Bug 451791

Application: plasmashell (5.24.80)

Qt Version: 5.15.3
Frameworks Version: 5.93.0
Operating System: Linux 5.11.0-40-generic x86_64
Windowing System: Wayland
Distribution: KDE neon Unstable Edition
DrKonqi: 5.24.80 [CoredumpBackend]

-- Information about the crash:
- What I was doing when the application crashed:
I had an horizontal panel on bottom, I added a vertical panel to left side, removed the vertical panel, closed the notification with 'Undo' button and Plasma crashed.

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Content of s_kcrashErrorMessage: std::unique_ptr<char []> = {get() = 0x0}
[New LWP 10402]
[New LWP 10472]
[New LWP 17124]
[New LWP 10641]
[New LWP 10418]
[New LWP 17122]
[New LWP 10570]
[New LWP 10593]
[New LWP 10575]
[New LWP 10601]
[New LWP 10661]
[New LWP 10716]
[New LWP 17064]
[New LWP 10432]
[New LWP 17123]
[New LWP 10419]
[New LWP 10701]
[New LWP 10611]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/bin/plasmashell'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  __GI_raise (sig=sig@entry=11) at ../sysdeps/unix/sysv/linux/raise.c:50
[Current thread is 1 (Thread 0x7fc02ccb69c0 (LWP 10402))]
__preamble__

[Current thread is 1 (Thread 0x7fc02ccb69c0 (LWP 10402))]

Thread 18 (Thread 0x7fbff1395700 (LWP 10611)):
#0  0x00007fc030b689cf in __GI___poll (fds=0x7fbfe4005d20, nfds=1, timeout=2224256) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc02f40036e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fbfe4005d20, timeout=<optimized out>, context=0x7fbfe4000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7fbfe4000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007fc02f4004a3 in g_main_context_iteration (context=0x7fbfe4000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007fc031139642 in QEventDispatcherGlib::processEvents (this=0x7fbfe4000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007fc0310dd87b in QEventLoop::exec (this=this@entry=0x7fbff1394ba0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007fc030ef7442 in QThread::exec (this=this@entry=0x55b5ab8281e0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007fbff14750bc in KCupsConnection::run (this=0x55b5ab8281e0) at ./libkcups/KCupsConnection.cpp:289
#8  0x00007fc030ef8623 in QThreadPrivate::start (arg=0x55b5ab8281e0) at thread/qthread_unix.cpp:331
#9  0x00007fc03088c609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fc030b75163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fbfcf7fe700 (LWP 10701)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b5ab5e8f20) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b5ab5e8ed0, cond=0x55b5ab5e8ef8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b5ab5e8ef8, mutex=0x55b5ab5e8ed0) at pthread_cond_wait.c:638
#3  0x00007fc030efe68b in QWaitConditionPrivate::wait (deadline=..., this=0x55b5ab5e8ed0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x55b5b27718b8, mutex=mutex@entry=0x55b5b27718b0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fc032b7e074 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55b5b27718a8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55b5b2771810) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007fc032b7e4e9 in QSGRenderThread::run (this=0x55b5b2771810) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007fc030ef8623 in QThreadPrivate::start (arg=0x55b5b2771810) at thread/qthread_unix.cpp:331
#9  0x00007fc03088c609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fc030b75163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fc02b974700 (LWP 10419)):
#0  0x00007fc030b689cf in __GI___poll (fds=fds@entry=0x7fc02b973be0, nfds=nfds@entry=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc02ef62a66 in poll (__timeout=-1, __nfds=2, __fds=0x7fc02b973be0) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  QtWaylandClient::EventThread::run (this=0x55b5a997c760) at qwaylanddisplay.cpp:208
#3  0x00007fc030ef8623 in QThreadPrivate::start (arg=0x55b5a997c760) at thread/qthread_unix.cpp:331
