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Miss Islington (bot) 636946f413 [3.14] gh-148144: Initialize visited on copied interpreter frames (GH-148143) (#148147) 
gh-148144: Initialize visited on copied interpreter frames (GH-148143)

_PyFrame_Copy() copied interpreter frames into generator and
frame-object storage without initializing the visited byte. Incremental
GC later reads frame->visited in mark_stacks() on non-start passes, so
copied frames could expose an uninitialized value once they became live
on a thread stack again.

Reset visited when copying a frame so copied frames start with defined
GC bookkeeping state. Preserve lltrace in Py_DEBUG builds.
(cherry picked from commit fbfc6ccb0a)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
2026-04-05 23:49:47 +00:00
..
mimalloc
[3.14] Doc: fix duplicated words (GH-136086) (#136108)
2025-06-29 18:45:26 -04:00
pycore_abstract.h
…
pycore_asdl.h
…
pycore_ast_state.h
gh-132661: Implement PEP 750 (#132662)
2025-04-30 11:46:41 +02:00
pycore_ast.h
gh-132661: Implement PEP 750 (#132662)
2025-04-30 11:46:41 +02:00
pycore_atexit.h
gh-131238: Remove pycore_lock.h includes (#131483)
2025-03-19 23:46:25 +00:00
pycore_audit.h
gh-125604: Move _Py_AuditHookEntry, etc. Out of pycore_runtime.h (gh-125605)
2024-10-18 09:26:08 -06:00
pycore_backoff.h
gh-131238: Move pycore_obmalloc.h include to pycore_runtime_structs.h (#131482)
2025-03-19 23:32:30 +00:00
pycore_bitutils.h
…
pycore_blocks_output_buffer.h
…
pycore_brc.h
gh-131238: Remove pycore_lock.h includes (#131483)
2025-03-19 23:46:25 +00:00
pycore_bytes_methods.h
…
pycore_bytesobject.h
[3.14] gh-133767: Fix use-after-free in the unicode-escape decoder with an error handler (GH-129648) (GH-133942)
2025-05-13 16:25:08 +03:00
pycore_c_array.h
gh-130080: move _Py_EnsureArrayLargeEnough to a separate header so it can be used outside of the compiler (#130930)
2025-03-13 16:02:58 +00:00
pycore_call.h
[3.14] gh-145779: Improve classmethod/staticmethod scaling in free-threaded build (gh-145826) (#146088)
2026-03-19 10:49:12 -04:00
pycore_capsule.h
…
pycore_cell.h
[3.14] gh-144490: Fix C++ compatibility in pycore_cell.h (GH-144482) (GH-144555)
2026-02-07 03:37:41 +00:00
pycore_ceval_state.h
gh-131238: Remove pycore_lock.h includes (#131483)
2025-03-19 23:46:25 +00:00
pycore_ceval.h
[3.14] gh-145779: Improve classmethod/staticmethod scaling in free-threaded build (gh-145826) (#146088)
2026-03-19 10:49:12 -04:00
pycore_code.h
[3.14] gh-140815: Fix faulthandler for invalid/freed frame (GH-140921) (#140981)
2025-11-04 11:18:23 +00:00
pycore_codecs.h
gh-131238: Remove pycore_lock.h includes (#131483)
2025-03-19 23:46:25 +00:00
pycore_compile.h
[3.14] gh-131927: Do not emit PEP 765 warnings in ast.parse() (GH-139642) (GH-140786)
2025-10-30 11:25:34 +00:00
pycore_complexobject.h
gh-128813: hide mixed-mode functions for complex arithmetic from C-API (#131703)
2025-04-22 14:18:18 +02:00
pycore_condvar.h
gh-131082: Add missing guards for WIN32_LEAN_AND_MEAN (#131044)
2025-03-11 12:33:01 +01:00
pycore_context.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_critical_section.h
[3.14] gh-133296: Publicly expose critical section API that accepts PyMutex (gh-135899) (#136969)
2025-07-22 12:44:59 +03:00
pycore_crossinterp_data_registry.h
[3.14] gh-132775: Support Fallbacks in _PyObject_GetXIData() (gh-134418)
2025-05-21 14:47:56 +00:00
pycore_crossinterp.h
