STEPS TO REPRODUCE 1. Add an icon applet to the desktop 2. Remove it 3. Close the "Undo" notifcation OBSERVED RESULT #5 0x00000065be102454 in () #6 0x00007f29605d5b7e in QObject::disconnect(QObject const*, char const*, QObject const*, char const*) (sender=0x2083460, signal=signal@entry=0x0, receiver=receiver@entry=0x1b3d520, method=method@entry=0x0) at /usr/src/debug/qt6-qtbase-6.5.2-1.fc38.x86_64/src/corelib/kernel/qobject.cpp:3165 #7 0x00007f2963ad2513 in Plasma::Applet::~Applet() (this=0x1b3d520, __in_chrg=<optimized out>) at /home/nico/kde6/src/plasma-framework/src/plasma/applet.cpp:77 #8 0x00007f294c57d099 in IconApplet::~IconApplet() (this=0x1b3d520, __in_chrg=<optimized out>) at /home/nico/kde6/src/plasma-workspace/applets/icon/iconapplet.cpp:54 #9 0x00007f29605cfc59 in QObject::event(QEvent*) (this=0x1b3d520, e=0x424fce0) at /usr/src/debug/qt6-qtbase-6.5.2-1.fc38.x86_64/src/corelib/kernel/qobject.cpp:1378 #10 0x00007f2961bc0af8 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt6Widgets.so.6 #11 0x00007f296057cdb8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x1b3d520, event=0x424fce0) at /usr/src/debug/qt6-qtbase-6.5.2-1.fc38.x86_64/src/corelib/kernel/qcoreapplication.cpp:1118 #12 0x00007f296057cfbd in QCoreApplication::sendEvent(QObject*, QEvent*) (receiver=<optimized out>, event=<optimized out>) at /usr/src/debug/qt6-qtbase-6.5.2-1.fc38.x86_64/src/corelib/kernel/qcoreapplication.cpp:1536 #13 0x00007f29605808d5 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=0x0, event_type=0, data=0x1380960) at /usr/src/debug/qt6-qtbase-6.5.2-1.fc38.x86_64/src/corelib/kernel/qcoreapplication.cpp:1898 #14 0x00007f2960580c0d in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=<optimized out>, event_type=<optimized out>) at /usr/src/debug/qt6-qtbase-6.5.2-1.fc38.x86_64/src/corelib/kernel/qcoreapplication.cpp:1757 #15 0x00007f296082108f in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x1633f30) at /usr/src/debug/qt6-qtbase-6.5.2-1.fc38.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:243 #16 0x00007f295f8b14fc in g_main_context_dispatch () at /lib64/libglib-2.0.so.0 #17 0x00007f295f90f6b8 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0 #18 0x00007f295f8aeb83 in g_main_context_iteration () at /lib64/libglib-2.0.so.0 #19 0x00007f296082092f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1385820, flags=...) at /usr/src/debug/qt6-qtbase-6.5.2-1.fc38.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:393 #20 0x00007f29605899f3 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fffe09f09d0, flags=..., flags@entry=...) at /usr/src/debug/qt6-qtbase-6.5.2-1.fc38.x86_64/src/corelib/global/qflags.h:34 #21 0x00007f296058569d in QCoreApplication::exec() () at /usr/src/debug/qt6-qtbase-6.5.2-1.fc38.x86_64/src/corelib/global/qflags.h:74 #22 0x0000000000425b79 in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /home/nico/kde6/src/plasma-workspace/shell/main.cpp:236 SOFTWARE/OS VERSIONS KDE Plasma Version: master KDE Frameworks Version: master Qt Version: 6.5.2 ADDITIONAL INFORMATION Wayland
Cannot reproduce with current git master and 6.5.2.
looks slightly different to https://bugs.kde.org/show_bug.cgi?id=475701 which has the exact same symptom
Can't reproduce anymore. It must have gotten fixed by something recently.
