Application: kmail (5.12.0)
 (Compiled from sources)
Qt Version: 5.13.1
Frameworks Version: 5.62.0
Operating System: Linux 4.19.0-5-amd64 x86_64
Distribution: Debian GNU/Linux bullseye/sid

-- Information about the crash:
- What I was doing when the application crashed:

KMail crashes when clicking on an email containing a confirmation from EasyJet. This happened on two different matchines both with different versions of stable kdesrc-build with around KDE 19.08

The crash can be reproduced every time.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f7433e12cc0 (LWP 15784))]

Thread 25 (Thread 0x7f739df18700 (LWP 2641)):
#0  0x00007f7440652829 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7440607331 in g_main_context_query () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7440607b77 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7440607d1c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f744da2f90b in QEventDispatcherGlib::processEvents (this=0x7f73fc0077f0, flags=...) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f744d9ddca3 in QEventLoop::exec (this=this@entry=0x7f739df17900, flags=..., flags@entry=...) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:140
#6  0x00007f744d82e2a6 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:120
#7  0x00007f744d82f512 in QThreadPrivate::start (arg=0x55711017bb10) at /src/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:360
#8  0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7f739d717700 (LWP 2614)):
#0  futex_reltimed_wait_cancelable (private=0, reltime=0x7f739d7165f0, expected=0, futex_word=0x7f739d7167c8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f739d716690, mutex=0x7f739d716778, cond=0x7f739d7167a0) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f739d7167a0, mutex=0x7f739d716778, abstime=0x7f739d716690) at pthread_cond_wait.c:667
#3  0x00007f744664c466 in base::ConditionVariable::TimedWait () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:127
#4  0x00007f744664cdfd in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:230
#5  0x00007f744664cf92 in base::WaitableEvent::TimedWait () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:162
#6  0x00007f7446607f21 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:37
#7  0x00007f7446609494 in base::internal::SchedulerWorker::RunWorker () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:303
#8  0x00007f7446609b84 in base::internal::SchedulerWorker::RunPooledWorker () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:229
#9  0x00007f744664ea25 in ThreadFunc () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#10 0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7f739b713700 (LWP 2562)):
#0  futex_reltimed_wait_cancelable (private=0, reltime=0x7f739b7125f0, expected=0, futex_word=0x7f739b7127c8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f739b712690, mutex=0x7f739b712778, cond=0x7f739b7127a0) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f739b7127a0, mutex=0x7f739b712778, abstime=0x7f739b712690) at pthread_cond_wait.c:667
#3  0x00007f744664c466 in base::ConditionVariable::TimedWait () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:127
#4  0x00007f744664cdfd in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:230
#5  0x00007f744664cf92 in base::WaitableEvent::TimedWait () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:162
#6  0x00007f7446607f21 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:37
#7  0x00007f74466097df in base::internal::SchedulerWorker::RunWorker () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:331
#8  0x00007f7446609b84 in base::internal::SchedulerWorker::RunPooledWorker () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:229
#9  0x00007f744664ea25 in ThreadFunc () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#10 0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7f739bf14700 (LWP 1060)):
#0  futex_reltimed_wait_cancelable (private=0, reltime=0x7f739bf135f0, expected=0, futex_word=0x7f739bf137c8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f739bf13690, mutex=0x7f739bf13778, cond=0x7f739bf137a0) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f739bf137a0, mutex=0x7f739bf13778, abstime=0x7f739bf13690) at pthread_cond_wait.c:667
#3  0x00007f744664c466 in base::ConditionVariable::TimedWait () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:127
#4  0x00007f744664cdfd in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:230
#5  0x00007f744664cf92 in base::WaitableEvent::TimedWait () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:162
#6  0x00007f7446607f21 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:37
