Bug 507029

I encountered the same problem after upgrading the KDE Framework to `6.16.0` (all the software info/versions match with the initial comment in this report)
Plasmashell kept constantly crashing after log in. System was unusable until downgrade.

I'm using NVidia drivers and NVidia discrete card only.

As a fix I had to rollback the upgrade to get KDE Framework version `6.15.0` back.

Encountered same problem KDE Frameworks v6.16.0 on F41 / 6.15.5 kernel / Wayland / Nvidia drivers from RPM Fusion

New KDE Plasma upgrade to 6.4.3 is available in Fedora 42.
After upgrading all the packages the issue does not occur anymore.

Software versions after last upgrade:
```
Operating System: Fedora Linux 42
KDE Plasma Version: 6.4.3
KDE Frameworks Version: 6.16.0
Qt Version: 6.9.1
Kernel Version: 6.15.6-200.fc42.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 12 × Intel® Core™ i7-10750H CPU @ 2.60GHz
Memory: 32 GiB of RAM (31.1 GiB usable)
Graphics Processor: Quadro T1000
```

Unfortunately KDE Plasma 6.4.3 with KDE Frameworks 6.16.0 also crashes.
I'll attach two gdb backtraces from running `plasmashell --replace` and `systemsettings`.

Created attachment 183305 [details]
gdb backtrace from running plasmashell --replace

Created attachment 183306 [details]
gdb backtrace from running systemsettings

I tried removing `~/.config/plasma-org.kde.plasma.desktop-appletsrc` config file, but plasmashell still crashed with the default config.
After that I started `kcmshell6 kcm_qtquicksettings` and changed the `Rendering Backend` to `Automatic` (was `Software`). Restarted KDE and it seems OK. I also restored my previous `~/.config/plasma-org.kde.plasma.desktop-appletsrc` config and it still works.

Pasting the backtrace from plasmashell inline, for visibility and searchability:

