Phoenix
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wxWidgets
Segfault on exit with version 4.2.1 and Python 3.12
Operating system: macOS 13.6.1 22G313 arm64 wxPython version & source: 4.2.1 (pypi and self-built) Python version & source: Python 3.12.0 (official Mac dist and MacPorts' built)
Description of the problem:
Exiting/quitting a Python 3.12 session with wxPython loaded causes segmentation fault:
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000010
Exception Codes: 0x0000000000000001, 0x0000000000000010
Termination Reason: Namespace SIGNAL, Code 11 Segmentation fault: 11
Terminating Process: exc handler [64502]
VM Region Info: 0x10 is not in any region. Bytes before following region: 105553518919664
REGION TYPE START - END [ VSIZE] PRT/MAX SHRMOD REGION DETAIL
UNUSED SPACE AT START
--->
MALLOC_NANO (reserved) 600018000000-600020000000 [128.0M] rw-/rwx SM=NUL ...(unallocated)
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 Python 0x1016b823c _PyObject_Free + 36
1 siplib.cpython-312-darwin.so 0x10159f570 finalise + 132 (siplib.c:2064)
2 Python 0x1017a020c Py_FinalizeEx + 452
3 Python 0x1017a1780 Py_Exit + 20
4 Python 0x1017a8b50 handle_system_exit + 44
5 Python 0x1017a8004 _PyErr_PrintEx + 56
6 Python 0x1017a7d30 PyRun_SimpleStringFlags + 144
7 Python 0x1017cad48 pymain_run_command + 148
8 Python 0x1017ca6f0 Py_RunMain + 244
9 Python 0x1017cab00 Py_BytesMain + 40
10 dyld 0x198fc3f28 start + 2236
Above log extract is from self-built wxPython with MacPorts' Python (with SIP 6.7.12), but nearly identical with official Python dist with pypi version of wxPython.
The same procedure works as expected with Python <=3.11.
Code Example (click to expand)
import wx
exit()
macports_build.log.txt official_dist.log.txt
I can reproduce this with the 4.2.1 wheels, but not with the latest snapshot builds so it seems likely it was fixed by a sip update.
Possible duplicate of #2455.
Sure looks like it. Perhaps better to keep this ticket open till next release, to avoid new reports.