gh-88402: Add new sysconfig variables on Windows (GH-110049)

2023-10-04 22:50:29 +00:00

dynload_win.c

gh-88402: Add new sysconfig variables on Windows (GH-110049)

2023-10-04 22:50:29 +00:00

emscripten_signal.c

GH-108614: Unbreak emscripten build (GH-109132)

2023-09-08 17:54:45 +01:00

emscripten_trampoline.c

[3.13] gh-121698 Emscripten: Use updated WebAssembly type reflection proposal (GH-121699) (GH-121745)

2024-07-14 12:01:03 +02:00

errors.c

[3.13] gh-130163: Fix crashes related to PySys_GetObject() (GH-130503) (GH-130556)

2025-02-25 22:50:26 +00:00

executor_cases.c.h

[3.13] gh-131998: Fix NULL dereference when using an unbound method descriptor in a specialized code path (GH-132000) (#132262 )

2025-04-08 11:02:29 +00:00

fileutils.c

[3.13] gh-124476: Fix decoding from the locale encoding in the C.UTF-8 locale (GH-132477) (ПР-132528)

2025-04-14 18:59:07 +00:00

flowgraph.c

[3.13] gh-130740: Move some stdbool.h includes after Python.h (#130738 ) (#130756 )

2025-03-03 13:09:59 +01:00

formatter_unicode.c

…

frame.c

gh-118272: set stacktop to 0 before freeing contents, to avoid access to invalid objects during GC (#118478 )

2024-05-01 21:51:40 +01:00

frozen.c

gh-108716: Cleanup remaining deepfreeze infrastructure (#116919 )

2024-03-18 11:13:11 -07:00

frozenmain.c

gh-105716: Fix _PyInterpreterState_IsRunningMain() For Embedders (gh-117140)

2024-03-21 18:20:20 -06:00

future.c

[3.13] gh-126139: Improve error message location for future statement with unknown feature (GH-126140) (#126155 )

2024-10-30 00:36:06 +00:00

gc_free_threading.c

[3.13] gh-129533: Update PyGC_Enable/Disable/IsEnabled to use atomic operat… (gh-129756)

2025-02-06 23:11:17 +00:00

gc_gil.c

gh-111968: Rename freelist related struct names to Eric's suggestion (gh-115329)

2024-02-14 00:32:51 +00:00

gc.c

[3.13] gh-131740: Update PyUnstable_GC_VisitObjects to traverse perm … (gh-131754)

2025-03-27 02:43:16 +09:00

generated_cases.c.h

[3.13] gh-133441: Fix STORE_ATTR_WITH_HINT bytecode (#133446 )

2025-05-11 23:10:04 +02:00

getargs.c

[3.13] gh-118814: Fix the TypeVar constructor when name is passed by keyword (GH-122664) (GH-122806)

2024-08-08 09:49:21 +03:00

getcompiler.c

…

getcopyright.c

Update copyright years to 2024. (GH-113608)

2024-01-16 21:54:05 +01:00

getopt.c

gh-110079: Remove extern "C" { ...} in C code (#110080 )

2023-09-29 10:56:49 +02:00

getplatform.c

…

getversion.c

[3.13] gh-119132: Update sys.version to identify free-threaded or not. (gh-119134) (#119153 )

2024-05-18 16:49:11 -04:00

hamt.c

[3.13] gh-137440: Update comment in Python/hamt.c on importing for testing (GH-137441) (GH-137520)

2025-08-07 16:54:52 +00:00

hashtable.c

gh-111545: Add Py_HashPointer() function (#112096 )

2023-12-06 15:09:22 +01:00

import.c

[3.13] gh-134100: Fix use-after-free in PyImport_ImportModuleLevelObject (GH-134117) (#134172 )

2025-05-18 20:38:28 +05:30

importdl.c

[3.13] gh-122907: Fix Builds Without HAVE_DYNAMIC_LOADING Set (gh-122952) (#122984 )

