Bug 394838

Summary:	kontact crash on exit
Product:	[Applications] kontact	Reporter:	pub
Component:	general	Assignee:	kdepim bugs <kdepim-bugs>
Status:	RESOLVED WORKSFORME
Severity:	crash	CC:	ali.sherif10, forenkram
Priority:	NOR	Keywords:	drkonqi
Version:	unspecified
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	New crash information added by DrKonqi

Description pub 2018-05-29 19:35:21 UTC

Application: kontact (5.7.3)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-22-generic x86_64
Distribution: Ubuntu 18.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:
I had just quit the application, I did nothing special before I quit

The crash can be reproduced sometimes.

-- 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 0x7f4c0a1a2080 (LWP 9278))]

Thread 30 (Thread 0x7f4a8cf3f700 (LWP 12037)):
#0  0x00007f4c0641bed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f4a8cf3e7e0, expected=0, futex_word=0x7f4bb8004530) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f4c0641bed9 in __pthread_cond_wait_common (abstime=0x7f4a8cf3e880, mutex=0x7f4bb80044e0, cond=0x7f4bb8004508) at pthread_cond_wait.c:533
#2  0x00007f4c0641bed9 in __pthread_cond_timedwait (cond=0x7f4bb8004508, mutex=0x7f4bb80044e0, abstime=0x7f4a8cf3e880) at pthread_cond_wait.c:667
#3  0x00007f4bf76f8652 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4bf76ce799 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4bf76cecfb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c064156db in start_thread (arg=0x7f4a8cf3f700) at pthread_create.c:463
#8  0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7f4bbe7fc700 (LWP 12036)):
#0  0x00007f4c0641bed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f4bbe7fb7e0, expected=0, futex_word=0x7f4bb8004530) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f4c0641bed9 in __pthread_cond_wait_common (abstime=0x7f4bbe7fb880, mutex=0x7f4bb80044e0, cond=0x7f4bb8004508) at pthread_cond_wait.c:533
#2  0x00007f4c0641bed9 in __pthread_cond_timedwait (cond=0x7f4bb8004508, mutex=0x7f4bb80044e0, abstime=0x7f4bbe7fb880) at pthread_cond_wait.c:667
#3  0x00007f4bf76f8652 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4bf76ce799 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4bf76cecfb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c064156db in start_thread (arg=0x7f4bbe7fc700) at pthread_create.c:463
#8  0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7f4bbeffd700 (LWP 11576)):
#0  0x00007f4c074ab67e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f4c0064f998 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4c0065036b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4c0065054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4c074ab90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4c074509ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4c0726f22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4c0727416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4c064156db in start_thread (arg=0x7f4bbeffd700) at pthread_create.c:463
#9  0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7f4aa93b8700 (LWP 11334)):
#0  0x00007f4c06945bf9 in __GI___poll (fds=0x7f4aa0004be0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4c00650439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4c0065054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4c074ab90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f4c074509ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4c0726f22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4c0727416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4c064156db in start_thread (arg=0x7f4aa93b8700) at pthread_create.c:463
#8  0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7f4ab0bad700 (LWP 9358)):
#0  0x00007f4c06945bf9 in __GI___poll (fds=0x7f4aa4001cb0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4c00650439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4c0065054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4c074ab90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f4c074509ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4c0726f22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4c0727416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4c064156db in start_thread (arg=0x7f4ab0bad700) at pthread_create.c:463
#8  0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7f4ab13ae700 (LWP 9350)):
#0  0x00007f4c0641b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5606159d57ec) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f4c0641b9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5606159d5798, cond=0x5606159d57c0) at pthread_cond_wait.c:502
#2  0x00007f4c0641b9f3 in __pthread_cond_wait (cond=0x5606159d57c0, mutex=0x5606159d5798) at pthread_cond_wait.c:655
#3  0x00007f4bf76c9c95 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4bf76ca177 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4bf76caf11 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c064156db in start_thread (arg=0x7f4ab13ae700) at pthread_create.c:463
#8  0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7f4ac49f0700 (LWP 9325)):
#0  0x00007f4c0641b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560615e88fa0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f4c0641b9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x560615e88f50, cond=0x560615e88f78) at pthread_cond_wait.c:502
#2  0x00007f4c0641b9f3 in __pthread_cond_wait (cond=0x560615e88f78, mutex=0x560615e88f50) at pthread_cond_wait.c:655
