435192 2021-03-31 17:01:37 +0000 Certain System Monitor widget display styles crash Plasmashell in KSysGuard::SensorFace>::~QQmlElement() when selecting another display style 2021-07-01 14:48:48 +0000 1 1 4 Plasma plasmashell System Monitor widgets 5.21.3 Neon Linux RESOLVED FIXED NOR crash 1.0 1 roblokazyt plasma-bugs-null ahiemstra bugseforuns ByteEnable dontarius emaster987 feichong.zgbl kde kdebugs matheus.scattolinanselmo msdobrescu nate notmart postix https://invent.kde.org/plasma/plasma-systemmonitor/commit/5d0c9551ab7e0a5b2f1e97f1453871e970e3bb3a 5.21.5 0 oldest_to_newest 2020924 0 roblokazyt 2021-03-31 17:01:37 +0000 SUMMARY When you select the Applications Table or Process Table in a System Monitor widget on your desktop (I haven't tried panels yet, but it probably does the same thing) and then select another type, it crashes Plasma Shell. STEPS TO REPRODUCE 1. Add a System Monitor widget to your desktop 2. Edit the widget, and set the display style to Applications Table or Process Table 3. Select another display style that isn't Applications Table or Process Table 4. Plasma Shell crashes OBSERVED RESULT Plasma Shell crashes when you do these steps. EXPECTED RESULT It's supposed to change the display style normally, without crashing. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Kernel 5.4 KDE Plasma Version: 5.21.3 KDE Frameworks Version: 5.80 Qt Version: 5.15.2 2021158 1 kde 2021-04-01 07:46:01 +0000 Changing ApplciationTable to LineChart: #0 0x000055555a8ccb30 in () #1 0x00007ffff01fe7e4 in QQuickDialogButtonBoxPrivate::getContentWidth() const (this=0x55555a105aa0) at qquickdialogbuttonbox.cpp:325 #2 0x00007ffff01f4238 in QQuickControlPrivate::updateImplicitContentWidth() (this=0x55555a105aa0) at qquickcontrol.cpp:462 #3 0x00007ffff01fe9d5 in QQuickDialogButtonBoxPrivate::itemImplicitWidthChanged(QQuickItem*) (this=0x55555a105aa0, item=0x555555938c70) at qquickdialogbuttonbox.cpp:202 #4 0x00007ffff766720d in QQuickItemPrivate::implicitWidthChanged() (this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qarraydata.h:236 #5 0x00007ffff76603b6 in QQuickItem::setImplicitSize(double, double) (this=this@entry=0x555555938c70, w=w@entry=0, h=h@entry=0) at items/qquickitem.cpp:6935 #6 0x00007fffe04aa802 in QQuickLayoutPrivate::applySizeHints() const (this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qsize.h:315 #7 0x00007fffe04aa84b in QQuickLayout::ensureLayoutItemsUpdated() const (this=<optimized out>) at qquicklayout.cpp:854 #8 0x00007fffe04adcfe in QQuickGridLayoutBase::itemCount() const (this=<optimized out>) at qquicklinearlayout.cpp:432 #9 0x00007fffe04a9a88 in QQuickLayout::deactivateRecur() (this=this@entry=0x555555938c70) at qquicklayout.cpp:916 #10 0x00007fffe04adc62 in QQuickGridLayoutBase::~QQuickGridLayoutBase() (this=0x555555938c70, __in_chrg=<optimized out>) at qquicklinearlayout.cpp:313 #11 0x00007fffe04b51d5 in QQuickLinearLayout::~QQuickLinearLayout() (this=0x555555938c70, __in_chrg=<optimized out>) at ./qquicklinearlayout_p.h:228 #12 QQuickRowLayout::~QQuickRowLayout() (this=0x555555938c70, __in_chrg=<optimized out>) at ./qquicklinearlayout_p.h:228 #13 QQmlPrivate::QQmlElement<QQuickRowLayout>::~QQmlElement() (this=0x555555938c70, __in_chrg=<optimized out>) at ../../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144 #14 QQmlPrivate::QQmlElement<QQuickRowLayout>::~QQmlElement() (this=0x555555938c70, __in_chrg=<optimized out>) at ../../../include/QtQml/../../src/qml/qml/qqmlprivate.h:144 #15 0x00007ffff5bdfcfe in QObjectPrivate::deleteChildren() (this=0x55555a105aa0) at