Thread 1 (Thread 0x7f8a2325b300 (LWP 3161)):
#0  0x00007f8a2c1d5245 in KCrash::defaultCrashHandler (sig=11) at /usr/src/debug/kf6-kcrash-6.16.0-1.fc42.x86_64/src/kcrash.cpp:538
        disp = <optimized out>
        display = 0x0
        data = {<KCrash::MetadataWriter> = {_vptr.MetadataWriter = 0x7f8a2c1dd808 <vtable for KCrash::Metadata+16>}, argv = {_M_elems = {0x0, 0x7f8a2c1db70d "--qtversion", 0x560c60e61bc0 "6.9.1", 0x7f8a2c1db720 "--kdeframeworksversion", 0x7f8a2c1db719 "6.16.0", 0x7f8a2c1db758 "--platform", 0x560c61608540 "xcb", 0x0 <repeats 31 times>}}, argc = 7, m_writer = 0x7fff162528f0}
        platformName = {d = {d = 0x560c61608530, ptr = 0x560c61608540 "xcb", size = 3}, static _empty = 0 '\000'}
        about = <optimized out>
        argv = <optimized out>
        ini = {<KCrash::MetadataWriter> = {_vptr.MetadataWriter = 0x7f8a2c1dd838 <vtable for KCrash::MetadataINIWriter+16>}, writable = true, fd = 44}
        sigtxt = "\000\000\001\000\000\000\000\000\000"
        pidtxt = "X)%\026\377\177\000\0000\346\365h\fV\000\000\220)%\026"
        argc = <optimized out>
        crashRecursionCounter = 2
#1  0x00007f8a28a27c30 in <signal handler called> () at /lib64/libc.so.6
#2  0x00007f8a2c253724 in wl_proxy_marshal_flags (proxy=0x560c6162e570, opcode=1, interface=0x0, version=2, flags=0) at ../src/wayland-client.c:853
        args = {{i = 371536416, u = 371536416, f = 371536416, s = 0x7fff16253220 "\200\266\034*\212\177", o = 0x7fff16253220, n = 371536416, a = 0x7fff16253220, h = 371536416}, {i = 1753785296, u = 1753785296, f = 1753785296, s = 0x560c6888a3d0 "", o = 0x560c6888a3d0, n = 1753785296, a = 0x560c6888a3d0, h = 1753785296}, {i = 371536656, u = 371536656, f = 371536656, s = 0x7fff16253310 "", o = 0x7fff16253310, n = 371536656, a = 0x7fff16253310, h = 371536656}, {i = 371536656, u = 371536656, f = 371536656, s = 0x7fff16253310 "", o = 0x7fff16253310, n = 371536656, a = 0x7fff16253310, h = 371536656}, {i = 371536576, u = 371536576, f = 371536576, s = 0x7fff162532c0 "`3%\026\377\177", o = 0x7fff162532c0, n = 371536576, a = 0x7fff162532c0, h = 371536576}, {i = 716352587, u = 716352587, f = 716352587, s = 0x7f8a2ab2ac4b <QtWaylandClient::QWaylandNativeInterface::nativeResourceForWindow(QByteArray const&, QWindow*)+459> "H\211\303\351\355\376\377\377\017\037D", o = 0x7f8a2ab2ac4b <QtWaylandClient::QWaylandNativeInterface::nativeResourceForWindow(QByteArray const&, QWindow*)+459>, n = 716352587, a = 0x7f8a2ab2ac4b <QtWaylandClient::QWaylandNativeInterface::nativeResourceForWindow(QByteArray const&, QWindow*)+459>, h = 716352587}, {i = 1753785264, u = 1753785264, f = 1753785264, s = 0x560c6888a3b0 "8&\374\"\212\177", o = 0x560c6888a3b0, n = 1753785264, a = 0x560c6888a3b0, h = 1753785264}, {i = 705397056, u = 705397056, f = 705397056, s = 0x7f8a2a0b8140 <typeinfo name for QPlatformWindow> "15QPlatformWindow", o = 0x7f8a2a0b8140 <typeinfo name for QPlatformWindow>, n = 705397056, a = 0x7f8a2a0b8140 <typeinfo name for QPlatformWindow>, h = 705397056}, {i = 706524800, u = 706524800, f = 706524800, s = 0x7f8a2a1cb680 <typeinfo for QNativeInterface::Private::QWaylandWindow> "@z\346(\212\177", o = 0x7f8a2a1cb680 <typeinfo for QNativeInterface::Private::QWaylandWindow>, n = 706524800, a = 0x7f8a2a1cb680 <typeinfo for QNativeInterface::Private::QWaylandWindow>, h = 706524800}, {i = 706548184, u = 706548184, f = 706548184, s = 0x7f8a2a1d11d8 <typeinfo for