Illegal instruction (core dumped) when load_index

[kuangue]

Hi, folks. I found the problem on hnswlib 0.8.0 as follows:

root@ip-mask:/app# python --version
Python 3.11.2
root@ip-mask:/app# uname -a
Linux ip-mask.ap-northeast-1.compute.internal 4.14.343-261.564.amzn2.aarch64 #1 SMP Tue May 7 02:23:29 UTC 2024 aarch64 GNU/Linux
root@ip-mask:/app# cat check.py
import hnswlib

engine = hnswlib.Index(space="l2", dim=50)
engine.load_index("/tmp/index.bin", allow_replace_deleted=False)
engine.set_ef(1000)

root@ip-mask:/app# gdb -c core.17315 python
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Reading symbols from python...
(No debugging symbols found in python)
[New LWP 17315]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/aarch64-linux-gnu/libthread_db.so.1".
Core was generated by `python check.py'.
Program terminated with signal SIGILL, Illegal instruction.
#0  std::__atomic_base<unsigned long>::store (__m=std::memory_order_seq_cst, __i=0, this=0xaaab012aadc0) at /usr/include/c++/10/bits/atomic_base.h:397
397           store(__int_type __i, memory_order __m = memory_order_seq_cst) noexcept
(gdb) bt
#0  std::__atomic_base<unsigned long>::store (__m=std::memory_order_seq_cst, __i=0, this=0xaaab012aadc0) at /usr/include/c++/10/bits/atomic_base.h:397
#1  std::__atomic_base<unsigned long>::operator= (__i=0, this=0xaaab012aadc0) at /usr/include/c++/10/bits/atomic_base.h:297
#2  hnswlib::HierarchicalNSW<float>::clear (this=0xaaab012aadb0) at ./hnswlib/hnswalg.h:160
#3  hnswlib::HierarchicalNSW<float>::loadIndex (this=this@entry=0xaaab012aadb0, location=..., s=0xaaab0123d180, max_elements_i=max_elements_i@entry=0)
    at ./hnswlib/hnswalg.h:722
#4  0x0000ffffaac3e75c in hnswlib::HierarchicalNSW<float>::HierarchicalNSW (allow_replace_deleted=false, max_elements=0, nmslib=false, location=...,
    s=<optimized out>, this=0xaaab012aadb0) at ./hnswlib/hnswalg.h:85
#5  Index<float, float>::loadIndex (this=0xaaab012bfd50, path_to_index=..., max_elements=0, allow_replace_deleted=false) at ./python_bindings/bindings.cpp:235
#6  0x0000ffffaac36174 in pybind11::cpp_function::cpp_function<void, Index<float, float>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool, pybind11::name, pybind11::is_method, pybind11::sibling, pybind11::arg, pybind11::arg_v, pybind11::arg_v>(void (Index<float, float>::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool), pybind11::name const&, pybind11::is_method const&, pybind11::sibling const&, pybind11::arg const&, pybind11::arg_v const&, pybind11::arg_v const&)::{lambda(Index<float, float>*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool)#1}::operator()(Index<float, float>*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool) const (args#2=<optimized out>, args#1=<optimized out>, args#0="/tmp/jd_index.bin", c=<optimized out>,
    this=<optimized out>) at /tmp/tmp86094u_6/.venv/lib/python3.11/site-packages/pybind11/include/pybind11/pybind11.h:154
#7  pybind11::detail::argument_loader<Index<float, float>*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool>::call_impl<void, pybind11::cpp_function::cpp_function<void, Index<float, float>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool, pybind11::name, pybind11::is_method, pybind11::sibling, pybind11::arg, pybind11::arg_v, pybind11::arg_v>(void (Index<float, float>::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool), pybind11::name const&, pybind11::is_method const&, pybind11::sibling const&, pybind11::arg const&, pybind11::arg_v const&, pybind11::arg_v const&)::{lambda(Index<float, float>*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool)#1}&, 0ul, 1ul, 2ul, 3ul, pybind11::detail::void_type>(pybind11::cpp_function::cpp_function<void, Index<float, float>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool, pybind11::name, pybind11::is_method, pybind11::sibling, pybind11::arg, pybind11::arg_v, pybind11::arg_v>(void (Index<float, float>::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool), pybind11::name const&, pybind11::is_method const&, pybind11::sibling const&, pybind11::arg const&, pybind11::arg_v const&, pybind11::arg_v const&)::{lambda(Index<float, float>*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool)#1}&, std::integer_sequence<unsigned long, 0ul, 1ul, 2ul, 3ul>, pybind11::detail::void_type&&) && (f=..., this=0xfffffab02a88)
