Details
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Bug
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Resolution: Fixed
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Not Evaluated
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6.10
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None
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c8d3d7a7a (dev), 2a613662a (6.9), 8c4e99f7d (tqtc/lts-6.8)
Description
Backtrace:
#0 0x00007fa07abbeb4e in QtPrivate::QMetaTypeForType<QList<QString> >::getMoveCtr()::{lambda(QtPrivate::QMetaTypeInterface const*, void*, void*)#1}::_FUN(QtPrivate::QMetaTypeInterface const*, void*, void*) () at /home/tjmaciei/obj/qt/installed/bin/../lib64/libQt6Core.t.so.6
#1 0x00007fa07ab89249 in QBasicTimer::stop() () at /home/tjmaciei/obj/qt/installed/bin/../lib64/libQt6Core.t.so.6
#2 0x00007fa07abffae9 in QSingleShotTimer::~QSingleShotTimer() () at /home/tjmaciei/obj/qt/installed/bin/../lib64/libQt6Core.t.so.6
#3 0x00007fa07abe0041 in QObjectPrivate::deleteChildren() () at /home/tjmaciei/obj/qt/installed/bin/../lib64/libQt6Core.t.so.6
#4 0x00007fa07abe672a in QObject::~QObject() () at /home/tjmaciei/obj/qt/installed/bin/../lib64/libQt6Core.t.so.6
#5 0x00007fa07bd24826 in QPAEventDispatcherGlib::~QPAEventDispatcherGlib() () at /home/tjmaciei/obj/qt/installed/bin/../lib64/libQt6Gui.t.so.6
#6 0x00007fa07b7e47a5 in QGuiApplication::~QGuiApplication() () at /home/tjmaciei/obj/qt/installed/bin/../lib64/libQt6Gui.t.so.6
#7 0x0000000000419669 in SharedTools::QtSingleApplication::~QtSingleApplication ()
at /home/tjmaciei/src/qt/qt-creator/src/shared/qtsingleapplication/qtsingleapplication.cpp:104
#8 0x000000000040daf3 in std::default_delete<SharedTools::QtSingleApplication>::operator() () at /usr/include/c++/14/bits/unique_ptr.h:93
#9 std::unique_ptr<SharedTools::QtSingleApplication, std::default_delete<SharedTools::QtSingleApplication> >::~unique_ptr ()
at /usr/include/c++/14/bits/unique_ptr.h:399
#10 main () at /home/tjmaciei/src/qt/qt-creator/src/app/main.cpp:1022
Frame 0 appears to be nonsense (jump to wrong address). Frame 1 is:
void QBasicTimer::stop() { if (isActive()) { QAbstractEventDispatcher *eventDispatcher = QAbstractEventDispatcher::instance(); if (eventDispatcher && !eventDispatcher->unregisterTimer(m_id)) { qWarning("QBasicTimer::stop: Failed. Possibly trying to stop from a different thread"); return; } QAbstractEventDispatcherPrivate::releaseTimerId(m_id); } m_id = Qt::TimerId::Invalid; }
Disassembly shows the crash happened in the call eventDispatcher->unregisterTimer. This pointer is valid, but the vtable inside of it is:
0x326be350: 0x7fa07b068948 <_ZTV7QObject+16>
This is a partially destroyed object. In fact, the backtrace tells us that: this is a QBasicTimer associated with the event dispatcher object, but is being destroyed by the QObject destructor... so the dispatcher no longer exists.
Attachments
| For Gerrit Dashboard: QTBUG-137130 | ||||||
|---|---|---|---|---|---|---|
| # | Subject | Branch | Project | Status | CR | V |
| 647578,5 | QAbstractEventDispatcher: prevent too late unregistering of timers | dev | qt/qtbase | Status: MERGED | +2 | 0 |
| 647948,2 | QAbstractEventDispatcher: prevent too late unregistering of timers | 6.9 | qt/qtbase | Status: MERGED | +2 | 0 |
| 649464,2 | QAbstractEventDispatcher: prevent too late unregistering of timers | tqtc/lts-6.8 | qt/tqtc-qtbase | Status: MERGED | +2 | 0 |