#4  0x00007fc03088c609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#5  0x00007fc030b75163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fbfbffff700 (LWP 17123)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7fbfbfffeb50, clockid=<optimized out>, expected=0, futex_word=0x7fc0040341a4) at ../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7fbfbfffeb50, clockid=<optimized out>, mutex=0x7fc004034150, cond=0x7fc004034178) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7fc004034178, mutex=0x7fc004034150, abstime=0x7fbfbfffeb50) at pthread_cond_wait.c:656
#3  0x00007fc030efe618 in QWaitConditionPrivate::wait_relative (this=0x7fc004034150, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait (deadline=..., this=0x7fc004034150) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait (this=this@entry=0x7fc00400ce50, mutex=mutex@entry=0x7fc00402f5d8, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007fc030efbb21 in QThreadPoolThread::run (this=0x7fc00400ce40) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:275
#7  0x00007fc030ef8623 in QThreadPrivate::start (arg=0x7fc00400ce40) at thread/qthread_unix.cpp:331
#8  0x00007fc03088c609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007fc030b75163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fc02b073700 (LWP 10432)):
#0  0x00007fc030b689cf in __GI___poll (fds=0x7fc020004a60, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc02f40036e in g_main_context_poll (priority=<optimized out>, n_fds=3, fds=0x7fc020004a60, timeout=<optimized out>, context=0x7fc020000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7fc020000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007fc02f4004a3 in g_main_context_iteration (context=0x7fc020000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007fc031139642 in QEventDispatcherGlib::processEvents (this=0x7fc020000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007fc0310dd87b in QEventLoop::exec (this=this@entry=0x7fc02b072bb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007fc030ef7442 in QThread::exec (this=this@entry=0x7fc031c15d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007fc031b91f4b in QDBusConnectionManager::run (this=0x7fc031c15d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179
#8  0x00007fc030ef8623 in QThreadPrivate::start (arg=0x7fc031c15d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:331
#9  0x00007fc03088c609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fc030b75163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fc00d7b0700 (LWP 17064)):
#0  0x00007fc030b7549e in epoll_wait (epfd=47, events=events@entry=0x7fc00d7af7f0, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x00007fc00c01627b in impl_pollfd_wait (object=<optimized out>, pfd=<optimized out>, ev=0x7fc00d7af9a0, n_ev=<optimized out>, timeout=<optimized out>) at ../spa/plugins/support/system.c:155
#2  0x00007fc00c0086f4 in loop_iterate (object=0x55b5bdd6ce48, timeout=-1) at ../spa/plugins/support/loop.c:316
#3  0x00007fbff373b0e0 in do_loop (user_data=0x55b5b1d3bd90) at ../src/pipewire/data-loop.c:80
#4  0x00007fc03088c609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#5  0x00007fc030b75163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fc00dfb1700 (LWP 10716)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b5b1c07280) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b5b1c07230, cond=0x55b5b1c07258) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b5b1c07258, mutex=0x55b5b1c07230) at pthread_cond_wait.c:638
#3  0x00007fc030efe68b in QWaitConditionPrivate::wait (deadline=..., this=0x55b5b1c07230) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x55b5b248c248, mutex=mutex@entry=0x55b5b248c240, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fc032b7e074 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55b5b248c238) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55b5b248c1a0) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007fc032b7e4e9 in QSGRenderThread::run (this=0x55b5b248c1a0) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007fc030ef8623 in QThreadPrivate::start (arg=0x55b5b248c1a0) at thread/qthread_unix.cpp:331
#9  0x00007fc03088c609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fc030b75163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fbfcffff700 (LWP 10661)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b5abb4b2b0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b5abb4b260, cond=0x55b5abb4b288) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b5abb4b288, mutex=0x55b5abb4b260) at pthread_cond_wait.c:638
