Details
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Bug
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Resolution: Duplicate
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Not Evaluated
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None
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5.15.2
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None
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macOS 10.14.6
PySide2 5.15.2.1
Python 3.8.12, 3.9.10 and 3.10.2 (all from homebrew).
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macOS
Description
I have a PySide2 (5.15.2.1) app on macOS 10.14.6 that works fine under Python 3.6 and 3.7 but crashes when exiting under Python 3.8, 3.9 and 3.10 (from homebrew). The minimal crashing example (producing seg fault 11) is:
import sys from PySide2 import QtWidgets class AppSubclass(QtWidgets.QApplication): def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) def main(): app = AppSubclass(sys.argv) main() # Seg fault 11 under macOS 10.14.6
Even just removing the main function results in no crash:
import sys from PySide2 import QtWidgets class AppSubclass(QtWidgets.QApplication): def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) app = AppSubclass(sys.argv) # No crash
An extract of an example crash dump is as follows, suggesting the issue may be related to garbage collection:
Process: Python [63981] Path: /Users/USER/*/Python.framework/Versions/3.10/Resources/Python.app/Contents/MacOS/Python Identifier: org.python.python Version: 3.10.2 (3.10.2) Code Type: X86-64 (Native) Parent Process: bash [7079] Responsible: Python [63981] User ID: 501 Date/Time: 2022-02-03 23:09:04.556 +1000 OS Version: Mac OS X 10.14.6 (18G9323) Report Version: 12 Anonymous UUID: DA5A69F6-6D98-A47D-DFF6-80B091D3DBF3 Sleep/Wake UUID: 125DE0E6-768C-4225-A5C7-9338DA7FE41B Time Awake Since Boot: 17000 seconds Time Since Wake: 13000 seconds System Integrity Protection: enabled Crashed Thread: 0 Dispatch queue: com.apple.main-thread Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000 Exception Note: EXC_CORPSE_NOTIFY Termination Signal: Segmentation fault: 11 Termination Reason: Namespace SIGNAL, Code 0xb Terminating Process: exc handler [63981] VM Regions Near 0: --> __TEXT 0000000107d7e000-0000000107d7f000 [ 4K] r-x/rwx SM=COW /Users/USER/*/Python.framework/Versions/3.10/Resources/Python.app/Contents/MacOS/Python Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 org.python.python 0x0000000107f38f65 PyObject_GC_UnTrack + 21 1 org.python.python 0x0000000107e30e1e subtype_dealloc + 174 2 org.python.python 0x0000000107e094ce insertdict + 1086 3 libshiboken2.abi3.5.15.dylib 0x000000010871cc2e MakeQAppWrapper + 158 4 libpyside2.abi3.5.15.dylib 0x00000001093029a4 PySide::destroyQCoreApplication() + 148 5 libpyside2.abi3.5.15.dylib 0x00000001093028ed PySide::runCleanupFunctions() + 141 6 QtCore.abi3.so 0x000000010b464ea1 SbkQtCoreModule___moduleShutdown(_object*) + 33 7 org.python.python 0x0000000107e1ae4b cfunction_vectorcall_NOARGS + 267 8 org.python.python 0x0000000107f714a3 atexit_callfuncs + 147 9 org.python.python 0x0000000107f0f2f2 Py_FinalizeEx + 66 10 org.python.python 0x0000000107f37259 Py_RunMain + 2905 11 org.python.python 0x0000000107f3752b pymain_main + 411 12 org.python.python 0x0000000107f3758b Py_BytesMain + 43 13 libdyld.dylib 0x00007fff6cc163d5 start + 1 Thread 1: 0 libsystem_pthread.dylib 0x00007fff6ce093f0 start_wqthread + 0 Thread 2: 0 libsystem_pthread.dylib 0x00007fff6ce093f0 start_wqthread + 0 Thread 3: 0 libsystem_pthread.dylib 0x00007fff6ce093f0 start_wqthread + 0 Thread 4: 0 libsystem_pthread.dylib 0x00007fff6ce093f0 start_wqthread + 0 Thread 0 crashed with X86 Thread State (64-bit): rax: 0x000000010ba523e0 rbx: 0x000000000000009c rcx: 0x0000000000000000 rdx: 0x0000000000000200 rdi: 0x0000000108303b40 rsi: 0x000000010b8d55b0 rbp: 0x00007ffee7e81340 rsp: 0x00007ffee7e81340 r8: 0x0000000000000000 r9: 0x27bda66b60f8266d r10: 0x00007ff72981b000 r11: 0x00007ff72981b228 r12: 0x0000000108303b40 r13: 0x0000000108216fc0 r14: 0x0000000108303b40 r15: 0x00007ff72a936010 rip: 0x0000000107f38f65 rfl: 0x0000000000010246 cr2: 0x0000000000000000 Logical CPU: 0 Error Code: 0x00000006 Trap Number: 14
Attachments
Issue Links
- duplicates
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- Closed
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