Application: plasmashell (5.17.4)

Qt Version: 5.12.5
Frameworks Version: 5.64.0
Operating System: Linux 5.4.7-200.fc31.x86_64 x86_64
Distribution: Fedora 31 (KDE Plasma)

-- Information about the crash:
- What I was doing when the application crashed:
Add lots of applets (~30-40 pcs) to workspace and starts to delete them. When I tried to delete one. Plasma crashed and restarted succesfuly.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f93034bec80 (LWP 992))]

Thread 37 (Thread 0x7f92867fc700 (LWP 2477)):
#0  0x00007f930673e07a in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f928f658e3a in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f928f6597f7 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /lib64/libQt5WebEngineCore.so.5
#3  0x00007f928f6598f1 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () from /lib64/libQt5WebEngineCore.so.5
#4  0x00007f928f61a022 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /lib64/libQt5WebEngineCore.so.5
#5  0x00007f928f61ce48 in base::internal::SchedulerWorker::RunWorker() () from /lib64/libQt5WebEngineCore.so.5
#6  0x00007f928f61d0f4 in base::internal::SchedulerWorker::RunPooledWorker() () from /lib64/libQt5WebEngineCore.so.5
#7  0x00007f928f65bd6f in base::(anonymous namespace)::ThreadFunc(void*) () from /lib64/libQt5WebEngineCore.so.5
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 36 (Thread 0x7f9269688700 (LWP 2102)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9307279003 in QWaitConditionPrivate::wait (deadline=..., this=0x55c23cdb5600) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x7f92f003a940, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f9307279091 in QWaitCondition::wait (this=this@entry=0x7f92f003a948, mutex=mutex@entry=0x7f92f003a940, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007f9308eb51b9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x7f92f003a938) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x7f92f003a8c0) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007f9308eb545d in QSGRenderThread::run (this=0x7f92f003a8c0) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x7f92f003a8c0) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 35 (Thread 0x7f9269e89700 (LWP 2101)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9307279003 in QWaitConditionPrivate::wait (deadline=..., this=0x55c244b34eb0) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x7f92f0020600, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f9307279091 in QWaitCondition::wait (this=this@entry=0x7f92f0020608, mutex=mutex@entry=0x7f92f0020600, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007f9308eb51b9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x7f92f00205f8) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x7f92f0020580) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007f9308eb545d in QSGRenderThread::run (this=0x7f92f0020580) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x7f92f0020580) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 34 (Thread 0x7f926a68a700 (LWP 2100)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9307279003 in QWaitConditionPrivate::wait (deadline=..., this=0x55c244c32fc0) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x55c243042690, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f9307279091 in QWaitCondition::wait (this=this@entry=0x55c243042698, mutex=mutex@entry=0x55c243042690, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007f9308eb51b9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55c243042688) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55c243042610) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007f9308eb545d in QSGRenderThread::run (this=0x55c243042610) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x55c243042610) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 33 (Thread 0x7f926bb8a700 (LWP 2099)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9307279003 in QWaitConditionPrivate::wait (deadline=..., this=0x55c245618680) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x55c2422d15e0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f9307279091 in QWaitCondition::wait (this=this@entry=0x55c2422d15e8, mutex=mutex@entry=0x55c2422d15e0, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007f9308eb51b9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55c2422d15d8) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55c2422d1560) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007f9308eb545d in QSGRenderThread::run (this=0x55c2422d1560) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x55c2422d1560) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 32 (Thread 0x7f926c38b700 (LWP 2098)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9307279003 in QWaitConditionPrivate::wait (deadline=..., this=0x55c2424cfe30) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x7f92f0017ff0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f9307279091 in QWaitCondition::wait (this=this@entry=0x7f92f0017ff8, mutex=mutex@entry=0x7f92f0017ff0, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007f9308eb51b9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x7f92f0017fe8) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x7f92f0017f70) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007f9308eb545d in QSGRenderThread::run (this=0x7f92f0017f70) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x7f92f0017f70) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 31 (Thread 0x7f926d8de700 (LWP 2097)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9307279003 in QWaitConditionPrivate::wait (deadline=..., this=0x55c240a74620) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x7f92f003e2a0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f9307279091 in QWaitCondition::wait (this=this@entry=0x7f92f003e2a8, mutex=mutex@entry=0x7f92f003e2a0, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007f9308eb51b9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x7f92f003e298) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x7f92f003e220) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007f9308eb545d in QSGRenderThread::run (this=0x7f92f003e220) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x7f92f003e220) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 30 (Thread 0x7f92702d6700 (LWP 2096)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9307279003 in QWaitConditionPrivate::wait (deadline=..., this=0x55c24451c390) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x7f92f0010870, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f9307279091 in QWaitCondition::wait (this=this@entry=0x7f92f0010878, mutex=mutex@entry=0x7f92f0010870, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007f9308eb51b9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x7f92f0010868) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x7f92f00107f0) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007f9308eb545d in QSGRenderThread::run (this=0x7f92f00107f0) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x7f92f00107f0) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 29 (Thread 0x7f92675cb700 (LWP 2095)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9307279003 in QWaitConditionPrivate::wait (deadline=..., this=0x55c244193b40) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x55c243850c80, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f9307279091 in QWaitCondition::wait (this=this@entry=0x55c243850c88, mutex=mutex@entry=0x55c243850c80, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007f9308eb51b9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55c243850c78) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55c243850c00) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007f9308eb545d in QSGRenderThread::run (this=0x55c243850c00) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x55c243850c00) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 28 (Thread 0x7f926e0df700 (LWP 2094)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9307279003 in QWaitConditionPrivate::wait (deadline=..., this=0x55c2417a6ee0) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x55c2417a80c0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f9307279091 in QWaitCondition::wait (this=this@entry=0x55c2417a80c8, mutex=mutex@entry=0x55c2417a80c0, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007f9308eb51b9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55c2417a80b8) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55c2417a8040) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007f9308eb545d in QSGRenderThread::run (this=0x55c2417a8040) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x55c2417a8040) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 27 (Thread 0x7f926f11e700 (LWP 2093)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9307279003 in QWaitConditionPrivate::wait (deadline=..., this=0x55c24245d370) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x55c24186bb40, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f9307279091 in QWaitCondition::wait (this=this@entry=0x55c24186bb48, mutex=mutex@entry=0x55c24186bb40, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007f9308eb51b9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55c24186bb38) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55c24186bac0) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007f9308eb545d in QSGRenderThread::run (this=0x55c24186bac0) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x55c24186bac0) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 26 (Thread 0x7f9266d11700 (LWP 2086)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9307279003 