#3  0x00007fc030efe68b in QWaitConditionPrivate::wait (deadline=..., this=0x55b5abb4b260) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x55b5ab55d938, mutex=mutex@entry=0x55b5ab55d930, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fc032b7e074 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55b5ab55d928) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55b5ab55d890) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007fc032b7e4e9 in QSGRenderThread::run (this=0x55b5ab55d890) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007fc030ef8623 in QThreadPrivate::start (arg=0x55b5ab55d890) at thread/qthread_unix.cpp:331
#9  0x00007fc03088c609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fc030b75163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fc00cfae700 (LWP 10601)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b5abb8d240) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b5abb8d1f0, cond=0x55b5abb8d218) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b5abb8d218, mutex=0x55b5abb8d1f0) at pthread_cond_wait.c:638
#3  0x00007fc030efe68b in QWaitConditionPrivate::wait (deadline=..., this=0x55b5abb8d1f0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x55b5abb8d3e8, mutex=mutex@entry=0x55b5abb8d3e0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fc032b7e074 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55b5abb8d3d8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55b5abb8d340) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007fc032b7e4e9 in QSGRenderThread::run (this=0x55b5abb8d340) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007fc030ef8623 in QThreadPrivate::start (arg=0x55b5abb8d340) at thread/qthread_unix.cpp:331
#9  0x00007fc03088c609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fc030b75163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fc01abed700 (LWP 10575)):
#0  0x00007fc030b689cf in __GI___poll (fds=0x7fc008004e60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc02f40036e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fc008004e60, timeout=<optimized out>, context=0x7fc008000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7fc008000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007fc02f4004a3 in g_main_context_iteration (context=0x7fc008000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007fc031139642 in QEventDispatcherGlib::processEvents (this=0x7fc008000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007fc0310dd87b in QEventLoop::exec (this=this@entry=0x7fc01abecbe0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007fc030ef7442 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007fc030ef8623 in QThreadPrivate::start (arg=0x55b5a9cb0a10) at thread/qthread_unix.cpp:331
#8  0x00007fc03088c609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007fc030b75163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fc00ffff700 (LWP 10593)):
#0  0x00007fc030b689cf in __GI___poll (fds=0x7fc004056d00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc02f40036e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fc004056d00, timeout=<optimized out>, context=0x7fc00402f7b0) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7fc00402f7b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007fc02f4004a3 in g_main_context_iteration (context=0x7fc00402f7b0, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007fc031139642 in QEventDispatcherGlib::processEvents (this=0x7fc004028940, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007fc0310dd87b in QEventLoop::exec (this=this@entry=0x7fc00fffeba0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007fc030ef7442 in QThread::exec (this=this@entry=0x55b5a9f01d20) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007fc032ab843a in QQuickPixmapReader::run (this=0x55b5a9f01d20) at util/qquickpixmapcache.cpp:1024
#8  0x00007fc030ef8623 in QThreadPrivate::start (arg=0x55b5a9f01d20) at thread/qthread_unix.cpp:331
#9  0x00007fc03088c609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fc030b75163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fc01bfbe700 (LWP 10570)):
