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data race in update_one_slot in typeobject.c #131105

Closed as duplicate
Closed as duplicate
data race in update_one_slot in typeobject.c#131105
Labels
topic-free-threading

Description

@kumaraditya303
kumaraditya303
opened on Mar 11, 2025

While running the asyncio tests locally on forever mode on current main, tsan produces warning about data race in update_one_slot.

WARNING: ThreadSanitizer: data race (pid=3650)
  Write of size 8 at 0x7f8be0a55fb0 by thread T34:
    #0 update_one_slot Objects/typeobject.c:11170 (python+0x25eed5) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #1 update_slots_callback Objects/typeobject.c:11183 (python+0x25efcc) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #2 update_subclasses Objects/typeobject.c:11362 (python+0x2524b9) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #3 update_slot Objects/typeobject.c:11221 (python+0x252714) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #4 type_update_dict Objects/typeobject.c:5976 (python+0x252881) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #5 type_setattro Objects/typeobject.c:6050 (python+0x25e52c) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #6 PyObject_SetAttr Objects/object.c:1444 (python+0x202626) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #7 _PyEval_EvalFrameDefault Python/generated_cases.c.h:10641 (python+0x36b2dd) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #8 _PyEval_EvalFrame Include/internal/pycore_ceval.h:116 (python+0x372744) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #9 _PyEval_Vector Python/ceval.c:1838 (python+0x3729ca) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #10 _PyFunction_Vectorcall Objects/call.c:413 (python+0x170cee) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #11 _PyObject_VectorcallTstate Include/internal/pycore_call.h:167 (python+0x175493) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #12 method_vectorcall Objects/classobject.c:72 (python+0x1757b3) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #13 _PyVectorcall_Call Objects/call.c:273 (python+0x1730fd) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #14 _PyObject_Call Objects/call.c:348 (python+0x173528) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #15 PyObject_Call Objects/call.c:373 (python+0x17358c) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #16 thread_run Modules/_threadmodule.c:351 (python+0x4e41ae) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #17 pythread_wrapper Python/thread_pthread.h:242 (python+0x43aa76) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)

