Application: plasmashell (5.22.80)

Qt Version: 5.15.3
Frameworks Version: 5.84.0
Operating System: Linux 5.8.0-59-generic x86_64
Windowing System: X11
Distribution: KDE neon Unstable Edition
DrKonqi: 5.22.80 [CoredumpBackend]

-- Information about the crash:
- What I was doing when the application crashed:
I can reproduce this crash on X11 and Wayland sessions.
right-click on any icon on desktop, hover over "Activities" submenu, Plasma crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Content of s_kcrashErrorMessage: [Current thread is 1 (Thread 0x7f3875269700 (LWP 16683))]
[New LWP 16683]
[New LWP 16487]
[New LWP 16534]
[New LWP 16488]
[New LWP 16536]
[New LWP 16489]
[New LWP 16490]
[New LWP 16545]
[New LWP 16514]
[New LWP 16546]
[New LWP 16535]
[New LWP 16547]
[New LWP 16541]
[New LWP 16554]
[New LWP 16538]
[New LWP 16537]
[New LWP 16408]
[New LWP 16469]
[New LWP 16386]
[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 0x7f3875269700 (LWP 16683))]

Thread 19 (Thread 0x7f38cba3d8c0 (LWP 16386)):
#0  0x00007f38cf768aff in __GI___poll (fds=0x55bd9f107cf0, nfds=21, timeout=16) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f38ce07a36e in g_main_context_poll (priority=<optimized out>, n_fds=21, fds=0x55bd9f107cf0, timeout=<optimized out>, context=0x7f38c4005000) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7f38c4005000, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f38ce07a4a3 in g_main_context_iteration (context=0x7f38c4005000, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f38cfd37fb2 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55bd996f6980, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007f38cfcdc25b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffcaa56b5f0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f38cfce4414 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x000055bd9871ee08 in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:254