#3  0x00007f4c0727559b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f4c0726dc0b in QSemaphore::acquire(int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4ac59de80c in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/texttospeech/libqttexttospeech_flite.so
#6  0x00007f4c0727416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4c064156db in start_thread (arg=0x7f4ac49f0700) at pthread_create.c:463
#8  0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7f4acf7fe700 (LWP 9312)):
#0  0x00007f4c069410b4 in __GI___libc_read (fd=69, buf=0x7f4acf7fd810, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f4c00694960 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4c0064ff27 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4c006503e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4c0065054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4c074ab90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4c074509ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4c0726f22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4c0727416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f4c064156db in start_thread (arg=0x7f4acf7fe700) at pthread_create.c:463
#10 0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7f4ad53df700 (LWP 9310)):
#0  0x00007f4c069410b4 in __GI___libc_read (fd=66, buf=0x7f4ad53de810, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f4c00694960 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4c0064ff27 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4c006503e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4c0065054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4c074ab90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4c074509ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4c0726f22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4c0727416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f4c064156db in start_thread (arg=0x7f4ad53df700) at pthread_create.c:463
#10 0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7f4b79ffb700 (LWP 9308)):
#0  0x00007f4c0641b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f4bf14e7fb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f4c0641b9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f4bf14e7f68, cond=0x7f4bf14e7f90) at pthread_cond_wait.c:502
#2  0x00007f4c0641b9f3 in __pthread_cond_wait (cond=0x7f4bf14e7f90, mutex=0x7f4bf14e7f68) at pthread_cond_wait.c:655
#3  0x00007f4bf11f15f4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007f4bf11f1639 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007f4c064156db in start_thread (arg=0x7f4b79ffb700) at pthread_create.c:463
#6  0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f4b7a7fc700 (LWP 9306)):
#0  0x00007f4c0641b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5606159d57ec) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f4c0641b9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5606159d5798, cond=0x5606159d57c0) at pthread_cond_wait.c:502
#2  0x00007f4c0641b9f3 in __pthread_cond_wait (cond=0x5606159d57c0, mutex=0x5606159d5798) at pthread_cond_wait.c:655
#3  0x00007f4bf76c9c95 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4bf76ca177 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4bf76caf11 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c064156db in start_thread (arg=0x7f4b7a7fc700) at pthread_create.c:463
#8  0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f4b7affd700 (LWP 9305)):
#0  0x00007f4c069616ac in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f4c06963474 in ___fprintf_chk (fp=0x7f4c06c1e8b0 <_IO_stdfile_2_lock>, flag=1, format=0x7f4befdf56a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f4befddd9ad in event_logv_ () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f4befdddb44 in event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007f4befddf46c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007f4befdd5114 in event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007f4bf769aab9 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4bf7696da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4bf76b377b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4bf76cb4d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f4c064156db in start_thread (arg=0x7f4b7affd700) at pthread_create.c:463
#12 0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f4b7b7fe700 (LWP 9304)):
#0  0x00007f4c0641b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f4b7b7fd738) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f4c0641b9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f4b7b7fd6e8, cond=0x7f4b7b7fd710) at pthread_cond_wait.c:502
#2  0x00007f4c0641b9f3 in __pthread_cond_wait (cond=0x7f4b7b7fd710, mutex=0x7f4b7b7fd6e8) at pthread_cond_wait.c:655
#3  0x00007f4bf76bf999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4bf76bf9c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4bf769a4db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4bf7696da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4bf76b377b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4bf76cb4d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f4c064156db in start_thread (arg=0x7f4b7b7fe700) at pthread_create.c:463
#11 0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f4b7ffff700 (LWP 9303)):