QPlatformWindow> "@z\346(\212\177", o = 0x7f8a2a1d11d8 <typeinfo for QPlatformWindow>, n = 706548184, a = 0x7f8a2a1d11d8 <typeinfo for QPlatformWindow>, h = 706548184}, {i = 0, u = 0, f = 0, s = 0x0, o = 0x0, n = 0, a = 0x0, h = 0}, {i = 208006054, u = 208006054, f = 208006054, s = 0x7f8a0c65eba6 "surface", o = 0x7f8a0c65eba6, n = 208006054, a = 0x7f8a0c65eba6, h = 208006054}, {i = 7, u = 7, f = 7, s = 0x7 <error: Cannot access memory at address 0x7>, o = 0x7, n = 7, a = 0x7, h = 7}, {i = 0, u = 0, f = 0, s = 0x0, o = 0x0, n = 0, a = 0x0, h = 0}, {i = -2, u = 4294967294, f = -2, s = 0xfffffffffffffffe "", o = 0xfffffffffffffffe, n = 4294967294, a = 0xfffffffffffffffe, h = -2}, {i = 683803931, u = 683803931, f = 683803931, s = 0x7f8a28c2051b <__cxxabiv1::__vmi_class_type_info::__do_dyncast(long, __cxxabiv1::__class_type_info::__sub_kind, __cxxabiv1::__class_type_info const*, void const*, __cxxabiv1::__class_type_info const*, void const*, __cxxabiv1::__class_type_info::__dyncast_result&) const+619> "D\213L$PH\213|$@\211\301\213C\f\vD$LD\211ʉC\fH\211\376AX\203\342\373AZ\203\372\002\017\204\031\003", o = 0x7f8a28c2051b <__cxxabiv1::__vmi_class_type_info::__do_dyncast(long, __cxxabiv1::__class_type_info::__sub_kind, __cxxabiv1::__class_type_info const*, void const*, __cxxabiv1::__class_type_info const*, void const*, __cxxabiv1::__class_type_info::__dyncast_result&) const+619>, n = 683803931, a = 0x7f8a28c2051b <__cxxabiv1::__vmi_class_type_info::__do_dyncast(long, __cxxabiv1::__class_type_info::__sub_kind, __cxxabiv1::__class_type_info const*, void const*, __cxxabiv1::__class_type_info const*, void const*, __cxxabiv1::__class_type_info::__dyncast_result&) const+619>, h = 683803931}, {i = 1753785264, u = 1753785264, f = 1753785264, s = 0x560c6888a3b0 "8&\374\"\212\177", o = 0x560c6888a3b0, n = 1753785264, a = 0x560c6888a3b0, h = 1753785264}, {i = 371536544, u = 371536544, f = 371536544, s = 0x7fff162532a0 "\240\243\210h\fV", o = 0x7fff162532a0, n = 371536544, a = 0x7fff162532a0, h = 371536544}, {i = 2, u = 2, f = 2, s = 0x2 <error: Cannot access memory at address 0x2>, o = 0x2, n = 2, a = 0x2, h = 2}, {i = 0, u = 0, f = 0, s = 0x600000000 <error: Cannot access memory at address 0x600000000>, o = 0x600000000, n = 0, a = 0x600000000, h = 0}}
        ap = {{gp_offset = 1696926672, fp_offset = 22028, overflow_arg_area = 0x560c69695be0, reg_save_area = 0x7fff16253200}}
#3  0x00007f8a0c654912 in xdg_activation_token_v1_set_app_id (xdg_activation_token_v1=0x560c6162e570, app_id=0x560c65250bd0 "\340\023\277*\212\177") at /usr/src/debug/kf6-kwindowsystem-6.16.0-1.fc42.x86_64/redhat-linux-build/src/platforms/wayland/wayland-xdg-activation-v1-client-protocol.h:363
#4  QtWayland::org_kde_kwin_shadow_manager::unset (this=<optimized out>, surface=0x560c65250bd0) at /usr/src/debug/kf6-kwindowsystem-6.16.0-1.fc42.x86_64/redhat-linux-build/src/platforms/wayland/qwayland-shadow.cpp:78
#5  WindowShadow::internalDestroy (this=0x560c67ef9bf0) at /usr/src/debug/kf6-kwindowsystem-6.16.0-1.fc42.x86_64/src/platforms/wayland/windowshadow.cpp:195
        surface = 0x560c65250bd0
#6  0x00007f8a2be2b626 in KWindowShadow::destroy (this=this@entry=0x560c639420b0) at /usr/src/debug/kf6-kwindowsystem-6.16.0-1.fc42.x86_64/src/kwindowshadow.cpp:266
#7  0x00007f8a2be2b663 in KWindowShadow::~KWindowShadow (this=0x560c639420b0, this=<optimized out>) at /usr/src/debug/kf6-kwindowsystem-6.16.0-1.fc42.x86_64/src/kwindowshadow.cpp:65