[3.14] gh-132775: Clean Up Cross-Interpreter Error Handling (gh-135492)
2025-06-14 02:08:25 +00:00
pycore_debug_offsets.h
[3.14] gh-135755: Make Py_MAX_SCRIPT_PATH_SIZE private (GH-138350) (#138356)
2025-09-16 15:49:35 +03:00
pycore_descrobject.h
…
pycore_dict_state.h
gh-124296: Remove private dictionary version tag (PEP 699) (#124472)
2024-10-01 12:39:56 -04:00
pycore_dict.h
[3.14] gh-134043: use stackrefs for dict lookup in _PyObject_GetMethodStackRef (GH-136412) (#146077)
2026-03-17 16:59:26 -04:00
pycore_dtoa.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_emscripten_signal.h
…
pycore_emscripten_trampoline.h
[3.14] gh-145037: Fix Emscripten trampoline with emcc >= 4.0.19 (GH-145038) (#145283)
2026-02-27 08:55:59 +08:00
pycore_exceptions.h
gh-129668: Fix thread-safety of MemoryError freelist in free threaded build (gh-129704)
2025-02-06 12:38:12 -05:00
pycore_faulthandler.h
gh-127604: Add C stack dumps to faulthandler (#128159)
2025-04-21 20:48:02 +01:00
pycore_fileutils_windows.h
…
pycore_fileutils.h
gh-131238: Use pycore_interp_structs.h header (#131481)
2025-03-19 23:13:25 +00:00
pycore_floatobject.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_flowgraph.h
…
pycore_format.h
…
pycore_frame.h
gh-130704: Strength reduce LOAD_FAST{_LOAD_FAST} (#130708)
2025-04-01 10:18:42 -07:00
pycore_freelist_state.h
gh-126703: Add freelist for range and range_iter objects (GH-128619)
2025-04-07 04:40:52 +08:00
pycore_freelist.h
gh-131238: Remove includes from pycore_interp.h (#131495)
2025-03-20 11:35:23 +00:00
pycore_function.h
[3.14] gh-145779: Improve classmethod/staticmethod scaling in free-threaded build (gh-145826) (#146088)
2026-03-19 10:49:12 -04:00
pycore_gc.h
[3.14] GH-139951: Fix major GC performance regression. Backport of GH-140262 (GH-140447)
2025-10-23 15:26:58 +01:00
pycore_genobject.h
gh-131238: Move _Py_VISIT_STACKREF() to pycore_stackref.h (#131560)
2025-03-21 23:24:14 +01:00
pycore_getopt.h
…
pycore_gil.h
…
pycore_global_objects_fini_generated.h
[3.14] gh-91048: Fix external inspection multi-threaded performance (GH-136005) (#136080)
2025-06-28 19:12:54 +01:00
pycore_global_objects.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_global_strings.h
[3.14] gh-91048: Fix external inspection multi-threaded performance (GH-136005) (#136080)
2025-06-28 19:12:54 +01:00
pycore_hamt.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_hashtable.h
…
pycore_import.h
gh-132775: Drop PyUnstable_InterpreterState_GetMainModule() (gh-132978)
2025-04-28 12:46:22 -06:00
pycore_importdl.h
…
pycore_index_pool.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_initconfig.h
[3.14] gh-116749: Fix code comment for _PyConfig_GIL_DEFAULT (gh-141804) (gh-141911)
2025-11-24 16:10:59 +00:00
pycore_instruction_sequence.h
gh-130907: Treat all module-level annotations as conditional (#131550)
2025-04-28 06:10:28 -07:00
pycore_instruments.h
gh-130931: Add pycore_typedefs.h internal header (#131396)
2025-03-19 15:23:32 +01:00
pycore_interp_structs.h
[3.14] gh-143228: Fix UAF in perf trampoline during finalization (GH-143233) (#143247)
2025-12-28 14:32:11 +00:00
pycore_interp.h
gh-131238: Remove includes from pycore_interp.h (#131495)
2025-03-20 11:35:23 +00:00
pycore_interpframe_structs.h
gh-131238: Add pycore_interpframe_structs.h header (#131553)
2025-03-21 17:19:47 +00:00
pycore_interpframe.h
[3.14] gh-148144: Initialize visited on copied interpreter frames (GH-148143) (#148147)