in QWaitConditionPrivate::wait (deadline=..., this=0x55c240d37cf0) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x7f92f0024aa0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f9307279091 in QWaitCondition::wait (this=this@entry=0x7f92f0024aa8, mutex=mutex@entry=0x7f92f0024aa0, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007f9308eb51b9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x7f92f0024a98) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x7f92f0024a20) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007f9308eb545d in QSGRenderThread::run (this=0x7f92f0024a20) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x7f92f0024a20) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 25 (Thread 0x7f926f91f700 (LWP 2027)):
#0  0x00007f9305a2f997 in g_source_iter_next () from /lib64/libglib-2.0.so.0
#1  0x00007f9305a3116f in g_main_context_check () from /lib64/libglib-2.0.so.0
#2  0x00007f9305a317b2 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f9305a31943 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f930746fda3 in QEventDispatcherGlib::processEvents (this=0x7f92f00116d0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f9307419cfb in QEventLoop::exec (this=this@entry=0x7f926f91eda0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007f93072723a5 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x55c241c6eb00) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 24 (Thread 0x7f9271ff3700 (LWP 1952)):
#0  0x00007f9306e77dfb in __lll_lock_wait_private () from /lib64/libc.so.6
#1  0x00007f9306e5f7ce in buffered_vfprintf () from /lib64/libc.so.6
#2  0x00007f9306e5c654 in __vfprintf_internal () from /lib64/libc.so.6
#3  0x00007f9306f00be3 in __fprintf_chk () from /lib64/libc.so.6
#4  0x00007f92a106e916 in event_logv_ () from /lib64/libevent-2.1.so.6
#5  0x00007f92a106eae9 in event_warn () from /lib64/libevent-2.1.so.6
#6  0x00007f92a1070548 in epoll_dispatch () from /lib64/libevent-2.1.so.6
#7  0x00007f92a10660b5 in event_base_loop () from /lib64/libevent-2.1.so.6
#8  0x00007f928f65f448 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /lib64/libQt5WebEngineCore.so.5
#9  0x00007f928f5f881f in base::RunLoop::Run() () from /lib64/libQt5WebEngineCore.so.5
#10 0x00007f928f62ae7e in base::Thread::ThreadMain() () from /lib64/libQt5WebEngineCore.so.5
#11 0x00007f928f65bd6f in base::(anonymous namespace)::ThreadFunc(void*) () from /lib64/libQt5WebEngineCore.so.5
#12 0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#13 0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 23 (Thread 0x7f92727f4700 (LWP 1941)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f928f658d6a in base::ConditionVariable::Wait() () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f928f659808 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /lib64/libQt5WebEngineCore.so.5
#3  0x00007f928f6598af in base::WaitableEvent::Wait() () from /lib64/libQt5WebEngineCore.so.5
#4  0x00007f928f61a038 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /lib64/libQt5WebEngineCore.so.5
#5  0x00007f928f61ce48 in base::internal::SchedulerWorker::RunWorker() () from /lib64/libQt5WebEngineCore.so.5
#6  0x00007f928f61d174 in base::internal::SchedulerWorker::RunDedicatedWorker() () from /lib64/libQt5WebEngineCore.so.5
#7  0x00007f928f65bd6f in base::(anonymous namespace)::ThreadFunc(void*) () from /lib64/libQt5WebEngineCore.so.5
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 22 (Thread 0x7f927eff5700 (LWP 1940)):
#0  0x00007f9306ee344c in read () from /lib64/libc.so.6
#1  0x00007f92cd8d9365 in pa_read () from /usr/lib64/pulseaudio/libpulsecommon-13.0.so
#2  0x00007f92cd9633d6 in pa_mainloop_prepare () from /lib64/libpulse.so.0
#3  0x00007f92cd963e74 in pa_mainloop_iterate () from /lib64/libpulse.so.0
#4  0x00007f92cd963f30 in pa_mainloop_run () from /lib64/libpulse.so.0
#5  0x00007f92cd9720dd in thread () from /lib64/libpulse.so.0
#6  0x00007f92cd907b9c in internal_thread_func () from /usr/lib64/pulseaudio/libpulsecommon-13.0.so
#7  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 21 (Thread 0x7f92837f6700 (LWP 1939)):
#0  0x00007f930673e07a in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f928f658e3a in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f928f6597f7 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /lib64/libQt5WebEngineCore.so.5
#3  0x00007f928f5d6798 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () from /lib64/libQt5WebEngineCore.so.5
#4  0x00007f928f5f881f in base::RunLoop::Run() () from /lib64/libQt5WebEngineCore.so.5
#5  0x00007f928f62ae7e in base::Thread::ThreadMain() () from /lib64/libQt5WebEngineCore.so.5
#6  0x00007f928f65bd6f in base::(anonymous namespace)::ThreadFunc(void*) () from /lib64/libQt5WebEngineCore.so.5