#8  0x00007f8a2be2b695 in KWindowShadow::~KWindowShadow (this=0x560c639420b0, this=<optimized out>) at /usr/src/debug/kf6-kwindowsystem-6.16.0-1.fc42.x86_64/src/kwindowshadow.cpp:66
#9  0x00007f8a2915cda2 in QObjectPrivate::deleteChildren (this=this@entry=0x560c62ace6f0) at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qobject.cpp:2223
        i = 1
#10 0x00007f8a29161cb4 in QObject::~QObject (this=<optimized out>) at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qobject.cpp:1140
        d = <optimized out>
        sharedRefcount = <optimized out>
        cd = <optimized out>
        d = <optimized out>
        sharedRefcount = <optimized out>
        cd = <optimized out>
        ownThread = <optimized out>
        privThread = <optimized out>
        signalSlotMutex = <optimized out>
        locker = {m_mutex = <optimized out>, m_isLocked = <optimized out>}
        receiverCount = <optimized out>
        signal = <optimized out>
        connectionList = <optimized out>
        c = <optimized out>
        m = <optimized out>
        needToUnlock = <optimized out>
        node = <optimized out>
        sender = <optimized out>
        m = <optimized out>
        needToUnlock = <optimized out>
        senderData = <optimized out>
        slotObj = <optimized out>
        locksAreTheSame = <optimized out>
#11 0x00007f8a2c2c1ef5 in DialogShadows::~DialogShadows (this=0x560c62ace6c0, this=<optimized out>) at /usr/src/debug/libplasma-6.4.2-1.fc42.x86_64/src/plasmaquick/dialogshadows.cpp:63
#12 0x00007f8a2915cda2 in QObjectPrivate::deleteChildren (this=this@entry=0x560c6040d180) at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qobject.cpp:2223
        i = 53
#13 0x00007f8a29161cb4 in QObject::~QObject (this=this@entry=0x560c60a6fab0) at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qobject.cpp:1140
        d = <optimized out>
        sharedRefcount = <optimized out>
        cd = <optimized out>
        d = <optimized out>
        sharedRefcount = <optimized out>
        cd = <optimized out>
        ownThread = <optimized out>
        privThread = <optimized out>
        signalSlotMutex = <optimized out>
        locker = {m_mutex = <optimized out>, m_isLocked = <optimized out>}
        receiverCount = <optimized out>
        signal = <optimized out>
        connectionList = <optimized out>
        c = <optimized out>
        m = <optimized out>
        needToUnlock = <optimized out>
        node = <optimized out>
        sender = <optimized out>
        m = <optimized out>
        needToUnlock = <optimized out>
        senderData = <optimized out>
        slotObj = <optimized out>
        locksAreTheSame = <optimized out>
#14 0x00007f8a290fccb8 in QCoreApplication::~QCoreApplication (this=this@entry=0x560c60a6fab0) at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/corelib/kernel/qcoreapplication.cpp:939
        globalThreadPool = <optimized out>
#15 0x00007f8a298df9f7 in QGuiApplication::~QGuiApplication (this=this@entry=0x560c60a6fab0) at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/gui/kernel/qguiapplication.cpp:725
        d = <optimized out>
        guiThreadPool = <optimized out>
#16 0x00007f8a2b63e7cb in QApplication::~QApplication (this=this@entry=0x7fff16253830) at /usr/src/debug/qt6-qtbase-6.9.1-1.fc42.x86_64/src/widgets/kernel/qapplication.cpp:726
        d = <optimized out>