#7  0x00007f74466097df in base::internal::SchedulerWorker::RunWorker () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:331
#8  0x00007f7446609b84 in base::internal::SchedulerWorker::RunPooledWorker () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:229
#9  0x00007f744664ea25 in ThreadFunc () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#10 0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7f73e9ffb700 (LWP 27860)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:63
#1  0x00007f744d2f44e4 in ___fprintf_chk (fp=0x7f744d3a98b0 <_IO_stdfile_2_lock>, flag=1, format=0x7f743f044848 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f743f02ca5a in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f743f02cc34 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007f743f02e588 in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007f743f024329 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007f7446652f09 in base::MessagePumpLibevent::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_libevent.cc:214
#7  0x00007f74465dfa56 in base::RunLoop::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/run_loop.cc:150
#8  base::RunLoop::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/run_loop.cc:121
#9  0x00007f744661bf49 in base::Thread::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:251
#10 base::Thread::ThreadMain () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:333
#11 0x00007f744664ea25 in ThreadFunc () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#12 0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#13 0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f73ae4ac700 (LWP 16004)):
#0  0x00007f744d2da819 in __GI___poll (fds=0x7f73a4004e30, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f7440607bf6 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7440607d1c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f744da2f90b in QEventDispatcherGlib::processEvents (this=0x7f73a4000b20, flags=...) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f744d9ddca3 in QEventLoop::exec (this=this@entry=0x7f73ae4ab900, flags=..., flags@entry=...) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:140
#5  0x00007f744d82e2a6 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:120
#6  0x00007f744d82f512 in QThreadPrivate::start (arg=0x5571084625a0) at /src/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:360
#7  0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f73af2fe700 (LWP 15913)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7f73af2fd7d8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f73af2fd788, cond=0x7f73af2fd7b0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f73af2fd7b0, mutex=0x7f73af2fd788) at pthread_cond_wait.c:655
#3  0x00007f744664c36a in base::ConditionVariable::Wait () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:75
#4  0x00007f744664ce0c in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:232
#5  0x00007f744664cf4f in base::WaitableEvent::Wait () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:155
#6  0x00007f7446607ef5 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:35
#7  0x00007f74466097df in base::internal::SchedulerWorker::RunWorker () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:331
#8  0x00007f7446609bc4 in base::internal::SchedulerWorker::RunSharedWorker () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:241
#9  0x00007f744664ea25 in ThreadFunc () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#10 0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f73e8ed0700 (LWP 15884)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7f73e8ecf7d8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f73e8ecf788, cond=0x7f73e8ecf7b0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f73e8ecf7b0, mutex=0x7f73e8ecf788) at pthread_cond_wait.c:655
#3  0x00007f744664c36a in base::ConditionVariable::Wait () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:75
#4  0x00007f744664ce0c in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:232
#5  0x00007f744664cf4f in base::WaitableEvent::Wait () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:155
#6  0x00007f7446607ef5 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:35
#7  0x00007f74466097df in base::internal::SchedulerWorker::RunWorker () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:331
#8  0x00007f7446609c04 in base::internal::SchedulerWorker::RunDedicatedWorker () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:253
#9  0x00007f744664ea25 in ThreadFunc () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#10 0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f73e97fa700 (LWP 15883)):