#0  0x00007f4c06945bf9 in __GI___poll (fds=0x7f4b74007030, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4bd3de2451 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007f4bd3dd3e10 in pa_mainloop_poll () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f4bd3dd44a0 in pa_mainloop_iterate () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f4bd3dd4530 in pa_mainloop_run () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f4bd3de2399 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f4bd397f2a8 in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#7  0x00007f4c064156db in start_thread (arg=0x7f4b7ffff700) at pthread_create.c:463
#8  0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f4b9cff9700 (LWP 9302)):
#0  0x00007f4c0641bed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f4b9cff85d0, expected=0, futex_word=0x7f4b9cff8758) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f4c0641bed9 in __pthread_cond_wait_common (abstime=0x7f4b9cff8670, mutex=0x7f4b9cff8708, cond=0x7f4b9cff8730) at pthread_cond_wait.c:533
#2  0x00007f4c0641bed9 in __pthread_cond_timedwait (cond=0x7f4b9cff8730, mutex=0x7f4b9cff8708, abstime=0x7f4b9cff8670) at pthread_cond_wait.c:667
#3  0x00007f4bf76f8652 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4bf76bf91e in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4bf769a52b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4bf7696da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4bf76b377b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4bf76cb4d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f4c064156db in start_thread (arg=0x7f4b9cff9700) at pthread_create.c:463
#11 0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f4b9d7fa700 (LWP 9301)):
#0  0x00007f4c0641b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5606159e1f88) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f4c0641b9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5606159e1ec8, cond=0x5606159e1f60) at pthread_cond_wait.c:502
#2  0x00007f4c0641b9f3 in __pthread_cond_wait (cond=0x5606159e1f60, mutex=0x5606159e1ec8) at pthread_cond_wait.c:655
#3  0x00007f4bf7e51060 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4bf76caf11 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4c064156db in start_thread (arg=0x7f4b9d7fa700) at pthread_create.c:463
#7  0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f4b9dffb700 (LWP 9300)):
#0  0x00007f4c0641b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5606159d57e8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f4c0641b9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5606159d5798, cond=0x5606159d57c0) at pthread_cond_wait.c:502
#2  0x00007f4c0641b9f3 in __pthread_cond_wait (cond=0x5606159d57c0, mutex=0x5606159d5798) at pthread_cond_wait.c:655
#3  0x00007f4bf76c9c95 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4bf76ca177 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4bf76caf11 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4c064156db in start_thread (arg=0x7f4b9dffb700) at pthread_create.c:463
#8  0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f4b9e7fc700 (LWP 9299)):
#0  0x00007f4c0641b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f4b9e7fb738) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f4c0641b9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f4b9e7fb6e8, cond=0x7f4b9e7fb710) at pthread_cond_wait.c:502
#2  0x00007f4c0641b9f3 in __pthread_cond_wait (cond=0x7f4b9e7fb710, mutex=0x7f4b9e7fb6e8) at pthread_cond_wait.c:655
#3  0x00007f4bf76bf999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4bf76bf9c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4bf769a4db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4bf7696da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4bf76b377b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4bf76cb4d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f4c064156db in start_thread (arg=0x7f4b9e7fc700) at pthread_create.c:463
#11 0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f4b9effd700 (LWP 9298)):
#0  0x00007f4c069616ac in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f4c06963474 in ___fprintf_chk (fp=0x7f4c06c1e8b0 <_IO_stdfile_2_lock>, flag=1, format=0x7f4befdf56a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f4befddd9ad in event_logv_ () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f4befdddb44 in event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007f4befddf46c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007f4befdd5114 in event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007f4bf769aab9 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4bf7696da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4bf76b377b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4bf6f51978 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f4bf6f51f2b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f4bf76cb588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f4c064156db in start_thread (arg=0x7f4b9effd700) at pthread_create.c:463
#14 0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f4b9f7fe700 (LWP 9297)):
#0  0x00007f4c0641bed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f4b9f7fd1f0, expected=0, futex_word=0x7f4b9f7fd378) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f4c0641bed9 in __pthread_cond_wait_common (abstime=0x7f4b9f7fd290, mutex=0x7f4b9f7fd328, cond=0x7f4b9f7fd350) at pthread_cond_wait.c:533
#2  0x00007f4c0641bed9 in __pthread_cond_timedwait (cond=0x7f4b9f7fd350, mutex=0x7f4b9f7fd328, abstime=0x7f4b9f7fd290) at pthread_cond_wait.c:667