kernel/qobject.cpp:2104 #16 0x00007ffff5bea726 in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1082 #17 0x00007ffff766dc2a in QQuickItem::~QQuickItem() (this=0x55555a1059e0, __in_chrg=<optimized out>) at items/qquickitem.cpp:2364 #18 0x00007fffe0d04659 in () at /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Templates.2/libqtquicktemplates2plugin.so #19 0x00007ffff5bdfcfe in QObjectPrivate::deleteChildren() (this=0x555559f80090) at kernel/qobject.cpp:2104 #20 0x00007ffff5bea726 in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1082 #21 0x00007fffe0d027d2 in () at /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Templates.2/libqtquicktemplates2plugin.so #22 0x00007ffff5bdfcfe in QObjectPrivate::deleteChildren() (this=0x555555ab3200) at kernel/qobject.cpp:2104 #23 0x00007ffff5bea726 in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1082 #24 0x00007ffff766dc2a in QQuickItem::~QQuickItem() (this=0x555559710c20, __in_chrg=<optimized out>) at items/qquickitem.cpp:2364 #25 0x00007fffe0116a49 in QQmlPrivate::QQmlElement<KSysGuard::SensorFace>::~QQmlElement() (this=0x555559710c20, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtQml/qqmlprivate.h:142 #26 QQmlPrivate::QQmlElement<KSysGuard::SensorFace>::~QQmlElement() (this=0x555559710c20, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtQml/qqmlprivate.h:144 #27 0x00007ffff5be3013 in QObject::event(QEvent*) (this=this@entry=0x555559710c20, e=e@entry=0x55555ca07d40) at kernel/qobject.cpp:1301 #28 0x00007ffff766f7e9 in QQuickItem::event(QEvent*) (this=0x555559710c20, ev=0x55555ca07d40) at items/qquickitem.cpp:8202 #29 0x00007ffff68b2dc3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x5555556211d0, receiver=receiver@entry=0x555559710c20, e=e@entry=0x55555ca07d40) at kernel/qapplication.cpp:3632 #30 0x00007ffff68bbbb8 in QApplication::notify(QObject*, QEvent*) (this=0x7fffffffdaa0, receiver=0x555559710c20, e=0x55555ca07d40) at kernel/qapplication.cpp:3156 #31 0x00007ffff5bb56da in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x555559710c20, event=0x55555ca07d40) at ../../include/QtCore/5.15.2/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325 #32 0x00007ffff5bb7fe1 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=0x0, event_type=0, data=0x5555556161b0) at kernel/qcoreapplication.cpp:1817 #33 0x00007ffff5c10987 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x555555736c60) at kernel/qeventdispatcher_glib.cpp:277 #34 0x00007ffff3ead17d in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #35 0x00007ffff3ead400 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #36 0x00007ffff3ead4a3 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #37 0x00007ffff5c0ffe2 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x555555742a80, flags=...) at kernel/qeventdispatcher_glib.cpp:423 #38 0x00007ffff5bb41eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fffffffd950, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141 #39 0x00007ffff5bbc394 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:121 #40 0x0000555555579ebe in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:251 2021223 2 notmart 2021-04-01 13:52:42 +0000 looking at the code seems to be an upstream qt bug. What seems to happen is that in the destructor of that dialog, void QQuickContainerPrivate::cleanup() gets called, and *after* that, QQuickDialogButtonBoxPrivate::getContentWidth() gets called (QQuickDialogButtonBoxPrivate is a QQuickContainerPrivate instance) trying to call contentModel->count() where contentModel was deleted in