Segfault generated in gdbserver with 32-bit binary and CPU that supports avx512

Solution Unverified - Updated -

Issue

  • Why gdbserver generates an error for 32-bit binaries when accessed through another session/terminal?

    /usr/include/c++/8/bits/stl_vector.h:950: std::vector<_Tp, _Alloc>::const_reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) const [with _Tp = reg; _Alloc = std::allocator<reg>; std::vector<_Tp, _Alloc>::const_reference = const reg&; std::vector<_Tp, _Alloc>::size_type = long unsigned int]: Assertion '__builtin_expect(__n < this->size(), true)' failed.

Environment

  • Red Hat Enterprise Linux 8
  • gcc-toolset-11-gdb

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