        mySet = <optimized out>
        it = {i = {i = {d = <optimized out>, bucket = <optimized out>}}}
        cend = {i = {i = {d = <optimized out>, bucket = <optimized out>}}}
        w = <optimized out>
#17 0x0000560c28fc599a in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/plasma-workspace-6.4.2-1.fc42.x86_64/shell/main.cpp:189
        format = {d = 0x560c603a0c00}
        app = {<QGuiApplication> = {<QCoreApplication> = {<QObject> = {_vptr.QObject = 0x7f8a296a39e8 <vtable for QObject+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7f8a2951d7f0 <QObject::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN7QObjectE_t>+272>, data = 0x7f8a2951d6e0 <QObject::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN7QObjectE_t>>, static_metacall = 0x7f8a291624c0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7f8a296a3a60 <QObject::qt_staticMetaObjectRelocatingContent<(anonymous namespace)::qt_meta_tag_ZN7QObjectE_t>>, extradata = 0x0}}, d_ptr = {d = 0x560c6040d180}}, static staticMetaObject = {d = {superdata = {direct = 0x560c290994c0 <QObject::staticMetaObject>}, stringdata = 0x7f8a295190e8 <QCoreApplication::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN16QCoreApplicationE_t>+392>, data = 0x7f8a29518f60 <QCoreApplication::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN16QCoreApplicationE_t>>, static_metacall = 0x7f8a29103c30 <QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7f8a296a1980 <QCoreApplication::qt_staticMetaObjectRelocatingContent<(anonymous namespace)::qt_meta_tag_ZN16QCoreApplicationE_t>>, extradata = 0x0}}, static self = 0x0}, static staticMetaObject = {d = {superdata = {direct = 0x560c29099600 <QCoreApplication::staticMetaObject>}, stringdata = 0x7f8a2a0af910 <QGuiApplication::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN15QGuiApplicationE_t>+752>, data = 0x7f8a2a0af620 <QGuiApplication::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN15QGuiApplicationE_t>>, static_metacall = 0x7f8a298dec70 <QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7f8a2a1ce640 <QGuiApplication::qt_staticMetaObjectRelocatingContent<(anonymous namespace)::qt_meta_tag_ZN15QGuiApplicationE_t>>, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x560c290995c0 <QGuiApplication::staticMetaObject>}, stringdata = 0x7f8a2bc5c548 <QApplication::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN12QApplicationE_t>+392>, data = 0x7f8a2bc5c3c0 <QApplication::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN12QApplicationE_t>>, static_metacall = 0x7f8a2b643470 <QApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7f8a2bda1160 <QApplication::qt_staticMetaObjectRelocatingContent<(anonymous namespace)::qt_meta_tag_ZN12QApplicationE_t>>, extradata = 0x0}}}
        aboutData = {d = std::unique_ptr<KAboutDataPrivate> = {get() = 0x560c60593660}}
        replace = <optimized out>
        corona = {<Plasma::Corona> = {<QObject> = {_vptr.QObject = 0x7f8a296a39e8 <vtable for QObject+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7f8a2951d7f0 <QObject::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN7QObjectE_t>+272>, data = 0x7f8a2951d6e0 <QObject::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN7QObjectE_t>>, static_metacall = 0x7f8a291624c0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7f8a296a3a60 <QObject::qt_staticMetaObjectRelocatingContent<(anonymous namespace)::qt_meta_tag_ZN7QObjectE_t>>, extradata = 