Thread 18 (Thread 0x7f38ca26c700 (LWP 16469)):
#0  0x00007f38cf768aff in __GI___poll (fds=0x7f38bc014460, nfds=4, timeout=14993) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f38ce07a36e in g_main_context_poll (priority=<optimized out>, n_fds=4, fds=0x7f38bc014460, timeout=<optimized out>, context=0x7f38bc000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7f38bc000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f38ce07a4a3 in g_main_context_iteration (context=0x7f38bc000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f38cfd37fb2 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f38bc000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007f38cfcdc25b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f38ca26bcb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f38cfaf5c22 in QThread::exec() (this=this@entry=0x7f38d06edd80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f38d0669f4b in QDBusConnectionManager::run() (this=0x7f38d06edd80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179
#8  0x00007f38cfaf6dbc in QThreadPrivate::start(void*) (arg=0x7f38d06edd80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:329
#9  0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f38caee6700 (LWP 16408)):
#0  0x00007f38cf768aff in __GI___poll (fds=fds@entry=0x7f38caee5be8, nfds=nfds@entry=1, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f38d1e51c1a in poll (__timeout=-1, __nfds=1, __fds=0x7f38caee5be8) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x55bd99656f30, cond=cond@entry=0x55bd99656f70, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:480
#3  0x00007f38d1e5390a in xcb_wait_for_event (c=c@entry=0x55bd99656f30) at ../../src/xcb_in.c:697
#4  0x00007f38cb60be58 in QXcbEventQueue::run() (this=0x55bd996498f0) at qxcbeventqueue.cpp:228
#5  0x00007f38cfaf6dbc in QThreadPrivate::start(void*) (arg=0x55bd996498f0) at thread/qthread_unix.cpp:329
#6  0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f38a4a75700 (LWP 16537)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f38a4a74c50, clockid=<optimized out>, expected=0, futex_word=0x7f38a00358b4) at ../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7f38a4a74c50, clockid=<optimized out>, mutex=0x7f38a0035860, cond=0x7f38a0035888) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7f38a0035888, mutex=0x7f38a0035860, abstime=0x7f38a4a74c50) at pthread_cond_wait.c:665
#3  0x00007f38cfafceb8 in QWaitConditionPrivate::wait_relative(QDeadlineTimer) (this=0x7f38a0035860, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x7f38a0035860) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x7f38a000db30, mutex=mutex@entry=0x55bd9b413378, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007f38cfafa3c1 in QThreadPoolThread::run() (this=0x7f38a000db20) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:275
#7  0x00007f38cfaf6dbc in QThreadPrivate::start(void*) (arg=0x7f38a000db20) at thread/qthread_unix.cpp:329
#8  0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f389ffff700 (LWP 16538)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f389fffec50, clockid=<optimized out>, expected=0, futex_word=0x7f38a000ce54) at ../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7f389fffec50, clockid=<optimized out>, mutex=0x7f38a000ce00, cond=0x7f38a000ce28) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7f38a000ce28, mutex=0x7f38a000ce00, abstime=0x7f389fffec50) at pthread_cond_wait.c:665
#3  0x00007f38cfafceb8 in QWaitConditionPrivate::wait_relative(QDeadlineTimer) (this=0x7f38a000ce00, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x7f38a000ce00) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x7f38a002ecb0, mutex=mutex@entry=0x55bd9b413378, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007f38cfafa3c1 in QThreadPoolThread::run() (this=0x7f38a002eca0) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:275
#7  0x00007f38cfaf6dbc in QThreadPrivate::start(void*) (arg=0x7f38a002eca0) at thread/qthread_unix.cpp:329
#8  0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f38775ef700 (LWP 16554)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f38c4007784) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f38c4007730, cond=0x7f38c4007758) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f38c4007758, mutex=0x7f38c4007730) at pthread_cond_wait.c:647
#3  0x00007f38cfafcf2b in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x7f38c4007730) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x55bd9d2da0f8, mutex=mutex@entry=0x55bd9d2da0f0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f38d174bb44 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x55bd9d2da0e8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x55bd9d2da050) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f38d174bfb9 in QSGRenderThread::run() (this=0x55bd9d2da050) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f38cfaf6dbc in QThreadPrivate::start(void*) (arg=0x55bd9d2da050) at thread/qthread_unix.cpp:329
#9  0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f389f7fe700 (LWP 16541)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bd998e8ea0) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bd998e8e50, cond=0x55bd998e8e78) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bd998e8e78, mutex=0x55bd998e8e50) at pthread_cond_wait.c:647
#3  0x00007f38cfafcf2b in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x55bd998e8e50) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x7f38bc00e5e8, mutex=mutex@entry=0x7f38bc00e5e0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f38d174bb44 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x7f38bc00e5d8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x7f38bc00e540) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f38d174bfb9 in QSGRenderThread::run() (this=0x7f38bc00e540) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f38cfaf6dbc in QThreadPrivate::start(void*) (arg=0x7f38bc00e540) at thread/qthread_unix.cpp:329
#9  0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f387dc07700 (LWP 16547)):
#0  0x00007f38cf768aff in __GI___poll (fds=0x7f3870005d20, nfds=1, timeout=3499220) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f38ce07a36e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f3870005d20, timeout=<optimized out>, context=0x7f3870000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7f3870000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f38ce07a4a3 in g_main_context_iteration (context=0x7f3870000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f38cfd37fb2 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3870000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007f38cfcdc25b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f387dc06ca0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f38cfaf5c22 in QThread::exec() (this=this@entry=0x55bd9aca47b0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f387e0fe07c in KCupsConnection::run() (this=0x55bd9aca47b0) at ./libkcups/KCupsConnection.cpp:289
#8  0x00007f38cfaf6dbc in QThreadPrivate::start(void*) (arg=0x55bd9aca47b0) at thread/qthread_unix.cpp:329
#9  0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f38a5a77700 (LWP 16535)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f38a5a76c50, clockid=<optimized out>, expected=0, futex_word=0x7f38a0007410) at ../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7f38a5a76c50, clockid=<optimized out>, mutex=0x7f38a00073c0, cond=0x7f38a00073e8) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7f38a00073e8, mutex=0x7f38a00073c0, abstime=0x7f38a5a76c50) at pthread_cond_wait.c:665
#3  0x00007f38cfafceb8 in QWaitConditionPrivate::wait_relative(QDeadlineTimer) (this=0x7f38a00073c0, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x7f38a00073c0) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x7f38a0004730, mutex=mutex@entry=0x55bd9b413378, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007f38cfafa3c1 in QThreadPoolThread::run() (this=0x7f38a0004720) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:275
#7  0x00007f38cfaf6dbc in QThreadPrivate::start(void*) (arg=0x7f38a0004720) at thread/qthread_unix.cpp:329
#8  0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f387ffff700 (LWP 16546)):
