Application: kontact (5.13.3 (19.12.3))

Qt Version: 5.12.8
Frameworks Version: 5.68.0
Operating System: Linux 5.4.0-29-generic x86_64
Windowing system: X11
Distribution: Ubuntu 20.04 LTS

-- Information about the crash:
- What I was doing when the application crashed: I was attempting to close out the software. I was also installing software via the Discover app while doing this. Firefox was also open and in the background	

- Unusual behavior I noticed: I've noticed that hitting the "x" in the upper right does NOT close out the software. I have to manually select "File/Quit" (or hold down Ctrl-Q) to get the software to close. The "x" doesn't appear to do anything? It does not minimize or in any way dismiss the window.

-- 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 0x7f9971250f00 (LWP 47912))]

Thread 24 (Thread 0x7f99527fc700 (LWP 50912)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f99527fb4a0, clockid=<optimized out>, expected=0, futex_word=0x7f99527fb5e8) at ../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7f99527fb4a0, clockid=<optimized out>, mutex=0x7f99527fb598, cond=0x7f99527fb5c0) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7f99527fb5c0, mutex=0x7f99527fb598, abstime=0x7f99527fb4a0) at pthread_cond_wait.c:656
#3  0x00007f997dc7fb2e in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f997dc8051f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f997dc80615 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f997dc41da6 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f997dc44c48 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f997dc44ef8 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f997dc82b63 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7f98cbfff700 (LWP 50900)):
#0  0x00007f996c2b7934 in pa_read () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.99.so
#1  0x00007f996c339416 in pa_mainloop_prepare () from /lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007f996c339eb4 in pa_mainloop_iterate () from /lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f996c339f70 in pa_mainloop_run () from /lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f996c34811d in ?? () from /lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f996c2e657c in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.99.so
#6  0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7  0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7f992dffb700 (LWP 50613)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f992dffa4a0, clockid=<optimized out>, expected=0, futex_word=0x7f992dffa5e8) at ../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7f992dffa4a0, clockid=<optimized out>, mutex=0x7f992dffa598, cond=0x7f992dffa5c0) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7f992dffa5c0, mutex=0x7f992dffa598, abstime=0x7f992dffa4a0) at pthread_cond_wait.c:656
#3  0x00007f997dc7fb2e in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f997dc8051f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f997dc80615 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f997dc41da6 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f997dc44c48 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f997dc44ef8 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f997dc82b63 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7f98d5911700 (LWP 49119)):
#0  __GI___errno_location () at errno-loc.c:25
#1  0x00007f9982d441b5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9982d442e3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9984c9d583 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9984c444db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9984a7c785 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9984a7d9d2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f98e989f700 (LWP 48075)):
#0  0x00007f9982d43a47 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9982d44152 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9982d442e3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9984c9d583 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9984c444db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9984a7c785 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9984a7d9d2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f98ea0a0700 (LWP 48072)):
#0  0x00007f9982d4208c in g_source_ref () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f9982d42168 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9982d43aff in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9982d44152 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9982d442e3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9984c9d583 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9984c444db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9984a7c785 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f9984a7d9d2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f98eacfb700 (LWP 48060)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f9984a7fdd1 in QSemaphore::acquire(int) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f98eb30c72c in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/texttospeech/libqttexttospeech_flite.so
#3  0x00007f9984a7d9d2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#5  0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f98f8c3b700 (LWP 48048)):
#0  0x00007f9984c9dcd3 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f9982d43be1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9982d44152 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9982d442e3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9984c9d583 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9984c444db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9984a7c785 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9984a7d9d2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f98f9cba700 (LWP 48046)):
#0  __GI___clock_gettime (clock_id=1, tp=0x7f98f9cb9480) at ../sysdeps/unix/sysv/linux/clock_gettime.c:38