#3  0x00007f4bf76f8652 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4bf76bf91e in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4bf769a52b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4bf7696da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4bf76b377b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4bf6f518c8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4bf6f51f1b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f4bf76cb588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f4c064156db in start_thread (arg=0x7f4b9f7fe700) at pthread_create.c:463
#13 0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f4b9ffff700 (LWP 9296)):
#0  0x00007f4c0641b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f4b9fffe358) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f4c0641b9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f4b9fffe308, cond=0x7f4b9fffe330) at pthread_cond_wait.c:502
#2  0x00007f4c0641b9f3 in __pthread_cond_wait (cond=0x7f4b9fffe330, mutex=0x7f4b9fffe308) at pthread_cond_wait.c:655
#3  0x00007f4bf76bf999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4bf76bf9c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4bf769a4db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4bf7696da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4bf76b377b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4bf6f51818 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4bf6f51f0b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f4bf76cb588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f4c064156db in start_thread (arg=0x7f4b9ffff700) at pthread_create.c:463
#13 0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f4bbcff9700 (LWP 9295)):
#0  0x00007f4c0641b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f4bbcff8358) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f4c0641b9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f4bbcff8308, cond=0x7f4bbcff8330) at pthread_cond_wait.c:502
#2  0x00007f4c0641b9f3 in __pthread_cond_wait (cond=0x7f4bbcff8330, mutex=0x7f4bbcff8308) at pthread_cond_wait.c:655
#3  0x00007f4bf76bf999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4bf76bf9c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4bf769a4db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4bf7696da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4bf76b377b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4bf6f51768 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4bf6f51efb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f4bf76cb588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f4c064156db in start_thread (arg=0x7f4bbcff9700) at pthread_create.c:463
#13 0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f4bbd7fa700 (LWP 9294)):
#0  0x00007f4c069616ac in __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007f4c06963474 in ___fprintf_chk (fp=0x7f4c06c1e8b0 <_IO_stdfile_2_lock>, flag=1, format=0x7f4befdf56a8 "[%s] %s\n") at fprintf_chk.c:30
#2  0x00007f4befddd9ad in event_logv_ () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#3  0x00007f4befdddb44 in event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#4  0x00007f4befddf46c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#5  0x00007f4befdd5114 in event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#6  0x00007f4bf769aab9 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4bf7696da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4bf76b377b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4bf6f516b8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f4bf6f51eeb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f4bf76cb588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f4c064156db in start_thread (arg=0x7f4bbd7fa700) at pthread_create.c:463
#14 0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f4bbdffb700 (LWP 9293)):
#0  0x00007f4c0641b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f4bbdffa358) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f4c0641b9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f4bbdffa308, cond=0x7f4bbdffa330) at pthread_cond_wait.c:502
#2  0x00007f4c0641b9f3 in __pthread_cond_wait (cond=0x7f4bbdffa330, mutex=0x7f4bbdffa308) at pthread_cond_wait.c:655
#3  0x00007f4bf76bf999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4bf76bf9c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4bf769a4db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4bf7696da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4bf76b377b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4bf6f51608 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4bf6f51edb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f4bf76cb588 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#11 0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f4c064156db in start_thread (arg=0x7f4bbdffb700) at pthread_create.c:463
#13 0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f4bbf7fe700 (LWP 9290)):
#0  0x00007f4c0641b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f4bbf7fd738) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f4c0641b9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f4bbf7fd6e8, cond=0x7f4bbf7fd710) at pthread_cond_wait.c:502
#2  0x00007f4c0641b9f3 in __pthread_cond_wait (cond=0x7f4bbf7fd710, mutex=0x7f4bbf7fd6e8) at pthread_cond_wait.c:655