#0  0x00007f744d2da819 in __GI___poll (fds=0x7f73bc007030, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f743b641101 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007f743b632920 in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f743b632f6e in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f743b633020 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f743b641049 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f74354534f8 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so
#7  0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f73ea7fc700 (LWP 15881)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7f73ea7fb728) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f73ea7fb6d8, cond=0x7f73ea7fb700) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f73ea7fb700, mutex=0x7f73ea7fb6d8) at pthread_cond_wait.c:655
#3  0x00007f744664c36a in base::ConditionVariable::Wait () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:75
#4  0x00007f744664ce0c in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:232
#5  0x00007f744664cf4f in base::WaitableEvent::Wait () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:155
#6  0x00007f74465bc6af in base::MessagePumpDefault::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_default.cc:58
#7  0x00007f74465dfa56 in base::RunLoop::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/run_loop.cc:150
#8  base::RunLoop::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/run_loop.cc:121
#9  0x00007f744661bf49 in base::Thread::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:251
#10 base::Thread::ThreadMain () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:333
#11 0x00007f744664ea25 in ThreadFunc () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#12 0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#13 0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f73eaffd700 (LWP 15880)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x557100d0c838) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x557100d0c778, cond=0x557100d0c810) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x557100d0c810, mutex=0x557100d0c778) at pthread_cond_wait.c:655
#3  0x00007f744664c36a in base::ConditionVariable::Wait () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:75
#4  0x00007f744717ed68 in cc::SingleThreadTaskGraphRunner::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/cc/raster/single_thread_task_graph_runner.cc:126
#5  0x00007f744661d6bf in base::SimpleThread::ThreadMain () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/simple_thread.cc:80
#6  0x00007f744664ea25 in ThreadFunc () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#7  0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f73eb7fe700 (LWP 15879)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:63
#1  0x00007f744d2f44e4 in ___fprintf_chk (fp=0x7f744d3a98b0 <_IO_stdfile_2_lock>, flag=1, format=0x7f743f044848 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f743f02ca5a in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f743f02cc34 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007f743f02e588 in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007f743f024329 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007f7446652f09 in base::MessagePumpLibevent::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_libevent.cc:214
#7  0x00007f74465dfa56 in base::RunLoop::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/run_loop.cc:150
#8  base::RunLoop::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/run_loop.cc:121
#9  0x00007f744661bf49 in base::Thread::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:251
#10 base::Thread::ThreadMain () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:333
#11 0x00007f744664ea25 in ThreadFunc () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#12 0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#13 0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f73ebfff700 (LWP 15878)):
#0  futex_reltimed_wait_cancelable (private=0, reltime=0x7f73ebffe570, expected=0, futex_word=0x7f73ebffe748) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f73ebffe610, mutex=0x7f73ebffe6f8, cond=0x7f73ebffe720) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f73ebffe720, mutex=0x7f73ebffe6f8, abstime=0x7f73ebffe610) at pthread_cond_wait.c:667
#3  0x00007f744664c466 in base::ConditionVariable::TimedWait () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:127
#4  0x00007f744664cdfd in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:230
#5  0x00007f74465bc6c0 in base::MessagePumpDefault::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_default.cc:64
#6  0x00007f74465dfa56 in base::RunLoop::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/run_loop.cc:150