    at /tmp/tmp86094u_6/.venv/lib/python3.11/site-packages/pybind11/include/pybind11/detail/../cast.h:1613
#8  pybind11::detail::argument_loader<Index<float, float>*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool>::call<void, pybind11::detail::void_type, pybind11::cpp_function::cpp_function<void, Index<float, float>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool, pybind11::name, pybind11::is_method, pybind11::sibling, pybind11::arg, pybind11::arg_v, pybind11::arg_v>(void (Index<float, float>::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool), pybind11::name const&, pybind11::is_method const&, pybind11::sibling const&, pybind11::arg const&, pybind11::arg_v const&, pybind11::arg_v const&)::{lambda(Index<float, float>*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool)#1}&>(pybind11::cpp_function::cpp_function<void, Index<float, float>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool, pybind11::name, pybind11::is_method, pybind11::sibling, pybind11::arg, pybind11::arg_v, pybind11::arg_v>(void (Index<float, float>::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool), pybind11::name const&, pybind11::is_method const&, pybind11::sibling const&, pybind11::arg const&, pybind11::arg_v const&, pybind11::arg_v const&)::{lambda(Index<float, float>*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool)#1}&) && (f=..., f=...,
    this=0xfffffab02a88) at /tmp/tmp86094u_6/.venv/lib/python3.11/site-packages/pybind11/include/pybind11/detail/../cast.h:1587
#9  pybind11::cpp_function::initialize<pybind11::cpp_function::initialize<void, Index<float, float>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool, pybind11::name, pybind11::is_method, pybind11::sibling, pybind11::arg, pybind11::arg_v, pybind11::arg_v>(void (Index<float, float>::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool), pybind11::name const&, pybind11::is_methodconst&, pybind11::sibling const&, pybind11::arg const&, pybind11::arg_v const&, pybind11::arg_v const&)::{lambda(Index<float, float>*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool)#1}, void, Index<float, float>*, std::__cxx11::basic_string<char, std::char_traits<char>,--Type <RET> for more, q to quit, c to continue without paging--
 std::allocator<char> > const&, unsigned long, bool, pybind11::name, pybind11::is_method, pybind11::sibling, pybind11::arg, pybind11::arg_v, pybind11::arg_v>(pybind11::cpp_function::initialize<void, Index<float, float>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool, pybind11::name, pybind11::is_method, pybind11::sibling, pybind11::arg, pybind11::arg_v, pybind11::arg_v>(void (Index<float, float>::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool), pybind11::name const&, pybind11::is_method const&, pybind11::sibling const&, pybind11::arg const&, pybind11::arg_v const&, pybind11::arg_v const&)::{lambda(Index<float, float>*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const&, unsigned long, bool)#1}&&, void (*)(Index<float, float>*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool), pybind11::name const&, pybind11::is_method const&, pybind11::sibling const&, pybind11::arg const&, pybind11::arg_v const&, pybind11::arg_v const&)::{lambda(pybind11::detail::function_call&)#3}::operator()(pybind11::detail::function_call&) const (this=0x0, call=...)