2024-12-03 16:46:30 +00:00

initconfig.c

[3.13] gh-131818: Add imply -P in -I's help message (GH-131819) (#131822 )

2025-03-28 08:13:00 +00:00

instruction_sequence.c

[3.13] gh-130740: Move some stdbool.h includes after Python.h (#130738 ) (#130756 )

2025-03-03 13:09:59 +01:00

instrumentation.c

[3.13] gh-134411: assert PyLong_FromLong(x) != NULL when x is known to be small (GH-134415) (#136911 )

2025-07-21 09:21:30 +00:00

interpconfig.c

gh-76785: Fix a Refleak in _interpreters.new_config() (gh-117491)

2024-04-03 01:10:26 +00:00

intrinsics.c

[3.13] gh-130163: Fix crashes related to PySys_GetObject() (GH-130503) (GH-130556)

2025-02-25 22:50:26 +00:00

jit.c

[3.13] GH-118844: Fix build failures when combining --disable-gil with --enable-experimental-jit (GH-118959)

2024-05-13 04:53:30 +00:00

legacy_tracing.c

[3.13] gh-137400: Fix a crash when disabling profiling across all threads (gh-137471) (gh-137649)

2025-08-11 16:07:21 +00:00

lock.c

[3.13] gh-135871: Fix needless spinning in _PyMutex_LockTimed with zero timeout (gh-135872) (gh-135947)

2025-06-25 17:09:17 +00:00

marshal.c

[3.13] gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) (GH-122012)

2024-07-19 09:13:08 +00:00

modsupport.c

[3.13] gh-132909: handle overflow for 'K' format in do_mkvalue (GH-132911) (#132932 )

2025-04-25 12:44:53 +00:00

mysnprintf.c

…

mystrtoul.c

gh-108765: Python.h no longer includes <ctype.h> (#108831 )

2023-09-03 18:54:27 +02:00

object_stack.c

gh-111968: Split _Py_dictkeys_freelist out of _Py_dict_freelist (gh-115505)

2024-02-16 01:01:36 +00:00

opcode_targets.h

GH-118095: Use broader specializations of CALL in tier 1, for better tier 2 support of calls. (GH-118322)

2024-05-04 12:11:11 +01:00

optimizer_analysis.c

[3.13] gh-120642: Move private PyCode APIs to the internal C API (#120643 ) (#121043 )

2024-06-26 15:35:19 +02:00

optimizer_bytecodes.c

[3.13] gh-119258: Backport optimizer frame fixes in GH-119365 (GH-120699)

2024-06-20 23:55:20 +08:00

optimizer_cases.c.h

[3.13] gh-119258: Backport optimizer frame fixes in GH-119365 (GH-120699)

2024-06-20 23:55:20 +08:00

optimizer_symbols.c

[3.13] gh-120642: Move private PyCode APIs to the internal C API (#120643 ) (#121043 )

2024-06-26 15:35:19 +02:00

optimizer.c

[3.13] gh-120642: Move private PyCode APIs to the internal C API (#120643 ) (#121043 )

2024-06-26 15:35:19 +02:00

parking_lot.c

[3.13] gh-112804: Clamping timeout value for _PySemaphore_PlatformWait (gh-124914) (gh-124991)

2024-10-07 16:53:32 +00:00

pathconfig.c

gh-117987: Restore several functions removed in Python 3.13 alpha 1 (GH-117993)

2024-04-18 15:20:38 +02:00

perf_jit_trampoline.c

[3.13] gh-136541: Fix several problems of perf trampolines in x86_64 and aarch64 (GH-136500) (#136545 )

2025-07-11 14:02:19 +00:00

perf_trampoline.c

[3.13] gh-136541: Fix several problems of perf trampolines in x86_64 and aarch64 (GH-136500) (#136545 )

2025-07-11 14:02:19 +00:00

preconfig.c

…

pyarena.c

…

pyctype.c

…

pyfpe.c

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pyhash.c

[3.13] gh-111389: Add PyHASH_MULTIPLIER constant (GH-119214) (#119334 )

