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Miss Islington (bot) ee7d2681f6
[3.13] gh-117657: Fix race involving GC and heap initialization (GH-119923) (#120038) 
The `_PyThreadState_Bind()` function is called before the first
`PyEval_AcquireThread()` so it's not synchronized with the stop the
world GC. We had a race where `gc_visit_heaps()` might visit a thread's
heap while it's being initialized.

Use a simple atomic int to avoid visiting heaps for threads that are not
yet fully initialized (i.e., before `tstate_mimalloc_bind()` is called).

The race was reproducible by running:
`python Lib/test/test_importlib/partial/pool_in_threads.py`.
(cherry picked from commit e69d068ad0)

Co-authored-by: Sam Gross <colesbury@gmail.com>
2024-06-04 14:08:10 +00:00
..
clinic gh-111201: A new Python REPL (GH-111567) 2024-05-05 21:32:23 +02:00
frozen_modules
_warnings.c [3.13] gh-119049: Fix incorrect display of warning which is constructed by C API (GH-119063) (GH-119106) 2024-05-17 18:16:58 +03:00
adaptive.md
asdl.c
asm_trampoline.S
assemble.c gh-117494: extract the Instruction Sequence data structure into a separate file (#117496) 2024-04-04 15:47:26 +00:00
ast.c gh-116126: Implement PEP 696 (#116129) 2024-05-03 06:17:32 -07:00
ast_opt.c
ast_unparse.c
bltinmodule.c [3.13] gh-117657: Fix race involving immortalizing objects (GH-119927) (#120005) 2024-06-03 22:21:32 +00:00
bootstrap_hash.c
brc.c gh-110481: Fix biased reference counting queue initialization. (#117271) 2024-03-28 09:28:39 -04:00
bytecodes.c [3.13] gh-119821: Support non-dict globals in LOAD_FROM_DICT_OR_GLOBALS (#119822) (#119889) 2024-05-31 21:56:26 -07:00
ceval.c [3.13] gh-118692: Avoid creating unnecessary StopIteration instances for monitoring (GH-119216) (#119497) 2024-05-24 10:18:13 +00:00
ceval_gil.c [3.13] gh-118727: Don't drop the GIL in drop_gil() unless the current thread holds it (GH-118745) (#119474) 2024-05-23 21:27:38 +00:00
ceval_macros.h gh-107674: Improve performance of sys.settrace (GH-117133) 2024-05-03 19:49:24 +01:00
codecs.c gh-116738: Make _codecs module thread-safe (#117530) 2024-05-02 18:25:36 -04:00
compile.c [3.13] gh-119311: Fix name mangling with PEP 695 generic classes (#119464) (#119643) 2024-05-28 11:03:33 -07:00
condvar.h
config_common.h gh-76785: Add PyInterpreterConfig Helpers (gh-117170) 2024-04-02 20:35:52 +00:00
context.c
critical_section.c
crossinterp.c gh-76785: Handle Legacy Interpreters Properly (gh-117490) 2024-04-11 23:23:25 +00:00
crossinterp_data_lookup.h
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
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
dynamic_annotations.c
dynload_hpux.c
dynload_shlib.c
dynload_stub.c
dynload_win.c
emscripten_signal.c
emscripten_trampoline.c
errors.c gh-118379: Use PyTuple_Pack instead of Py_BuildValue if possible (GH-118381) 2024-04-30 17:55:15 +03:00
executor_cases.c.h [3.13] gh-119821: Support non-dict globals in LOAD_FROM_DICT_OR_GLOBALS (#119822) (#119889) 2024-05-31 21:56:26 -07:00
fileutils.c gh-118422: Fix run_fileexflags() test (#118429) 2024-04-30 22:32:55 +02:00
flowgraph.c gh-117494: extract the Instruction Sequence data structure into a separate file (#117496) 2024-04-04 15:47:26 +00:00
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
frozenmain.c
future.c gh-118216: Don't consider dotted __future__ imports (#118267) 2024-05-02 06:32:20 -07:00
gc.c gh-110850: Remove _PyTime_TimeUnchecked() function (#118552) 2024-05-05 12:15:19 +02:00
gc_free_threading.c [3.13] gh-117657: Fix race involving GC and heap initialization (GH-119923) (#120038) 2024-06-04 14:08:10 +00:00
gc_gil.c
generated_cases.c.h [3.13] gh-119821: Support non-dict globals in LOAD_FROM_DICT_OR_GLOBALS (#119822) (#119889) 2024-05-31 21:56:26 -07:00
getargs.c [3.13] gh-119213: Be More Careful About _PyArg_Parser.kwtuple Across Interpreters (gh-119331) (gh-119410) 2024-05-22 12:09:48 -06:00
getcompiler.c
getcopyright.c
getopt.c
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
hashtable.c