  Previous write of size 8 at 0x7f8be0a55fb0 by main thread:
    #0 _Py_slot_tp_getattr_hook Objects/typeobject.c:10125 (python+0x25e726) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #1 PyObject_GetAttr Objects/object.c:1290 (python+0x202aef) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #2 _PyEval_EvalFrameDefault Python/generated_cases.c.h:7722 (python+0x35d481) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #3 _PyEval_EvalFrame Include/internal/pycore_ceval.h:116 (python+0x372744) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #4 _PyEval_Vector Python/ceval.c:1838 (python+0x3729ca) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #5 _PyFunction_Vectorcall Objects/call.c:413 (python+0x170cee) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #6 _PyObject_VectorcallTstate Include/internal/pycore_call.h:167 (python+0x175493) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #7 method_vectorcall Objects/classobject.c:94 (python+0x175671) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #8 _PyVectorcall_Call Objects/call.c:273 (python+0x1730fd) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #9 _PyObject_Call Objects/call.c:348 (python+0x173528) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #10 PyObject_Call Objects/call.c:373 (python+0x17358c) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #11 _PyEval_EvalFrameDefault Python/generated_cases.c.h:2424 (python+0x343c2e) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #12 _PyEval_EvalFrame Include/internal/pycore_ceval.h:116 (python+0x372744) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #13 _PyEval_Vector Python/ceval.c:1838 (python+0x3729ca) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #14 _PyFunction_Vectorcall Objects/call.c:413 (python+0x170cee) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #15 _PyObject_VectorcallDictTstate Objects/call.c:135 (python+0x172d30) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #16 _PyObject_Call_Prepend Objects/call.c:504 (python+0x173005) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #17 slot_tp_call Objects/typeobject.c:10058 (python+0x25acb2) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #18 _PyObject_MakeTpCall Objects/call.c:242 (python+0x170f44) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #19 _PyObject_VectorcallTstate Include/internal/pycore_call.h:165 (python+0x1711d5) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #20 PyObject_Vectorcall Objects/call.c:327 (python+0x17128d) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #21 _PyEval_EvalFrameDefault Python/generated_cases.c.h:3837 (python+0x34afe6) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #22 _PyEval_EvalFrame Include/internal/pycore_ceval.h:116 (python+0x372744) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #23 _PyEval_Vector Python/ceval.c:1838 (python+0x3729ca) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #24 _PyFunction_Vectorcall Objects/call.c:413 (python+0x170cee) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #25 _PyObject_VectorcallTstate Include/internal/pycore_call.h:167 (python+0x175493) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #26 method_vectorcall Objects/classobject.c:94 (python+0x175671) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #27 _PyVectorcall_Call Objects/call.c:273 (python+0x1730fd) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #28 _PyObject_Call Objects/call.c:348 (python+0x173528) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #29 PyObject_Call Objects/call.c:373 (python+0x17358c) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #30 _PyEval_EvalFrameDefault Python/generated_cases.c.h:2424 (python+0x343c2e) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #31 _PyEval_EvalFrame Include/internal/pycore_ceval.h:116 (python+0x372744) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #32 _PyEval_Vector Python/ceval.c:1838 (python+0x3729ca) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #33 _PyFunction_Vectorcall Objects/call.c:413 (python+0x170cee) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #34 _PyObject_VectorcallDictTstate Objects/call.c:135 (python+0x172d30) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #35 _PyObject_Call_Prepend Objects/call.c:504 (python+0x173005) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #36 slot_tp_call Objects/typeobject.c:10058 (python+0x25acb2) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #37 _PyObject_MakeTpCall Objects/call.c:242 (python+0x170f44) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #38 _PyObject_VectorcallTstate Include/internal/pycore_call.h:165 (python+0x1711d5) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #39 PyObject_Vectorcall Objects/call.c:327 (python+0x17128d) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #40 _PyEval_EvalFrameDefault Python/generated_cases.c.h:3837 (python+0x34afe6) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #41 _PyEval_EvalFrame Include/internal/pycore_ceval.h:116 (python+0x372744) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #42 _PyEval_Vector Python/ceval.c:1838 (python+0x3729ca) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #43 _PyFunction_Vectorcall Objects/call.c:413 (python+0x170cee) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #44 _PyObject_VectorcallTstate Include/internal/pycore_call.h:167 (python+0x175493) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #45 method_vectorcall Objects/classobject.c:94 (python+0x175671) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #46 _PyVectorcall_Call Objects/call.c:273 (python+0x1730fd) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #47 _PyObject_Call Objects/call.c:348 (python+0x173528) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #48 PyObject_Call Objects/call.c:373 (python+0x17358c) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #49 _PyEval_EvalFrameDefault Python/generated_cases.c.h:2424 (python+0x343c2e) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #50 _PyEval_EvalFrame Include/internal/pycore_ceval.h:116 (python+0x372744) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #51 _PyEval_Vector Python/ceval.c:1838 (python+0x3729ca) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #52 _PyFunction_Vectorcall Objects/call.c:413 (python+0x170cee) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #53 _PyObject_VectorcallDictTstate Objects/call.c:135 (python+0x172d30) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #54 _PyObject_Call_Prepend Objects/call.c:504 (python+0x173005) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #55 slot_tp_call Objects/typeobject.c:10058 (python+0x25acb2) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #56 _PyObject_MakeTpCall Objects/call.c:242 (python+0x170f44) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #57 _PyObject_VectorcallTstate Include/internal/pycore_call.h:165 (python+0x1711d5) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #58 PyObject_Vectorcall Objects/call.c:327 (python+0x17128d) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #59 _PyEval_EvalFrameDefault Python/generated_cases.c.h:1375 (python+0x33ee3f) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #60 _PyEval_EvalFrame Include/internal/pycore_ceval.h:116 (python+0x372744) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #61 _PyEval_Vector Python/ceval.c:1838 (python+0x3729ca) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #62 PyEval_EvalCode Python/ceval.c:766 (python+0x372b3f) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #63 builtin_exec_impl Python/bltinmodule.c:1165 (python+0x32b0b2) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #64 builtin_exec Python/clinic/bltinmodule.c.h:560 (python+0x32b1fe) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #65 cfunction_vectorcall_FASTCALL_KEYWORDS Objects/methodobject.c:452 (python+0x1f7208) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #66 _PyObject_VectorcallTstate Include/internal/pycore_call.h:167 (python+0x171144) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #67 PyObject_Vectorcall Objects/call.c:327 (python+0x17128d) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #68 _PyEval_EvalFrameDefault Python/generated_cases.c.h:1375 (python+0x33ee3f) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #69 _PyEval_EvalFrame Include/internal/pycore_ceval.h:116 (python+0x372744) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #70 _PyEval_Vector Python/ceval.c:1838 (python+0x3729ca) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #71 _PyFunction_Vectorcall Objects/call.c:413 (python+0x170cee) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #72 _PyVectorcall_Call Objects/call.c:273 (python+0x1730fd) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #73 _PyObject_Call Objects/call.c:348 (python+0x173528) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #74 PyObject_Call Objects/call.c:373 (python+0x17358c) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #75 pymain_run_module Modules/main.c:337 (python+0x456176) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #76 pymain_run_python Modules/main.c:673 (python+0x45731d) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #77 Py_RunMain Modules/main.c:760 (python+0x4576de) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #78 pymain_main Modules/main.c:790 (python+0x457795) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #79 Py_BytesMain Modules/main.c:814 (python+0x4578f4) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #80 main Programs/python.c:15 (python+0x85b3b) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)