#3  0x00007f4bf76bf999 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#4  0x00007f4bf76bf9c7 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#5  0x00007f4bf769a4db in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#6  0x00007f4bf7696da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#7  0x00007f4bf76b377b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#8  0x00007f4bf76cb4d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#9  0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#10 0x00007f4c064156db in start_thread (arg=0x7f4bbf7fe700) at pthread_create.c:463
#11 0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f4bbffff700 (LWP 9289)):
#0  0x00007f4c06941187 in __GI___libc_write (fd=2, buf=0x7f4bbfffbac0, nbytes=39) at ../sysdeps/unix/sysv/linux/write.c:27
#1  0x00007f4c068bc1bd in _IO_new_file_write (f=0x7f4c06c1d680 <_IO_2_1_stderr_>, data=0x7f4bbfffbac0, n=39) at fileops.c:1203
#2  0x00007f4c068bcb2f in new_do_write (to_do=<optimized out>, data=0x7f4bbfffbac0 "[warn] epoll_wait: Bad file descriptor\n", fp=0x7f4c06c1d680 <_IO_2_1_stderr_>) at fileops.c:457
#3  0x00007f4c068bcb2f in _IO_new_file_xsputn (f=0x7f4c06c1d680 <_IO_2_1_stderr_>, data=<optimized out>, n=39) at fileops.c:1277
#4  0x00007f4c0688f707 in buffered_vfprintf (s=s@entry=0x7f4c06c1d680 <_IO_2_1_stderr_>, format=format@entry=0x7f4befdf56a8 "[%s] %s\n", args=args@entry=0x7f4bbfffe080) at vfprintf.c:2350
#5  0x00007f4c0688c726 in _IO_vfprintf_internal (s=s@entry=0x7f4c06c1d680 <_IO_2_1_stderr_>, format=0x7f4befdf56a8 "[%s] %s\n", ap=ap@entry=0x7f4bbfffe080) at vfprintf.c:1301
#6  0x00007f4c069634c6 in ___fprintf_chk (fp=0x7f4c06c1d680 <_IO_2_1_stderr_>, flag=1, format=<optimized out>) at fprintf_chk.c:35
#7  0x00007f4befddd9ad in event_logv_ () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#8  0x00007f4befdddb44 in event_warn () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#9  0x00007f4befddf46c in  () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#10 0x00007f4befdd5114 in event_base_loop () at /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6
#11 0x00007f4bf769ab0d in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#12 0x00007f4bf7696da8 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#13 0x00007f4bf76b377b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#14 0x00007f4bf76cb4d6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#15 0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#16 0x00007f4c064156db in start_thread (arg=0x7f4bbffff700) at pthread_create.c:463
#17 0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f4bccfb3700 (LWP 9288)):
#0  0x00007f4c069156c2 in __GI___waitpid (pid=9284, stat_loc=0x0, options=0) at ../sysdeps/unix/sysv/linux/waitpid.c:30
#1  0x00007f4bf76af4be in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#2  0x00007f4bf76c75eb in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#3  0x00007f4c064156db in start_thread (arg=0x7f4bccfb3700) at pthread_create.c:463
#4  0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f4bcf148700 (LWP 9281)):
#0  0x00007f4c06945bf9 in __GI___poll (fds=0x7f4bc801b340, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4c00650439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4c0065054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4c074ab90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f4c074509ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4c0726f22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4c05796d45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f4c0727416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4c064156db in start_thread (arg=0x7f4bcf148700) at pthread_create.c:463
#9  0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f4bdab68700 (LWP 9280)):
#0  0x00007f4c06945bf9 in __GI___poll (fds=0x7f4bdab67928, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4c01f0a747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f4c01f0c36a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f4bdc8632a9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f4c0727416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4c064156db in start_thread (arg=0x7f4bdab68700) at pthread_create.c:463
#6  0x00007f4c0695288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f4c0a1a2080 (LWP 9278)):
[KCrash Handler]
#6  0x00007f4b5df3c388 in KMReaderMainWin::~KMReaderMainWin() () at /usr/lib/x86_64-linux-gnu/libkmailprivate.so.5
#7  0x00007f4b5df3c449 in KMReaderMainWin::~KMReaderMainWin() () at /usr/lib/x86_64-linux-gnu/libkmailprivate.so.5
#8  0x00007f4c07482140 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f4c0820f743 in QWidget::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f4c08322c4b in QMainWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f4c09316b87 in KMainWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#12 0x00007f4c0935b9e5 in KXmlGuiWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#13 0x00007f4c081d082c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f4c081d80f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f4c074529a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f4c0745511d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f4bfdedcc9d in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x00007f4bfdedcfd0 in QQuickRenderControl::~QQuickRenderControl() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007f4bfe493fa3 in  () at /usr/lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5
#20 0x00007f4bfe4925fb in  () at /usr/lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5
