Open
Description
Describe the issue:
>>> import numpy
>>> numpy.__version__
'1.24.3'
>>> class X(numpy.flexible, numpy.ma.core.MaskedArray): pass
...
>>> with memoryview(X()): pass
...
zsh: segmentation fault python
Reproduce the code example:
import numpy
class X(numpy.flexible, numpy.ma.core.MaskedArray): pass
with memoryview(X()): passError message:
(lldb) target create "/Users/jelle/py/venvs/py311/bin/python"
Current executable set to '/Users/jelle/py/venvs/py311/bin/python' (arm64).
(lldb) r
Process 62767 launched: '/Users/jelle/py/venvs/py311/bin/python' (arm64)
Python 3.11.1 (main, Dec 21 2022, 16:19:04) [Clang 14.0.0 (clang-1400.0.29.202)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import numpy
>>> numpy.__version__
'1.24.3'
>>> class X(numpy.flexible, numpy.ma.core.MaskedArray):
... pass
...
>>> with memoryview(X()): pass
...
Process 62767 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=2, address=0x16edfffc0)
frame #0: 0x00000001a4226994 libsystem_malloc.dylib`nanov2_allocate_from_block + 8
libsystem_malloc.dylib`nanov2_allocate_from_block:
-> 0x1a4226994 <+8>: stp x28, x27, [sp, #0x20]
0x1a4226998 <+12>: stp x26, x25, [sp, #0x30]
0x1a422699c <+16>: stp x24, x23, [sp, #0x40]
0x1a42269a0 <+20>: stp x22, x21, [sp, #0x50]
Target 0: (python) stopped.
(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=2, address=0x16edfffc0)
* frame #0: 0x00000001a4226994 libsystem_malloc.dylib`nanov2_allocate_from_block + 8
frame #1: 0x00000001a42261e0 libsystem_malloc.dylib`nanov2_allocate + 128
frame #2: 0x00000001a42260fc libsystem_malloc.dylib`nanov2_malloc + 64
frame #3: 0x00000001a4243748 libsystem_malloc.dylib`_malloc_zone_malloc + 156
frame #4: 0x00000001000a0998 python`_PyObject_Malloc + 64
frame #5: 0x00000001001eedcc python`state_init + 164
frame #6: 0x00000001001ecf1c python`_sre_SRE_Pattern_match + 224
frame #7: 0x0000000100058a2c python`method_vectorcall_FASTCALL_KEYWORDS_METHOD + 144
frame #8: 0x000000010004e02c python`PyObject_VectorcallMethod + 144
frame #9: 0x0000000100104b30 python`check_matched + 108
frame #10: 0x00000001001035ac python`warn_explicit + 1284
frame #11: 0x000000010010487c python`do_warn + 828
frame #12: 0x0000000100102eac python`PyErr_WarnEx + 72
frame #13: 0x00000001036ada78 _multiarray_umath.cpython-311-darwin.so`PyArray_DescrFromTypeObject + 496
frame #14: 0x00000001036acbb8 _multiarray_umath.cpython-311-darwin.so`PyArray_DescrFromScalar + 212
frame #15: 0x000000010009ef28 python`_PyObject_GenericGetAttrWithDict + 200
frame #16: 0x000000010009e7dc python`PyObject_GetAttr + 100
frame #17: 0x000000010009e720 python`PyObject_GetAttrString + 72
frame #18: 0x00000001036acccc _multiarray_umath.cpython-311-darwin.so`PyArray_DescrFromScalar + 488
frame #19: 0x000000010009ef28 python`_PyObject_GenericGetAttrWithDict + 200
frame #20: 0x000000010009e7dc python`PyObject_GetAttr + 100
frame #21: 0x000000010009e720 python`PyObject_GetAttrString + 72
frame #22: 0x00000001036acccc _multiarray_umath.cpython-311-darwin.so`PyArray_DescrFromScalar + 488