import.c [3.13] gh-119584: Fix test_import Failed Assertion (gh-119623) (gh-119633) 2024-05-27 20:04:13 +00:00
importdl.c gh-117953: Imply Single-phase Init if the Init Function Fails (gh-118684) 2024-05-06 21:16:22 -06:00
initconfig.c gh-118518: Rename PYTHONPERFJITSUPPORT and -X perfjit with underscores (#118693) 2024-05-07 11:47:21 +00:00
instruction_sequence.c gh-117680: Fix msvc warning in instruction_sequence.c (#118326) 2024-04-26 17:20:30 +01:00
instrumentation.c [3.13] gh-111997: Fix argument count for LINE event and clarify type of argument counts. (GH-119179) (GH-119575) 2024-05-26 12:59:29 +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 gh-74929: Implement PEP 667 (GH-115153) 2024-05-04 12:12:10 +01:00
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 gh-107674: Lazy load line number to improve performance of tracing (GH-118127) 2024-04-29 09:54:52 +01:00
lock.c gh-110850: Remove _PyTime_TimeUnchecked() function (#118552) 2024-05-05 12:15:19 +02:00
marshal.c gh-116322: Add Py_mod_gil module slot (#116882) 2024-05-03 11:30:55 -04:00
modsupport.c
mysnprintf.c
mystrtoul.c
object_stack.c
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.c [3.13] gh-111389: Add PyHASH_MULTIPLIER constant (GH-119214) (#119334) 2024-06-04 09:26:25 +02:00
optimizer_analysis.c gh-118335: Configure Tier 2 interpreter at build time (#118339) 2024-04-30 18:26:34 -07:00
optimizer_bytecodes.c 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_cases.c.h [3.13] gh-119821: Support non-dict globals in LOAD_FROM_DICT_OR_GLOBALS (#119822) (#119889) 2024-05-31 21:56:26 -07:00
optimizer_symbols.c GH-118095: Unify the behavior of tier 2 FOR_ITER branch micro-ops (GH-118420) 2024-05-02 16:17:59 +01:00
parking_lot.c [3.13] gh-117657: Avoid sem_clockwait in TSAN (GH-119915) (#119992) 2024-06-03 18:07:22 +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-118844: Fix build failures when combining --disable-gil with --enable-experimental-jit (GH-118959) 2024-05-13 04:53:30 +00:00
perf_trampoline.c gh-118518: Allow perf to work without frame pointers (#112254) 2024-05-05 03:07:29 +02:00
preconfig.c
pyarena.c
pyctype.c
pyfpe.c
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-111499: Fix PYTHONMALLOCSTATS at Python exit (GH-120021) (#120022) 2024-06-04 10:02:12 +00:00
pymath.c
pystate.c [3.13] gh-117657: Fix race involving GC and heap initialization (GH-119923) (#120038) 2024-06-04 14:08:10 +00:00
pystrcmp.c
pystrhex.c
pystrtod.c
Python-ast.c [3.13] gh-118851: Default ctx arguments to AST constructors to Load() (GH-118854) (#118871) 2024-05-09 22:52:42 +00:00
Python-tokenize.c [3.13] gh-119704: Fix reference leak in the `Python/Python-tokenize.c` (GH-119705) (#119707) 2024-05-29 07:26:13 +00:00
pythonrun.c gh-111201: A new Python REPL (GH-111567) 2024-05-05 21:32:23 +02:00
pytime.c gh-110850: Remove _PyTime_TimeUnchecked() function (#118552) 2024-05-05 12:15:19 +02:00
qsbr.c [3.13] gh-117657: Fix TSAN race in QSBR assertion (GH-119887) (#119904) 2024-06-01 14:51:55 +00:00
README
specialize.c 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
stdlib_module_names.h gh-111201: A new Python REPL (GH-111567) 2024-05-05 21:32:23 +02:00
structmember.c
suggestions.c
symtable.c [3.13] gh-119311: Fix name mangling with PEP 695 generic classes (#119464) (#119643) 2024-05-28 11:03:33 -07:00
sysmodule.c [3.13] gh-74929: PEP 667 C API documentation (gh-119892) 2024-06-01 04:23:04 +00:00
thread.c
thread_nt.h gh-110850: Use _PyDeadline_Get() in EnterNonRecursiveMutex() (#118556) 2024-05-04 09:39:58 +02:00
thread_pthread.h gh-110850: Remove _PyTime_TimeUnchecked() function (#118552) 2024-05-05 12:15:19 +02:00
thread_pthread_stubs.h
tier2_engine.md
traceback.c gh-117764: Fix and add signatures for many builtins (GH-117769) 2024-04-12 13:56:41 +03:00
tracemalloc.c [3.13] gh-111389: Add PyHASH_MULTIPLIER constant (GH-119214) (#119334) 2024-06-04 09:26:25 +02:00
vm-state.md

README 

Miscellaneous source files for the main Python shared library