Details
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Bug
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Resolution: Done
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P1: Critical
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None
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5.6.1
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None
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OSX 10.10
Description
Our Qt 5.6.1 based application crashes on Macintosh in a particular situation. This is very reproducible, but it's unlikely that I'll be able to come up with a simplified example that I could post here.
Here is the relevant call stack:
1 __pthread_kill 0x7fff8a0e3286 2 pthread_kill 0x7fff8b5d19f9 3 abort 0x7fff82ec19ab 4 qt_message_fatal(QtMsgType, QMessageLogContext const&, QString const&) qlogging.cpp 1648 0x10b2d0988 5 QMessageLogger::fatal(const char *, ...) const qlogging.cpp 790 0x10b2d2cae 6 qt_assert(const char *, const char *, int) qglobal.cpp 2999 0x10b2c8ed2 7 QAccessible::registerAccessibleInterface(QAccessibleInterface *) qaccessible.cpp 739 0x10a511e82 8 QAccessible::uniqueId(QAccessibleInterface *) qaccessible.cpp 760 0x10a511f2c 9 QAccessibleEvent::uniqueId() const qaccessible.cpp 1372 0x10a5126c1 10 QCocoaAccessibility::notifyAccessibilityUpdate(QAccessibleEvent *) qcocoaaccessibility.mm 56 0x11425dacc 11 QAccessible::updateAccessibility(QAccessibleEvent *) qaccessible.cpp 869 0x10a512192 12 QTableView::selectionChanged(QItemSelection const&, QItemSelection const&) qtableview.cpp 3336 0x109afe715 13 QAbstractItemView::qt_static_metacall(QObject *, QMetaObject::Call, int, void * *) moc_qabstractitemview.cpp 413 0x109abe37b 14 QMetaObject::activate(QObject *, int, int, void * *) qobject.cpp 3730 0x10b61ca49 15 QMetaObject::activate(QObject *, QMetaObject const *, int, void * *) qobject.cpp 3595 0x10b61be9d 16 QItemSelectionModel::selectionChanged(QItemSelection const&, QItemSelection const&) moc_qitemselectionmodel.cpp 481 0x10b55182b 17 QItemSelectionModel::emitSelectionChanged(QItemSelection const&, QItemSelection const&) qitemselectionmodel.cpp 1809 0x10b555e5f 18 QItemSelectionModel::select(QItemSelection const&, QFlags<QItemSelectionModel::SelectionFlag>) qitemselectionmodel.cpp 1296 0x10b555d53 19 QItemSelectionModel::select(QModelIndex const&, QFlags<QItemSelectionModel::SelectionFlag>) qitemselectionmodel.cpp 1157 0x10b5558c8 20 QItemSelectionModel::setCurrentIndex(QModelIndex const&, QFlags<QItemSelectionModel::SelectionFlag>) qitemselectionmodel.cpp 1371 0x10b55689f 21 QAbstractItemView::setCurrentIndex(QModelIndex const&) qabstractitemview.cpp 1064 0x109ab12a2 22 QAbstractItemViewPrivate::checkPersistentEditorFocus() qabstractitemview.cpp 4254 0x109ab28de 23 QAbstractItemView::event(QEvent *) qabstractitemview.cpp 1619 0x109ab27f2 24 QTableWidget::event(QEvent *) qtablewidget.cpp 2672 0x109b46188 25 QApplicationPrivate::notify_helper(QObject *, QEvent *) qapplication.cpp 3804 0x10973c39e 26 QApplication::notify(QObject *, QEvent *) qapplication.cpp 3767 0x109741771 27 IgorAppObject::notify(QObject *, QEvent *) IgorAppObject.cpp 803 0x100085dec 28 QCoreApplication::notifyInternal2(QObject *, QEvent *) qcoreapplication.cpp 1015 0x10b5c9b48 29 QCoreApplication::sendEvent(QObject *, QEvent *) qcoreapplication.h 225 0x10972e1cc 30 QApplicationPrivate::setFocusWidget(QWidget *, Qt::FocusReason) qapplication.cpp 1860 0x109739bc3 31 QWidget::setFocus(Qt::FocusReason) qwidget.cpp 6519 0x10979dd16 32 QApplicationPrivate::giveFocusAccordingToFocusPolicy(QWidget *, QEvent *, QPoint) qapplication.cpp 4290 0x109741abf 33 QApplication::notify(QObject *, QEvent *) qapplication.cpp 3230 0x10973e75e 34 IgorAppObject::notify(QObject *, QEvent *) IgorAppObject.cpp 803 0x100085dec 35 QCoreApplication::notifyInternal2(QObject *, QEvent *) qcoreapplication.cpp 1015 0x10b5c9b48 36 QCoreApplication::sendSpontaneousEvent(QObject *, QEvent *) qcoreapplication.h 228 0x109746301 37 QApplicationPrivate::sendMouseEvent(QWidget *, QMouseEvent *, QWidget *, QWidget *, QWidget * *, QPointer<QWidget>&, bool) qapplication.cpp 2773 0x10973d2e3 38 QWidgetWindow::handleMouseEvent(QMouseEvent *) qwidgetwindow.cpp 602 0x1097d5e41 39 QWidgetWindow::event(QEvent *) qwidgetwindow.cpp 233 0x1097d47ec 40 QApplicationPrivate::notify_helper(QObject *, QEvent *) qapplication.cpp 3804 0x10973c39e 41 QApplication::notify(QObject *, QEvent *) qapplication.cpp 3163 0x10973e236 42 IgorAppObject::notify(QObject *, QEvent *) IgorAppObject.cpp 759 0x100085b49 43 QCoreApplication::notifyInternal2(QObject *, QEvent *) qcoreapplication.cpp 1015 0x10b5c9b48 44 QCoreApplication::sendSpontaneousEvent(QObject *, QEvent *) qcoreapplication.h 228 0x10a54d4a1 45 QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent *) qguiapplication.cpp 1877 0x10a544c76 46 QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent *) qguiapplication.cpp 1661 0x10a54403d 47 QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) qwindowsysteminterface.cpp 648 0x10a522b82 48 QCocoaEventDispatcherPrivate::processPostedEvents() qcocoaeventdispatcher.mm 884 0x11423d3f1 49 QCocoaEventDispatcherPrivate::postedEventsSourceCallback(void *) qcocoaeventdispatcher.mm 920 0x11423dee8 50 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ 0x7fff8bf1da01 51 __CFRunLoopDoSources0 0x7fff8bf0fb8d 52 __CFRunLoopRun 0x7fff8bf0f1bf 53 CFRunLoopRunSpecific 0x7fff8bf0ebd8 54 RunCurrentEventLoopInMode 0x7fff910d756f 55 ReceiveNextEventCommon 0x7fff910d71ee 56 _BlockUntilNextEventMatchingListInModeWithFilter 0x7fff910d712b 57 _DPSNextEvent 0x7fff8930a8ab 58 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] 0x7fff89309e58 59 -[NSApplication _realDoModalLoop:peek:] 0x7fff894d5887 60 -[NSApplication runModalSession:] 0x7fff896ffe64 61 QCocoaEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) qcocoaeventdispatcher.mm 399 0x11423c0e6 62 QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) qeventloop.cpp 128 0x10b5c4aba 63 QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) qeventloop.cpp 204 0x10b5c4cd6 64 QDialog::exec() qdialog.cpp 541 0x109a1ead0 65 WMDialog::runDialog() WMDialog.cpp 1384 0x100372687 66 IgorAppObject::runWMDialogVariant(WMDialogVariant::DialogTypes) IgorAppObject.cpp 4134 0x10008e7b1 67 BuiltinActions::doBuiltinActionCommand(eCommandID, QAction *, QVariant *) BuiltinActions.cpp 5223 0x1000a4112 68 BuiltinActions::doCommandFromSender() BuiltinActions.cpp 874 0x1000a1cb4 69 QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (BuiltinActions:: *)()>::call(void (BuiltinActions:: *)(), BuiltinActions *, void * *) qobjectdefs_impl.h 501 0x1000da7e3 70 void QtPrivate::FunctionPointer<void (BuiltinActions:: *)()>::call<QtPrivate::List<>, void>(void (BuiltinActions:: *)(), BuiltinActions *, void * *) qobjectdefs_impl.h 520 0x1000da750 71 QtPrivate::QSlotObject<void (BuiltinActions:: *)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void * *, bool *) qobject_impl.h 143 0x1000da678 72 QtPrivate::QSlotObjectBase::call(QObject *, void * *) qobject_impl.h 124 0x10b620f16 73 QMetaObject::activate(QObject *, int, int, void * *) qobject.cpp 