https://bugs.kde.org/show_bug.cgi?id=405426

            Bug ID: 405426
           Summary: kontact crash
           Product: kontact
           Version: unspecified
          Platform: Neon Packages
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kdepim-b...@kde.org
          Reporter: gzmor...@gmail.com
  Target Milestone: ---

Application: kontact (5.10.1)

Qt Version: 5.12.0
Frameworks Version: 5.56.0
Operating System: Linux 4.15.0-46-generic x86_64
Distribution: KDE neon User Edition 5.15

-- Information about the crash:
- What I was doing when the application crashed:
Try to open kontact configuration
- What I was expectiing
To be able to change kontact configuration
- What I get:
kontact crash

The crash can be reproduced every time.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc4b0695bc0 (LWP 6103))]

Thread 29 (Thread 0x7fc35d5bc700 (LWP 6175)):
#0  0x00007fc4a88c2ed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7fc35d5bb710, expected=0, futex_word=0x7fc35d5bb8f8) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fc4a88c2ed9 in __pthread_cond_wait_common (abstime=0x7fc35d5bb7b0,
mutex=0x7fc35d5bb8a8, cond=0x7fc35d5bb8d0) at pthread_cond_wait.c:533
#2  0x00007fc4a88c2ed9 in __pthread_cond_timedwait (cond=0x7fc35d5bb8d0,
mutex=0x7fc35d5bb8a8, abstime=0x7fc35d5bb7b0) at pthread_cond_wait.c:667
#3  0x00007fc49df22177 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc49df22ada in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc49df22bc2 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc49dee0851 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc49dee3387 in base::internal::SchedulerWorker::RunWorker() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc49dee3974 in base::internal::SchedulerWorker::RunPooledWorker() ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc49df24cd1 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc4a88bc6db in start_thread (arg=0x7fc35d5bc700) at
pthread_create.c:463
#11 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7fc35e1dd700 (LWP 6171)):
#0  0x00007fc4acfb60b4 in __GI___libc_read (fd=106, buf=0x7fc35e1dc7d0,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fc4a6a34cd0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc4a69f0027 in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc4a69f04e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc4a69f064c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc4adb1515b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7fc354000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007fc4adab664a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7fc35e1dc9e0, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:225
#7  0x00007fc4ad8de41a in QThread::exec() (this=<optimized out>) at
thread/qthread.cpp:531
#8  0x00007fc4ad8dfbc2 in QThreadPrivate::start(void*) (arg=0x55f5b4425ff0) at
thread/qthread_unix.cpp:361
#9  0x00007fc4a88bc6db in start_thread (arg=0x7fc35e1dd700) at
pthread_create.c:463
#10 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7fc35f3ee700 (LWP 6168)):
#0  0x00007fc4acfbabb9 in __GI___poll (fds=0x7fc350004a10, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc4a69f0539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc4a69f064c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc4adb1515b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7fc350000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fc4adab664a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7fc35f3ed9e0, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:225
#5  0x00007fc4ad8de41a in QThread::exec() (this=<optimized out>) at
thread/qthread.cpp:531
#6  0x00007fc4ad8dfbc2 in QThreadPrivate::start(void*) (arg=0x55f5b43eb4f0) at
thread/qthread_unix.cpp:361
#7  0x00007fc4a88bc6db in start_thread (arg=0x7fc35f3ee700) at
pthread_create.c:463
#8  0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7fc35fbef700 (LWP 6165)):
#0  0x00007fc4acfbabf9 in __GI___poll (fds=0x7fc358003ce0, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc4a69f0539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc4a69f064c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc4adb1515b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7fc358000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fc4adab664a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7fc35fbee9e0, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:225
#5  0x00007fc4ad8de41a in QThread::exec() (this=<optimized out>) at
thread/qthread.cpp:531
#6  0x00007fc4ad8dfbc2 in QThreadPrivate::start(void*) (arg=0x55f5b43baf50) at
thread/qthread_unix.cpp:361
#7  0x00007fc4a88bc6db in start_thread (arg=0x7fc35fbef700) at
pthread_create.c:463
#8  0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7fc366d05700 (LWP 6150)):
#0  0x00007fc4acfbabf9 in __GI___poll (fds=0x7fc3600049b0, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc4a69f0539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc4a69f064c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc4adb1515b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7fc360000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fc4adab664a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7fc366d049e0, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:225
#5  0x00007fc4ad8de41a in QThread::exec() (this=<optimized out>) at
thread/qthread.cpp:531
#6  0x00007fc4ad8dfbc2 in QThreadPrivate::start(void*) (arg=0x55f5b40c4250) at
thread/qthread_unix.cpp:361
#7  0x00007fc4a88bc6db in start_thread (arg=0x7fc366d05700) at
pthread_create.c:463
#8  0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7fc373fff700 (LWP 6147)):
#0  0x00007fc4a6a36049 in g_mutex_lock () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc4a69f00c6 in g_main_context_dispatch () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc4a69f05c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc4a69f064c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc4adb1515b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7fc368000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fc4adab664a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7fc373ffe9e0, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:225
#6  0x00007fc4ad8de41a in QThread::exec() (this=<optimized out>) at
thread/qthread.cpp:531
#7  0x00007fc4ad8dfbc2 in QThreadPrivate::start(void*) (arg=0x55f5b3eddfa0) at
thread/qthread_unix.cpp:361
#8  0x00007fc4a88bc6db in start_thread (arg=0x7fc373fff700) at
pthread_create.c:463
#9  0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7fc378e49700 (LWP 6146)):