0x0}}, d_ptr = {d = 0x560c60e13510}}, static staticMetaObject = {d = {superdata = {direct = 0x560c290994c0 <QObject::staticMetaObject>}, stringdata = 0x7f8a2c06e55c <_ZN6Plasma6Corona32qt_staticMetaObjectStaticContentIN12_GLOBAL__N_131qt_meta_tag_ZN6Plasma6CoronaE_tEEE.lto_priv.0+956>, data = 0x7f8a2c06e1a0 <_ZN6Plasma6Corona32qt_staticMetaObjectStaticContentIN12_GLOBAL__N_131qt_meta_tag_ZN6Plasma6CoronaE_tEEE.lto_priv.0>, static_metacall = 0x7f8a2c04a4b0 <Plasma::Corona::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7f8a2c079d00 <_ZN6Plasma6Corona36qt_staticMetaObjectRelocatingContentIN12_GLOBAL__N_131qt_meta_tag_ZN6Plasma6CoronaE_tEEE.lto_priv.0>, extradata = 0x0}}, d = 0x560c60624c40}, <QDBusContext> = {d_ptr = 0x0}, static staticMetaObject = {d = {superdata = {direct = 0x560c29099680 <Plasma::Corona::staticMetaObject>}, stringdata = 0x560c29081788 <_ZN11ShellCorona32qt_staticMetaObjectStaticContentIN12_GLOBAL__N_130qt_meta_tag_ZN11ShellCoronaE_tEEE.lto_priv.0+2152>, data = 0x560c29080f20 <_ZN11ShellCorona32qt_staticMetaObjectStaticContentIN12_GLOBAL__N_130qt_meta_tag_ZN11ShellCoronaE_tEEE.lto_priv.0>, static_metacall = 0x560c2900b6c0 <ShellCorona::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x560c29099c20 <_ZN11ShellCorona36qt_staticMetaObjectRelocatingContentIN12_GLOBAL__N_130qt_meta_tag_ZN11ShellCoronaE_tEEE.lto_priv.0>, extradata = 0x0}}, m_config = {d = {ptr = 0x560c60e21f70}}, m_configPath = {d = {d = 0x560c610a7ae0, ptr = 0x560c610a7af0 u"/home/lucky24/.config/plasmarc", size = 30}, static _empty = 0 u'\000'}, m_kdeGlobalsConfigWatcher = {value = {ptr = 0x560c60e5dcb0}, d = 0x560c60e5eb00}, m_accentColorFromWallpaperEnabled = false, m_fakeColorRequestConn = {d_ptr = 0x0}, m_screenPool = 0x560c60e223e0, m_shell = {d = {d = 0x0, ptr = 0x560c2907d880 u"org.kde.plasma.desktop", size = 22}, static _empty = 0 u'\000'}, m_activityController = 0x560c60e2c2a0, m_panelViews = {d = {d = {ptr = 0x560c6268e490}}}, m_desktopViewForScreen = {d = 0x560c615ff3e0}, m_pendingScreenChanges = {d = 0x0}, m_desktopDefaultsConfig = {<KConfigBase> = {_vptr.KConfigBase = 0x7f8a2b583220 <vtable for KConfigGroup+16>}, d = {d = {ptr = 0x0}}}, m_lnfDefaultsConfig = {<KConfigBase> = {_vptr.KConfigBase = 0x7f8a2b583220 <vtable for KConfigGroup+16>}, d = {d = {ptr = 0x0}}}, m_waitingPanels = {<QListSpecialMethods<Plasma::Containment*>> = {<QListSpecialMethodsBase<Plasma::Containment*>> = {<No data fields>}, <No data fields>}, d = {d = 0x0, ptr = 0x0, size = 0}}, m_activityContainmentPlugins = {d = 0x560c61551fe0}, m_addPanelAction = 0x560c60ea6c40, m_addPanelsMenu = std::unique_ptr<QMenu> = {get() = 0x560c60e75ce0}, m_lookAndFeelPackage = {_vptr.Package = 0x7f8a2bfe2fe0 <vtable for KPackage::Package+16>, d = {d = {ptr = 0x560c60e8a7b0}}}, m_previousWId = 0, m_blockRestorePreviousWindow = false, m_waitingPanelsTimer = {<QObject> = {_vptr.QObject = 0x7f8a296a39e8 <vtable for QObject+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7f8a2951d7f0 <QObject::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN7QObjectE_t>+272>, data = 0x7f8a2951d6e0 <QObject::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN7QObjectE_t>>, static_metacall = 0x7f8a291624c0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7f8a296a3a60 <QObject::qt_staticMetaObjectRelocatingContent<(anonymous namespace)::qt_meta_tag_ZN7QObjectE_t>>, extradata = 0x0}}, d_ptr = {d = 0x560c60e2aa80}}, static