frame #23: 0x000000010009ef28 python`_PyObject_GenericGetAttrWithDict + 200
frame #24: 0x000000010009e7dc python`PyObject_GetAttr + 100
frame #25: 0x000000010009e720 python`PyObject_GetAttrString + 72
(lots more of this, snipped)
frame #279490: 0x00000001036acccc _multiarray_umath.cpython-311-darwin.so`PyArray_DescrFromScalar + 488
frame #279491: 0x000000010009ef28 python`_PyObject_GenericGetAttrWithDict + 200
frame #279492: 0x000000010009e7dc python`PyObject_GetAttr + 100
frame #279493: 0x0000000100138d50 python`_PyEval_EvalFrameDefault + 17896
frame #279494: 0x00000001001346c8 python`_PyEval_Vector + 200
frame #279495: 0x000000010004e300 python`object_vacall + 256
frame #279496: 0x000000010004e564 python`PyObject_CallFunctionObjArgs + 48
frame #279497: 0x0000000103603278 _multiarray_umath.cpython-311-darwin.so`PyArray_NewFromDescr_int + 1268
frame #279498: 0x00000001035fa958 _multiarray_umath.cpython-311-darwin.so`PyArray_View + 84
frame #279499: 0x0000000103688110 _multiarray_umath.cpython-311-darwin.so`array_view + 324
frame #279500: 0x000000010005867c python`method_vectorcall_FASTCALL_KEYWORDS + 136
frame #279501: 0x000000010004ccd4 python`PyObject_Vectorcall + 80
frame #279502: 0x000000010013cf1c python`_PyEval_EvalFrameDefault + 34740
frame #279503: 0x00000001001346c8 python`_PyEval_Vector + 200
frame #279504: 0x000000010004c64c python`_PyObject_FastCallDictTstate + 272
frame #279505: 0x000000010004d394 python`_PyObject_Call_Prepend + 148
frame #279506: 0x00000001000b6b68 python`slot_tp_new + 88
frame #279507: 0x00000001000b3550 python`type_call + 84
frame #279508: 0x000000010004c834 python`_PyObject_MakeTpCall + 344
frame #279509: 0x000000010013cf1c python`_PyEval_EvalFrameDefault + 34740
frame #279510: 0x0000000100134598 python`PyEval_EvalCode + 272
frame #279511: 0x000000010018c5a8 python`PyRun_InteractiveOneObjectEx + 744
frame #279512: 0x000000010018bad0 python`_PyRun_InteractiveLoopObject + 152
frame #279513: 0x000000010018b97c python`_PyRun_AnyFileObject + 96
frame #279514: 0x000000010018c234 python`PyRun_AnyFileExFlags + 68
frame #279515: 0x00000001001ac1dc python`Py_RunMain + 2196
frame #279516: 0x00000001001ac424 python`pymain_main + 324
frame #279517: 0x00000001001ac4c4 python`Py_BytesMain + 40
frame #279518: 0x000000010057508c dyld`start + 520Runtime information:
>>> import sys, numpy; print(numpy.__version__); print(sys.version)
1.24.3
3.11.1 (main, Dec 21 2022, 16:19:04) [Clang 14.0.0 (clang-1400.0.29.202)]
>>> print(numpy.show_runtime())
[{'simd_extensions': {'baseline': ['NEON', 'NEON_FP16', 'NEON_VFPV4', 'ASIMD'],
'found': ['ASIMDHP', 'ASIMDDP'],
'not_found': ['ASIMDFHM']}},
{'architecture': 'armv8',
'filepath': '/Users/jelle/py/venvs/py311/lib/python3.11/site-packages/numpy/.dylibs/libopenblas64_.0.dylib',
'internal_api': 'openblas',
'num_threads': 8,
'prefix': 'libopenblas',
'threading_layer': 'pthreads',
'user_api': 'blas',
'version': '0.3.21'}]
None
Context for the issue:
No concrete use case; I found this while trying to instantiate all pairs of buffer classes to look for real-world impact of python/cpython#104297.