Application: systemsettings5 (5.22.80)

Qt Version: 5.15.2
Frameworks Version: 5.83.0
Operating System: Linux 5.8.0-53-generic x86_64
Windowing System: Wayland
Drkonqi Version: 5.22.80
Distribution: KDE neon Unstable Edition

-- Information about the crash:
- What I was doing when the application crashed:
I was using Sweet global theme, System Settings crashed when I tried to switch to Breeze Dark with double-click on it.

The crash can be reproduced sometimes.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Content of s_kcrashErrorMessage: [Current thread is 1 (Thread 0x7ff2748b08c0 (LWP 30613))]
[New LWP 30634]
[New LWP 30635]
[New LWP 30636]
[New LWP 30637]
[New LWP 30638]
[New LWP 30639]
[New LWP 30640]
[New LWP 30664]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007ff278e96aff in __GI___poll (fds=fds@entry=0x7ffec1935558, nfds=nfds@entry=1, timeout=timeout@entry=1000) at ../sysdeps/unix/sysv/linux/poll.c:29

Thread 9 (Thread 0x7ff2526c5700 (LWP 30664)):
#0  0x00007ff278e96b0e in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff276ed636e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7ff2440feb80, timeout=<optimized out>, context=0x7ff24410ff90) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7ff24410ff90, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007ff276ed64a3 in g_main_context_iteration (context=0x7ff24410ff90, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007ff279461ffb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff2441fcd00, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007ff2794061eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff2526c4cc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007ff279220a52 in QThread::exec() (this=this@entry=0x558b300ae130) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007ff2782c1fa9 in QQmlThreadPrivate::run() (this=0x558b300ae130) at qml/ftw/qqmlthread.cpp:155
#8  0x00007ff279221bec in QThreadPrivate::start(void*) (arg=0x558b300ae130) at thread/qthread_unix.cpp:329
#9  0x00007ff277897609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007ff278ea3293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7ff2535ef700 (LWP 30640)):
#0  g_mutex_unlock (mutex=0x7ff24c000c20) at ../../../glib/gthread-posix.c:1493
#1  0x00007ff276ed5437 in g_main_context_acquire (context=0x7ff24c000c20) at ../../../glib/gmain.c:3389
#2  0x00007ff276ed6225 in g_main_context_iterate (context=context@entry=0x7ff24c000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:3997
#3  0x00007ff276ed64a3 in g_main_context_iteration (context=0x7ff24c000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007ff279461ffb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff24c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007ff2794061eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff2535eecc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007ff279220a52 in QThread::exec() (this=this@entry=0x558b11108310) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007ff2782c1fa9 in QQmlThreadPrivate::run() (this=0x558b11108310) at qml/ftw/qqmlthread.cpp:155
#8  0x00007ff279221bec in QThreadPrivate::start(void*) (arg=0x558b11108310) at thread/qthread_unix.cpp:329
#9  0x00007ff277897609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007ff278ea3293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7ff262ffd700 (LWP 30639)):
#0  0x00007ff27ab82e11 in  () at /lib64/ld-linux-x86-64.so.2
#1  0x00007ff27ab88f2c in __tls_get_addr () at /lib64/ld-linux-x86-64.so.2
#2  0x00007ff2792210ba in get_thread_data () at thread/qthread_unix.cpp:207
#3  QThreadData::current(bool) (createIfNecessary=createIfNecessary@entry=true) at thread/qthread_unix.cpp:207
#4  0x00007ff279461ece in postEventSourcePrepare(GSource*, gint*) (s=0x7ff258004bb0, timeout=timeout@entry=0x7ff262ffcaf4) at kernel/qeventdispatcher_glib.cpp:253
#5  0x00007ff276ed58ef in g_main_context_prepare (context=context@entry=0x7ff258000c20, priority=priority@entry=0x7ff262ffcb80) at ../../../glib/gmain.c:3619
#6  0x00007ff276ed629b in g_main_context_iterate (context=context@entry=0x7ff258000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4027
#7  0x00007ff276ed64a3 in g_main_context_iteration (context=0x7ff258000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#8  0x00007ff279461ffb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff258000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#9  0x00007ff2794061eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff262ffccc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#10 0x00007ff279220a52 in QThread::exec() (this=this@entry=0x558b10e23ca0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#11 0x00007ff2782c1fa9 in QQmlThreadPrivate::run() (this=0x558b10e23ca0) at qml/ftw/qqmlthread.cpp:155
#12 0x00007ff279221bec in QThreadPrivate::start(void*) (arg=0x558b10e23ca0) at thread/qthread_unix.cpp:329
#13 0x00007ff277897609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#14 0x00007ff278ea3293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7ff2637fe700 (LWP 30638)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558b10a720ac) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x558b10a72058, cond=0x558b10a72080) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x558b10a72080, mutex=0x558b10a72058) at pthread_cond_wait.c:647
#3  0x00007ff271de3e6b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007ff271de3a6b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007ff277897609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007ff278ea3293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7ff263fff700 (LWP 30637)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558b10a720a8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x558b10a72058, cond=0x558b10a72080) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x558b10a72080, mutex=0x558b10a72058) at pthread_cond_wait.c:647