#0  0x00007fc030b689cf in __GI___poll (fds=0x7fc010004e60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc02f40036e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fc010004e60, timeout=<optimized out>, context=0x7fc010000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7fc010000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007fc02f4004a3 in g_main_context_iteration (context=0x7fc010000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007fc031139642 in QEventDispatcherGlib::processEvents (this=0x7fc010000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007fc0310dd87b in QEventLoop::exec (this=this@entry=0x7fc01bfbdbc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007fc030ef7442 in QThread::exec (this=this@entry=0x55b5a9c16b80) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007fc03271db39 in QQmlThreadPrivate::run (this=0x55b5a9c16b80) at qml/ftw/qqmlthread.cpp:155
#8  0x00007fc030ef8623 in QThreadPrivate::start (arg=0x55b5a9c16b80) at thread/qthread_unix.cpp:331
#9  0x00007fc03088c609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fc030b75163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fbfcd714700 (LWP 17122)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b5bd5a74c4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b5bd5a7470, cond=0x55b5bd5a7498) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b5bd5a7498, mutex=0x55b5bd5a7470) at pthread_cond_wait.c:638
#3  0x00007fc030efe68b in QWaitConditionPrivate::wait (deadline=..., this=0x55b5bd5a7470) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x55b5beee3698, mutex=mutex@entry=0x55b5beee3690, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fc032b7e074 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55b5beee3688) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55b5beee35f0) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007fc032b7e4e9 in QSGRenderThread::run (this=0x55b5beee35f0) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007fc030ef8623 in QThreadPrivate::start (arg=0x55b5beee35f0) at thread/qthread_unix.cpp:331
#9  0x00007fc03088c609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fc030b75163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fc02c175700 (LWP 10418)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b5a9969690) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b5a9969640, cond=0x55b5a9969668) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b5a9969668, mutex=0x55b5a9969640) at pthread_cond_wait.c:638
#3  0x00007fc030efe68b in QWaitConditionPrivate::wait (deadline=..., this=0x55b5a9969640) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x55b5a997d1a0, mutex=mutex@entry=0x55b5a997d198, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fc02ef62a0d in QtWaylandClient::EventThread::waitForReading (this=0x55b5a997d160) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QtWaylandClient::EventThread::run (this=0x55b5a997d160) at qwaylanddisplay.cpp:206
#7  0x00007fc030ef8623 in QThreadPrivate::start (arg=0x55b5a997d160) at thread/qthread_unix.cpp:331
#8  0x00007fc03088c609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007fc030b75163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fbfe3dd3700 (LWP 10641)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b5ae479aa0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b5ae479a50, cond=0x55b5ae479a78) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b5ae479a78, mutex=0x55b5ae479a50) at pthread_cond_wait.c:638
#3  0x00007fc030efe68b in QWaitConditionPrivate::wait (deadline=..., this=0x55b5ae479a50) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x55b5ab13ad68, mutex=mutex@entry=0x55b5ab13ad60, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fc032b7e074 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55b5ab13ad58) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55b5ab13acc0) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007fc032b7e4e9 in QSGRenderThread::run (this=0x55b5ab13acc0) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007fc030ef8623 in QThreadPrivate::start (arg=0x55b5ab13acc0) at thread/qthread_unix.cpp:331