#7  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 20 (Thread 0x7f9283ff7700 (LWP 1938)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f928f658d6a in base::ConditionVariable::Wait() () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f928fed0568 in cc::SingleThreadTaskGraphRunner::Run() () from /lib64/libQt5WebEngineCore.so.5
#3  0x00007f928f62c39d in base::SimpleThread::ThreadMain() () from /lib64/libQt5WebEngineCore.so.5
#4  0x00007f928f65bd6f in base::(anonymous namespace)::ThreadFunc(void*) () from /lib64/libQt5WebEngineCore.so.5
#5  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 19 (Thread 0x7f92847f8700 (LWP 1937)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f928f658d6a in base::ConditionVariable::Wait() () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f928f659808 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /lib64/libQt5WebEngineCore.so.5
#3  0x00007f928f6598af in base::WaitableEvent::Wait() () from /lib64/libQt5WebEngineCore.so.5
#4  0x00007f928f61a038 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /lib64/libQt5WebEngineCore.so.5
#5  0x00007f928f61ce48 in base::internal::SchedulerWorker::RunWorker() () from /lib64/libQt5WebEngineCore.so.5
#6  0x00007f928f61d134 in base::internal::SchedulerWorker::RunSharedWorker() () from /lib64/libQt5WebEngineCore.so.5
#7  0x00007f928f65bd6f in base::(anonymous namespace)::ThreadFunc(void*) () from /lib64/libQt5WebEngineCore.so.5
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 18 (Thread 0x7f9284ff9700 (LWP 1936)):
#0  0x00007ffef6571933 in clock_gettime ()
#1  0x00007f9306eb96ab in clock_gettime@GLIBC_2.2.5 () from /lib64/libc.so.6
#2  0x00007f928f65f811 in (anonymous namespace)::ClockNow(int) () from /lib64/libQt5WebEngineCore.so.5
#3  0x00007f928f661b1e in base::subtle::TimeTicksNowIgnoringOverride() () from /lib64/libQt5WebEngineCore.so.5
#4  0x00007f928f5d8cc5 in base::MessageLoop::DoDelayedWork(base::TimeTicks*) () from /lib64/libQt5WebEngineCore.so.5
#5  0x00007f928f65f464 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /lib64/libQt5WebEngineCore.so.5
#6  0x00007f928f5f881f in base::RunLoop::Run() () from /lib64/libQt5WebEngineCore.so.5
#7  0x00007f928ef9b944 in content::BrowserProcessSubThread::IOThreadRun(base::RunLoop*) () from /lib64/libQt5WebEngineCore.so.5
#8  0x00007f928f62afd8 in base::Thread::ThreadMain() () from /lib64/libQt5WebEngineCore.so.5
#9  0x00007f928f65bd6f in base::(anonymous namespace)::ThreadFunc(void*) () from /lib64/libQt5WebEngineCore.so.5
#10 0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 17 (Thread 0x7f9286ffd700 (LWP 1932)):
#0  0x00007f930673e07a in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f928f658e3a in base::ConditionVariable::TimedWait(base::TimeDelta const&) () from /lib64/libQt5WebEngineCore.so.5
#2  0x00007f928f6597f7 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks const&) () from /lib64/libQt5WebEngineCore.so.5
#3  0x00007f928f6598f1 in base::WaitableEvent::TimedWait(base::TimeDelta const&) () from /lib64/libQt5WebEngineCore.so.5
#4  0x00007f928f61a022 in base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) () from /lib64/libQt5WebEngineCore.so.5
#5  0x00007f928f61ce48 in base::internal::SchedulerWorker::RunWorker() () from /lib64/libQt5WebEngineCore.so.5
#6  0x00007f928f61d0f4 in base::internal::SchedulerWorker::RunPooledWorker() () from /lib64/libQt5WebEngineCore.so.5
#7  0x00007f928f65bd6f in base::(anonymous namespace)::ThreadFunc(void*) () from /lib64/libQt5WebEngineCore.so.5
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x7f92877fe700 (LWP 1931)):
#0  0x00007f9306e2773b in __dcigettext () from /lib64/libc.so.6
#1  0x00007f9306e810e2 in strerror_r () from /lib64/libc.so.6
#2  0x00007f9306e81003 in strerror () from /lib64/libc.so.6
#3  0x00007f92a106ead6 in event_warn () from /lib64/libevent-2.1.so.6
#4  0x00007f92a1070548 in epoll_dispatch () from /lib64/libevent-2.1.so.6
#5  0x00007f92a10660b5 in event_base_loop () from /lib64/libevent-2.1.so.6
#6  0x00007f928f65f584 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /lib64/libQt5WebEngineCore.so.5
#7  0x00007f928f5f881f in base::RunLoop::Run() () from /lib64/libQt5WebEngineCore.so.5
#8  0x00007f928f620394 in base::internal::ServiceThread::Run(base::RunLoop*) () from /lib64/libQt5WebEngineCore.so.5
#9  0x00007f928f62afd8 in base::Thread::ThreadMain() () from /lib64/libQt5WebEngineCore.so.5
#10 0x00007f928f65bd6f in base::(anonymous namespace)::ThreadFunc(void*) () from /lib64/libQt5WebEngineCore.so.5
#11 0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#12 0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7f928ca2b700 (LWP 1929)):
#0  0x00007f9306ee34ef in write () from /lib64/libc.so.6
#1  0x00007f9306e734cd in _IO_file_write@@GLIBC_2.2.5 () from /lib64/libc.so.6
#2  0x00007f9306e72826 in new_do_write () from /lib64/libc.so.6