#1  0x00007f9984c9ce45 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f9984c9b6dd in QTimerInfoList::updateCurrentTime() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f9984c9dd25 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9982d43be1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9982d44152 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f9982d442e3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f9984c9d583 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f9984c444db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9984a7c785 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f9984a7d9d2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f98fbfff700 (LWP 48034)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f98fbffe5f8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f98fbffe5a8, cond=0x7f98fbffe5d0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f98fbffe5d0, mutex=0x7f98fbffe5a8) at pthread_cond_wait.c:638
#3  0x00007f997dc7fa5e in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f997dc80530 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f997dc805d3 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f997dc41db8 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f997dc44c48 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f997dc44fb8 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f997dc82b63 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f992cff9700 (LWP 48033)):
#0  __lll_lock_wait_private (futex=0x7f99847bd4b0 <_IO_stdfile_2_lock>) at ./lowlevellock.c:35
#1  0x00007f998464c1f6 in buffered_vfprintf (s=s@entry=0x7f99847bb5c0 <_IO_2_1_stderr_>, format=format@entry=0x7f9978a20258 "[%s] %s\n", args=args@entry=0x7f992cff7ef0, mode_flags=mode_flags@entry=2) at vfprintf-internal.c:2381
#2  0x00007f9984648ea4 in __vfprintf_internal (s=0x7f99847bb5c0 <_IO_2_1_stderr_>, format=0x7f9978a20258 "[%s] %s\n", ap=ap@entry=0x7f992cff7ef0, mode_flags=2) at vfprintf-internal.c:1346
#3  0x00007f9984700023 in ___fprintf_chk (fp=<optimized out>, flag=<optimized out>, format=<optimized out>) at fprintf_chk.c:33
#4  0x00007f9978a06b36 in event_logv_ () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#5  0x00007f9978a06d09 in event_warn () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#6  0x00007f9978a08768 in ?? () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#7  0x00007f99789fe625 in event_base_loop () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#8  0x00007f997dc86318 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f997dc1fe9f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f997dc4a7e1 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f997dc82b63 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f992e7fc700 (LWP 48030)):
#0  0x00007f996c2d63f4 in pa_pstream_unref () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.99.so
#1  0x00007f996c2d6952 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.99.so
#2  0x00007f996c2d71ca in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.99.so
#3  0x00007f996c339ba3 in pa_mainloop_dispatch () from /lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f996c339ed2 in pa_mainloop_iterate () from /lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f996c339f70 in pa_mainloop_run () from /lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f996c34811d in ?? () from /lib/x86_64-linux-gnu/libpulse.so.0
#7  0x00007f996c2e657c in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-13.99.so
#8  0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f992effd700 (LWP 48029)):
#0  __lll_lock_wait_private (futex=0x7f99847bd4b0 <_IO_stdfile_2_lock>) at ./lowlevellock.c:35
#1  0x00007f998464c1f6 in buffered_vfprintf (s=s@entry=0x7f99847bb5c0 <_IO_2_1_stderr_>, format=format@entry=0x7f9978a20258 "[%s] %s\n", args=args@entry=0x7f992effbef0, mode_flags=mode_flags@entry=2) at vfprintf-internal.c:2381
#2  0x00007f9984648ea4 in __vfprintf_internal (s=0x7f99847bb5c0 <_IO_2_1_stderr_>, format=0x7f9978a20258 "[%s] %s\n", ap=ap@entry=0x7f992effbef0, mode_flags=2) at vfprintf-internal.c:1346
#3  0x00007f9984700023 in ___fprintf_chk (fp=<optimized out>, flag=<optimized out>, format=<optimized out>) at fprintf_chk.c:33
#4  0x00007f9978a06b36 in event_logv_ () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#5  0x00007f9978a06d09 in event_warn () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#6  0x00007f9978a08768 in ?? () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#7  0x00007f99789fe625 in event_base_loop () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#8  0x00007f997dc8636a in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f997dc1fe9f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f997dc4a7e1 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f997dc82b63 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f992f7fe700 (LWP 48028)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f992f7fc808) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55a81f2ac218, cond=0x7f992f7fc7e0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f992f7fc7e0, mutex=0x55a81f2ac218) at pthread_cond_wait.c:638
#3  0x00007f9983712df0 in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#4  0x00007f998371461f in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#5  0x00007f9983714796 in xcb_wait_for_reply64 () from /lib/x86_64-linux-gnu/libxcb.so.1
#6  0x00007f9983ae7d38 in _XReply () from /lib/x86_64-linux-gnu/libX11.so.6
#7  0x00007f996f4f4a57 in ?? () from /lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#8  0x00007f996f4f3229 in ?? () from /lib/x86_64-linux-gnu/libGLX_nvidia.so.0
#9  0x00007f997abfdec2 in ?? () from /lib/x86_64-linux-gnu/libGLX.so.0
#10 0x00007f997abfe467 in ?? () from /lib/x86_64-linux-gnu/libGLX.so.0
#11 0x00007f997abffc58 in ?? () from /lib/x86_64-linux-gnu/libGLX.so.0