#0  0x00007fc4a6a36049 in g_mutex_lock () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc4a69efaa3 in g_main_context_prepare () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc4a69f046b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc4a69f064c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc4adb1515b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7fc36c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fc4adab664a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7fc378e489e0, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:225
#6  0x00007fc4ad8de41a in QThread::exec() (this=<optimized out>) at
thread/qthread.cpp:531
#7  0x00007fc4ad8dfbc2 in QThreadPrivate::start(void*) (arg=0x55f5b3f10be0) at
thread/qthread_unix.cpp:361
#8  0x00007fc4a88bc6db in start_thread (arg=0x7fc378e49700) at
pthread_create.c:463
#9  0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7fc379ce8700 (LWP 6145)):
#0  0x00007fc4acfb60b4 in __GI___libc_read (fd=73, buf=0x7fc379ce77d0,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fc4a6a34cd0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc4a69f0027 in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc4a69f04e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc4a69f064c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc4adb1515b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7fc374000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007fc4adab664a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7fc379ce79e0, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:225
#7  0x00007fc4ad8de41a in QThread::exec() (this=<optimized out>) at
thread/qthread.cpp:531
#8  0x00007fc4ad8dfbc2 in QThreadPrivate::start(void*) (arg=0x55f5b3f2b4e0) at
thread/qthread_unix.cpp:361
#9  0x00007fc4a88bc6db in start_thread (arg=0x7fc379ce8700) at
pthread_create.c:463
#10 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7fc38bfff700 (LWP 6131)):
#0  0x00007fc4a88c29f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7fc38bffe908) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc4a88c29f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7fc38bffe8b8, cond=0x7fc38bffe8e0) at pthread_cond_wait.c:502
#2  0x00007fc4a88c29f3 in __pthread_cond_wait (cond=0x7fc38bffe8e0,
mutex=0x7fc38bffe8b8) at pthread_cond_wait.c:655
#3  0x00007fc49df220a9 in base::ConditionVariable::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc49df22ae8 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc49df22b7f in base::WaitableEvent::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc49dee0868 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc49dee36b6 in base::internal::SchedulerWorker::RunWorker() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc49dee39f4 in base::internal::SchedulerWorker::RunDedicatedWorker()
() at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc49df24cd1 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc4a88bc6db in start_thread (arg=0x7fc38bfff700) at
pthread_create.c:463
#11 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7fc448957700 (LWP 6130)):
#0  0x00007fc4acfd66ac in __lll_lock_wait_private () at
../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fc4acfd8474 in ___fprintf_chk (fp=0x7fc4ad2938b0
<_IO_stdfile_2_lock>, flag=1, format=0x7fc4955296a8 "[%s] %s\n") at
fprintf_chk.c:30
#2  0x00007fc4955119ad in event_logv_ () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fc495511b44 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fc49551346c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fc495509114 in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fc49df28789 in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc49debf49b in base::RunLoop::Run() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc49def1d21 in base::Thread::ThreadMain() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc49df24cd1 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc4a88bc6db in start_thread (arg=0x7fc448957700) at
pthread_create.c:463
#11 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fc449158700 (LWP 6129)):
#0  0x00007fc4a88c2ed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7fc449157710, expected=0, futex_word=0x7fc4491578f8) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fc4a88c2ed9 in __pthread_cond_wait_common (abstime=0x7fc4491577b0,
mutex=0x7fc4491578a8, cond=0x7fc4491578d0) at pthread_cond_wait.c:533
#2  0x00007fc4a88c2ed9 in __pthread_cond_timedwait (cond=0x7fc4491578d0,
mutex=0x7fc4491578a8, abstime=0x7fc4491577b0) at pthread_cond_wait.c:667
#3  0x00007fc49df22177 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc49df22ada in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc49df22bc2 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc49dee0851 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc49dee3387 in base::internal::SchedulerWorker::RunWorker() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc49dee3974 in base::internal::SchedulerWorker::RunPooledWorker() ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc49df24cd1 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc4a88bc6db in start_thread (arg=0x7fc449158700) at
pthread_create.c:463
#11 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7fc44a5ef700 (LWP 6128)):
#0  0x00007fc4a88c29f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7fc496c4ffb8) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc4a88c29f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7fc496c4ff68, cond=0x7fc496c4ff90) at pthread_cond_wait.c:502
#2  0x00007fc4a88c29f3 in __pthread_cond_wait (cond=0x7fc496c4ff90,
mutex=0x7fc496c4ff68) at pthread_cond_wait.c:655
#3  0x00007fc496959844 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007fc496959889 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007fc4a88bc6db in start_thread (arg=0x7fc44a5ef700) at
pthread_create.c:463
#6  0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fc44adf0700 (LWP 6127)):
#0  0x00007fc4acfbabf9 in __GI___poll (fds=0x7fc414007030, nfds=3, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc46c5e2481 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007fc46c5d3e40 in pa_mainloop_poll () at
/usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007fc46c5d44d0 in pa_mainloop_iterate () at
/usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fc46c5d4560 in pa_mainloop_run () at
/usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fc46c5e23c9 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fc46c384318 in  () at
/usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#7  0x00007fc4a88bc6db in start_thread (arg=0x7fc44adf0700) at
pthread_create.c:463
#8  0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fc44b7fe700 (LWP 6126)):