#0  0x00007f38cf768aff in __GI___poll (fds=0x7f3878005240, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f38ce07a36e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f3878005240, timeout=<optimized out>, context=0x7f3878000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7f3878000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f38ce07a4a3 in g_main_context_iteration (context=0x7f3878000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f38cfd37fb2 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3878000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007f38cfcdc25b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f387fffece0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f38cfaf5c22 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f38cfaf6dbc in QThreadPrivate::start(void*) (arg=0x55bd9afc6ea0) at thread/qthread_unix.cpp:329
#8  0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f38c15eb700 (LWP 16514)):
#0  0x00007f38cf768aff in __GI___poll (fds=0x7f38ac004a60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f38ce07a36e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f38ac004a60, timeout=<optimized out>, context=0x7f38ac000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7f38ac000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f38ce07a4a3 in g_main_context_iteration (context=0x7f38ac000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f38cfd37fb2 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f38ac000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007f38cfcdc25b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f38c15eacc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f38cfaf5c22 in QThread::exec() (this=this@entry=0x55bd99acf100) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f38d12fd559 in QQmlThreadPrivate::run() (this=0x55bd99acf100) at qml/ftw/qqmlthread.cpp:155
#8  0x00007f38cfaf6dbc in QThreadPrivate::start(void*) (arg=0x55bd99acf100) at thread/qthread_unix.cpp:329
#9  0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f389c992700 (LWP 16545)):
#0  0x00007f38cf768aff in __GI___poll (fds=0x7f3880004c50, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f38ce07a36e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f3880004c50, timeout=<optimized out>, context=0x7f3880000c20) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7f3880000c20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f38ce07a4a3 in g_main_context_iteration (context=0x7f3880000c20, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f38cfd37fb2 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3880000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007f38cfcdc25b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f389c991cc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f38cfaf5c22 in QThread::exec() (this=this@entry=0x55bd9afb64b0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f389cdc4669 in QQuickXmlQueryEngine::run() (this=0x55bd9afb64b0) at qqmlxmllistmodel.cpp:325
#8  0x00007f38cfaf6dbc in QThreadPrivate::start(void*) (arg=0x55bd9afb64b0) at thread/qthread_unix.cpp:329
#9  0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f38c27fc700 (LWP 16490)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bd99632718) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bd996326c8, cond=0x55bd996326f0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bd996326f0, mutex=0x55bd996326c8) at pthread_cond_wait.c:647
#3  0x00007f38c8e2be6b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f38c8e2ba6b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f38c2ffd700 (LWP 16489)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bd99632718) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bd996326c8, cond=0x55bd996326f0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bd996326f0, mutex=0x55bd996326c8) at pthread_cond_wait.c:647
#3  0x00007f38c8e2be6b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f38c8e2ba6b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f38a5276700 (LWP 16536)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f38a5275c50, clockid=<optimized out>, expected=0, futex_word=0x7f38a0033464) at ../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7f38a5275c50, clockid=<optimized out>, mutex=0x7f38a0033410, cond=0x7f38a0033438) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7f38a0033438, mutex=0x7f38a0033410, abstime=0x7f38a5275c50) at pthread_cond_wait.c:665
#3  0x00007f38cfafceb8 in QWaitConditionPrivate::wait_relative(QDeadlineTimer) (this=0x7f38a0033410, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x7f38a0033410) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x7f38a0002410, mutex=mutex@entry=0x55bd9b413378, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007f38cfafa3c1 in QThreadPoolThread::run() (this=0x7f38a0002400) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:275
#7  0x00007f38cfaf6dbc in QThreadPrivate::start(void*) (arg=0x7f38a0002400) at thread/qthread_unix.cpp:329
#8  0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f38c37fe700 (LWP 16488)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bd99632718) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bd996326c8, cond=0x55bd996326f0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bd996326f0, mutex=0x55bd996326c8) at pthread_cond_wait.c:647
#3  0x00007f38c8e2be6b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f38c8e2ba6b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f38a65d5700 (LWP 16534)):
#0  0x00007f38cf768aff in __GI___poll (fds=0x7f38a000f580, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f38ce07a36e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f38a000f580, timeout=<optimized out>, context=0x7f38a002cc70) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7f38a002cc70, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f38ce07a4a3 in g_main_context_iteration (context=0x7f38a002cc70, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f38cfd37fb2 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f38a0007220, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007f38cfcdc25b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f38a65d4ca0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f38cfaf5c22 in QThread::exec() (this=this@entry=0x55bd9a46f6e0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f38d16863ba in QQuickPixmapReader::run() (this=0x55bd9a46f6e0) at util/qquickpixmapcache.cpp:1024
#8  0x00007f38cfaf6dbc in QThreadPrivate::start(void*) (arg=0x55bd9a46f6e0) at thread/qthread_unix.cpp:329
#9  0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f38c3fff700 (LWP 16487)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55bd99632718) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55bd996326c8, cond=0x55bd996326f0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55bd996326f0, mutex=0x55bd996326c8) at pthread_cond_wait.c:647
#3  0x00007f38c8e2be6b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f38c8e2ba6b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f3875269700 (LWP 16683)):
[KCrash Handler]
#3  std::__atomic_base<int>::load(std::memory_order) const (__m=std::memory_order_relaxed, this=<optimized out>) at /usr/include/c++/9/bits/atomic_base.h:413
#4  QAtomicOps<int>::loadRelaxed<int>(std::atomic<int> const&) (_q_value=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qatomic_cxx11.h:239
#5  QBasicAtomicInteger<int>::loadRelaxed() const (this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qbasicatomic.h:107
#6  QtPrivate::RefCount::ref() (this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qrefcount.h:55
#7  QString::QString(QString const&) (other=..., this=0x7f3875268cc0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:1094
#8  QStringBuilder<QString, QString>::operator QString() const (this=<synthetic pointer>, this=<synthetic pointer>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qstringbuilder.h:147
#9  FileItemLinkingPluginActionLoader::run() (this=0x55bd9ec73db0) at ./activities/fileitemplugin/FileItemLinkingPluginActionLoader.cpp:77
#10 0x00007f38cfaf6dbc in QThreadPrivate::start(void*) (arg=0x55bd9ec73db0) at thread/qthread_unix.cpp:329
#11 0x00007f38ceaac609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f38cf775293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Possible duplicates by query: bug 432867, bug 431375, bug 431334, bug 428082, bug 427776.

Reported using DrKonqi