2026-04-05 23:49:47 +00:00
pycore_interpolation.h
gh-132661: Implement PEP 750 (#132662)
2025-04-30 11:46:41 +02:00
pycore_intrinsics.h
…
pycore_jit.h
GH-131498: Remove conditional stack effects (GH-131499)
2025-03-20 15:39:38 +00:00
pycore_list.h
gh-100239: specialize BINARY_OP/SUBSCR for list-slice (#132626)
2025-05-01 10:28:52 +00:00
pycore_llist.h
…
pycore_lock.h
[3.14] gh-134009: Expose PyMutex_IsLocked in the public C API (gh-134365) (#136971)
2025-07-22 12:48:08 +03:00
pycore_long.h
[3.14] gh-143050: Correct PyLong_FromString() to use _PyLong_Negate() (GH-145901) (#147331)
2026-03-31 16:14:12 +02:00
pycore_magic_number.h
[3.14] gh-138349: Fix crash when combining module-level annotation and listcomp (#138363) (#138749)
2025-09-11 08:43:57 +03:00
pycore_memoryobject.h
gh-132776: Revert Moving memoryview XIData Code to memoryobject.c (gh-132960)
2025-04-25 16:43:50 +00:00
pycore_mimalloc.h
…
pycore_modsupport.h
gh-112136: Remove unused #include "pycore_lock.h" (#127093)
2024-11-21 13:50:11 +01:00
pycore_moduleobject.h
gh-132775: Add _PyModule_GetFilenameObject() and _PyModule_GetFilenameUTF8() (gh-132979)
2025-04-28 12:41:32 -06:00
pycore_namespace.h
…
pycore_object_alloc.h
…
pycore_object_deferred.h
…
pycore_object_stack.h
gh-125859: Fix crash when gc.get_objects is called during GC (#125882)
2024-10-24 09:33:11 -04:00
pycore_object_state.h
gh-125604: Move _Py_AuditHookEntry, etc. Out of pycore_runtime.h (gh-125605)
2024-10-18 09:26:08 -06:00
pycore_object.h
[3.14] gh-145779: Improve classmethod/staticmethod scaling in free-threaded build (gh-145826) (#146088)
2026-03-19 10:49:12 -04:00
pycore_obmalloc_init.h
…
pycore_obmalloc.h
gh-92953: Improve nextpool/prevpool comment. (gh-125545)
2024-10-15 11:47:20 -07:00
pycore_opcode_metadata.h
[3.14] gh-144012: Check null binary op extend (GH-144014) (GH-144038)
2026-01-20 18:05:56 +00:00
pycore_opcode_utils.h
[3.14] gh-132775: Unrevert "Add _PyCode_VerifyStateless()" (gh-133625)
2025-05-08 00:00:33 +00:00
pycore_optimizer.h
GH-133231: Changes to executor management to support proposed sys._jit module (GH-133287)
2025-05-04 10:05:35 +01:00
pycore_parking_lot.h
…
pycore_parser.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_pathconfig.h
…
pycore_pyarena.h
…
pycore_pyatomic_ft_wrappers.h
[3.14] gh-145685: Improve scaling of type attribute lookups (gh-145774) (#145874)
2026-03-12 14:33:05 -04:00
pycore_pybuffer.h
…
pycore_pyerrors.h
[3.14] gh-132775: Use _PyFunction_VerifyStateless() and _PyCode_VerifyStateless() (gh-134465)
2025-05-21 20:43:29 +00:00
pycore_pyhash.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_pylifecycle.h
[3.14] gh-136421: Load _datetime static types during interpreter initialization (GH-136583) (GH-136943)
2025-07-21 19:23:05 -04:00
pycore_pymath.h
[3.14] gh-142342: Fix m68k assembler operand constraints for %fpcr access (gh-142343) (#142458)
2025-12-09 14:13:31 +00:00
pycore_pymem_init.h
…
pycore_pymem.h
[3.14] gh-116008: Detect freed thread state in faulthandler (GH-141988) (#142013)
2025-11-27 20:34:00 +00:00
pycore_pystate.h
[3.14] GH-139914: Handle stack growth direction on HPPA (GH-140028) (#141404)
2025-11-23 15:55:33 -08:00
pycore_pystats.h
…
pycore_pythonrun.h
[3.14] gh-140222: Increase stack margin on debug build (GH-142452) (#142471)
2025-12-09 15:59:42 +00:00
pycore_pythread.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_qsbr.h