    at /tmp/tmp86094u_6/.venv/lib/python3.11/site-packages/pybind11/include/pybind11/pybind11.h:297
#10 pybind11::cpp_function::initialize<pybind11::cpp_function::initialize<void, Index<float, float>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool, pybind11::name, pybind11::is_method, pybind11::sibling, pybind11::arg, pybind11::arg_v, pybind11::arg_v>(void (Index<float, float>::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool), pybind11::name const&, pybind11::is_methodconst&, pybind11::sibling const&, pybind11::arg const&, pybind11::arg_v const&, pybind11::arg_v const&)::{lambda(Index<float, float>*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool)#1}, void, Index<float, float>*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool, pybind11::name, pybind11::is_method, pybind11::sibling, pybind11::arg, pybind11::arg_v, pybind11::arg_v>(pybind11::cpp_function::initialize<void, Index<float, float>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool, pybind11::name, pybind11::is_method, pybind11::sibling, pybind11::arg, pybind11::arg_v, pybind11::arg_v>(void (Index<float, float>::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool), pybind11::name const&, pybind11::is_method const&, pybind11::sibling const&, pybind11::arg const&, pybind11::arg_v const&, pybind11::arg_v const&)::{lambda(Index<float, float>*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const&, unsigned long, bool)#1}&&, void (*)(Index<float, float>*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned long, bool), pybind11::name const&, pybind11::is_method const&, pybind11::sibling const&, pybind11::arg const&, pybind11::arg_v const&, pybind11::arg_v const&)::{lambda(pybind11::detail::function_call&)#3}::_FUN(pybind11::detail::function_call&) ()
    at /tmp/tmp86094u_6/.venv/lib/python3.11/site-packages/pybind11/include/pybind11/pybind11.h:267
#11 0x0000ffffaac239cc in pybind11::cpp_function::dispatcher (self=<optimized out>, args_in=0xffffaac8ca00, kwargs_in=0xffffaac67640)
    at /tmp/tmp86094u_6/.venv/lib/python3.11/site-packages/pybind11/include/pybind11/pybind11.h:987
#12 0x0000ffffab3682cc in ?? () from /usr/local/bin/../lib/libpython3.11.so.1.0
#13 0x0000ffffab33ee9c in _PyObject_MakeTpCall () from /usr/local/bin/../lib/libpython3.11.so.1.0
#14 0x0000ffffab34b4d0 in _PyEval_EvalFrameDefault () from /usr/local/bin/../lib/libpython3.11.so.1.0
#15 0x0000ffffab3496c0 in ?? () from /usr/local/bin/../lib/libpython3.11.so.1.0
#16 0x0000ffffab3b9048 in PyEval_EvalCode () from /usr/local/bin/../lib/libpython3.11.so.1.0
#17 0x0000ffffab4028ac in ?? () from /usr/local/bin/../lib/libpython3.11.so.1.0
#18 0x0000ffffab402814 in ?? () from /usr/local/bin/../lib/libpython3.11.so.1.0
#19 0x0000ffffab4021d0 in ?? () from /usr/local/bin/../lib/libpython3.11.so.1.0
#20 0x0000ffffab401d5c in _PyRun_SimpleFileObject () from /usr/local/bin/../lib/libpython3.11.so.1.0
#21 0x0000ffffab401ae0 in _PyRun_AnyFileObject () from /usr/local/bin/../lib/libpython3.11.so.1.0
#22 0x0000ffffab3fa4fc in Py_RunMain () from /usr/local/bin/../lib/libpython3.11.so.1.0
#23 0x0000ffffab3a1d98 in Py_BytesMain () from /usr/local/bin/../lib/libpython3.11.so.1.0
#24 0x0000ffffab043e18 in __libc_start_main (main=0xaaaad0d129b0 <_start+288>, argc=2, argv=0xfffffab033f8, init=<optimized out>, fini=<optimized out>,
    rtld_fini=<optimized out>, stack_end=<optimized out>) at ../csu/libc-start.c:308
#25 0x0000aaaad0d128c4 in _start ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

hnswlib/hnswalg.h:160 => cur_element_count = 0;
I don't know what happened. Do you have any idea?

[kuangue]

I found the previous problem occurred with init_index().