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Details

Type: Bug
Resolution: Done
Priority: P1: Critical
Fix Version/s: 5.12.10, 5.15.1, 6.1.0 RC
Affects Version/s: 5.12.8, 5.14.2, 5.15.0
Component/s: Quick: Controls 2
Labels:
None
Environment:
Ubuntu 18.04, Windows 10/MS Surface 4 Pro

Platform/s:

Linux/X11, Windows
Commits:
04901b170e009d844232067446fdd56f270d155d (qt/qtquickcontrols2/dev) 7810b97febd0bfe00132dec785c21ca4a361c818 (qt/qtquickcontrols2/5.15) 3a5a2408266ec47f350a89419f1ec618442c1d60 (qt/qtquickcontrols2/5.12)

Description

Following causes crash at app exit by closing window or pressing alt+F4:

import QtQuick 2.12
import QtQuick.Controls 2.12

ApplicationWindow {
    visible: true
    width: 640
    height: 480

    StackView {
        anchors.fill: parent

        initialItem: Rectangle {
            Popup {
                visible: true
                anchors.centerIn: Overlay.overlay

                width: 100
                height: 100
            }
        }
    }
}

The problem disappears when

1) Popup is not centered in overlay

2) StackView has no anchors set

3) Popup has parent set to Overlay.overlay

Backtrace:

1  ??                                                                        0xa0           
2  QMetaObject::cast(QObject const *) const                                  0x7ffff69c6d89 
3  QQuickPopupPositioner::reposition()                                       0x7fffd17a7d2c 
4  QQuickItem::geometryChanged(QRectF const&, QRectF const&)                 0x7fffd2cb5139 
5  QQuickItem::setImplicitWidth(double)                                      0x7fffd2cba3e2 
6  QQuickStackElement::~QQuickStackElement()                                 0x7fffd17b8909 
7  QQuickStackElement::~QQuickStackElement()                                 0x7fffd17b8929 
8  QQuickStackView::~QQuickStackView()                                       0x7fffd17b923e 
9  QQmlPrivate::QQmlElement<QQuickStackView>::~QQmlElement()                 0x7fffd107a496 
10 QObjectPrivate::deleteChildren()                                          0x7ffff69e69f3 
11 QObject::~QObject()                                                       0x7ffff69f0b5c 
12 QQuickWindow::~QQuickWindow()                                             0x7fffd2cd80b4 
13 QQmlPrivate::QQmlElement<QQuickWindowQmlImpl>::~QQmlElement()             0x7fffd2d8bccd 
14 QQmlApplicationEnginePrivate::cleanUp()                                   0x7ffff71c2dce 
15 QQmlApplicationEngine::~QQmlApplicationEngine()                           0x7ffff71c2e58 
16 main                                                          main.cpp 10 0x5555555554fa