Dump of assembler code for function __cxa_thread_atexit_impl:
0x00007f46ce25fc80 <+0>: endbr64
0x00007f46ce25fc84 <+4>: push %r13
0x00007f46ce25fc86 <+6>: mov %rsi,%r13
0x00007f46ce25fc89 <+9>: mov $0x20,%esi
0x00007f46ce25fc8e <+14>: push %r12
0x00007f46ce25fc90 <+16>: mov %rdx,%r12
0x00007f46ce25fc93 <+19>: push %rbp
0x00007f46ce25fc94 <+20>: mov %rdi,%rbp
0x00007f46ce25fc97 <+23>: mov $0x1,%edi
0x00007f46ce25fc9c <+28>: push %rbx
0x00007f46ce25fc9d <+29>: xor %fs:0x30,%rbp
0x00007f46ce25fca6 <+38>: rol $0x11,%rbp
0x00007f46ce25fcaa <+42>: sub $0x8,%rsp
0x00007f46ce25fcae <+46>: call 0x7f46ce242400
0x00007f46ce25fcb3 <+51>: test %rax,%rax
0x00007f46ce25fcb6 <+54>: je 0x7f46ce25fd28 <__cxa_thread_atexit_impl+168>
0x00007f46ce25fcb8 <+56>: mov %rbp,(%rax)
0x00007f46ce25fcbb <+59>: mov %rax,%rbx
0x00007f46ce25fcbe <+62>: mov 0x1d42db(%rip),%rbp # 0x7f46ce433fa0
0x00007f46ce25fcc5 <+69>: mov %r13,0x8(%rax)
0x00007f46ce25fcc9 <+73>: mov 0x1d40c0(%rip),%rax # 0x7f46ce433d90
0x00007f46ce25fcd0 <+80>: lea 0xa08(%rbp),%rdi
0x00007f46ce25fcd7 <+87>: mov %fs:(%rax),%rdx
0x00007f46ce25fcdb <+91>: mov %rdx,0x18(%rbx)
0x00007f46ce25fcdf <+95>: mov %rbx,%fs:(%rax)
0x00007f46ce25fce3 <+99>: call 0x7f46ce2b1ef0 <___pthread_mutex_lock>
0x00007f46ce25fce8 <+104>: test %r12,%r12
0x00007f46ce25fceb <+107>: jne 0x7f46ce25fd38 <__cxa_thread_atexit_impl+184>
0x00007f46ce25fced <+109>: mov 0x1d40a4(%rip),%r12 # 0x7f46ce433d98
0x00007f46ce25fcf4 <+116>: mov %fs:(%r12),%rax
=> 0x00007f46ce25fcf9 <+121>: lock addq $0x1,0x468(%rax)
(gdb) p/x $fs_base
$10 = 0x7f448b074400
(gdb) x/8gx 0x7f448b074400
0x7f448b074400: 0x00007f448b074400 0xabababababababab
0x7f448b074410: 0x00007f448b074400 0xabababababababab
0x7f448b074420: 0x00007f46cef96fe3 0xabababababababab
0x7f448b074430: 0xabababababababab 0xabababababababab
(gdb) p/x $r12
$11 = 0xfffffffffffffba0
(gdb) x/8gx 0x7f448b074400+0xfffffffffffffba0
0x7f448b073fa0: 0x0000000000000000 0x00007f448b64d250
0x7f448b073fb0: 0x0000000000000000 0x0000000000000000
0x7f448b073fc0: 0x0000000000000000 0x0000000000000000
0x7f448b073fd0: 0x0000000000000000 0x0000000000000000
(gdb) bt
#0 0x00007f46ce25fcf9 in __cxa_thread_atexit_impl (func=<optimized out>, obj=0x7f448b073e70, dso_symbol=<optimized out>) at ./stdlib/cxa_thread_atexit_impl.c:137
#1 0x00007f46ccf7579d in __cxa_thread_atexit ()
#2 0x00007f46cd6a049f in _GetErrorObj() ()
#3 0x00007f46cd71a471 in pkgInitConfig(Configuration&) ()
#4 0x00007f468ad8478c in ?? ()
#5 0x00007f46ce7bd008 in ?? ()
#6 0x00007f46ce774adc in _PyObject_MakeTpCall ()
#7 0x00007f46ce710a1c in _PyEval_EvalFrameDefault ()
Occurs on python3.10 from apt (dev branch), only when outside of a venv?