#7  base::RunLoop::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/run_loop.cc:121
#8  0x00007f744661bf49 in base::Thread::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:251
#9  base::Thread::ThreadMain () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:333
#10 0x00007f744664ea25 in ThreadFunc () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#11 0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#12 0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f7400fdf700 (LWP 15877)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:63
#1  0x00007f744d2f44e4 in ___fprintf_chk (fp=0x7f744d3a98b0 <_IO_stdfile_2_lock>, flag=1, format=0x7f743f044848 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f743f02ca5a in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f743f02cc34 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007f743f02e588 in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007f743f024329 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007f744665302a in base::MessagePumpLibevent::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_libevent.cc:247
#7  0x00007f74465dfa56 in base::RunLoop::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/run_loop.cc:150
#8  base::RunLoop::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/run_loop.cc:121
#9  0x00007f7445d4cb44 in content::BrowserProcessSubThread::IOThreadRun () at ../../../../../qt5/qtwebengine/src/3rdparty/chromium/content/browser/browser_process_sub_thread.cc:174
#10 0x00007f744661c0b8 in base::Thread::ThreadMain () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:333
#11 0x00007f744664ea25 in ThreadFunc () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#12 0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#13 0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f7402fe3700 (LWP 15873)):
#0  0x00007f743f02c9c6 in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#1  0x00007f743f02cc34 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#2  0x00007f743f02e588 in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f743f024329 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007f7446652f09 in base::MessagePumpLibevent::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_libevent.cc:214
#5  0x00007f74465dfa56 in base::RunLoop::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/run_loop.cc:150
#6  base::RunLoop::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/run_loop.cc:121
#7  0x00007f744661bf49 in base::Thread::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:251
#8  base::Thread::ThreadMain () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:333
#9  0x00007f744664ea25 in ThreadFunc () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#10 0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f7415455700 (LWP 15869)):
#0  futex_reltimed_wait_cancelable (private=0, reltime=0x7f74154545f0, expected=0, futex_word=0x7f74154547c8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f7415454690, mutex=0x7f7415454778, cond=0x7f74154547a0) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f74154547a0, mutex=0x7f7415454778, abstime=0x7f7415454690) at pthread_cond_wait.c:667
#3  0x00007f744664c466 in base::ConditionVariable::TimedWait () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/condition_variable_posix.cc:127
#4  0x00007f744664cdfd in base::WaitableEvent::TimedWaitUntil () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:230
#5  0x00007f744664cf92 in base::WaitableEvent::TimedWait () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/synchronization/waitable_event_posix.cc:162
#6  0x00007f7446607f21 in base::internal::SchedulerWorker::Delegate::WaitForWork () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:37
#7  0x00007f74466097df in base::internal::SchedulerWorker::RunWorker () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:331
#8  0x00007f7446609b84 in base::internal::SchedulerWorker::RunPooledWorker () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/scheduler_worker.cc:229
#9  0x00007f744664ea25 in ThreadFunc () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#10 0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f7415c56700 (LWP 15868)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:63
#1  0x00007f744d2f44e4 in ___fprintf_chk (fp=0x7f744d3a98b0 <_IO_stdfile_2_lock>, flag=1, format=0x7f743f044848 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f743f02ca5a in event_logv_ () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f743f02cc34 in event_warn () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007f743f02e588 in ?? () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007f743f024329 in event_base_loop () from /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007f7446652f09 in base::MessagePumpLibevent::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/message_loop/message_pump_libevent.cc:214