3715 0x10b61c867 74 QMetaObject::activate(QObject *, QMetaObject const *, int, void * *) qobject.cpp 3595 0x10b61be9d 75 QAction::triggered(bool) moc_qaction.cpp 372 0x10972cc7b 76 QAction::activate(QAction::ActionEvent) qaction.cpp 1163 0x10972cab5 77 QAction::trigger() qaction.h 177 0x10972f007 78 QAction::qt_static_metacall(QObject *, QMetaObject::Call, int, void * *) moc_qaction.cpp 207 0x10972d37f 79 QMetaObject::activate(QObject *, int, int, void * *) qobject.cpp 3730 0x10b61ca49 80 QMetaObject::activate(QObject *, QMetaObject const *, int, void * *) qobject.cpp 3595 0x10b61be9d 81 QPlatformMenuItem::activated() moc_qplatformmenu.cpp 172 0x10aa30572 82 QPlatformMenuItem::qt_static_metacall(QObject *, QMetaObject::Call, int, void * *) moc_qplatformmenu.cpp 108 0x10aa30456 83 QMetaCallEvent::placeMetaCall(QObject *) qobject.cpp 495 0x10b612220 84 QObject::event(QEvent *) qobject.cpp 1256 0x10b614079 85 QApplicationPrivate::notify_helper(QObject *, QEvent *) qapplication.cpp 3804 0x10973c39e 86 QApplication::notify(QObject *, QEvent *) qapplication.cpp 3163 0x10973e236 87 IgorAppObject::notify(QObject *, QEvent *) IgorAppObject.cpp 803 0x100085dec 88 QCoreApplication::notifyInternal2(QObject *, QEvent *) qcoreapplication.cpp 1015 0x10b5c9b48 89 QCoreApplication::sendEvent(QObject *, QEvent *) qcoreapplication.h 225 0x10b5cea5c 90 QCoreApplicationPrivate::sendPostedEvents(QObject *, int, QThreadData *) qcoreapplication.cpp 1650 0x10b5cb047 91 QCoreApplication::sendPostedEvents(QObject *, int) qcoreapplication.cpp 1508 0x10b5ca4af 92 QCocoaEventDispatcherPrivate::processPostedEvents() qcocoaeventdispatcher.mm 883 0x11423d3de 93 QCocoaEventDispatcherPrivate::postedEventsSourceCallback(void *) qcocoaeventdispatcher.mm 920 0x11423dee8 94 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ 0x7fff8bf1da01 95 __CFRunLoopDoSources0 0x7fff8bf0fb8d 96 __CFRunLoopRun 0x7fff8bf0f1bf 97 CFRunLoopRunSpecific 0x7fff8bf0ebd8 98 RunCurrentEventLoopInMode 0x7fff910d756f 99 ReceiveNextEventCommon 0x7fff910d71ee 100 _BlockUntilNextEventMatchingListInModeWithFilter 0x7fff910d712b 101 _DPSNextEvent 0x7fff8930a8ab 102 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] 0x7fff89309e58 103 -[NSApplication run] 0x7fff892ffaf3 104 QCocoaEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) qcocoaeventdispatcher.mm 416 0x11423c216 105 QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) qeventloop.cpp 128 0x10b5c4aba 106 QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) qeventloop.cpp 204 0x10b5c4cd6 107 QCoreApplication::exec() qcoreapplication.cpp 1285 0x10b5ca364 108 QGuiApplication::exec() qguiapplication.cpp 1607 0x10a543d66 109 QApplication::exec() qapplication.cpp 2979 0x10973da59 110 main IgorQtMain.cpp 910 0x1029915fd 111 start 0x7fff8613f5c9
I believe the underlying source of the problem is in the following code in QAccessibleEvent::uniqueId():
QAccessible::Id QAccessibleEvent::uniqueId() const { if (!m_object) return m_uniqueId; QAccessibleInterface *iface = QAccessible::queryAccessibleInterface(m_object); if (!iface) return 0; if (m_child != -1) iface = iface->child(m_child); return QAccessible::uniqueId(iface); }
In my situation, iface is getting set to 0 at the following line (m_child is 6, for what that's worth):
iface = iface->child(m_child);
It seems to me that iface should be checked after this line as well, and if it's 0 then the function should return.
Attachments
Issue Links
- duplicates
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- Closed
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