#0  0x00007fc4acfd66ac in __lll_lock_wait_private () at
../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fc4acfd8474 in ___fprintf_chk (fp=0x7fc4ad2938b0
<_IO_stdfile_2_lock>, flag=1, format=0x7fc4955296a8 "[%s] %s\n") at
fprintf_chk.c:30
#2  0x00007fc4955119ad in event_logv_ () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fc495511b44 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fc49551346c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fc495509114 in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fc49df28789 in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc49debf49b in base::RunLoop::Run() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc49def1d21 in base::Thread::ThreadMain() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc49df24cd1 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc4a88bc6db in start_thread (arg=0x7fc44b7fe700) at
pthread_create.c:463
#11 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fc450ff9700 (LWP 6125)):
#0  0x00007fc4acfc1839 in syscall () at
../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fc4ad8e22a4 in QtLinuxFutex::_q_futex(int*, int, int, unsigned long
long, int*, int) (val3=0, addr2=0x0, val2=0, val=<optimized out>, op=0,
addr=<optimized out>) at thread/qfutex_p.h:92
#2  0x00007fc4ad8e22a4 in QtLinuxFutex::futexWait<QBasicAtomicInteger<unsigned
int> >(QBasicAtomicInteger<unsigned int>&, QBasicAtomicInteger<unsigned
int>::Type) (expectedValue=<optimized out>, futex=...) at thread/qfutex_p.h:107
#3  0x00007fc4ad8e22a4 in
futexSemaphoreTryAcquire_loop<false>(QBasicAtomicInteger<unsigned long long>&,
unsigned long long, unsigned long long, int) (timeout=-1, nn=8589934593,
curValue=<optimized out>, u=...) at thread/qsemaphore.cpp:219
#4  0x00007fc4ad8e22a4 in
futexSemaphoreTryAcquire<false>(QBasicAtomicInteger<unsigned long long>&, int,
int) (timeout=-1, n=n@entry=1, u=...) at thread/qsemaphore.cpp:262
#5  0x00007fc4ad8e22a4 in QSemaphore::acquire(int)
(this=this@entry=0x7fc450ff7df0, n=n@entry=1) at thread/qsemaphore.cpp:326
#6  0x00007fc4adae80c0 in QMetaObject::activate(QObject*, int, int, void**)
(sender=sender@entry=0x55f5b3f940a0, signalOffset=<optimized out>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fc450ff7e80)
at kernel/qobject.cpp:3743
#7  0x00007fc4adae84f7 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) (sender=sender@entry=0x55f5b3f940a0, m=m@entry=0x7fc4adf5c980
<QObject::staticMetaObject>, local_signal_index=local_signal_index@entry=0,
argv=argv@entry=0x7fc450ff7e80) at kernel/qobject.cpp:3631
#8  0x00007fc4adae859f in QObject::destroyed(QObject*)
(this=this@entry=0x55f5b3f940a0, _t1=<optimized out>, _t1@entry=0x55f5b3f940a0)
at .moc/moc_qobject.cpp:218
#9  0x00007fc4adaeef7a in QObject::~QObject() (this=<optimized out>,
__in_chrg=<optimized out>) at kernel/qobject.cpp:900
#10 0x00007fc4a2d9f433 in  () at /usr/lib/x86_64-linux-gnu/libKF5Wallet.so.5
#11 0x00007fc4a2d99e93 in  () at /usr/lib/x86_64-linux-gnu/libKF5Wallet.so.5
#12 0x00007fc4a2d99ea9 in  () at /usr/lib/x86_64-linux-gnu/libKF5Wallet.so.5
#13 0x00007fc4acee9041 in __run_exit_handlers (status=1, listp=0x7fc4ad291718
<__exit_funcs>, run_list_atexit=run_list_atexit@entry=true,
run_dtors=run_dtors@entry=true) at exit.c:108
#14 0x00007fc4acee913a in __GI_exit (status=<optimized out>) at exit.c:139
#15 0x00007fc478fa0b43 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#16 0x00007fc478f7ab7d in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#17 0x00007fc478bb1bf8 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#18 0x00007fc478f7d56f in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#19 0x00007fc478f3f8da in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#20 0x00007fc47a7b4968 in  () at /usr/lib/x86_64-linux-gnu/libGLX_mesa.so.0
#21 0x00007fc49a835212 in  () at /usr/lib/x86_64-linux-gnu/libGLX.so.0
#22 0x00007fc49a836f82 in  () at /usr/lib/x86_64-linux-gnu/libGLX.so.0
#23 0x00007fc49e5a8b66 in gl::GLContextGLX::MakeCurrent(gl::GLSurface*) [clone
.part.35] () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#24 0x00007fc4a0720c07 in gpu::CommandBufferStub::Destroy() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#25 0x00007fc4a0721463 in gpu::CommandBufferStub::~CommandBufferStub() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#26 0x00007fc4a072c701 in
gpu::GLES2CommandBufferStub::~GLES2CommandBufferStub() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#27 0x00007fc4a072854f in gpu::GpuChannel::~GpuChannel() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#28 0x00007fc4a0728711 in gpu::GpuChannel::~GpuChannel() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#29 0x00007fc4a0728a6b in
std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<int
const, std::unique_ptr<gpu::GpuChannel, std::default_delete<gpu::GpuChannel> >
>, false> > >::_M_deallocate_node(std::__detail::_Hash_node<std::pair<int
const, std::unique_ptr<gpu::GpuChannel, std::default_delete<gpu::GpuChannel> >
>, false>*) [clone .isra.94] () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#30 0x00007fc4a0729085 in gpu::GpuChannelManager::RemoveChannel(int) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#31 0x00007fc49de7c133 in base::debug::TaskAnnotator::RunTask(char const*,
base::PendingTask*) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#32 0x00007fc49dea1c2a in base::MessageLoop::RunTask(base::PendingTask*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#33 0x00007fc49dea22ef in
base::MessageLoop::DeferOrRunPendingTask(base::PendingTask) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#34 0x00007fc49dea2478 in base::MessageLoop::DoWork() [clone .part.457] () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#35 0x00007fc49de9cb11 in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#36 0x00007fc49debf49b in base::RunLoop::Run() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#37 0x00007fc49def1d21 in base::Thread::ThreadMain() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#38 0x00007fc49df24cd1 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#39 0x00007fc4a88bc6db in start_thread (arg=0x7fc450ff9700) at
pthread_create.c:463
#40 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fc4517fa700 (LWP 6124)):
#0  0x00007fc4a88c2ed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7fc4517f9700, expected=0, futex_word=0x7fc4517f98e8) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fc4a88c2ed9 in __pthread_cond_wait_common (abstime=0x7fc4517f97a0,
mutex=0x7fc4517f9898, cond=0x7fc4517f98c0) at pthread_cond_wait.c:533
#2  0x00007fc4a88c2ed9 in __pthread_cond_timedwait (cond=0x7fc4517f98c0,