*** Bug 475701 has been marked as a duplicate of this bug. ***
Just happened to me now. Dragged a *.sh from dolphin to desktop, it created an Icon widgets for URL. Delted it and closed the undo notification and it crahed with the following backtrace Thread 1 (Thread 0x7fa73dadfac0 (LWP 3463)): [KCrash Handler] #5 0x00007fa740bd1a2f in QObject::disconnect(QObject const*, char const*, QObject const*, char const*) (sender=0x557abc8c5730, signal=signal@entry=0x0, receiver=receiver@entry=0x7fa7280af0b0, method=method@entry=0x0) at /usr/src/debug/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qobject.cpp:3215 #6 0x00007fa74359e783 in Plasma::Applet::~Applet() (this=0x7fa7280af0b0, this=<optimized out>) at /usr/src/debug/libplasma-6.0.80git.20240307T011941~61071f0f/src/plasma/applet.cpp:75 #7 0x00007fa734279c79 in IconApplet::~IconApplet() (this=0x7fa7280af0b0, this=<optimized out>) at /usr/src/debug/plasma-workspace-6.0.80git.20240309T123152~911ef51c/applets/icon/iconapplet.cpp:56 #8 0x00007fa740bca6b7 in QObject::event(QEvent*) (this=0x7fa7280af0b0, e=0x557abb0c78c0) at /usr/src/debug/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qobject.cpp:1424 #9 0x00007fa742dc1aae in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x7fa7280af0b0, e=0x557abb0c78c0) at /usr/src/debug/qtbase-everywhere-src-6.6.2/src/widgets/kernel/qapplication.cpp:3296 #10 0x00007fa740b87498 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x7fa7280af0b0, event=0x557abb0c78c0) at /usr/src/debug/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qcoreapplication.cpp:1121 #11 0x00007fa740b874d9 in QCoreApplication::sendEvent(QObject*, QEvent*) (receiver=<optimized out>, event=<optimized out>) at /usr/src/debug/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qcoreapplication.cpp:1539 #12 0x00007fa740b877f7 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=0x0, event_type=0, data=0x557ab3ac6680) at /usr/src/debug/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qcoreapplication.cpp:1901 #13 0x00007fa740da6783 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x557ab3b825e0) at /usr/src/debug/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qeventdispatcher_glib.cpp:243 #14 0x00007fa73f9aef30 in g_main_dispatch (context=0x7fa738000ef0) at ../glib/gmain.c:3476 #15 g_main_context_dispatch_unlocked (context=context@entry=0x7fa738000ef0) at ../glib/gmain.c:4284 #16 0x00007fa73f9b0b58 in g_main_context_iterate_unlocked (context=context@entry=0x7fa738000ef0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4349 #17 0x00007fa73f9b120c in g_main_context_iteration (context=0x7fa738000ef0, may_block=1) at ../glib/gmain.c:4414 #18 0x00007fa740da330c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x557ab3b05ae0, flags=...) at /usr/src/debug/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qeventdispatcher_glib.cpp:393 #19 0x00007fa740b91cbb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffe1a652a60, flags=...) at /usr/src/debug/qtbase-everywhere-src-6.6.2/src/corelib/global/qflags.h:34 #20 0x00007fa740b8b8e6 in QCoreApplication::exec() () at /usr/src/debug/qtbase-everywhere-src-6.6.2/src/corelib/global/qflags.h:74 #21 0x00007fa7413e31bc in QGuiApplication::exec() () at /usr/src/debug/qtbase-everywhere-src-6.6.2/src/gui/kernel/qguiapplication.cpp:1925 #22 0x00007fa742dbeee5 in QApplication::exec() () at /usr/src/debug/qtbase-everywhere-src-6.6.2/src/widgets/kernel/qapplication.cpp:2574 #23 0x0000557ab312615e in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/plasma-workspace-6.0.80git.20240309T123152~911ef51c/shell/main.cpp:211 Operating System: openSUSE Tumbleweed 20240308 KDE Plasma Version: 6.0.80 KDE Frameworks Version: 6.0.0 Qt Version: 6.6.2 Kernel Version: 6.7.7-1-default (64-bit) Graphics Platform: Wayland Processors: 12 × AMD Ryzen 5 7600 6-Core Processor Memory: 31.1 GiB of RAM Graphics Processor: AMD Radeon RX 480 Graphics
Created attachment 167119 [details] Full crash backtrace
Not fixed
*** Bug 484635 has been marked as a duplicate of this bug. ***
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/4165
Git commit 03b398ed64221638084b88121edf69888f6475a3 by Nicolas Fella. Committed on 01/04/2024 at 23:47. Pushed by nicolasfella into branch 'master'. [applets/icon] Delay deleting the open with menu The menu is parent to the open actions, which are added as contexual actions to the applet The Applet dtor accesses these actions, so by deleting the menu (and thus the actions) it will access dangling pointers To avoid that delete the menu later M +4 -2 applets/icon/iconapplet.cpp M +1 -1 applets/icon/iconapplet.h https://invent.kde.org/plasma/plasma-workspace/-/commit/03b398ed64221638084b88121edf69888f6475a3
Git commit 861f3cfb85ca324f7b26baab287c6af758a0ba2b by Nicolas Fella. Committed on 01/04/2024 at 23:59. Pushed by nicolasfella into branch 'Plasma/6.0'. [applets/icon] Delay deleting the open with menu The menu is parent to the open actions, which are added as contexual actions to the applet The Applet dtor accesses these actions, so by deleting the menu (and thus the actions) it will access dangling pointers To avoid that delete the menu later (cherry picked from commit 03b398ed64221638084b88121edf69888f6475a3) M +4 -2 applets/icon/iconapplet.cpp M +1 -1 applets/icon/iconapplet.h https://invent.kde.org/plasma/plasma-workspace/-/commit/861f3cfb85ca324f7b26baab287c6af758a0ba2b
*** Bug 483574 has been marked as a duplicate of this bug. ***
*** Bug 485504 has been marked as a duplicate of this bug. ***