#7  0x00007f74465dfa56 in base::RunLoop::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/run_loop.cc:150
#8  base::RunLoop::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/run_loop.cc:121
#9  0x00007f74466191d4 in base::internal::ServiceThread::Run () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/task/task_scheduler/service_thread.cc:61
#10 0x00007f744661c0b8 in base::Thread::ThreadMain () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/thread.cc:333
#11 0x00007f744664ea25 in ThreadFunc () at ./../../../../../qt5/qtwebengine/src/3rdparty/chromium/base/threading/platform_thread_posix.cc:81
#12 0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#13 0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f74171f1700 (LWP 15827)):
#0  0x00007f7440606c00 in g_main_context_acquire () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7440607ab5 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7440607d1c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f744da2f90b in QEventDispatcherGlib::processEvents (this=0x7f740c000b20, flags=...) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f744d9ddca3 in QEventLoop::exec (this=this@entry=0x7f74171f0900, flags=..., flags@entry=...) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:140
#5  0x00007f744d82e2a6 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:120
#6  0x00007f744d82f512 in QThreadPrivate::start (arg=0x557100b57770) at /src/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:360
#7  0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f7428d27700 (LWP 15809)):
#0  update_get_addr (ti=0x7f744dc95630) at ../elf/dl-tls.c:804
#1  0x00007f744fcd31f8 in __tls_get_addr () at ../sysdeps/x86_64/tls_get_addr.S:55
#2  0x00007f744d82e966 in get_thread_data () at /src/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:238
#3  QThreadData::current (createIfNecessary=createIfNecessary@entry=true) at /src/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:238
#4  0x00007f744da2ffd1 in postEventSourcePrepare (timeout=0x0, s=0x7f7410004b80) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:270
#5  postEventSourceCheck (source=0x7f7410004b80) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:270
#6  0x00007f74406075d1 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f7440607ba0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f7440607d1c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f744da2f90b in QEventDispatcherGlib::processEvents (this=0x7f7410000b20, flags=...) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:425
#10 0x00007f744d9ddca3 in QEventLoop::exec (this=this@entry=0x7f7428d26900, flags=..., flags@entry=...) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:140
#11 0x00007f744d82e2a6 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:120
#12 0x00007f744d82f512 in QThreadPrivate::start (arg=0x557100938940) at /src/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:360
#13 0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#14 0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f7429528700 (LWP 15805)):
#0  0x00007ffde17bd9f9 in ?? ()
#1  0x00007ffde17bdbfc in clock_gettime ()
#2  0x00007f744d2f2ff6 in __GI___clock_gettime (clock_id=clock_id@entry=1, tp=tp@entry=0x7f7429527680) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007f744da2f2c1 in qt_clock_gettime (ts=0x7f7429527680, clock=1) at /src/qt5/qtbase/src/corelib/kernel/qelapsedtimer_unix.cpp:111
#4  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at /src/qt5/qtbase/src/corelib/kernel/qelapsedtimer_unix.cpp:166
#5  qt_gettime () at /src/qt5/qtbase/src/corelib/kernel/qelapsedtimer_unix.cpp:175
#6  0x00007f744da2dcb9 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f741c004d20) at /src/qt5/qtbase/src/corelib/kernel/qtimerinfo_unix.cpp:91
#7  0x00007f744da2e1f5 in QTimerInfoList::timerWait (this=0x7f741c004d20, tm=...) at /src/qt5/qtbase/src/corelib/kernel/qtimerinfo_unix.cpp:388
#8  0x00007f744da2f68e in timerSourcePrepareHelper (timeout=0x7f7429527734, src=<optimized out>) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:162
#9  timerSourcePrepare (source=<optimized out>, timeout=0x7f7429527734) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:166
#10 0x00007f7440607129 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f7440607b2b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f7440607d1c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f744da2f90b in QEventDispatcherGlib::processEvents (this=0x7f741c000b20, flags=...) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:425