[3.14] gh-144438: Fix false sharing between QSBR and tlbc_index (gh-144554) (#144923)
2026-03-31 19:20:24 +00:00
pycore_range.h
…
pycore_runtime_init_generated.h
[3.14] gh-91048: Fix external inspection multi-threaded performance (GH-136005) (#136080)
2025-06-28 19:12:54 +01:00
pycore_runtime_init.h
Remove duplicate includes: Include/internal/ (#132624)
2025-05-06 02:08:42 +01:00
pycore_runtime_structs.h
[3.14] gh-145037: Fix Emscripten trampoline with emcc >= 4.0.19 (GH-145038) (#145283)
2026-02-27 08:55:59 +08:00
pycore_runtime.h
gh-131238: Use pycore_interp_structs.h header (#131481)
2025-03-19 23:13:25 +00:00
pycore_semaphore.h
gh-131082: Add missing guards for WIN32_LEAN_AND_MEAN (#131044)
2025-03-11 12:33:01 +01:00
pycore_setobject.h
gh-130312: SET_ADD should not lock (#130136)
2025-03-21 15:58:32 -07:00
pycore_signal.h
…
pycore_sliceobject.h
…
pycore_stackref.h
[3.14] gh-145779: Improve classmethod/staticmethod scaling in free-threaded build (gh-145826) (#146088)
2026-03-19 10:49:12 -04:00
pycore_stats.h
[3.14] gh-138264: Fix gcc 14 compiler warnings (GH-138265) (GH-138426)
2025-10-07 22:26:05 +02:00
pycore_strhex.h
…
pycore_structs.h
GH-131498: Cases generator: manage stacks automatically (GH-132074)
2025-04-04 17:59:36 +01:00
pycore_structseq.h
…
pycore_symtable.h
gh-130924: Do not create cells for usages of names in local annotations (#131843)
2025-03-29 21:15:48 +00:00
pycore_sysmodule.h
gh-131591: Implement PEP 768 (#131937)
2025-04-03 16:20:01 +01:00
pycore_template.h
gh-132661: Implement PEP 750 (#132662)
2025-04-30 11:46:41 +02:00
pycore_time.h
gh-131238: Use pycore_interp_structs.h header (#131481)
2025-03-19 23:13:25 +00:00
pycore_token.h
gh-132661: Implement PEP 750 (#132662)
2025-04-30 11:46:41 +02:00
pycore_traceback.h
[3.14] gh-125434: Display thread name in faulthandler on Windows (#142011)
2025-11-27 12:05:37 +00:00
pycore_tracemalloc.h
[3.14] gh-143057: avoid locking in tracemalloc C-APIs when it is not enabled (GH-143065) (#143071)
2025-12-22 16:04:24 +00:00
pycore_tstate.h
[3.14] gh-144438: Fix false sharing between QSBR and tlbc_index (gh-144554) (#144923)
2026-03-31 19:20:24 +00:00
pycore_tuple.h
gh-131525: Cache the result of tuple_hash (#131529)
2025-03-27 09:57:06 -04:00
pycore_typedefs.h
gh-130931: Add pycore_typedefs.h internal header (#131396)
2025-03-19 15:23:32 +01:00
pycore_typeobject.h
[3.14] gh-123241: Don't modify ref count during visitation (GH-142232) (#142567)
2025-12-11 10:51:11 -08:00
pycore_typevarobject.h
…
pycore_ucnhash.h
…
pycore_unicodeobject_generated.h
[3.14] gh-91048: Fix external inspection multi-threaded performance (GH-136005) (#136080)
2025-06-28 19:12:54 +01:00
pycore_unicodeobject.h
[3.14] gh-133767: Fix use-after-free in the unicode-escape decoder with an error handler (GH-129648) (GH-133942)
2025-05-13 16:25:08 +03:00
pycore_unionobject.h
gh-105499: Merge typing.Union and types.UnionType (#105511)
2025-03-04 11:44:19 -08:00
pycore_uniqueid.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_uop_ids.h
GH-131798: Split CALL_LEN into several uops (GH-133180)
2025-05-05 14:31:48 -07:00
pycore_uop_metadata.h
[3.14] gh-144012: Check null binary op extend (GH-144014) (GH-144038)
2026-01-20 18:05:56 +00:00
pycore_warnings.h
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
pycore_weakref.h
[3.14] gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614) (#136119)
2025-06-30 15:59:22 +02:00