mutex=0x7fc4517f9898, abstime=0x7fc4517f97a0) at pthread_cond_wait.c:667
#3  0x00007fc49df22177 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc49df22ada in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc49de9cb70 in
base::MessagePumpDefault::Run(base::MessagePump::Delegate*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc49debf49b in base::RunLoop::Run() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc49def1d21 in base::Thread::ThreadMain() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc49df24cd1 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc4a88bc6db in start_thread (arg=0x7fc4517fa700) at
pthread_create.c:463
#10 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fc451ffb700 (LWP 6123)):
#0  0x00007fc4a88c29f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55f5b3ccaa58) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc4a88c29f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x55f5b3cca998, cond=0x55f5b3ccaa30) at pthread_cond_wait.c:502
#2  0x00007fc4a88c29f3 in __pthread_cond_wait (cond=0x55f5b3ccaa30,
mutex=0x55f5b3cca998) at pthread_cond_wait.c:655
#3  0x00007fc49df220a9 in base::ConditionVariable::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc49e7ebb28 in cc::SingleThreadTaskGraphRunner::Run() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc49def32df in base::SimpleThread::ThreadMain() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc49df24cd1 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc4a88bc6db in start_thread (arg=0x7fc451ffb700) at
pthread_create.c:463
#8  0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fc4527fc700 (LWP 6122)):
#0  0x00007fc4a88c29f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7fc4527fb908) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc4a88c29f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7fc4527fb8b8, cond=0x7fc4527fb8e0) at pthread_cond_wait.c:502
#2  0x00007fc4a88c29f3 in __pthread_cond_wait (cond=0x7fc4527fb8e0,
mutex=0x7fc4527fb8b8) at pthread_cond_wait.c:655
#3  0x00007fc49df220a9 in base::ConditionVariable::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc49df22ae8 in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc49df22b7f in base::WaitableEvent::Wait() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc49dee0868 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc49dee36b6 in base::internal::SchedulerWorker::RunWorker() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc49dee39b4 in base::internal::SchedulerWorker::RunSharedWorker() ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc49df24cd1 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc4a88bc6db in start_thread (arg=0x7fc4527fc700) at
pthread_create.c:463
#11 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fc452ffd700 (LWP 6121)):
#0  0x00007fc4acfd66ac in __lll_lock_wait_private () at
../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fc4acfd8474 in ___fprintf_chk (fp=0x7fc4ad2938b0
<_IO_stdfile_2_lock>, flag=1, format=0x7fc4955296a8 "[%s] %s\n") at
fprintf_chk.c:30
#2  0x00007fc4955119ad in event_logv_ () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fc495511b44 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fc49551346c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fc495509114 in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fc49df28789 in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc49debf49b in base::RunLoop::Run() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc49d877754 in
content::BrowserProcessSubThread::IOThreadRun(base::RunLoop*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc49def1e78 in base::Thread::ThreadMain() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc49df24cd1 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007fc4a88bc6db in start_thread (arg=0x7fc452ffd700) at
pthread_create.c:463
#12 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fc44bfff700 (LWP 6120)):
#0  0x00007fc4a88c2ed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7fc44bffe710, expected=0, futex_word=0x7fc44bffe8f8) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fc4a88c2ed9 in __pthread_cond_wait_common (abstime=0x7fc44bffe7b0,
mutex=0x7fc44bffe8a8, cond=0x7fc44bffe8d0) at pthread_cond_wait.c:533
#2  0x00007fc4a88c2ed9 in __pthread_cond_timedwait (cond=0x7fc44bffe8d0,
mutex=0x7fc44bffe8a8, abstime=0x7fc44bffe7b0) at pthread_cond_wait.c:667
#3  0x00007fc49df22177 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc49df22ada in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc49df22bc2 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc49dee0851 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc49dee36b6 in base::internal::SchedulerWorker::RunWorker() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc49dee3974 in base::internal::SchedulerWorker::RunPooledWorker() ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc49df24cd1 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc4a88bc6db in start_thread (arg=0x7fc44bfff700) at
pthread_create.c:463
#11 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fc4537fe700 (LWP 6119)):
#0  0x00007fc4a88c2ed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7fc4537fd710, expected=0, futex_word=0x7fc4537fd8f8) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fc4a88c2ed9 in __pthread_cond_wait_common (abstime=0x7fc4537fd7b0,
mutex=0x7fc4537fd8a8, cond=0x7fc4537fd8d0) at pthread_cond_wait.c:533
#2  0x00007fc4a88c2ed9 in __pthread_cond_timedwait (cond=0x7fc4537fd8d0,
mutex=0x7fc4537fd8a8, abstime=0x7fc4537fd7b0) at pthread_cond_wait.c:667
#3  0x00007fc49df22177 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc49df22ada in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc49df22bc2 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc49dee0851 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc49dee36b6 in base::internal::SchedulerWorker::RunWorker() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc49dee3974 in base::internal::SchedulerWorker::RunPooledWorker() ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc49df24cd1 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc4a88bc6db in start_thread (arg=0x7fc4537fe700) at
pthread_create.c:463
#11 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fc453fff700 (LWP 6118)):
#0  0x00007fc4a88c2ed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7fc453ffe710, expected=0, futex_word=0x7fc453ffe8f8) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fc4a88c2ed9 in __pthread_cond_wait_common (abstime=0x7fc453ffe7b0,
mutex=0x7fc453ffe8a8, cond=0x7fc453ffe8d0) at pthread_cond_wait.c:533
#2  0x00007fc4a88c2ed9 in __pthread_cond_timedwait (cond=0x7fc453ffe8d0,