#9  0x00007fc03088c609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fc030b75163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fc00e7b2700 (LWP 17124)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7fc00e7b1b50, clockid=<optimized out>, expected=0, futex_word=0x7fc00402f794) at ../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7fc00e7b1b50, clockid=<optimized out>, mutex=0x7fc00402f740, cond=0x7fc00402f768) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7fc00402f768, mutex=0x7fc00402f740, abstime=0x7fc00e7b1b50) at pthread_cond_wait.c:656
#3  0x00007fc030efe618 in QWaitConditionPrivate::wait_relative (this=0x7fc00402f740, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait (deadline=..., this=0x7fc00402f740) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait (this=this@entry=0x7fc004031ff0, mutex=mutex@entry=0x7fc00402f5d8, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007fc030efbb21 in QThreadPoolThread::run (this=0x7fc004031fe0) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:275
#7  0x00007fc030ef8623 in QThreadPrivate::start (arg=0x7fc004031fe0) at thread/qthread_unix.cpp:331
#8  0x00007fc03088c609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007fc030b75163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fc029296700 (LWP 10472)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b5a99d8b78) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55b5a99d8b28, cond=0x55b5a99d8b50) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55b5a99d8b50, mutex=0x55b5a99d8b28) at pthread_cond_wait.c:638
#3  0x00007fc0296835eb in cnd_wait (mtx=0x55b5a99d8b28, cond=0x55b5a99d8b50) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x55b5a99ce190) at ../src/util/u_queue.c:294
#5  0x00007fc0296831eb in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007fc03088c609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007fc030b75163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fc02ccb69c0 (LWP 10402)):
[KCrash Handler]
#3  0x00007fc0331e5caa in ?? () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#4  0x00007fc0331e1da6 in Plasma::Containment::applets() const () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#5  0x00007fc01a22fdd7 in SystemTray::onEnabledAppletsChanged (this=0x55b5bd9d67e0) at ./applets/systemtray/systemtray.cpp:287
#6  0x00007fc031115dfe in QtPrivate::QSlotObjectBase::call (a=0x7fff026772f0, r=0x55b5bd9d67e0, this=0x55b5b1a53c10) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#7  doActivate<false> (sender=0x55b5bd995c00, signal_index=4, argv=0x7fff026772f0) at kernel/qobject.cpp:3886
#8  0x00007fc03110f1c7 in QMetaObject::activate (sender=sender@entry=0x55b5bd995c00, m=m@entry=0x7fc01a2874c0 <SystemTraySettings::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fff026772f0) at kernel/qobject.cpp:3946
#9  0x00007fc01a230fae in SystemTraySettings::enabledPluginsChanged (this=this@entry=0x55b5bd995c00, _t1=..., _t2=...) at ./obj-x86_64-linux-gnu/applets/systemtray/systemtraymodel_static_autogen/EWIEGA46WW/moc_systemtraysettings.cpp:152
#10 0x00007fc01a255727 in SystemTraySettings::notifyAboutChangedEnabledPlugins (this=this@entry=0x55b5bd995c00, enabledPluginsOld=..., enabledPluginsNew=...) at ./applets/systemtray/systemtraysettings.cpp:163
#11 0x00007fc01a2558ef in SystemTraySettings::loadConfig (this=0x55b5bd995c00) at ./applets/systemtray/systemtraysettings.cpp:120
#12 SystemTraySettings::loadConfig (this=0x55b5bd995c00) at ./applets/systemtray/systemtraysettings.cpp:107
#13 0x00007fc031115dfe in QtPrivate::QSlotObjectBase::call (a=0x7fff02677490, r=0x55b5bd995c00, this=0x55b5bd998520) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#14 doActivate<false> (sender=0x55b5bd9c66a0, signal_index=3, argv=0x7fff02677490) at kernel/qobject.cpp:3886
#15 0x00007fc031c62f7e in KCoreConfigSkeleton::save() () from /lib/x86_64-linux-gnu/libKF5ConfigCore.so.5
#16 0x00007fc033128f68 in KDeclarative::ConfigPropertyMapPrivate::writeConfig (this=0x55b5a9ad4f20) at /usr/include/c++/9/bits/atomic_base.h:413
#17 KDeclarative::ConfigPropertyMapPrivate::writeConfig (this=0x55b5a9ad4f20) at ./src/kdeclarative/configpropertymap.cpp:125
#18 0x00007fc03312900d in KDeclarative::ConfigPropertyMap::~ConfigPropertyMap (this=0x55b5a9ad4f00, __in_chrg=<optimized out>) at ./src/kdeclarative/configpropertymap.cpp:65
#19 0x00007fc03312902d in KDeclarative::ConfigPropertyMap::~ConfigPropertyMap (this=0x55b5a9ad4f00, __in_chrg=<optimized out>) at ./src/kdeclarative/configpropertymap.cpp:62
