Details
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Bug
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Resolution: Done
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P1: Critical
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5.15.0
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OS: Ubuntu 16.04, Windows, Linux/Yocto target board.
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All
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764b21987e36bc0734b7e8c9aab0e0d25771b56e (qt/qtquickcontrols2/dev) 386ff4f6aa9fd1ed4e05b405cf31f75be2703ec4 (qt/qtquickcontrols2/6.1) e3753afbc1f067e6915d2adcb829b11c0ae13cf7 (qt/qtquickcontrols2/6.0) 94b6245869 (qt/tqtc-qtquickcontrols2/5.15.8)
Description
This issue is related to QTBUG-78790
QTBUG-78790 was not reproducible in Qt 5.15.0.
However there is a case as below causing crash as well. When user uses two finger to repeatedly touch two items, the crash happens with the folllowing stack trace:
1 QQuickNinePatchNode::initialize(QSGTexture *, QSizeF const&, QSize const&, QQuickNinePatchData const&, QQuickNinePatchData const&, double) 0x7fffc49b65c6
2 QQuickNinePatchImage::updatePaintNode(QSGNode *, QQuickItem::UpdatePaintNodeData *) 0x7fffc49b7421
3 QQuickWindowPrivate::updateDirtyNode(QQuickItem *) 0x7fffc6c8e200
4 QQuickWindowPrivate::updateDirtyNodes() 0x7fffc6c8e83d
5 QQuickWindowPrivate::syncSceneGraph() 0x7fffc6c8fc40
6 QSGRenderThread::sync(bool, bool) 0x7fffc6c370b5
7 QSGRenderThread::syncAndRender(QImage *) 0x7fffc6c39461
8 QSGRenderThread::run() 0x7fffc6c3cd8b
9 QThreadPrivate::start(void *) 0x7ffff66e6415
10 start_thread pthread_create.c 333 0x7ffff5abb6ba
11 clone clone.S 109 0x7ffff5dd84dd
You can refer the attached source code.
(Since there is only one mouse device, I use Timer for a touch action)