#14 0x00007f744d9ddca3 in QEventLoop::exec (this=this@entry=0x7f7429527900, flags=..., flags@entry=...) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:140
#15 0x00007f744d82e2a6 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:120
#16 0x00007f744d82f512 in QThreadPrivate::start (arg=0x5571009d54c0) at /src/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:360
#17 0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#18 0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f7429d29700 (LWP 15797)):
#0  __GI___libc_read (nbytes=16, buf=0x7f7429d286f0, fd=10) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=10, buf=0x7f7429d286f0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f744064e430 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f74406076cf in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7440607ba0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7440607d1c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f744da2f90b in QEventDispatcherGlib::processEvents (this=0x7f7418000b20, flags=...) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f744d9ddca3 in QEventLoop::exec (this=this@entry=0x7f7429d28900, flags=..., flags@entry=...) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:140
#8  0x00007f744d82e2a6 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:120
#9  0x00007f744d82f512 in QThreadPrivate::start (arg=0x55710098ba20) at /src/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:360
#10 0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f742af3a700 (LWP 15793)):
#0  0x00007f7440652829 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7440607135 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7440607b2b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7440607d1c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f744da2f90b in QEventDispatcherGlib::processEvents (this=0x7f7420000b20, flags=...) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f744d9ddca3 in QEventLoop::exec (this=this@entry=0x7f742af398d0, flags=..., flags@entry=...) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:140
#6  0x00007f744d82e2a6 in QThread::exec (this=this@entry=0x7f744ead5d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:120
#7  0x00007f744ea594d5 in QDBusConnectionManager::run (this=0x7f744ead5d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at /src/qt5/qtbase/src/dbus/qdbusconnection.cpp:178
#8  0x00007f744d82f512 in QThreadPrivate::start (arg=0x7f744ead5d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at /src/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:360
#9  0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f7430f8c700 (LWP 15792)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x5571005ba138) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5571005ba0e8, cond=0x5571005ba110) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5571005ba110, mutex=0x5571005ba0e8) at pthread_cond_wait.c:655
#3  0x00007f74314b897b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f74314b85a7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f7432fa2700 (LWP 15791)):
#0  0x00007f744d2da819 in __GI___poll (fds=0x7f7432fa17f8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f7440189cf7 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f744018b91a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f74336edc78 in QXcbEventQueue::run (this=0x55710057eeb0) at /src/qt5/qtbase/src/plugins/platforms/xcb/qxcbeventqueue.cpp:228
#4  0x00007f744d82f512 in QThreadPrivate::start (arg=0x55710057eeb0) at /src/qt5/qtbase/src/corelib/thread/qthread_unix.cpp:360
#5  0x00007f744bf25fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007f744d2e54cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f7433e12cc0 (LWP 15784)):
[KCrash Handler]
#6  std::__atomic_base<int>::operator++ (this=0x544d5200544d4c) at /usr/include/c++/8/bits/atomic_base.h:295
#7  QAtomicOps<int>::ref<int> (_q_value=...) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/thread/qatomic_cxx11.h:265
#8  QBasicAtomicInteger<int>::ref (this=0x544d5200544d4c) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/thread/qbasicatomic.h:114
#9  QJsonDocument::QJsonDocument (this=0x7ffde17747f0, other=...) at /src/qt5/qtbase/src/corelib/serialization/qjsondocument.cpp:137
#10 0x00007f744da2400c in v_construct_helper<QJsonDocument> (t=..., x=0x7ffde17747f0) at /usr/include/c++/8/new:169
#11 v_construct<QJsonDocument> (t=..., x=0x7ffde17747f0) at ../../include/QtCore/5.13.1/QtCore/private/../../../../../../../qt5/qtbase/src/corelib/kernel/qvariant_p.h:152
#12 v_construct<QJsonDocument> (copy=0x557106c5ccf8, x=0x7ffde17747f0) at ../../include/QtCore/5.13.1/QtCore/private/../../../../../../../qt5/qtbase/src/corelib/kernel/qvariant_p.h:160
