Details
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Bug
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Resolution: Done
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P1: Critical
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6.4.0 Beta4, 6.5.0 FF
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None
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83e70c3157 (qt/qtbase/dev) d255ad93ff (qt/qtbase/6.3) 88752a1377 (qt/qtbase/6.4) 83e70c3157 (qt/tqtc-qtbase/dev) d255ad93ff (qt/tqtc-qtbase/6.3) 88752a1377 (qt/tqtc-qtbase/6.4) dc7e6d14d8 (qt/qtbase/6.4.0) 124a844145 (qt/tqtc-qtbase/6.2), 5171bcd9c (dev)
Description
It happens when doing a pinch on the touchscreen in either of the QtPDF examples. Must be a fairly recent regression, because I'm sure I was testing that within the last couple of months, and it was not crashing before.
Having the Flickable take over while a pinch gesture is ongoing is not the desired behavior anyway; but crashing is even worse.
6 QMessageLogger::fatal qlogging.cpp 850
7 qt_assert qassert.cpp 68
8 QQuickDeliveryAgentPrivate::onGrabChanged qquickdeliveryagent.cpp 1712
9 QtPrivate::FunctorCall<QtPrivate::IndexesList<0, 1, 2, 3>, QtPrivate qobjectdefs_impl.h 135
10 QtPrivate::FunctionPointer<void (QQuickDeliveryAgentPrivate:: *)(QOb qobjectdefs_impl.h 172
11 QtPrivate::QPrivateSlotObject<void (QQuickDeliveryAgentPrivate:: *)( qobject_p.h 285
12 QtPrivate::QSlotObjectBase::call qobjectdefs_impl.h 363
13 doActivate<false> qobject.cpp 3972
14 QMetaObject::activate qobject.cpp 4032
15 QPointingDevice::grabChanged moc_qpointingdevice.cpp 410
16 QPointingDevicePrivate::setExclusiveGrabber qpointingdevice.cpp 473
17 QPointerEvent::setExclusiveGrabber qevent.cpp 350
18 QQuickFlickable::filterPointerEvent qquickflickable.cpp 2579
19 QQuickFlickable::childMouseEventFilter qquickflickable.cpp 2635
20 QQuickDeliveryAgentPrivate::sendFilteredPointerEventImpl qquickdeliveryagent.cpp 2383
21 QQuickDeliveryAgentPrivate::sendFilteredPointerEventImpl qquickdeliveryagent.cpp 2451
22 QQuickDeliveryAgentPrivate::sendFilteredPointerEvent qquickdeliveryagent.cpp 2332
23 QQuickDeliveryAgentPrivate::deliverUpdatedPoints qquickdeliveryagent.cpp 1912
24 QQuickDeliveryAgentPrivate::deliverPointerEvent qquickdeliveryagent.cpp 1791
25 QQuickDeliveryAgentPrivate::deliverDelayedTouchEvent qquickdeliveryagent.cpp 1234
26 QQuickDeliveryAgentPrivate::flushFrameSynchronousEvents qquickdeliveryagent.cpp 1601
27 QSGThreadedRenderLoop::polishAndSync qsgthreadedrenderloop.cpp 1480
28 QSGThreadedRenderLoop::handleUpdateRequest qsgthreadedrenderloop.cpp 1347
29 QQuickWindow::event qquickwindow.cpp 1521
30 QCoreApplicationPrivate::notify_helper qcoreapplication.cpp 1193
31 doNotify qcoreapplication.cpp 1122
32 QCoreApplication::notify qcoreapplication.cpp 1105
33 QGuiApplication::notify qguiapplication.cpp 1928
34 QCoreApplication::notifyInternal2 qcoreapplication.cpp 1026
35 QCoreApplication::sendEvent qcoreapplication.cpp 1442
36 QPlatformWindow::deliverUpdateRequest qplatformwindow.cpp 774
37 QPlatformWindow::windowEvent qplatformwindow.cpp 454
38 QXcbWindow::windowEvent qxcbwindow.cpp 2300
39 QGuiApplicationPrivate::sendQWindowEventToQPlatformWindow qguiapplication.cpp 1985
40 QGuiApplication::notify qguiapplication.cpp 1922
41 QCoreApplication::notifyInternal2 qcoreapplication.cpp 1026
42 QCoreApplication::sendEvent qcoreapplication.cpp 1442
43 QTimerInfoList::activateTimers qtimerinfo_unix.cpp 610
44 timerSourceDispatch qeventdispatcher_glib.cpp 149
45 g_main_context_dispatch
46 ??
47 g_main_context_iteration
48 QEventDispatcherGlib::processEvents qeventdispatcher_glib.cpp 393
49 QXcbGlibEventDispatcher::processEvents qxcbeventdispatcher.cpp 96
50 QEventLoop::processEvents qeventloop.cpp 100
51 QEventLoop::exec qeventloop.cpp 182
52 QCoreApplication::exec qcoreapplication.cpp 1347
53 QGuiApplication::exec qguiapplication.cpp 1860
54 main main.cpp 23
In QPointingDevicePrivate::setExclusiveGrabber(), point.pointId() looks ok; but persistentPoint->eventPoint->d->d is null. Later in QQuickDeliveryAgentPrivate::onGrabChanged(), point.id() is invalid (sometimes -1, sometimes garbage), so queryPointById() fails.
Attachments
Issue Links
- relates to
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QTBUG-77629 QML Flickable stealing touch events from PinchArea
- Closed