staticMetaObject = {d = {superdata = {direct = 0x560c290994c0 <QObject::staticMetaObject>}, stringdata = 0x7f8a2951e078 <QTimer::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN6QTimerE_t>+280>, data = 0x7f8a2951df60 <QTimer::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN6QTimerE_t>>, static_metacall = 0x7f8a29176800 <QTimer::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7f8a296a40a0 <QTimer::qt_staticMetaObjectRelocatingContent<(anonymous namespace)::qt_meta_tag_ZN6QTimerE_t>>, extradata = 0x0}}}, m_appConfigSyncTimer = {<QObject> = {_vptr.QObject = 0x7f8a296a39e8 <vtable for QObject+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7f8a2951d7f0 <QObject::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN7QObjectE_t>+272>, data = 0x7f8a2951d6e0 <QObject::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN7QObjectE_t>>, static_metacall = 0x7f8a291624c0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7f8a296a3a60 <QObject::qt_staticMetaObjectRelocatingContent<(anonymous namespace)::qt_meta_tag_ZN7QObjectE_t>>, extradata = 0x0}}, d_ptr = {d = 0x560c60e2ab30}}, static staticMetaObject = {d = {superdata = {direct = 0x560c290994c0 <QObject::staticMetaObject>}, stringdata = 0x7f8a2951e078 <QTimer::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN6QTimerE_t>+280>, data = 0x7f8a2951df60 <QTimer::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN6QTimerE_t>>, static_metacall = 0x7f8a29176800 <QTimer::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7f8a296a40a0 <QTimer::qt_staticMetaObjectRelocatingContent<(anonymous namespace)::qt_meta_tag_ZN6QTimerE_t>>, extradata = 0x0}}}, m_waylandWindowManagement = 0x560c60e9f110, m_previousPlasmaWindow = {wp = {d = 0x0, value = 0x0}}, m_closingDown = true, m_screenReorderInProgress = false, m_testModeLayout = {d = {d = 0x0, ptr = 0x0, size = 0}, static _empty = 0 u'\000'}, m_showingAlternatives = 0x0, m_strutManager = 0x560c60e21df0, m_shellContainmentConfig = {wp = {d = 0x0, value = 0x0}}}
        service = {<QObject> = {_vptr.QObject = 0x7f8a296a39e8 <vtable for QObject+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7f8a2951d7f0 <QObject::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN7QObjectE_t>+272>, data = 0x7f8a2951d6e0 <QObject::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN7QObjectE_t>>, static_metacall = 0x7f8a291624c0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7f8a296a3a60 <QObject::qt_staticMetaObjectRelocatingContent<(anonymous namespace)::qt_meta_tag_ZN7QObjectE_t>>, extradata = 0x0}}, d_ptr = {d = 0x560c60e9e6b0}}, static staticMetaObject = {d = {superdata = {direct = 0x560c290994c0 <QObject::staticMetaObject>}, stringdata = 0x7f8a2c57b25c <KDBusService::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN12KDBusServiceE_t>+316>, data = 0x7f8a2c57b120 <KDBusService::qt_staticMetaObjectStaticContent<(anonymous namespace)::qt_meta_tag_ZN12KDBusServiceE_t>>, static_metacall = 0x7f8a2c569490 <KDBusService::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, metaTypes = 0x7f8a2c57fa40 <KDBusService::qt_staticMetaObjectRelocatingContent<(anonymous namespace)::qt_meta_tag_ZN12KDBusServiceE_t>>, extradata = 0x0}}, d = std::unique_ptr<KDBusServicePrivate> = {get() = 0x560c60e6d380}}
Warning: the current language does not match this frame.
(gdb)

It's fixed in Plasma 6.5.

*** This bug has been marked as a duplicate of bug 487660 ***