Details
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Bug
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Resolution: Done
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P1: Critical
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5.12
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None
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macOS 10.14
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6746417e719cee389a37513f830d5cff1b4b9c25 (qt/qtdeclarative/5.12.0)
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Bug Fixing Week Q2/2020
Description
I haven't been able to reproduce this with a minimal example yet, but when I run Slate (which has been built with a dev build of Qt, with force-asserts), I get a segfault:
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 [1680] VM Regions Near 0: --> __TEXT 000000010845c000-00000001084ce000 [ 456K] r-x/rwx SM=COW /Users/USER/*/slate.app/Contents/MacOS/slate Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 org.qt-project.QtQml 0x000000010954d279 QV4::ExecutionEngine::ExecutionEngine(QJSEngine*)::$_61::operator()() const + 73 1 org.qt-project.QtQml 0x0000000109549ed3 QV4::ExecutionEngine::ExecutionEngine(QJSEngine*) + 9411 2 org.qt-project.QtQml 0x00000001094414e7 QJSEngine::QJSEngine(QJSEnginePrivate&, QObject*) + 55 3 org.qt-project.QtQml 0x000000010958b76e QQmlEngine::QQmlEngine(QQmlEnginePrivate&, QObject*) + 14 4 org.qt-project.QtQml 0x000000010961e870 QQmlApplicationEngine::QQmlApplicationEngine(QObject*) + 96 5 org.example.slate 0x000000010845cf1d Application::Application(int&, char**, QString const&) + 253 (application.cpp:78) 6 org.example.slate 0x000000010846852d Application::Application(int&, char**, QString const&) + 45 (application.cpp:147) 7 org.example.slate 0x000000010847b4b9 main + 89 (main.cpp:5) 8 org.example.slate 0x000000010845cd74 start + 52 Thread 1: 0 libsystem_pthread.dylib 0x00007fff66e32408 start_wqthread + 0 1 ??? 0x0000000054485244 0 + 1414025796 Thread 2: 0 libsystem_pthread.dylib 0x00007fff66e32408 start_wqthread + 0 1 ??? 0x0000000054485244 0 + 1414025796 Thread 3: 0 libsystem_pthread.dylib 0x00007fff66e32408 start_wqthread + 0 1 ??? 0x0000000054485244 0 + 1414025796 Thread 4: 0 libsystem_pthread.dylib 0x00007fff66e32408 start_wqthread + 0 1 ??? 0x0000000054485244 0 + 1414025796 Thread 5: 0 libsystem_pthread.dylib 0x00007fff66e32408 start_wqthread + 0 1 ??? 0x0000000054485244 0 + 1414025796 Thread 6: 0 libsystem_pthread.dylib 0x00007fff66e32408 start_wqthread + 0 Thread 7: 0 libsystem_pthread.dylib 0x00007fff66e32408 start_wqthread + 0 1 ??? 0x0000000000001303 0 + 4867 Thread 8:: QQmlThread 0 libsystem_kernel.dylib 0x00007fff66d81b8e poll + 10 1 org.qt-project.QtCore 0x000000010879eb70 qt_safe_poll(pollfd*, unsigned int, timespec const*) + 608 2 org.qt-project.QtCore 0x00000001087a0546 QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 982 3 org.qt-project.QtCore 0x000000010873aa8e QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 366 4 org.qt-project.QtCore 0x000000010855544c QThread::exec() + 156 5 org.qt-project.QtQml 0x0000000109648159 QQmlThreadPrivate::run() + 57 6 org.qt-project.QtCore 0x0000000108556302 QThreadPrivate::start(void*) + 338 7 libsystem_pthread.dylib 0x00007fff66e3333d _pthread_body + 126 8 libsystem_pthread.dylib 0x00007fff66e362a7 _pthread_start + 70 9 libsystem_pthread.dylib 0x00007fff66e32425 thread_start + 13
I tried setting DYLD_IMAGE_SUFFIX=_debug so that I could get a better stack trace, but then I no longer get the crash.
Attachments
For Gerrit Dashboard: QTBUG-70937 | ||||||
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# | Subject | Branch | Project | Status | CR | V |
244459,3 | Don't crash when compiling with QT_FORCE_ASSERTS enabled | 5.12.0 | qt/qtdeclarative | Status: MERGED | +2 | 0 |