#3  0x00007ff271de3e6b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007ff271de3a6b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007ff277897609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007ff278ea3293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7ff270ebc700 (LWP 30636)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558b10a720a8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x558b10a72058, cond=0x558b10a72080) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x558b10a72080, mutex=0x558b10a72058) at pthread_cond_wait.c:647
#3  0x00007ff271de3e6b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007ff271de3a6b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007ff277897609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007ff278ea3293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7ff2716bd700 (LWP 30635)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558b10a720a8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x558b10a72058, cond=0x558b10a72080) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x558b10a72080, mutex=0x558b10a72058) at pthread_cond_wait.c:647
#3  0x00007ff271de3e6b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007ff271de3a6b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007ff277897609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007ff278ea3293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ff273c11700 (LWP 30634)):
#0  0x00007ff278e96aff in __GI___poll (fds=0x7ff26c005240, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff276ed636e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7ff26c005240, timeout=<optimized out>, context=0x7ff26c000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7ff26c000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007ff276ed64a3 in g_main_context_iteration (context=0x7ff26c000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007ff279461ffb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff26c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007ff2794061eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff273c10cb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007ff279220a52 in QThread::exec() (this=this@entry=0x7ff277f61d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007ff277eddf4b in QDBusConnectionManager::run() (this=0x7ff277f61d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179
#8  0x00007ff279221bec in QThreadPrivate::start(void*) (arg=0x7ff277f61d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:329
#9  0x00007ff277897609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007ff278ea3293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ff2748b08c0 (LWP 30613)):
[KCrash Handler]
#6  0x00007ff276ba4794 in QWaylandClientExtensionPrivate::handleRegistryGlobal(void*, wl_registry*, unsigned int, QString const&, unsigned int) (data=0x558b16d82560, registry=0x558b1084fbc0, id=45, interface=..., version=1) at global/qwaylandclientextension.cpp:67
#7  0x00007ff276b80822 in QtWaylandClient::QWaylandDisplay::registry_global(unsigned int, QString const&, unsigned int) (this=<optimized out>, id=45, interface=..., version=1) at qwaylanddisplay.cpp:396
#8  0x00007ff276baed16 in QtWayland::wl_registry::handle_global(void*, wl_registry*, unsigned int, char const*, unsigned int) (data=0x558b1084df00, object=<optimized out>, name=45, interface=0x558b152f3860 "org_kde_kwin_blur_manager", version=1) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qarraydata.h:236
#9  0x00007ff274a82ff5 in ffi_call_unix64 () at ../src/x86/unix64.S:101
#10 0x00007ff274a8240a in ffi_call_int (cif=<optimized out>, fn=<optimized out>, rvalue=<optimized out>, avalue=<optimized out>, closure=<optimized out>) at ../src/x86/ffi64.c:669
#11 0x00007ff276afc3a8 in wl_closure_invoke (closure=0x558b152f3780, flags=1, target=<optimized out>, opcode=0, data=<optimized out>) at ../src/connection.c:1018
#12 0x00007ff276af8c48 in dispatch_event (display=display@entry=0x558b10852110, queue=<optimized out>) at ../src/wayland-client.c:1445
#13 0x00007ff276afa21c in dispatch_queue (queue=0x558b108521e0, display=0x558b10852110) at ../src/wayland-client.c:1591
#14 wl_display_dispatch_queue_pending (display=0x558b10852110, queue=0x558b108521e0) at ../src/wayland-client.c:1833
#15 0x00007ff276afa280 in wl_display_dispatch_pending (display=<optimized out>) at ../src/wayland-client.c:1896
#16 0x00007ff276b80155 in QtWaylandClient::QWaylandDisplay::flushRequests() (this=0x558b1084def0) at qwaylanddisplay.cpp:221
#17 0x00007ff27943e730 in doActivate<false>(QObject*, int, void**) (sender=0x558b108cfa20, signal_index=4, argv=0x7ffec1936310) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:395
#18 0x00007ff279437ac7 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x558b108cfa20, m=m@entry=0x7ff2796a11c0 <QAbstractEventDispatcher::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x0) at kernel/qobject.cpp:3946
#19 0x00007ff279404287 in QAbstractEventDispatcher::awake() (this=this@entry=0x558b108cfa20) at .moc/moc_qabstracteventdispatcher.cpp:149
#20 0x00007ff27946201c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x558b108cfa20, flags=...) at kernel/qeventdispatcher_glib.cpp:430
#21 0x00007ff2794061eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffec1936430, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#22 0x00007ff27940e394 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#23 0x0000558b1025b272 in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at ./app/main.cpp:208
[Inferior 1 (process 30613) detached]

Reported using DrKonqi