#21 0x00007f4bfe492679 in  () at /usr/lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5
#22 0x00007f4c07488a13 in QObject::~QObject() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f4c0820add6 in QWidget::~QWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007f4c04e81931 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineWidgets.so.5
#25 0x00007f4bf6d0b28a in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#26 0x00007f4bf6d0b3f9 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#27 0x00007f4bf71be27f in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#28 0x00007f4bf71b3002 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#29 0x00007f4bf700cef9 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#30 0x00007f4bf7039b1f in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#31 0x00007f4bf703a109 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#32 0x00007f4bf704031d in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#33 0x00007f4bf700f8a1 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#34 0x00007f4bf700a91a in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#35 0x00007f4bf7282cf6 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#36 0x00007f4bf7282fb9 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#37 0x00007f4bf6d26c9e in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#38 0x00007f4bf6d26f5a in QtWebEngineCore::WebContentsAdapter::~WebContentsAdapter() () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5
#39 0x00007f4c04e71e22 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineWidgets.so.5
#40 0x00007f4c04e71e79 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineWidgets.so.5
#41 0x00007f4c04e6c573 in QWebEnginePage::~QWebEnginePage() () at /usr/lib/x86_64-linux-gnu/libQt5WebEngineWidgets.so.5
#42 0x00007f4c099dd4b7 in  () at /usr/lib/x86_64-linux-gnu/libkontactprivate.so.5
#43 0x00007f4c0747f19b in QObjectPrivate::deleteChildren() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#44 0x00007f4c0820ad4c in QWidget::~QWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#45 0x00007f4c099dd641 in  () at /usr/lib/x86_64-linux-gnu/libkontactprivate.so.5
#46 0x00007f4c0747f19b in QObjectPrivate::deleteChildren() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#47 0x00007f4c0820ad4c in QWidget::~QWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#48 0x00007f4c0820af89 in QWidget::~QWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#49 0x00007f4c0747f19b in QObjectPrivate::deleteChildren() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#50 0x00007f4c0820ad4c in QWidget::~QWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#51 0x00007f4c0837a379 in QStackedWidget::~QStackedWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#52 0x00007f4c0747f19b in QObjectPrivate::deleteChildren() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#53 0x00007f4c0820ad4c in QWidget::~QWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#54 0x00007f4c08379639 in QSplitter::~QSplitter() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#55 0x00007f4c0747f19b in QObjectPrivate::deleteChildren() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#56 0x00007f4c0820ad4c in QWidget::~QWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#57 0x00007f4c0820af89 in QWidget::~QWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#58 0x00007f4c0747f19b in QObjectPrivate::deleteChildren() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#59 0x00007f4c0820ad4c in QWidget::~QWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#60 0x00007f4c0931473d in KMainWindow::~KMainWindow() () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#61 0x00007f4c099e2b8e in Kontact::MainWindow::~MainWindow() () at /usr/lib/x86_64-linux-gnu/libkontactprivate.so.5
#62 0x00007f4c099e2ce9 in Kontact::MainWindow::~MainWindow() () at /usr/lib/x86_64-linux-gnu/libkontactprivate.so.5
#63 0x00007f4c07482140 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#64 0x00007f4c0820f743 in QWidget::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#65 0x00007f4c08322c4b in QMainWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#66 0x00007f4c09316b87 in KMainWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#67 0x00007f4c0935b9e5 in KXmlGuiWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#68 0x00007f4c081d082c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#69 0x00007f4c081d80f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#70 0x00007f4c074529a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#71 0x00007f4c0745511d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#72 0x00007f4c074ac2c3 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#73 0x00007f4c00650287 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#74 0x00007f4c006504c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#75 0x00007f4c0065054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#76 0x00007f4c074ab8ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#77 0x00007f4c074509ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#78 0x00007f4c07459a84 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#79 0x000056061441548d in  ()
#80 0x00007f4c06852b97 in __libc_start_main (main=0x560614414630, argc=1, argv=0x7fff29fe1558, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff29fe1548) at ../csu/libc-start.c:310
#81 0x0000560614415aea in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 378315.