#3  0x00007f9306e73bfe in __GI__IO_file_xsputn () from /lib64/libc.so.6
#4  0x00007f9306e5f6b1 in buffered_vfprintf () from /lib64/libc.so.6
#5  0x00007f9306e5c654 in __vfprintf_internal () from /lib64/libc.so.6
#6  0x00007f9306f00be3 in __fprintf_chk () from /lib64/libc.so.6
#7  0x00007f92a106e916 in event_logv_ () from /lib64/libevent-2.1.so.6
#8  0x00007f92a106eae9 in event_warn () from /lib64/libevent-2.1.so.6
#9  0x00007f92a1070548 in epoll_dispatch () from /lib64/libevent-2.1.so.6
#10 0x00007f92a10660b5 in event_base_loop () from /lib64/libevent-2.1.so.6
#11 0x00007f928f65f448 in base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () from /lib64/libQt5WebEngineCore.so.5
#12 0x00007f928f5f881f in base::RunLoop::Run() () from /lib64/libQt5WebEngineCore.so.5
#13 0x00007f928f62ae7e in base::Thread::ThreadMain() () from /lib64/libQt5WebEngineCore.so.5
#14 0x00007f928f65bd6f in base::(anonymous namespace)::ThreadFunc(void*) () from /lib64/libQt5WebEngineCore.so.5
#15 0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#16 0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7f92a1f2c700 (LWP 1922)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9307279003 in QWaitConditionPrivate::wait (deadline=..., this=0x55c2405d6b60) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x7f92f0016e30, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f9307279091 in QWaitCondition::wait (this=this@entry=0x7f92f0016e38, mutex=mutex@entry=0x7f92f0016e30, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007f9308eb51b9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x7f92f0016e28) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x7f92f0016db0) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007f9308eb545d in QSGRenderThread::run (this=0x7f92f0016db0) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x7f92f0016db0) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7f92c0f5d700 (LWP 1878)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9307279003 in QWaitConditionPrivate::wait (deadline=..., this=0x55c2400c8bf0) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x55c2400c6580, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f9307279091 in QWaitCondition::wait (this=this@entry=0x55c2400c6588, mutex=mutex@entry=0x55c2400c6580, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007f9308eb51b9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55c2400c6578) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55c2400c6500) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007f9308eb545d in QSGRenderThread::run (this=0x55c2400c6500) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x55c2400c6500) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7f92c35d2700 (LWP 1801)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9307279003 in QWaitConditionPrivate::wait (deadline=..., this=0x55c23f9222d0) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x55c23f91ec60, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f9307279091 in QWaitCondition::wait (this=this@entry=0x55c23f91ec68, mutex=mutex@entry=0x55c23f91ec60, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007f9308eb51b9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55c23f91ec58) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55c23f91ebe0) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007f9308eb545d in QSGRenderThread::run (this=0x55c23f91ebe0) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x55c23f91ebe0) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7f92a3fff700 (LWP 1421)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9307279003 in QWaitConditionPrivate::wait (deadline=..., this=0x55c23f5b0450) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x55c23fa1bd30, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f9307279091 in QWaitCondition::wait (this=this@entry=0x55c23fa1bd38, mutex=mutex@entry=0x55c23fa1bd30, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007f9308eb51b9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55c23fa1bd28) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55c23fa1bcb0) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007f9308eb545d in QSGRenderThread::run (this=0x55c23fa1bcb0) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x55c23fa1bcb0) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7f92c2cba700 (LWP 1377)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9307279003 in QWaitConditionPrivate::wait (deadline=..., this=0x55c23e465990) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x55c23e465970, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f9307279091 in QWaitCondition::wait (this=this@entry=0x55c23e465978, mutex=mutex@entry=0x55c23e465970, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007f9308eb51b9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55c23e465968) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55c23e4658f0) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007f9308eb545d in QSGRenderThread::run (this=0x55c23e4658f0) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x55c23e4658f0) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7f92cc989700 (LWP 1348)):