mutex=0x7fc453ffe8a8, abstime=0x7fc453ffe7b0) at pthread_cond_wait.c:667
#3  0x00007fc49df22177 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc49df22ada in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc49df22bc2 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc49dee0851 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc49dee36b6 in base::internal::SchedulerWorker::RunWorker() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc49dee3974 in base::internal::SchedulerWorker::RunPooledWorker() ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc49df24cd1 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc4a88bc6db in start_thread (arg=0x7fc453fff700) at
pthread_create.c:463
#11 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fc46d000700 (LWP 6117)):
#0  0x00007fc4a88c2ed9 in futex_reltimed_wait_cancelable (private=<optimized
out>, reltime=0x7fc46cfff710, expected=0, futex_word=0x7fc46cfff8f8) at
../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007fc4a88c2ed9 in __pthread_cond_wait_common (abstime=0x7fc46cfff7b0,
mutex=0x7fc46cfff8a8, cond=0x7fc46cfff8d0) at pthread_cond_wait.c:533
#2  0x00007fc4a88c2ed9 in __pthread_cond_timedwait (cond=0x7fc46cfff8d0,
mutex=0x7fc46cfff8a8, abstime=0x7fc46cfff7b0) at pthread_cond_wait.c:667
#3  0x00007fc49df22177 in base::ConditionVariable::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007fc49df22ada in base::WaitableEvent::TimedWaitUntil(base::TimeTicks
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007fc49df22bc2 in base::WaitableEvent::TimedWait(base::TimeDelta
const&) () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007fc49dee0851 in
base::internal::SchedulerWorker::Delegate::WaitForWork(base::WaitableEvent*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc49dee36b6 in base::internal::SchedulerWorker::RunWorker() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc49dee3974 in base::internal::SchedulerWorker::RunPooledWorker() ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc49df24cd1 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc4a88bc6db in start_thread (arg=0x7fc46d000700) at
pthread_create.c:463
#11 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fc46d801700 (LWP 6116)):
#0  0x00007fc4acfb6187 in __GI___libc_write (fd=2, buf=0x7fc46d7fdc20,
nbytes=39) at ../sysdeps/unix/sysv/linux/write.c:27
#1  0x00007fc4acf311bd in _IO_new_file_write (f=0x7fc4ad292680
<_IO_2_1_stderr_>, data=0x7fc46d7fdc20, n=39) at fileops.c:1203
#2  0x00007fc4acf31b2f in new_do_write (to_do=<optimized out>,
data=0x7fc46d7fdc20 "[warn] epoll_wait: Bad file descriptor\n",
fp=0x7fc4ad292680 <_IO_2_1_stderr_>) at fileops.c:457
#3  0x00007fc4acf31b2f in _IO_new_file_xsputn (f=0x7fc4ad292680
<_IO_2_1_stderr_>, data=<optimized out>, n=39) at fileops.c:1277
#4  0x00007fc4acf04707 in buffered_vfprintf (s=s@entry=0x7fc4ad292680
<_IO_2_1_stderr_>, format=format@entry=0x7fc4955296a8 "[%s] %s\n",
args=args@entry=0x7fc46d8001e0) at vfprintf.c:2350
#5  0x00007fc4acf01726 in _IO_vfprintf_internal (s=s@entry=0x7fc4ad292680
<_IO_2_1_stderr_>, format=0x7fc4955296a8 "[%s] %s\n",
ap=ap@entry=0x7fc46d8001e0) at vfprintf.c:1301
#6  0x00007fc4acfd84c6 in ___fprintf_chk (fp=0x7fc4ad292680 <_IO_2_1_stderr_>,
flag=1, format=<optimized out>) at fprintf_chk.c:35
#7  0x00007fc4955119ad in event_logv_ () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#8  0x00007fc495511b44 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#9  0x00007fc49551346c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#10 0x00007fc495509114 in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#11 0x00007fc49df288c4 in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007fc49debf49b in base::RunLoop::Run() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007fc49dee6f44 in base::internal::ServiceThread::Run(base::RunLoop*) ()
at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007fc49def1e78 in base::Thread::ThreadMain() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007fc49df24cd1 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#16 0x00007fc4a88bc6db in start_thread (arg=0x7fc46d801700) at
pthread_create.c:463
#17 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fc46e803700 (LWP 6114)):
#0  0x00007fc4acfd66ac in __lll_lock_wait_private () at
../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fc4acfd8474 in ___fprintf_chk (fp=0x7fc4ad2938b0
<_IO_stdfile_2_lock>, flag=1, format=0x7fc4955296a8 "[%s] %s\n") at
fprintf_chk.c:30
#2  0x00007fc4955119ad in event_logv_ () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007fc495511b44 in event_warn () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007fc49551346c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007fc495509114 in event_base_loop () at
/usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007fc49df28789 in
base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007fc49debf49b in base::RunLoop::Run() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007fc49def1d21 in base::Thread::ThreadMain() () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007fc49df24cd1 in base::(anonymous namespace)::ThreadFunc(void*) () at
/usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007fc4a88bc6db in start_thread (arg=0x7fc46e803700) at
pthread_create.c:463
#11 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fc47580d700 (LWP 6107)):
#0  0x00007fc4a49ac589 in _dbus_atomic_dec () at
/lib/x86_64-linux-gnu/libdbus-1.so.3
#1  0x00007fc4a4996efe in dbus_message_unref () at
/lib/x86_64-linux-gnu/libdbus-1.so.3
#2  0x00007fc4a498ad0c in dbus_bus_remove_match () at
/lib/x86_64-linux-gnu/libdbus-1.so.3
#3  0x00007fc4ac20dbb6 in q_dbus_bus_remove_match (error=0x0, rule=<optimized
out>, connection=<optimized out>) at qdbus_symbols_p.h:191
#4  0x00007fc4ac20dbb6 in
QDBusConnectionPrivate::removeSignalHookNoLock(QHash<QString,
QDBusConnectionPrivate::SignalHook>::iterator) (this=this@entry=0x7fc468003f10,
it=it@entry=...) at qdbusintegrator.cpp:2325
#5  0x00007fc4ac20ea0c in QDBusConnectionPrivate::objectDestroyed(QObject*)
(this=0x7fc468003f10, obj=0x55f5b3f940a0) at qdbusintegrator.cpp:1232
#6  0x00007fc4adae8992 in QObject::event(QEvent*) (this=0x7fc468003f10,
e=<optimized out>) at kernel/qobject.cpp:1249
#7  0x00007fc4adab8311 in doNotify (event=0x55f5b3e52390,
receiver=0x7fc468003f10) at kernel/qcoreapplication.cpp:1151
#8  0x00007fc4adab8311 in QCoreApplication::notify(QObject*, QEvent*)
(event=<optimized out>, receiver=<optimized out>, this=<optimized out>) at
kernel/qcoreapplication.cpp:1137
#9  0x00007fc4adab8311 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x7fc468003f10, event=0x55f5b3e52390) at