#13 QVariantConstructor<(anonymous namespace)::CoreTypesFilter>::FilteredConstructor<QJsonDocument, true>::FilteredConstructor (this=<optimized out>, tc=<synthetic pointer>..., tc=<synthetic pointer>...) at ../../include/QtCore/5.13.1/QtCore/private/../../../../../../../qt5/qtbase/src/corelib/kernel/qvariant_p.h:351
#14 QVariantConstructor<(anonymous namespace)::CoreTypesFilter>::delegate<QJsonDocument> (this=<synthetic pointer>) at ../../include/QtCore/5.13.1/QtCore/private/../../../../../../../qt5/qtbase/src/corelib/kernel/qvariant_p.h:372
#15 QMetaTypeSwitcher::switcher<void, QVariantConstructor<(anonymous namespace)::CoreTypesFilter> > (data=0x0, type=<optimized out>, logic=<synthetic pointer>...) at ../../include/QtCore/5.13.1/QtCore/private/../../../../../../../qt5/qtbase/src/corelib/kernel/qmetatypeswitcher_p.h:74
#16 (anonymous namespace)::construct (x=x@entry=0x7ffde17747f0, copy=0x557106c5ccf8) at /src/qt5/qtbase/src/corelib/kernel/qvariant.cpp:121
#17 0x00007f744da1a359 in QVariant::QVariant (this=0x7ffde17747f0, p=...) at ../../include/QtCore/5.13.1/QtCore/private/../../../../../../../qt5/qtbase/src/corelib/kernel/qmetatype_p.h:68
#18 0x00007f73ad94fb9b in KItinerary::Reservation::reservationFor (this=0x7ffde1774ce0) at /src/kdesrc/kde/pim/kitinerary/src/datatypes/reservation.cpp:49
#19 0x00007f73ad952905 in KItinerary::Reservation::qt_static_metacall (_o=0x7ffde1774ce0, _c=QMetaObject::ReadProperty, _id=2, _a=0x7ffde17748e0) at /src/kdesrc/build/kde/pim/kitinerary/src/KPimItinerary_autogen/include/moc_reservation.cpp:106
#20 0x00007f744d9eaf35 in QMetaProperty::read (this=<optimized out>, object=0x7ffde1774ce0) at /src/qt5/qtbase/src/corelib/kernel/qmetaobject.cpp:3155
#21 0x00007f744d9eb1e9 in QMetaProperty::readOnGadget (this=<optimized out>, gadget=<optimized out>) at /src/qt5/qtbase/src/corelib/kernel/qmetaobject.cpp:3281
#22 0x00007f743f9a18e4 in Grantlee::MetaType::lookup(QVariant const&, QString const&) () from /opt/kde5/lib/libGrantlee_Templates.so.5
#23 0x00007f743f9bd0c9 in Grantlee::Variable::resolve(Grantlee::Context*) const () from /opt/kde5/lib/libGrantlee_Templates.so.5
#24 0x00007f743f99494e in Grantlee::FilterExpression::resolve(Grantlee::OutputStream*, Grantlee::Context*) const () from /opt/kde5/lib/libGrantlee_Templates.so.5
#25 0x00007f743f99510b in Grantlee::FilterExpression::resolve(Grantlee::Context*) const () from /opt/kde5/lib/libGrantlee_Templates.so.5
#26 0x00007f73ac639b8e in WithNode::render(Grantlee::OutputStream*, Grantlee::Context*) const () from /opt/kde5/lib/grantlee/5.1/grantlee_defaulttags.so
#27 0x00007f743f9a4442 in Grantlee::NodeList::render(Grantlee::OutputStream*, Grantlee::Context*) const () from /opt/kde5/lib/libGrantlee_Templates.so.5
#28 0x00007f73ac639bd0 in WithNode::render(Grantlee::OutputStream*, Grantlee::Context*) const () from /opt/kde5/lib/grantlee/5.1/grantlee_defaulttags.so
#29 0x00007f73ac6289c4 in ForNode::renderLoop(Grantlee::OutputStream*, Grantlee::Context*) const () from /opt/kde5/lib/grantlee/5.1/grantlee_defaulttags.so
#30 0x00007f73ac629452 in ForNode::render(Grantlee::OutputStream*, Grantlee::Context*) const () from /opt/kde5/lib/grantlee/5.1/grantlee_defaulttags.so
#31 0x00007f743f9a4442 in Grantlee::NodeList::render(Grantlee::OutputStream*, Grantlee::Context*) const () from /opt/kde5/lib/libGrantlee_Templates.so.5
#32 0x00007f743f9b4a2d in Grantlee::TemplateImpl::render(Grantlee::OutputStream*, Grantlee::Context*) const () from /opt/kde5/lib/libGrantlee_Templates.so.5
#33 0x00007f73e80ca1e5 in SemanticRenderer::render (this=0x55710905ec10, msgPart=..., htmlWriter=0x557100d7fc90, context=0x7f742001b840) at /src/kdesrc/kde/pim/kdepim-addons/plugins/messageviewer/bodypartformatter/semantic/semanticrenderer.cpp:213
#34 0x00007f744c72543b in MessageViewer::DefaultRendererPrivate::renderWithFactory (this=0x7f742001b840, mo=0x7f744be93be0 <MimeTreeParser::MessagePartList::staticMetaObject>, msgPart=..., htmlWriter=0x557100d7fc90) at /src/kdesrc/kde/pim/messagelib/messageviewer/src/messagepartthemes/default/defaultrenderer.cpp:861
#35 0x00007f744c7299ec in MessageViewer::RenderContext::renderWithFactory (this=0x7f742001b840, msgPart=..., writer=0x557100d7fc90) at /src/kdesrc/kde/pim/messagelib/messageviewer/src/messagepartthemes/default/messagepartrendererbase.h:60
#36 0x00007f744c725891 in MessageViewer::DefaultRendererPrivate::renderFactory (this=0x7f742001b840, msgPart=..., htmlWriter=0x557100d7fc90) at /src/kdesrc/kde/pim/messagelib/messageviewer/src/messagepartthemes/default/defaultrenderer.cpp:882