#0  0x00007ffef6571933 in clock_gettime ()
#1  0x00007f9306eb96ab in clock_gettime@GLIBC_2.2.5 () from /lib64/libc.so.6
#2  0x00007f930746f595 in qt_clock_gettime (ts=0x7f92cc988b30, clock=1) at kernel/qelapsedtimer_unix.cpp:175
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at kernel/qelapsedtimer_unix.cpp:166
#4  qt_gettime () at kernel/qelapsedtimer_unix.cpp:175
#5  0x00007f930746e0dd in QTimerInfoList::updateCurrentTime (this=0x7f92bc004910) at kernel/qtimerinfo_unix.cpp:91
#6  0x00007f930746f97f in timerSourceCheckHelper (src=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qlist.h:543
#7  0x00007f9305a31269 in g_main_context_check () from /lib64/libglib-2.0.so.0
#8  0x00007f9305a317b2 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#9  0x00007f9305a31943 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#10 0x00007f930746fda3 in QEventDispatcherGlib::processEvents (this=0x7f92bc000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0x00007f9307419cfb in QEventLoop::exec (this=this@entry=0x7f92cc988d60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#12 0x00007f93072723a5 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#13 0x00007f92cd197c4c in KCupsConnection::run() () from /lib64/libkcupslib.so
#14 0x00007f93072734f6 in QThreadPrivate::start (arg=0x55c23de06850) at thread/qthread_unix.cpp:361
#15 0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#16 0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f92cffff700 (LWP 1285)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9307279003 in QWaitConditionPrivate::wait (deadline=..., this=0x55c23d382020) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x55c23d2975d0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f9307279091 in QWaitCondition::wait (this=this@entry=0x55c23d2975d8, mutex=mutex@entry=0x55c23d2975d0, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007f9308eb51b9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55c23d2975c8) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55c23d297550) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007f9308eb545d in QSGRenderThread::run (this=0x55c23d297550) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x55c23d297550) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f92dd272700 (LWP 1279)):
#0  0x00007f9306ee7a6f in poll () from /lib64/libc.so.6
#1  0x00007f9305a3180e in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f9305a31943 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f930746fda3 in QEventDispatcherGlib::processEvents (this=0x7f92d4000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f9307419cfb in QEventLoop::exec (this=this@entry=0x7f92dd271d60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007f93072723a5 in QThread::exec (this=this@entry=0x55c23d356610) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007f9308e28e8a in QQuickPixmapReader::run (this=0x55c23d356610) at util/qquickpixmapcache.cpp:953
#7  0x00007f93072734f6 in QThreadPrivate::start (arg=0x55c23d356610) at thread/qthread_unix.cpp:361
#8  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f92df291700 (LWP 1222)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f92ecfaa313 in thread_function () from /usr/lib64/dri/swrast_dri.so
#2  0x00007f92ecfaa17b in impl_thrd_routine () from /usr/lib64/dri/swrast_dri.so
#3  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f92ece24700 (LWP 1221)):
#0  0x00007f930673dd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f92ecfaa313 in thread_function () from /usr/lib64/dri/swrast_dri.so
#2  0x00007f92ecfaa17b in impl_thrd_routine () from /usr/lib64/dri/swrast_dri.so
#3  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f92effff700 (LWP 1208)):
#0  0x00007f9305a2e379 in g_source_unref_internal () from /lib64/libglib-2.0.so.0
#1  0x00007f9305a2fa24 in g_source_iter_next () from /lib64/libglib-2.0.so.0
#2  0x00007f9305a3116f in g_main_context_check () from /lib64/libglib-2.0.so.0
#3  0x00007f9305a317b2 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#4  0x00007f9305a31943 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x00007f930746fda3 in QEventDispatcherGlib::processEvents (this=0x7f92e4000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f9307419cfb in QEventLoop::exec (this=this@entry=0x7f92efffed80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#7  0x00007f93072723a5 in QThread::exec (this=this@entry=0x55c23cdfefb0) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#8  0x00007f9308b3f119 in QQmlThreadPrivate::run (this=0x55c23cdfefb0) at qml/ftw/qqmlthread.cpp:148