kernel/qcoreapplication.cpp:1061
#10 0x00007fc4adab84fe in QCoreApplication::sendEvent(QObject*, QEvent*)
(receiver=<optimized out>, event=event@entry=0x55f5b3e52390) at
kernel/qcoreapplication.cpp:1451
#11 0x00007fc4adabae87 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0,
data=0x55f5b3bd6cc0) at kernel/qcoreapplication.cpp:1800
#12 0x00007fc4adabb428 in QCoreApplication::sendPostedEvents(QObject*, int)
(receiver=receiver@entry=0x0, event_type=event_type@entry=0) at
kernel/qcoreapplication.cpp:1654
#13 0x00007fc4adb15b23 in postEventSourceDispatch(GSource*, GSourceFunc,
gpointer) (s=0x7fc468004ba0) at kernel/qeventdispatcher_glib.cpp:276
#14 0x00007fc4a69f0387 in g_main_context_dispatch () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007fc4a69f05c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007fc4a69f064c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007fc4adb1515b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7fc468000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#18 0x00007fc4adab664a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7fc47580c9b0, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:225
#19 0x00007fc4ad8de41a in QThread::exec() (this=this@entry=0x7fc4ac476d80
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread.cpp:531
#20 0x00007fc4ac1ff015 in QDBusConnectionManager::run() (this=0x7fc4ac476d80
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
qdbusconnection.cpp:178
#21 0x00007fc4ad8dfbc2 in QThreadPrivate::start(void*) (arg=0x7fc4ac476d80
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread_unix.cpp:361
#22 0x00007fc4a88bc6db in start_thread (arg=0x7fc47580d700) at
pthread_create.c:463
#23 0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fc477a91700 (LWP 6106)):
#0  0x00007fc4a88c29f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55f5b38abf28) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc4a88c29f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x55f5b38abed8, cond=0x55f5b38abf00) at pthread_cond_wait.c:502
#2  0x00007fc4a88c29f3 in __pthread_cond_wait (cond=0x55f5b38abf00,
mutex=0x55f5b38abed8) at pthread_cond_wait.c:655
#3  0x00007fc478e2db1b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007fc478e2d847 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007fc4a88bc6db in start_thread (arg=0x7fc477a91700) at
pthread_create.c:463
#6  0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fc481c2b700 (LWP 6105)):
#0  0x00007fc4acfbabf9 in __GI___poll (fds=0x7fc481c2a8f8, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc4a8eeb747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fc4a8eed36a in xcb_wait_for_event () at
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fc48291e32a in QXcbEventQueue::run() (this=0x55f5b386afe0) at
qxcbeventqueue.cpp:225
#4  0x00007fc4ad8dfbc2 in QThreadPrivate::start(void*) (arg=0x55f5b386afe0) at
thread/qthread_unix.cpp:361
#5  0x00007fc4a88bc6db in start_thread (arg=0x7fc481c2b700) at
pthread_create.c:463
#6  0x00007fc4acfc788f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fc4b0695bc0 (LWP 6103)):
[KCrash Handler]
#6  0x00007fc4abfc0786 in KCModuleProxy::realModule() const
(this=this@entry=0x0) at ./src/kcmoduleproxy.cpp:66
#7  0x00007fc4abfbe065 in
KCMultiDialogPrivate::_k_slotCurrentPageChanged(KPageWidgetItem*,
KPageWidgetItem*) (this=0x55f5b4a2d720, current=0x55f5b4a41c50, previous=0x0)
at ./src/kcmultidialog.cpp:111
#8  0x00007fc4abfbe9c7 in KCMultiDialog::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**) (_o=<optimized out>, _c=<optimized out>,
_id=<optimized out>, _a=<optimized out>) at
./obj-x86_64-linux-gnu/src/KF5KCMUtils_autogen/include/moc_kcmultidialog.cpp:118
#9  0x00007fc4adae7e25 in QMetaObject::activate(QObject*, int, int, void**)
(sender=0x55f5b4449240, signalOffset=<optimized out>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffec3e08e20)
at kernel/qobject.cpp:3778
#10 0x00007fc4adae84f7 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) (sender=<optimized out>, m=m@entry=0x7fc4ab1b52e0
<KPageDialog::staticMetaObject>, local_signal_index=local_signal_index@entry=0,
argv=argv@entry=0x7ffec3e08e20) at kernel/qobject.cpp:3631
#11 0x00007fc4aaf6bb4b in KPageDialog::currentPageChanged(KPageWidgetItem*,
KPageWidgetItem*) (this=<optimized out>, _t1=<optimized out>, _t2=<optimized
out>) at
./obj-x86_64-linux-gnu/src/KF5WidgetsAddons_autogen/EWIEGA46WW/moc_kpagedialog.cpp:166
#12 0x00007fc4adae7f3f in QtPrivate::QSlotObjectBase::call(QObject*, void**)
(a=0x7ffec3e08f60, r=0x55f5b4449240, this=0x55f5b4433210) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#13 0x00007fc4adae7f3f in QMetaObject::activate(QObject*, int, int, void**)
(sender=0x55f5b3fd8340, signalOffset=<optimized out>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffec3e08f60)
at kernel/qobject.cpp:3759
#14 0x00007fc4adae84f7 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) (sender=<optimized out>, m=m@entry=0x7fc4ab1affa0
<KPageWidget::staticMetaObject>, local_signal_index=local_signal_index@entry=0,
argv=argv@entry=0x7ffec3e08f60) at kernel/qobject.cpp:3631
#15 0x00007fc4aaf5806b in KPageWidget::currentPageChanged(KPageWidgetItem*,
KPageWidgetItem*) (this=<optimized out>, _t1=<optimized out>, _t2=<optimized
out>) at
./obj-x86_64-linux-gnu/src/KF5WidgetsAddons_autogen/include/moc_kpagewidget.cpp:195
#16 0x00007fc4aaf581d4 in
KPageWidgetPrivate::_k_slotCurrentPageChanged(QModelIndex const&, QModelIndex
const&) (this=<optimized out>, current=..., before=...) at
./src/kpagewidget.cpp:45
#17 0x00007fc4aaf5822c in KPageWidget::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**) (_o=<optimized out>, _c=<optimized out>,
_id=<optimized out>, _a=<optimized out>) at
./obj-x86_64-linux-gnu/src/KF5WidgetsAddons_autogen/include/moc_kpagewidget.cpp:96
#18 0x00007fc4adae7e25 in QMetaObject::activate(QObject*, int, int, void**)
(sender=0x55f5b3fd8340, signalOffset=<optimized out>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffec3e090d0)
at kernel/qobject.cpp:3778
#19 0x00007fc4adae84f7 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) (sender=<optimized out>, m=m@entry=0x7fc4ab1afd40
<KPageView::staticMetaObject>, local_signal_index=local_signal_index@entry=0,
argv=argv@entry=0x7ffec3e090d0) at kernel/qobject.cpp:3631
#20 0x00007fc4aaf52817 in KPageView::currentPageChanged(QModelIndex const&,
QModelIndex const&) (this=<optimized out>, _t1=..., _t2=...) at
./obj-x86_64-linux-gnu/src/KF5WidgetsAddons_autogen/include/moc_kpageview.cpp:215
#21 0x00007fc4aaf53c59 in KPageViewPrivate::_k_pageSelected(QItemSelection
const&, QItemSelection const&) (this=0x55f5b3fd2280, index=..., previous=...)