#20 0x00007fc03110937e in QObjectPrivate::deleteChildren (this=0x55b5bd9e4900) at kernel/qobject.cpp:2104
#21 0x00007fc031113e26 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1082
#22 0x00007fc032bc87ca in QQuickItem::~QQuickItem (this=0x55b5bd997df0, __in_chrg=<optimized out>) at items/qquickitem.cpp:2380
#23 0x00007fc0334ed1c5 in PlasmaQuick::AppletQuickItem::~AppletQuickItem (this=0x55b5bd997df0, __in_chrg=<optimized out>) at ./src/plasmaquick/appletquickitem.cpp:516
#24 0x00007fc01bfe9827 in ContainmentInterface::~ContainmentInterface (this=0x55b5bd997df0, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qsharedpointer_impl.h:159
#25 ContainmentInterface::~ContainmentInterface (this=0x55b5bd997df0, __in_chrg=<optimized out>) at ./src/scriptengines/qml/plasmoid/containmentinterface.h:38
#26 0x00007fc03110937e in QObjectPrivate::deleteChildren (this=0x55b5bd9d3df0) at kernel/qobject.cpp:2104
#27 0x00007fc031113e26 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1082
#28 0x00007fc01bfd0af8 in DeclarativeAppletScript::~DeclarativeAppletScript (this=0x55b5bd9c1df0, __in_chrg=<optimized out>) at ./src/scriptengines/qml/plasmoid/declarativeappletscript.cpp:66
#29 DeclarativeAppletScript::~DeclarativeAppletScript (this=0x55b5bd9c1df0, __in_chrg=<optimized out>) at ./src/scriptengines/qml/plasmoid/declarativeappletscript.cpp:68
#30 0x00007fc0331f3088 in ?? () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#31 0x00007fc0331f328d in ?? () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#32 0x00007fc0331db09e in Plasma::Applet::~Applet() () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#33 0x00007fc01a22d25d in SystemTray::~SystemTray (this=0x55b5bd9d67e0, __in_chrg=<optimized out>) at ./applets/systemtray/systemtray.cpp:36
#34 0x00007fc03110937e in QObjectPrivate::deleteChildren (this=0x55b5bd9d4870) at kernel/qobject.cpp:2104
#35 0x00007fc031113e26 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1082
#36 0x00007fc02800cfcd in SystemTrayContainer::~SystemTrayContainer (this=0x55b5bd9d5ab0, __in_chrg=<optimized out>) at ./applets/systemtray/container/systemtraycontainer.cpp:21
#37 0x00007fc03110937e in QObjectPrivate::deleteChildren (this=0x55b5b26263b0) at kernel/qobject.cpp:2104
#38 0x00007fc031113e26 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1082
#39 0x00007fc0331e12bd in Plasma::Containment::~Containment() () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#40 0x00007fc03110c6f3 in QObject::event (this=0x55b5ab18eaf0, e=0x55b5bb36e070) at kernel/qobject.cpp:1301
#41 0x00007fc031dfcdc3 in QApplicationPrivate::notify_helper (this=this@entry=0x55b5a99648b0, receiver=receiver@entry=0x55b5ab18eaf0, e=e@entry=0x55b5bb36e070) at kernel/qapplication.cpp:3637
#42 0x00007fc031e05bd8 in QApplication::notify (this=0x7fff026780e0, receiver=0x55b5ab18eaf0, e=0x55b5bb36e070) at kernel/qapplication.cpp:3161
#43 0x00007fc0310ded7a in QCoreApplication::notifyInternal2 (receiver=0x55b5ab18eaf0, event=0x55b5bb36e070) at ../../include/QtCore/5.15.3/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:332
#44 0x00007fc0310e1681 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55b5a993def0) at kernel/qcoreapplication.cpp:1821
#45 0x00007fc031139fe7 in postEventSourceDispatch (s=0x55b5a997e7c0) at kernel/qeventdispatcher_glib.cpp:277
#46 0x00007fc02f40017d in g_main_dispatch (context=0x55b5a9980e30) at ../../../glib/gmain.c:3309
#47 g_main_context_dispatch (context=context@entry=0x55b5a9980e30) at ../../../glib/gmain.c:3974
#48 0x00007fc02f400400 in g_main_context_iterate (context=context@entry=0x55b5a9980e30, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4047
#49 0x00007fc02f4004a3 in g_main_context_iteration (context=0x55b5a9980e30, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#50 0x00007fc031139642 in QEventDispatcherGlib::processEvents (this=0x55b5a997e950, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#51 0x00007fc0310dd87b in QEventLoop::exec (this=this@entry=0x7fff02677fc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#52 0x00007fc0310e5a24 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#53 0x000055b5a86af175 in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:243

Possible duplicates by query: bug 451053, bug 450723, bug 450594, bug 450113, bug 449981.

Reported using DrKonqi