#9  0x00007f93072734f6 in QThreadPrivate::start (arg=0x55c23cdfefb0) at thread/qthread_unix.cpp:361
#10 0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f92f5561700 (LWP 1016)):
#0  0x00007f9306ee344c in read () from /lib64/libc.so.6
#1  0x00007f9305a7953f in g_wakeup_acknowledge () from /lib64/libglib-2.0.so.0
#2  0x00007f9305a31357 in g_main_context_check () from /lib64/libglib-2.0.so.0
#3  0x00007f9305a317b2 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#4  0x00007f9305a31943 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x00007f930746fda3 in QEventDispatcherGlib::processEvents (this=0x7f92e8000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f9307419cfb in QEventLoop::exec (this=this@entry=0x7f92f5560d70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#7  0x00007f93072723a5 in QThread::exec (this=this@entry=0x7f9307d08060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#8  0x00007f9307c84f4a in QDBusConnectionManager::run (this=0x7f9307d08060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#9  0x00007f93072734f6 in QThreadPrivate::start (arg=0x7f9307d08060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:361
#10 0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f92f61a6700 (LWP 1007)):
#0  0x00007f9306ee7a6f in poll () from /lib64/libc.so.6
#1  0x00007f93092bf38a in _xcb_conn_wait () from /lib64/libxcb.so.1
#2  0x00007f93092c0fea in xcb_wait_for_event () from /lib64/libxcb.so.1
#3  0x00007f92f63a3ac8 in QXcbEventQueue::run() () from /lib64/libQt5XcbQpa.so.5
#4  0x00007f93072734f6 in QThreadPrivate::start (arg=0x55c23cc0c880) at thread/qthread_unix.cpp:361
#5  0x00007f93067374e2 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f9306ef2693 in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f93034bec80 (LWP 992)):
[KCrash Handler]
#6  QString::~QString (this=0x55c23d14cf30, __in_chrg=<optimized out>) at /usr/include/c++/9/bits/atomic_base.h:326
#7  QPair<QString, QVariant>::~QPair (this=0x55c23d14cf30, __in_chrg=<optimized out>) at /usr/include/qt5/QtCore/qpair.h:49
#8  QList<QPair<QString, QVariant> >::node_destruct (this=<optimized out>, to=0x55c240d7cb80, from=0x55c240d7cb80) at /usr/include/qt5/QtCore/qlist.h:497
#9  QList<QPair<QString, QVariant> >::dealloc (data=0x55c240d7cb70, this=<optimized out>) at /usr/include/qt5/QtCore/qlist.h:868
#10 0x00007f9308e1912a in QQuickPropertyChangesPrivate::~QQuickPropertyChangesPrivate (this=0x55c241bac240, __in_chrg=<optimized out>) at /usr/include/qt5/QtCore/qlist.h:75
#11 QQuickPropertyChangesPrivate::~QQuickPropertyChangesPrivate (this=0x55c241bac240, __in_chrg=<optimized out>) at util/qquickpropertychanges.cpp:195
#12 0x00007f930744ce17 in QScopedPointerDeleter<QObjectData>::cleanup (pointer=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:52
#13 QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::~QScopedPointer (this=0x55c2428c88b8, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:107
#14 QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:891
#15 0x00007f9308de947f in QQmlPrivate::QQmlElement<QQuickPropertyChanges>::~QQmlElement (this=0x55c2428c88b0, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:106
#16 QQmlPrivate::QQmlElement<QQuickPropertyChanges>::~QQmlElement (this=0x55c2428c88b0, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#17 0x00007f930744be7c in QObjectPrivate::deleteChildren (this=this@entry=0x55c240b796f0) at kernel/qobject.cpp:2016
#18 0x00007f930744cdcf in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1032
#19 0x00007f9308de874f in QQmlPrivate::QQmlElement<QQuickState>::~QQmlElement (this=0x7f92f0033610, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:106
#20 QQmlPrivate::QQmlElement<QQuickState>::~QQmlElement (this=0x7f92f0033610, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#21 0x00007f930744be7c in QObjectPrivate::deleteChildren (this=this@entry=0x55c24391c290) at kernel/qobject.cpp:2016
#22 0x00007f930744cdcf in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1032
#23 0x00007f9308efcdd8 in QQuickItem::~QQuickItem (this=0x55c2435bbf60, __in_chrg=<optimized out>) at items/qquickitem.cpp:2443
#24 0x00007f92ee8906c8 in QQuickLayout::~QQuickLayout (this=0x55c2435bbf60, __in_chrg=<optimized out>) at ../../../include/QtQuick/5.12.5/QtQuick/private/../../../../../src/quick/items/qquickitemchangelistener_p.h:123
#25 0x00007f92ee88bf25 in QQuickLinearLayout::~QQuickLinearLayout (this=0x55c2435bbf60, __in_chrg=<optimized out>) at qquicklinearlayout_p.h:238
#26 QQuickColumnLayout::~QQuickColumnLayout (this=0x55c2435bbf60, __in_chrg=<optimized out>) at qquicklinearlayout_p.h:238