at ./src/kpageview.cpp:256
#22 0x00007fc4adae7e25 in QMetaObject::activate(QObject*, int, int, void**)
(sender=sender@entry=0x55f5b443ffe0, signalOffset=<optimized out>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffec3e092a0)
at kernel/qobject.cpp:3778
#23 0x00007fc4adae84f7 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) (sender=sender@entry=0x55f5b443ffe0, m=m@entry=0x7fc4adf636a0
<QItemSelectionModel::staticMetaObject>,
local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffec3e092a0)
at kernel/qobject.cpp:3631
#24 0x00007fc4ada6ddf7 in QItemSelectionModel::selectionChanged(QItemSelection
const&, QItemSelection const&) (this=this@entry=0x55f5b443ffe0, _t1=...,
_t2=...) at .moc/moc_qitemselectionmodel.cpp:458
#25 0x00007fc4ada72960 in
QItemSelectionModel::emitSelectionChanged(QItemSelection const&, QItemSelection
const&) (this=this@entry=0x55f5b443ffe0, newSelection=..., oldSelection=...) at
itemmodels/qitemselectionmodel.cpp:1871
#26 0x00007fc4ada75eab in QItemSelectionModel::select(QItemSelection const&,
QFlags<QItemSelectionModel::SelectionFlag>) (this=0x55f5b443ffe0,
selection=..., command=...) at itemmodels/qitemselectionmodel.cpp:1338
#27 0x00007fc4ada6fe5c in QItemSelectionModel::select(QModelIndex const&,
QFlags<QItemSelectionModel::SelectionFlag>) (this=0x55f5b443ffe0, index=...,
command=...) at itemmodels/qitemselectionmodel.cpp:1188
#28 0x00007fc4ada6e1a4 in QItemSelectionModel::setCurrentIndex(QModelIndex
const&, QFlags<QItemSelectionModel::SelectionFlag>)
(this=this@entry=0x55f5b443ffe0, index=..., command=command@entry=...) at
itemmodels/qitemselectionmodel.cpp:1413
#29 0x00007fc4aaf52cca in KPageViewPrivate::updateSelection() (this=<optimized
out>) at ./src/kpageview.cpp:111
#30 0x00007fc4aaf53a75 in KPageViewPrivate::_k_modelChanged()
(this=0x55f5b3fd2280) at ./src/kpageview.cpp:218
#31 0x00007fc4adae7e25 in QMetaObject::activate(QObject*, int, int, void**)
(sender=sender@entry=0x55f5b41c6bf0, signalOffset=<optimized out>,
local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffec3e09700)
at kernel/qobject.cpp:3778
#32 0x00007fc4adae84f7 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) (sender=sender@entry=0x55f5b41c6bf0, m=m@entry=0x7fc4adf635a0
<QAbstractItemModel::staticMetaObject>,
local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffec3e09700)
at kernel/qobject.cpp:3631
#33 0x00007fc4ada5fa66 in
QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&,
QAbstractItemModel::LayoutChangeHint) (this=this@entry=0x55f5b41c6bf0, _t1=...,
_t2=<optimized out>, _t2@entry=QAbstractItemModel::NoLayoutChangeHint) at
.moc/moc_qabstractitemmodel.cpp:570
#34 0x00007fc4aaf59e96 in KPageWidgetModel::addPage(KPageWidgetItem*)
(this=0x55f5b41c6bf0, item=0x55f5b4a41c50) at ./src/kpagewidgetmodel.cpp:440
#35 0x00007fc4abfd66b2 in
KSettings::DialogPrivate::createPageItem(KPageWidgetItem*, QString const&,
QString const&, QString const&, int) (this=this@entry=0x55f5b4a2d720,
parentItem=parentItem@entry=0x0, name=..., comment=..., iconName=...,
weight=weight@entry=300) at ./src/ksettings/dialog.cpp:280
#36 0x00007fc4abfd68ef in KSettings::DialogPrivate::parseGroupFile(QString
const&) (this=this@entry=0x55f5b4a2d720, filename=...) at
./src/ksettings/dialog.cpp:299
#37 0x00007fc4abfd6ee9 in KSettings::DialogPrivate::createDialogFromServices()
(this=this@entry=0x55f5b4a2d720) at ./src/ksettings/dialog.cpp:319
#38 0x00007fc4abfd8694 in KSettings::Dialog::showEvent(QShowEvent*)
(this=0x55f5b4449240) at ./src/ksettings/dialog.cpp:129
#39 0x00007fc4ae8ee838 in QWidget::event(QEvent*) (this=0x55f5b4449240,
event=0x7ffec3e09e60) at kernel/qwidget.cpp:9268
#40 0x00007fc4ae8ae83c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=this@entry=0x55f5b3822e80, receiver=receiver@entry=0x55f5b4449240,
e=e@entry=0x7ffec3e09e60) at kernel/qapplication.cpp:3752
#41 0x00007fc4ae8b5dd0 in QApplication::notify(QObject*, QEvent*)
(this=0x7ffec3e0b180, receiver=0x55f5b4449240, e=0x7ffec3e09e60) at
kernel/qapplication.cpp:3499
#42 0x00007fc4adab8328 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x55f5b4449240, event=0x7ffec3e09e60) at
kernel/qcoreapplication.cpp:1061
#43 0x00007fc4adab84fe in QCoreApplication::sendEvent(QObject*, QEvent*)
(receiver=receiver@entry=0x55f5b4449240, event=event@entry=0x7ffec3e09e60) at
kernel/qcoreapplication.cpp:1451
#44 0x00007fc4ae8eb2b3 in QWidgetPrivate::show_helper()
(this=this@entry=0x7fc3500339e0) at kernel/qwidget.cpp:8026
#45 0x00007fc4ae8ee3eb in QWidget::setVisible(bool)
(this=this@entry=0x55f5b4449240, visible=visible@entry=true) at
kernel/qwidget.cpp:8322
#46 0x00007fc4aea9f8bc in QDialog::setVisible(bool) (this=0x55f5b4449240,
visible=<optimized out>) at dialogs/qdialog.cpp:738
#47 0x00007fc4b00dae14 in Kontact::MainWindow::slotPreferences()
(this=0x55f5b3c41000) at ./src/mainwindow.cpp:909
#48 0x00007fc4adae7f3f in QtPrivate::QSlotObjectBase::call(QObject*, void**)
(a=0x7ffec3e0a140, r=0x55f5b3c41000, this=0x55f5b3d56760) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#49 0x00007fc4adae7f3f in QMetaObject::activate(QObject*, int, int, void**)
