memory leak in `cProfile.Profile`
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extension-modules
topic-profiling
type-bug
- Lenguaje dominante
- Python
- Estrellas
- 77.2k
- Forks
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Descripción
Bug report
Bug description:
import cProfile
import sys
class _MonitoringStub:
MISSING = object()
sys.monitoring = _MonitoringStub()
prof = cProfile.Profile()
=================================================================
==1718547==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 40 byte(s) in 1 object(s) allocated from:
#0 0x6338266bcf93 in malloc (/home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/python+0x338f93) (BuildId: 8c1b704a48f26c5c3e2e3abf679137700b62a68e)
#1 0x633826a046fe in _PyMem_DebugRawAlloc /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Objects/obmalloc.c:2887:24
#2 0x633826a046fe in _PyMem_DebugRawMalloc /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Objects/obmalloc.c:2920:12
#3 0x633826a046fe in _PyMem_DebugMalloc /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Objects/obmalloc.c:3085:12
#4 0x633826a4048c in _PyObject_MallocWithType /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Include/internal/pycore_object_alloc.h:46:17
#5 0x633826a4048c in _PyType_AllocNoTrack /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Objects/typeobject.c:2515:19
#6 0x633826a402ed in PyType_GenericAlloc /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Objects/typeobject.c:2546:21
#7 0x633826a4cbed in type_call /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Objects/typeobject.c:2459:11
#8 0x6338268ac2d6 in _PyObject_MakeTpCall /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Objects/call.c:242:18
#9 0x633826c46948 in _PyEval_EvalFrameDefault /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Python/generated_cases.c.h:1620:35
#10 0x633826c14898 in _PyEval_EvalFrame /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Include/internal/pycore_ceval.h:121:16
#11 0x633826c14898 in _PyEval_Vector /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Python/ceval.c:2005:12
#12 0x633826c03b08 in builtin___build_class__ /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Python/bltinmodule.c:205:12
#13 0x6338268ab862 in _PyObject_VectorcallTstate /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Include/internal/pycore_call.h:169:11
#14 0x633826c46948 in _PyEval_EvalFrameDefault /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Python/generated_cases.c.h:1620:35
#15 0x633826c14898 in _PyEval_EvalFrame /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Include/internal/pycore_ceval.h:121:16
#16 0x633826c14898 in _PyEval_Vector /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Python/ceval.c:2005:12
#17 0x633826c13fcb in PyEval_EvalCode /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Python/ceval.c:888:21
#18 0x633826de94f3 in run_eval_code_obj /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Python/pythonrun.c:1365:12
#19 0x633826de94f3 in run_mod /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Python/pythonrun.c:1459:19
#20 0x633826de17bc in pyrun_file /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Python/pythonrun.c:1293:15
#21 0x633826de17bc in _PyRun_SimpleFileObject /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Python/pythonrun.c:521:13
#22 0x633826de0bc2 in _PyRun_AnyFileObject /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Python/pythonrun.c:81:15
#23 0x633826e567d3 in pymain_run_file_obj /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Modules/main.c:410:15
#24 0x633826e567d3 in pymain_run_file /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Modules/main.c:429:15
#25 0x633826e54bc6 in pymain_run_python /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Modules/main.c:691:21
#26 0x633826e54bc6 in Py_RunMain /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Modules/main.c:772:5
#27 0x633826e55837 in pymain_main /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Modules/main.c:802:12
#28 0x633826e559a3 in Py_BytesMain /home/fuzz/WorkSpace/flowfusion-cpython/cpython/build/../Modules/main.c:826:12
#29 0x76cd2ee241c9 (/lib/x86_64-linux-gnu/libc.so.6+0x2a1c9) (BuildId: 282c2c16e7b6600b0b22ea0c99010d2795752b5f)
#30 0x76cd2ee2428a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28a) (BuildId: 282c2c16e7b6600b0b22ea0c99010d2795752b5f)
SUMMARY: AddressSanitizer: 40 byte(s) leaked in 1 allocation(s).
CPython versions tested on:
CPython main branch
Operating systems tested on:
Linux
Guía de contribución
Primeros pasos
- Lee el issue completo y luego la guía de contribución del proyecto.
- Comenta en el issue que vas a ocuparte — evita que dos personas hagan lo mismo.
- Haz un fork del repositorio y trabaja en una rama.
- Abre un pull request que haga referencia al número del issue.
Línea de trabajo
Comienza ejecutando la reproducción proporcionada de cProfile.Profile en CPython main bajo la configuración de Linux AddressSanitizer/LeakSanitizer. Rastrea la asignación reportada para cProfile.Profile y añade o actualiza una prueba de regresión para esta ruta de inicialización; se considera terminado cuando la reproducción deje de informar de la fuga de 40 bytes.
Escrito por el modelo de indexación a partir del texto del issue.
Evaluación
- Stack tecnológico
- python
- Área
- performance, tooling
- Tipo de issue
- Error
- Dificultad
- 4/5
- Tiempo estimado
- 3-5 días
- Estado de actividad
- Estancado
- Claridad
- Bastante claro
- Aptitud para principiantes
- 45/100