#27 QQmlPrivate::QQmlElement<QQuickColumnLayout>::~QQmlElement (this=0x55c2435bbf60, __in_chrg=<optimized out>) at ../../../include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#28 QQmlPrivate::QQmlElement<QQuickColumnLayout>::~QQmlElement (this=0x55c2435bbf60, __in_chrg=<optimized out>) at ../../../include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#29 0x00007f930744be7c in QObjectPrivate::deleteChildren (this=this@entry=0x55c24481ad40) at kernel/qobject.cpp:2016
#30 0x00007f930744cdcf in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1032
#31 0x00007f9308efcdd8 in QQuickItem::~QQuickItem (this=0x55c240afd240, __in_chrg=<optimized out>) at items/qquickitem.cpp:2443
#32 0x00007f92ee8906c8 in QQuickLayout::~QQuickLayout (this=0x55c240afd240, __in_chrg=<optimized out>) at ../../../include/QtQuick/5.12.5/QtQuick/private/../../../../../src/quick/items/qquickitemchangelistener_p.h:123
#33 0x00007f92ee88bca5 in QQuickLinearLayout::~QQuickLinearLayout (this=0x55c240afd240, __in_chrg=<optimized out>) at qquicklinearlayout_p.h:223
#34 QQuickRowLayout::~QQuickRowLayout (this=0x55c240afd240, __in_chrg=<optimized out>) at qquicklinearlayout_p.h:223
#35 QQmlPrivate::QQmlElement<QQuickRowLayout>::~QQmlElement (this=0x55c240afd240, __in_chrg=<optimized out>) at ../../../include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#36 QQmlPrivate::QQmlElement<QQuickRowLayout>::~QQmlElement (this=0x55c240afd240, __in_chrg=<optimized out>) at ../../../include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#37 0x00007f930744be7c in QObjectPrivate::deleteChildren (this=this@entry=0x55c244839100) at kernel/qobject.cpp:2016
#38 0x00007f930744cdcf in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1032
#39 0x00007f9308efcdd8 in QQuickItem::~QQuickItem (this=0x55c23d5b50f0, __in_chrg=<optimized out>) at items/qquickitem.cpp:2443
#40 0x00007f92ee8906c8 in QQuickLayout::~QQuickLayout (this=0x55c23d5b50f0, __in_chrg=<optimized out>) at ../../../include/QtQuick/5.12.5/QtQuick/private/../../../../../src/quick/items/qquickitemchangelistener_p.h:123
#41 0x00007f92ee88bf25 in QQuickLinearLayout::~QQuickLinearLayout (this=0x55c23d5b50f0, __in_chrg=<optimized out>) at qquicklinearlayout_p.h:238
#42 QQuickColumnLayout::~QQuickColumnLayout (this=0x55c23d5b50f0, __in_chrg=<optimized out>) at qquicklinearlayout_p.h:238
#43 QQmlPrivate::QQmlElement<QQuickColumnLayout>::~QQmlElement (this=0x55c23d5b50f0, __in_chrg=<optimized out>) at ../../../include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#44 QQmlPrivate::QQmlElement<QQuickColumnLayout>::~QQmlElement (this=0x55c23d5b50f0, __in_chrg=<optimized out>) at ../../../include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#45 0x00007f930744be7c in QObjectPrivate::deleteChildren (this=this@entry=0x55c241213490) at kernel/qobject.cpp:2016
#46 0x00007f930744cdcf in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1032
#47 0x00007f9308efcdd8 in QQuickItem::~QQuickItem (this=0x55c2422fe150, __in_chrg=<optimized out>) at items/qquickitem.cpp:2443
#48 0x00007f9308f1ef89 in QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement (this=0x55c2422fe150, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:106
#49 QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement (this=0x55c2422fe150, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:108
#50 0x00007f9307445b74 in QObject::event (this=this@entry=0x55c2422fe150, e=e@entry=0x55c244097e00) at kernel/qobject.cpp:1251
#51 0x00007f9308ef9d23 in QQuickItem::event (this=0x55c2422fe150, ev=0x55c244097e00) at items/qquickitem.cpp:8105
#52 0x00007f9307f10ad6 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#53 0x00007f9307f1a150 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#54 0x00007f930741adf8 in QCoreApplication::notifyInternal2 (receiver=0x55c2422fe150, event=0x55c244097e00) at kernel/qcoreapplication.cpp:1088
#55 0x00007f930741dd9b in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55c23cbe4b90) at kernel/qcoreapplication.cpp:1825
#56 0x00007f930746fff7 in postEventSourceDispatch (s=0x55c23cca3e20) at kernel/qeventdispatcher_glib.cpp:276
#57 0x00007f9305a31510 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#58 0x00007f9305a318a0 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#59 0x00007f9305a31943 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#60 0x00007f930746fd85 in QEventDispatcherGlib::processEvents (this=0x55c23cc98810, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#61 0x00007f9307419cfb in QEventLoop::exec (this=this@entry=0x7ffef64d20d0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#62 0x00007f9307421a26 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#63 0x000055c23c21073a in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/plasma-workspace-5.17.4-1.fc31.x86_64/shell/main.cpp:219
[Inferior 1 (process 992) detached]

Possible duplicates by query: bug 414229, bug 413385, bug 409403, bug 389244, bug 384482.

Reported using DrKonqi