2024-06-04 09:26:25 +02:00

pylifecycle.c

[3.13] gh-87135: Hang non-main threads that attempt to acquire the GIL during finalization (GH-105805) (GH-137827)

2025-08-17 09:08:14 -07:00

pymath.c

…

pystate.c

[3.13] gh-131988: Fix a multithreaded scaling regression (#131989 )

2025-04-07 20:13:02 +02:00

pystrcmp.c

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pystrhex.c

gh-108765: pystrhex: Replace stdlib.h abs() with Py_ABS() (#108830 )

2023-09-02 23:15:54 +02:00

pystrtod.c

gh-108765: Cleanup #include in Python/*.c files (#108977 )

2023-09-06 15:56:08 +02:00

Python-ast.c

[3.13] gh-126105: Fix crash in ast module, when ._fields is deleted (GH-126115) (#126130 )

2024-10-29 16:07:32 +00:00

Python-tokenize.c

[3.13] gh-120317: Lock around global state in the tokenize module (GH-120318) (#121841 )

2024-07-16 10:03:47 +00:00

pythonrun.c

[3.13] gh-137576: Fix for Basic REPL showing incorrect code in tracebacks with PYTHONSTARTUP (GH-137625) (#137778 )

2025-08-15 12:10:39 +03:00

pytime.c

gh-110850: Remove _PyTime_TimeUnchecked() function (#118552 )

2024-05-05 12:15:19 +02:00

qsbr.c

[3.13] GH-133136: Revise QSBR to reduce excess memory held (gh-135473) (gh-136480)

2025-07-30 11:06:44 -07:00

README

…

specialize.c

[3.13] gh-125610: Fix STORE_ATTR_INSTANCE_VALUE specialization check (GH-125612) (GH-127698)

2024-12-06 16:14:26 +00:00

stdlib_module_names.h

[3.13] gh-126925: Modify how iOS test results are gathered (GH-127592) (#127754 )

2024-12-09 14:39:11 +08:00

structmember.c

[3.13] gh-117657: Fix __slots__ thread safety in free-threaded build (GH-119368) (#120655 )

2024-06-17 19:12:25 +00:00

suggestions.c

gh-113845: Fix a compiler warning in Python/suggestions.c (GH-113949)

2024-01-11 20:31:24 +02:00

symtable.c

[3.13] gh-128632: fix segfault on nested __classdict__ type param (GH-128744) (#132085 )

2025-04-04 08:23:40 -07:00

sysmodule.c

gh-133597: Fix memory leak if error occurred in _sys_getwindowsversion_from_kernel32 (GH-133598)

2025-05-08 11:32:59 +00:00

thread_nt.h

[3.13] gh-87135: Hang non-main threads that attempt to acquire the GIL during finalization (GH-105805) (GH-137827)

2025-08-17 09:08:14 -07:00

thread_pthread_stubs.h

GH-110829: Ensure Thread.join() joins the OS thread (#110848 )

2023-11-04 13:59:24 +00:00

thread_pthread.h

[3.13] gh-87135: Hang non-main threads that attempt to acquire the GIL during finalization (GH-105805) (GH-137827)

2025-08-17 09:08:14 -07:00

thread.c

gh-110850: Cleanup PyTime API: PyTime_t are nanoseconds (#115753 )

2024-02-21 11:46:00 +01:00

tier2_engine.md

Docs: fix spelling of the word 'transferring' (#116641 )

2024-03-13 23:53:32 +01:00

traceback.c

[3.13] gh-130163: Fix crashes related to PySys_GetObject() (GH-130503) (GH-130556)

2025-02-25 22:50:26 +00:00

tracemalloc.c

[3.13] gh-128679: Clear the ref tracer in _PyTraceMalloc_Stop() (#129258 )

2025-01-24 14:54:02 +01:00

vm-state.md

High level docs for the VM state (#111621 )

2023-11-01 22:55:10 +00:00

README

Miscellaneous source files for the main Python shared library