(sender=sender@entry=0x55f5b3db4230, signalOffset=<optimized out>,
local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffec3e0a140)
at kernel/qobject.cpp:3759
#50 0x00007fc4adae84f7 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) (sender=sender@entry=0x55f5b3db4230, m=m@entry=0x7fc4aef80820
<QAction::staticMetaObject>, local_signal_index=local_signal_index@entry=1,
argv=argv@entry=0x7ffec3e0a140) at kernel/qobject.cpp:3631
#51 0x00007fc4ae8a80f2 in QAction::triggered(bool)
(this=this@entry=0x55f5b3db4230, _t1=<optimized out>) at
.moc/moc_qaction.cpp:380
#52 0x00007fc4ae8aa70c in QAction::activate(QAction::ActionEvent)
(this=0x55f5b3db4230, event=<optimized out>) at kernel/qaction.cpp:1166
#53 0x00007fc4aea1f3ac in
QMenuPrivate::activateCausedStack(QVector<QPointer<QWidget> > const&, QAction*,
QAction::ActionEvent, bool) (this=this@entry=0x55f5b3d774b0, causedStack=...,
action=action@entry=0x55f5b3db4230, action_e=action_e@entry=QAction::Trigger,
self=self@entry=true) at widgets/qmenu.cpp:1371
#54 0x00007fc4aea2691b in QMenuPrivate::activateAction(QAction*,
QAction::ActionEvent, bool) (this=this@entry=0x55f5b3d774b0,
action=action@entry=0x55f5b3db4230, action_e=action_e@entry=QAction::Trigger,
self=self@entry=true) at widgets/qmenu.cpp:1448
#55 0x00007fc4aea27793 in QMenu::mouseReleaseEvent(QMouseEvent*)
(this=<optimized out>, e=0x7ffec3e0a820) at widgets/qmenu.cpp:2940
#56 0x00007fc4ae8ee838 in QWidget::event(QEvent*)
(this=this@entry=0x55f5b3d4e460, event=event@entry=0x7ffec3e0a820) at
kernel/qwidget.cpp:9268
#57 0x00007fc4aea29abb in QMenu::event(QEvent*) (this=0x55f5b3d4e460,
e=0x7ffec3e0a820) at widgets/qmenu.cpp:3062
#58 0x00007fc4ae8ae83c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=this@entry=0x55f5b3822e80, receiver=receiver@entry=0x55f5b3d4e460,
e=e@entry=0x7ffec3e0a820) at kernel/qapplication.cpp:3752
#59 0x00007fc4ae8b6ca8 in QApplication::notify(QObject*, QEvent*)
(this=<optimized out>, receiver=0x55f5b3d4e460, e=0x7ffec3e0a820) at
kernel/qapplication.cpp:3213
#60 0x00007fc4adab8328 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x55f5b3d4e460, event=0x7ffec3e0a820) at
kernel/qcoreapplication.cpp:1061
#61 0x00007fc4adab850e in QCoreApplication::sendSpontaneousEvent(QObject*,
QEvent*) (receiver=receiver@entry=0x55f5b3d4e460,
event=event@entry=0x7ffec3e0a820) at kernel/qcoreapplication.cpp:1463
#62 0x00007fc4ae8b529f in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool)
(receiver=receiver@entry=0x55f5b3d4e460, event=event@entry=0x7ffec3e0a820,
alienWidget=0x0, alienWidget@entry=0x55f5b3d4e460, nativeWidget=0x55f5b3d4e460,
buttonDown=buttonDown@entry=0x7fc4aefaf8b0 <qt_button_down>,
lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at
kernel/qapplication.cpp:2699
#63 0x00007fc4ae90979d in QWidgetWindow::handleMouseEvent(QMouseEvent*)
(this=this@entry=0x55f5b3fdb050, event=event@entry=0x7ffec3e0acb0) at
kernel/qwidgetwindow.cpp:558
#64 0x00007fc4ae90c34a in QWidgetWindow::event(QEvent*) (this=0x55f5b3fdb050,
event=0x7ffec3e0acb0) at kernel/qwidgetwindow.cpp:281
#65 0x00007fc4ae8ae83c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=this@entry=0x55f5b3822e80, receiver=receiver@entry=0x55f5b3fdb050,
e=e@entry=0x7ffec3e0acb0) at kernel/qapplication.cpp:3752
#66 0x00007fc4ae8b5dd0 in QApplication::notify(QObject*, QEvent*)
(this=0x7ffec3e0b180, receiver=0x55f5b3fdb050, e=0x7ffec3e0acb0) at
kernel/qapplication.cpp:3499
#67 0x00007fc4adab8328 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x55f5b3fdb050, event=0x7ffec3e0acb0) at
kernel/qcoreapplication.cpp:1061
#68 0x00007fc4adab850e in QCoreApplication::sendSpontaneousEvent(QObject*,
QEvent*) (receiver=receiver@entry=0x55f5b3fdb050,
event=event@entry=0x7ffec3e0acb0) at kernel/qcoreapplication.cpp:1463
#69 0x00007fc4ae08052b in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
(e=0x55f5b45e3080) at kernel/qguiapplication.cpp:2102
#70 0x00007fc4ae081695 in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
(e=e@entry=0x55f5b45e3080) at kernel/qguiapplication.cpp:1837
#71 0x00007fc4ae05a14b in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1068
#72 0x00007fc48291f30a in xcbSourceDispatch(GSource*, GSourceFunc, gpointer)
(source=<optimized out>) at qxcbeventdispatcher.cpp:105
#73 0x00007fc4a69f0387 in g_main_context_dispatch () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#74 0x00007fc4a69f05c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#75 0x00007fc4a69f064c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#76 0x00007fc4adb1513f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x55f5b38bd980, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#77 0x00007fc4adab664a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7ffec3e0b050, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:225
#78 0x00007fc4adabf800 in QCoreApplication::exec() () at
kernel/qcoreapplication.cpp:1364
#79 0x000055f5b1b3a4c5 in main(int, char**) (argc=<optimized out>,
argv=<optimized out>) at ./src/main.cpp:229

Reported using DrKonqi

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