#12 0x00007f997e31e3cd in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f997e30fc2c in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007f997e52986b in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007f998055790c in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#16 0x00007f99805580c7 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#17 0x00007f9980563456 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#18 0x00007f998055f108 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#19 0x00007f998055f2c6 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#20 0x00007f998055f6bc in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#21 0x00007f998055fcd1 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#22 0x00007f997dbddfc0 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#23 0x00007f997dbfeae1 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#24 0x00007f997dbff803 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#25 0x00007f997dbff97d in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#26 0x00007f997dbfd499 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#27 0x00007f997dc1fe9f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#28 0x00007f997dc4a7e1 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#29 0x00007f997dc82b63 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#30 0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#31 0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f992ffff700 (LWP 48027)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f992fffe460, clockid=<optimized out>, expected=0, futex_word=0x7f992fffe5a8) at ../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7f992fffe460, clockid=<optimized out>, mutex=0x7f992fffe558, cond=0x7f992fffe580) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7f992fffe580, mutex=0x7f992fffe558, abstime=0x7f992fffe460) at pthread_cond_wait.c:656
#3  0x00007f997dc7fb2e in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f997dc8051f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f997dbfd4f8 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f997dc1fe9f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f997dc4a7e1 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f997dc82b63 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f9950ff9700 (LWP 48026)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a81f7ffcc8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55a81f7ffc08, cond=0x55a81f7ffca0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55a81f7ffca0, mutex=0x55a81f7ffc08) at pthread_cond_wait.c:638
#3  0x00007f997dc7fa5e in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f997e46b458 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f997dc525e1 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f997dc82b63 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f99517fa700 (LWP 48025)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f99517f95f8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f99517f95a8, cond=0x7f99517f95d0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f99517f95d0, mutex=0x7f99517f95a8) at pthread_cond_wait.c:638
#3  0x00007f997dc7fa5e in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f997dc80530 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f997dc805d3 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f997dc41db8 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f997dc44c48 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f997dc44f58 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f997dc82b63 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f9952ffd700 (LWP 48022)):
#0  __lll_lock_wait_private (futex=0x7f99847bd4b0 <_IO_stdfile_2_lock>) at ./lowlevellock.c:35
#1  0x00007f998464c1f6 in buffered_vfprintf (s=s@entry=0x7f99847bb5c0 <_IO_2_1_stderr_>, format=format@entry=0x7f9978a20258 "[%s] %s\n", args=args@entry=0x7f9952ffbed0, mode_flags=mode_flags@entry=2) at vfprintf-internal.c:2381
#2  0x00007f9984648ea4 in __vfprintf_internal (s=0x7f99847bb5c0 <_IO_2_1_stderr_>, format=0x7f9978a20258 "[%s] %s\n", ap=ap@entry=0x7f9952ffbed0, mode_flags=2) at vfprintf-internal.c:1346
#3  0x00007f9984700023 in ___fprintf_chk (fp=<optimized out>, flag=<optimized out>, format=<optimized out>) at fprintf_chk.c:33
#4  0x00007f9978a06b36 in event_logv_ () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#5  0x00007f9978a06d09 in event_warn () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#6  0x00007f9978a08768 in ?? () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#7  0x00007f99789fe625 in event_base_loop () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#8  0x00007f997dc86318 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f997dc1fe9f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f997d5ae7b8 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f997dc4a7e1 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f997dc82b63 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#14 0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f9953fff700 (LWP 48020)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f9953ffe4a0, clockid=<optimized out>, expected=0, futex_word=0x7f9953ffe5e8) at ../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7f9953ffe4a0, clockid=<optimized out>, mutex=0x7f9953ffe598, cond=0x7f9953ffe5c0) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7f9953ffe5c0, mutex=0x7f9953ffe598, abstime=0x7f9953ffe4a0) at pthread_cond_wait.c:656
#3  0x00007f997dc7fb2e in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f997dc8051f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f997dc80615 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f997dc41da6 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f997dc44c48 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f997dc44ef8 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f997dc82b63 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f9964f68700 (LWP 48019)):
#0  0x00007f998461803c in __GI_getenv (name=name@entry=0x7f9984786432 "LANGUAGE") at getenv.c:39
#1  0x00007f998460805c in guess_category_value (categoryname=0x7f998476c493 <_nl_category_names+51> "LC_MESSAGES", category=5) at dcigettext.c:1565
#2  __dcigettext (domainname=0x7f9984786405 <_libc_intl_domainname> "libc", msgid1=0x7f99847868ac "Bad file descriptor", msgid2=msgid2@entry=0x0, plural=plural@entry=0, n=n@entry=0, category=category@entry=5) at dcigettext.c:647
#3  0x00007f9984606993 in __GI___dcgettext (domainname=<optimized out>, msgid=<optimized out>, category=category@entry=5) at dcgettext.c:47