  Thread T34 'Thread-34 (writ' (tid=4140, running) created by main thread at:
    #0 pthread_create ../../../../src/libsanitizer/tsan/tsan_interceptors_posix.cpp:1022 (libtsan.so.2+0x5ac1a) (BuildId: 38097064631f7912bd33117a9c83d08b42e15571)
    #1 do_start_joinable_thread Python/thread_pthread.h:289 (python+0x43aec7) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #2 PyThread_start_joinable_thread Python/thread_pthread.h:313 (python+0x43b0bd) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #3 ThreadHandle_start Modules/_threadmodule.c:436 (python+0x4e3b43) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #4 do_start_new_thread Modules/_threadmodule.c:1820 (python+0x4e3d4c) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #5 thread_PyThread_start_joinable_thread Modules/_threadmodule.c:1943 (python+0x4e3fba) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #6 cfunction_call Objects/methodobject.c:551 (python+0x1f80e9) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #7 _PyObject_MakeTpCall Objects/call.c:242 (python+0x170f44) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #8 _PyObject_VectorcallTstate Include/internal/pycore_call.h:165 (python+0x1711d5) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #9 PyObject_Vectorcall Objects/call.c:327 (python+0x17128d) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #10 _PyEval_EvalFrameDefault Python/generated_cases.c.h:3012 (python+0x346d28) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #11 _PyEval_EvalFrame Include/internal/pycore_ceval.h:116 (python+0x372744) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #12 _PyEval_Vector Python/ceval.c:1838 (python+0x3729ca) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #13 _PyFunction_Vectorcall Objects/call.c:413 (python+0x170cee) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #14 _PyObject_VectorcallTstate Include/internal/pycore_call.h:167 (python+0x175493) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #15 method_vectorcall Objects/classobject.c:94 (python+0x175671) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #16 _PyVectorcall_Call Objects/call.c:273 (python+0x1730fd) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #17 _PyObject_Call Objects/call.c:348 (python+0x173528) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #18 PyObject_Call Objects/call.c:373 (python+0x17358c) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #19 _PyEval_EvalFrameDefault Python/generated_cases.c.h:2424 (python+0x343c2e) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #20 _PyEval_EvalFrame Include/internal/pycore_ceval.h:116 (python+0x372744) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #21 _PyEval_Vector Python/ceval.c:1838 (python+0x3729ca) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #22 _PyFunction_Vectorcall Objects/call.c:413 (python+0x170cee) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #23 _PyObject_VectorcallDictTstate Objects/call.c:135 (python+0x172d30) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #24 _PyObject_Call_Prepend Objects/call.c:504 (python+0x173005) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #25 slot_tp_call Objects/typeobject.c:10058 (python+0x25acb2) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #26 _PyObject_MakeTpCall Objects/call.c:242 (python+0x170f44) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #27 _PyObject_VectorcallTstate Include/internal/pycore_call.h:165 (python+0x1711d5) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #28 PyObject_Vectorcall Objects/call.c:327 (python+0x17128d) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #29 _PyEval_EvalFrameDefault Python/generated_cases.c.h:3837 (python+0x34afe6) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #30 _PyEval_EvalFrame Include/internal/pycore_ceval.h:116 (python+0x372744) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #31 _PyEval_Vector Python/ceval.c:1838 (python+0x3729ca) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #32 _PyFunction_Vectorcall Objects/call.c:413 (python+0x170cee) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #33 _PyObject_VectorcallTstate Include/internal/pycore_call.h:167 (python+0x175493) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #34 method_vectorcall Objects/classobject.c:94 (python+0x175671) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #35 _PyVectorcall_Call Objects/call.c:273 (python+0x1730fd) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #36 _PyObject_Call Objects/call.c:348 (python+0x173528) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #37 PyObject_Call Objects/call.c:373 (python+0x17358c) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #38 _PyEval_EvalFrameDefault Python/generated_cases.c.h:2424 (python+0x343c2e) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #39 _PyEval_EvalFrame Include/internal/pycore_ceval.h:116 (python+0x372744) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #40 _PyEval_Vector Python/ceval.c:1838 (python+0x3729ca) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #41 _PyFunction_Vectorcall Objects/call.c:413 (python+0x170cee) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #42 _PyObject_VectorcallDictTstate Objects/call.c:135 (python+0x172d30) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #43 _PyObject_Call_Prepend Objects/call.c:504 (python+0x173005) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #44 slot_tp_call Objects/typeobject.c:10058 (python+0x25acb2) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #45 _PyObject_MakeTpCall Objects/call.c:242 (python+0x170f44) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #46 _PyObject_VectorcallTstate Include/internal/pycore_call.h:165 (python+0x1711d5) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #47 PyObject_Vectorcall Objects/call.c:327 (python+0x17128d) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #48 _PyEval_EvalFrameDefault Python/generated_cases.c.h:3837 (python+0x34afe6) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #49 _PyEval_EvalFrame Include/internal/pycore_ceval.h:116 (python+0x372744) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #50 _PyEval_Vector Python/ceval.c:1838 (python+0x3729ca) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #51 _PyFunction_Vectorcall Objects/call.c:413 (python+0x170cee) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #52 _PyObject_VectorcallTstate Include/internal/pycore_call.h:167 (python+0x175493) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #53 method_vectorcall Objects/classobject.c:94 (python+0x175671) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #54 _PyVectorcall_Call Objects/call.c:273 (python+0x1730fd) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #55 _PyObject_Call Objects/call.c:348 (python+0x173528) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #56 PyObject_Call Objects/call.c:373 (python+0x17358c) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #57 _PyEval_EvalFrameDefault Python/generated_cases.c.h:2424 (python+0x343c2e) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #58 _PyEval_EvalFrame Include/internal/pycore_ceval.h:116 (python+0x372744) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #59 _PyEval_Vector Python/ceval.c:1838 (python+0x3729ca) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #60 _PyFunction_Vectorcall Objects/call.c:413 (python+0x170cee) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #61 _PyObject_VectorcallDictTstate Objects/call.c:135 (python+0x172d30) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #62 _PyObject_Call_Prepend Objects/call.c:504 (python+0x173005) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #63 slot_tp_call Objects/typeobject.c:10058 (python+0x25acb2) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #64 _PyObject_MakeTpCall Objects/call.c:242 (python+0x170f44) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #65 _PyObject_VectorcallTstate Include/internal/pycore_call.h:165 (python+0x1711d5) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #66 PyObject_Vectorcall Objects/call.c:327 (python+0x17128d) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #67 _PyEval_EvalFrameDefault Python/generated_cases.c.h:1375 (python+0x33ee3f) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #68 _PyEval_EvalFrame Include/internal/pycore_ceval.h:116 (python+0x372744) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #69 _PyEval_Vector Python/ceval.c:1838 (python+0x3729ca) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #70 PyEval_EvalCode Python/ceval.c:766 (python+0x372b3f) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #71 builtin_exec_impl Python/bltinmodule.c:1165 (python+0x32b0b2) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #72 builtin_exec Python/clinic/bltinmodule.c.h:560 (python+0x32b1fe) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #73 cfunction_vectorcall_FASTCALL_KEYWORDS Objects/methodobject.c:452 (python+0x1f7208) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #74 _PyObject_VectorcallTstate Include/internal/pycore_call.h:167 (python+0x171144) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #75 PyObject_Vectorcall Objects/call.c:327 (python+0x17128d) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #76 _PyEval_EvalFrameDefault Python/generated_cases.c.h:1375 (python+0x33ee3f) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #77 _PyEval_EvalFrame Include/internal/pycore_ceval.h:116 (python+0x372744) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #78 _PyEval_Vector Python/ceval.c:1838 (python+0x3729ca) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #79 _PyFunction_Vectorcall Objects/call.c:413 (python+0x170cee) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #80 _PyVectorcall_Call Objects/call.c:273 (python+0x1730fd) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #81 _PyObject_Call Objects/call.c:348 (python+0x173528) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #82 PyObject_Call Objects/call.c:373 (python+0x17358c) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #83 pymain_run_module Modules/main.c:337 (python+0x456176) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #84 pymain_run_python Modules/main.c:673 (python+0x45731d) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #85 Py_RunMain Modules/main.c:760 (python+0x4576de) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #86 pymain_main Modules/main.c:790 (python+0x457795) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #87 Py_BytesMain Modules/main.c:814 (python+0x4578f4) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)
    #88 main Programs/python.c:15 (python+0x85b3b) (BuildId: e9c7424f4464401791549097ef8c22a121a12728)

SUMMARY: ThreadSanitizer: data race Objects/typeobject.c:11170 in update_one_slot

Activity

  1. kumaraditya303
    added
    topic-free-threading
    on Mar 11, 2025

  2. kumaraditya303 commented on Mar 11, 2025

    @kumaraditya303
    kumaraditya303
    on Mar 11, 2025
    ContributorAuthor

    Ah, the newer suppressions file contains this as suppression f151d27, seems my setup was using an older one.

  3. colesbury commented on Mar 11, 2025

    @colesbury
    colesbury
    on Mar 11, 2025
    Contributor

    I think this is covered by #127266

  4. kumaraditya303
    closed this as a duplicateof Type slots are not thread-safe in free-threaded builds #127266 on Mar 12, 2025
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