QQuickContainerPrivate::cleanup() 2021227 3 notmart 2021-04-01 13:58:00 +0000 *** Bug 435053 has been marked as a duplicate of this bug. *** 2022800 4 ahiemstra 2021-04-06 10:16:38 +0000 *** Bug 435304 has been marked as a duplicate of this bug. *** 2023780 5 ahiemstra 2021-04-09 09:19:06 +0000 *** Bug 435515 has been marked as a duplicate of this bug. *** 2025557 6 ahiemstra 2021-04-16 13:00:10 +0000 *** Bug 435813 has been marked as a duplicate of this bug. *** 2025587 7 ahiemstra 2021-04-16 16:04:46 +0000 Git commit 79d284374ed9544b5b9f938cc9cd9a5bf4335bde by Arjen Hiemstra. Committed on 16/04/2021 at 16:04. Pushed by ahiemstra into branch 'master'. Remove RowLayout from KillDialog DialogButtonBox RowLayout does something which will trigger a crash when the dialogbuttonbox gets destroyed. So instead use the normal layout, calculate the fill width for the checkbox manually. Also remove the workaround for QTBUG-81796 since that was fixed in the meantime. M +11 -24 src/table/KillDialog.qml https://invent.kde.org/plasma/plasma-systemmonitor/commit/79d284374ed9544b5b9f938cc9cd9a5bf4335bde 2025588 8 ahiemstra 2021-04-16 16:06:35 +0000 Git commit 5d0c9551ab7e0a5b2f1e97f1453871e970e3bb3a by Arjen Hiemstra. Committed on 16/04/2021 at 16:06. Pushed by ahiemstra into branch 'Plasma/5.21'. Remove RowLayout from KillDialog DialogButtonBox RowLayout does something which will trigger a crash when the dialogbuttonbox gets destroyed. So instead use the normal layout, calculate the fill width for the checkbox manually. Also remove the workaround for QTBUG-81796 since that was fixed in the meantime. (cherry picked from commit 79d284374ed9544b5b9f938cc9cd9a5bf4335bde) M +11 -24 src/table/KillDialog.qml https://invent.kde.org/plasma/plasma-systemmonitor/commit/5d0c9551ab7e0a5b2f1e97f1453871e970e3bb3a 2026867 9 kde 2021-04-22 07:05:58 +0000 *** Bug 436010 has been marked as a duplicate of this bug. *** 2027151 10 kde 2021-04-23 07:43:33 +0000 *** Bug 436055 has been marked as a duplicate of this bug. *** 2030122 11 ahiemstra 2021-05-05 08:45:57 +0000 *** Bug 436609 has been marked as a duplicate of this bug. *** 2035845 12 138800 emaster987 2021-05-26 10:26:27 +0000 Created attachment 138800 New crash information added by DrKonqi plasma-systemmonitor (5.21.5) using Qt 5.15.2 - What I was doing when the application crashed: Editing System-monitor pages - Unusual behavior I noticed: No unusual behavior - Custom settings of the application: No custom settings -- Backtrace (Reduced): #4 0x00007fdd15f5806f in QQuickItem::setVisible(bool) () from /lib64/libQt5Quick.so.5 #5 0x00007fdd0cb9d86a in ToolBarLayoutDelegate::ensureItemVisibility() () from /usr/lib64/qt5/qml/org/kde/kirigami.2/libkirigamiplugin.so #6 0x00007fdd288884b0 in void doActivate<false>(QObject*, int, void**) () from /lib64/libQt5Core.so.5 #7 0x00007fdd15f5a8cb in QQuickItemPrivate::setEffectiveVisibleRecur(bool) () from /lib64/libQt5Quick.so.5 #8 0x00007fdd15f5e119 in QQuickItem::setParentItem(QQuickItem*) () from /lib64/libQt5Quick.so.5 2044564 13 kde 2021-07-01 14:48:48 +0000 *** Bug 439314 has been marked as a duplicate of this bug. *** 138800 2021-05-26 10:26:27 +0000 2021-05-26 10:26:27 +0000 New crash information added by DrKonqi plasma-systemmonitor-20210526-122222.kcrash text/plain 4022 emaster987 QXBwbGljYXRpb246IHBsYXNtYS1zeXN0ZW1tb25pdG9yICg1LjIxLjUpCgpRdCBWZXJzaW9uOiA1 LjE1LjIKRnJhbWV3b3JrcyBWZXJzaW9uOiA1LjgxLjAKT3BlcmF0aW5nIFN5c3RlbTogTGludXgg NS4xMS4yMS0zMDAuZmMzNC54ODZfNjQgeDg2XzY0CldpbmRvd2luZyBTeXN0ZW06IFgxMQpEcmtv 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