Possible duplicates by query: bug 387542, bug 387340.

Reported using DrKonqi

Comment 1 forenkram 2018-12-16 18:22:43 UTC

Created attachment 116950 [details]
New crash information added by DrKonqi

kontact (5.10.0) using Qt 5.12.0

The machine was idleing before after I had stoppeld listening to some music. 
I just closed the application.

-- Backtrace (Reduced):
#6  0x00007f230d35b8df in KMReaderMainWin::~KMReaderMainWin() () from /usr/lib/libkmailprivate.so.5
#7  0x00007f230d35b9aa in KMReaderMainWin::~KMReaderMainWin() () from /usr/lib/libkmailprivate.so.5
#8  0x00007f237d150b81 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#9  0x00007f237db2ce8c in QWidget::event(QEvent*) () from /usr/lib/libQt5Widgets.so.5
#10 0x00007f237dc393c5 in QMainWindow::event(QEvent*) () from /usr/lib/libQt5Widgets.so.5

Comment 2 Christoph Feck 2018-12-20 15:43:35 UTC

*** Bug 401502 has been marked as a duplicate of this bug. ***

Comment 3 Justin Zobel 2021-01-12 02:03:28 UTC

Thank you for the crash report.

As it has been a while since this was reported, can you please test and confirm if this issue is still occurring or if this bug report can be marked as resolved.

I have set the bug status to "needsinfo" pending your response, please change back to "reported" or "resolved/worksforme" when you respond, thank you.

Comment 4 forenkram 2021-01-12 10:00:38 UTC

Hey Justin, 
on a up-to-date Archlinux installation, i.e. 

Système d'exploitation : Arch Linux
Version de KDE Plasma : 5.20.5
Version de KDE Frameworks : 5.78.0
Version de Qt : 5.15.2
Version de noyau : 5.10.6-arch1-1

everything seems to work again and it has been a while since I experienced crashing with Contact. So probably the issue has been resolved. 

Thanks for looking into this, though. 
Cheers
David