#37 0x00007f744c727246 in MessageViewer::DefaultRenderer::render (this=0x7ffde1775f70, msgPart=..., writer=0x557100d7fc90) at /src/kdesrc/kde/pim/messagelib/messageviewer/src/messagepartthemes/default/defaultrenderer.cpp:1172
#38 0x00007f744c754ba3 in MessageViewer::EmptySource::render (this=0x7ffde1776170, msgPart=..., showOnlyOneMimePart=false) at /src/kdesrc/kde/pim/messagelib/messageviewer/src/viewer/objecttreeemptysource.cpp:138
#39 0x00007f744be5c380 in MimeTreeParser::ObjectTreeParser::parseObjectTree (this=0x7ffde1776100, node=0x55710096b170, parseOnlySingleNode=false) at /src/kdesrc/kde/pim/messagelib/mimetreeparser/src/objecttreeparser.cpp:158
#40 0x00007f744c762a44 in MessageViewer::ViewerPrivate::parseContent (this=0x557100991280, content=0x55710096b170) at /src/kdesrc/kde/pim/messagelib/messageviewer/src/viewer/viewer_p.cpp:938
#41 0x00007f744c762455 in MessageViewer::ViewerPrivate::displayMessage (this=0x557100991280) at /src/kdesrc/kde/pim/messagelib/messageviewer/src/viewer/viewer_p.cpp:887
#42 0x00007f744c76debb in MessageViewer::ViewerPrivate::updateReaderWin (this=0x557100991280) at /src/kdesrc/kde/pim/messagelib/messageviewer/src/viewer/viewer_p.cpp:2246
#43 0x00007f744c7810da in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (MessageViewer::ViewerPrivate::*)()>::call(void (MessageViewer::ViewerPrivate::*)(), MessageViewer::ViewerPrivate*, void**) (f=(void (MessageViewer::ViewerPrivate::*)(class MessageViewer::ViewerPrivate * const)) 0x7f744c76dd40 <MessageViewer::ViewerPrivate::updateReaderWin()>, o=0x557100991280, arg=0x7ffde1776580) at /opt/qt-5.13/include/QtCore/qobjectdefs_impl.h:152
#44 0x00007f744c77fd63 in QtPrivate::FunctionPointer<void (MessageViewer::ViewerPrivate::*)()>::call<QtPrivate::List<>, void>(void (MessageViewer::ViewerPrivate::*)(), MessageViewer::ViewerPrivate*, void**) (f=(void (MessageViewer::ViewerPrivate::*)(class MessageViewer::ViewerPrivate * const)) 0x7f744c76dd40 <MessageViewer::ViewerPrivate::updateReaderWin()>, o=0x557100991280, arg=0x7ffde1776580) at /opt/qt-5.13/include/QtCore/qobjectdefs_impl.h:185
#45 0x00007f744c77cd8a in QtPrivate::QSlotObject<void (MessageViewer::ViewerPrivate::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) (which=1, this_=0x557100ecc6e0, r=0x557100991280, a=0x7ffde1776580, ret=0x0) at /opt/qt-5.13/include/QtCore/qobjectdefs_impl.h:414
#46 0x00007f744da07aab in QtPrivate::QSlotObjectBase::call (a=0x7ffde1776580, r=0x557100991280, this=0x557100ecc6e0) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/kernel/qobjectdefs_impl.h:394
#47 QMetaObject::activate (sender=0x5571009912f0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at /src/qt5/qtbase/src/corelib/kernel/qobject.cpp:3789
#48 0x00007f744da12ee7 in QTimer::timeout (this=<optimized out>, _t1=...) at .moc/moc_qtimer.cpp:205
#49 0x00007f744da0813b in QObject::event (this=0x5571009912f0, e=<optimized out>) at /src/qt5/qtbase/src/corelib/kernel/qobject.cpp:1241
#50 0x00007f744e39fea1 in QApplicationPrivate::notify_helper (this=this@entry=0x5571005610d0, receiver=receiver@entry=0x5571009912f0, e=e@entry=0x7ffde1776810) at /src/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3703
#51 0x00007f744e3a6e30 in QApplication::notify (this=0x7ffde1776be0, receiver=0x5571009912f0, e=0x7ffde1776810) at /src/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3449
#52 0x00007f744d9df018 in QCoreApplication::notifyInternal2 (receiver=0x5571009912f0, event=0x7ffde1776810) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/kernel/qobject.h:143
#53 0x00007f744da2edb4 in QTimerInfoList::activateTimers (this=0x5571005b3700) at /src/qt5/qtbase/src/corelib/kernel/qtimerinfo_unix.cpp:643
#54 0x00007f744da2f5ac in timerSourceDispatch (source=<optimized out>) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:183
#55 idleTimerSourceDispatch (source=<optimized out>) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:230
#56 0x00007f74406079ee in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#57 0x00007f7440607c88 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#58 0x00007f7440607d1c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#59 0x00007f744da2f8ee in QEventDispatcherGlib::processEvents (this=0x5571005c29a0, flags=...) at /src/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:423
#60 0x00007f744d9ddca3 in QEventLoop::exec (this=this@entry=0x7ffde1776a60, flags=..., flags@entry=...) at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:140
#61 0x00007f744d9e592e in QCoreApplication::exec () at ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qflags.h:120
#62 0x00005570febfe041 in main (argc=1, argv=0x7ffde1776d68) at /src/kdesrc/kde/pim/kmail/src/main.cpp:168
[Inferior 1 (process 15784) detached]

Reported using DrKonqi