#4  0x00007f9984671672 in __GI___strerror_r (errnum=errnum@entry=9, buf=buf@entry=0x0, buflen=buflen@entry=0) at _strerror.c:71
#5  0x00007f9984671593 in strerror (errnum=9) at strerror.c:31
#6  0x00007f9978a06cf6 in event_warn () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#7  0x00007f9978a08768 in ?? () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#8  0x00007f99789fe625 in event_base_loop () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#9  0x00007f997dc86318 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f997dc1fe9f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f997dc482f8 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f997dc4a7e1 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f997dc82b63 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#15 0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f9965f6a700 (LWP 48017)):
#0  __GI___libc_write (nbytes=39, buf=0x7f9965f66930, fd=2) at ../sysdeps/unix/sysv/linux/write.c:26
#1  __GI___libc_write (fd=2, buf=0x7f9965f66930, nbytes=39) at ../sysdeps/unix/sysv/linux/write.c:24
#2  0x00007f998466100d in _IO_new_file_write (f=0x7f99847bb5c0 <_IO_2_1_stderr_>, data=0x7f9965f66930, n=39) at fileops.c:1176
#3  0x00007f9984661928 in new_do_write (to_do=<optimized out>, data=0x7f9965f66930 "[warn] epoll_wait: Bad file descriptor\n", fp=0x7f99847bb5c0 <_IO_2_1_stderr_>) at libioP.h:948
#4  _IO_new_file_xsputn (n=39, data=<optimized out>, f=<optimized out>) at fileops.c:1255
#5  _IO_new_file_xsputn (f=0x7f99847bb5c0 <_IO_2_1_stderr_>, data=<optimized out>, n=39) at fileops.c:1197
#6  0x00007f998464c0d3 in buffered_vfprintf (s=s@entry=0x7f99847bb5c0 <_IO_2_1_stderr_>, format=format@entry=0x7f9978a20258 "[%s] %s\n", args=args@entry=0x7f9965f68ef0, mode_flags=mode_flags@entry=2) at ../libio/libioP.h:948
#7  0x00007f9984648ea4 in __vfprintf_internal (s=0x7f99847bb5c0 <_IO_2_1_stderr_>, format=0x7f9978a20258 "[%s] %s\n", ap=ap@entry=0x7f9965f68ef0, mode_flags=2) at vfprintf-internal.c:1346
#8  0x00007f9984700023 in ___fprintf_chk (fp=<optimized out>, flag=<optimized out>, format=<optimized out>) at fprintf_chk.c:33
#9  0x00007f9978a06b36 in event_logv_ () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#10 0x00007f9978a06d09 in event_warn () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#11 0x00007f9978a08768 in ?? () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#12 0x00007f99789fe625 in event_base_loop () from /lib/x86_64-linux-gnu/libevent-2.1.so.7
#13 0x00007f997dc86318 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007f997dc1fe9f in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007f997dc4a7e1 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#16 0x00007f997dc82b63 in ?? () from /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#17 0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#18 0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f996cff9700 (LWP 47918)):
#0  __GI___libc_read (nbytes=16, buf=0x7f996cff8460, fd=19) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=19, buf=0x7f996cff8460, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f9982d8c89f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9982d43cfe in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9982d44152 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9982d442e3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f9984c9d583 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9984c444db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f9984a7c785 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f99840a6efa in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007f9984a7d9d2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f9970632700 (LWP 47914)):
#0  0x00007f99846e496f in __GI___poll (fds=0x7f99706315a8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f9983712c1a in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f998371490a in xcb_wait_for_event () from /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f9970b9f298 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f9984a7d9d2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f99836dc609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f99846f1103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f9971250f00 (LWP 47912)):
[KCrash Handler]
#6  0x00007f98fae88e05 in KMReaderMainWin::~KMReaderMainWin() () from /lib/x86_64-linux-gnu/libkmailprivate.so.5
#7  0x00007f98fae88edd in KMReaderMainWin::~KMReaderMainWin() () from /lib/x86_64-linux-gnu/libkmailprivate.so.5
#8  0x00007f9984c71b74 in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f99856a025d in QWidget::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f99857b5148 in QMainWindow::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f9985d5e9ab in KMainWindow::event(QEvent*) () from /lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#12 0x00007f9985da95bb in KXmlGuiWindow::event(QEvent*) () from /lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#13 0x00007f998565da66 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f99856670f0 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f9984c4593a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f9984c485b8 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f9984c9df67 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f9982d43fbd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f9982d44240 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f9982d442e3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f9984c9d565 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f9984c444db in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f9984c4c246 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x000055a81d5e7cde in ?? ()
#25 0x00007f99845f60b3 in __libc_start_main (main=0x55a81d5e7160, argc=1, argv=0x7ffd1ecf4f18, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd1ecf4f08) at ../csu/libc-start.c:308
#26 0x000055a81d5e84fe in ?? ()
[Inferior 1 (process 47912) detached]

The reporter indicates this bug may be a duplicate of or related to bug 420669.

Possible duplicates by query: bug 421054, bug 420987, bug 420864, bug 420669, bug 420497.

Reported using DrKonqi