Bug 402525

Summary: KMail crashed on exit
Product: [Applications] kmail2 Reporter: Dennis Schridde <heri+kde>
Component: generalAssignee: kdepim bugs <kdepim-bugs>
Status: RESOLVED MOVED    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Dennis Schridde 2018-12-24 11:17:47 UTC 
Application: kmail (5.9.3)

Qt Version: 5.11.1
Frameworks Version: 5.52.0
Operating System: Linux 4.19.10-300.fc29.x86_64 x86_64
Distribution (Platform): Fedora RPMs

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

1. Open KMail
2. Press check mail button
3. Wait
4. Go through folders and look at some unread messages in the preview pane
5. Quit KMail
6. Get a DrKonqi notification about it crashing

The crash can be reproduced sometimes.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f59753ddf40 (LWP 6687))]

Thread 34 (Thread 0x7f583ffff700 (LWP 7912)):
#0  0x00007f5984efbb28 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fcceb57 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd081a in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fcd0902 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcd56c1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fcd69bf in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 33 (Thread 0x7f5929ffb700 (LWP 7911)):
#0  0x00007f5984efbb28 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fcceb57 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd081a in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fcd0902 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcd56c1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fcd6ba1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 32 (Thread 0x7f592affd700 (LWP 7680)):
#0  0x00007f5984efbb28 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fcceb57 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd081a in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fcd0902 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcd56c1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fcd6ba1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 31 (Thread 0x7f58c7fff700 (LWP 7679)):
#0  0x00007f5984efbb28 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fcceb57 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd081a in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fcd0902 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcd56c1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fcd6ba1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 30 (Thread 0x7f58c6ffd700 (LWP 7345)):
#0  0x00007f5984efbb28 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fcceb57 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd081a in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fcd0902 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcd56c1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fcd6ba1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 29 (Thread 0x7f58c77fe700 (LWP 7328)):
#0  0x00007f5984efb73c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f5978122f5a in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007f5978122fc5 in  () at /lib64/libQt5Script.so.5
#3  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#4  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 28 (Thread 0x7f5908ff9700 (LWP 6792)):
#0  0x00007f5985f26f84 in read () at /lib64/libc.so.6
#1  0x00007f597abc2aa0 in  () at /lib64/libglib-2.0.so.0
#2  0x00007f597ab7c09b in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007f597ab7c550 in  () at /lib64/libglib-2.0.so.0
#4  0x00007f597ab7c6d0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007f59865da82b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f58c0019780, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f598658917b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f5908ff8660, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#7  0x00007f59863f1046 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#8  0x00007f59863fa4bb in QThreadPrivate::start(void*) (arg=0x55fb562443e0) at thread/qthread_unix.cpp:367
#9  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#10 0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 27 (Thread 0x7f59097fa700 (LWP 6791)):
#0  0x00007f59865da770 in postEventSourcePrepare(GSource*, gint*) (s=0x7f58d8010420, timeout=0x7f59097f9484) at kernel/qeventdispatcher_glib.cpp:263
#1  0x00007f597ab7bae9 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007f597ab7c4db in  () at /lib64/libglib-2.0.so.0
#3  0x00007f597ab7c6d0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f59865da82b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f58d800bfc0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f598658917b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f59097f9660, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007f59863f1046 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007f59863fa4bb in QThreadPrivate::start(void*) (arg=0x55fb56243790) at thread/qthread_unix.cpp:367
#8  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#9  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 26 (Thread 0x7f5909ffb700 (LWP 6790)):
#0  0x00007f597abc3ebd in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x00007f597ab7b95b in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007f597ab7c4db in  () at /lib64/libglib-2.0.so.0
#3  0x00007f597ab7c6d0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f59865da82b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55fb5929f4c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f598658917b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f5909ffa660, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007f59863f1046 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007f59863fa4bb in QThreadPrivate::start(void*) (arg=0x55fb5679a660) at thread/qthread_unix.cpp:367
#8  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#9  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 25 (Thread 0x7f590a7fc700 (LWP 6789)):
#0  0x00007f5985f26f84 in read () at /lib64/libc.so.6
#1  0x00007f597abc2aa0 in  () at /lib64/libglib-2.0.so.0
#2  0x00007f597ab7c09b in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007f597ab7c550 in  () at /lib64/libglib-2.0.so.0
#4  0x00007f597ab7c6d0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007f59865da82b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f58c0000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f598658917b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f590a7fb660, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#7  0x00007f59863f1046 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#8  0x00007f59863fa4bb in QThreadPrivate::start(void*) (arg=0x55fb5671eb70) at thread/qthread_unix.cpp:367
#9  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#10 0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 24 (Thread 0x7f590affd700 (LWP 6768)):
#0  0x00007f5975f55790 in pa_queue_pop () at /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#1  0x00007f5975f5418e in do_write () at /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#2  0x00007f5975f550ed in do_pstream_read_write () at /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#3  0x00007f5975f554ad in srb_callback () at /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#4  0x00007f5975f55d3a in srbchannel_rwloop () at /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#5  0x00007f5977c05fd8 in pa_mainloop_dispatch () at /lib64/libpulse.so.0
#6  0x00007f5977c062b0 in pa_mainloop_iterate () at /lib64/libpulse.so.0
#7  0x00007f5977c06350 in pa_mainloop_run () at /lib64/libpulse.so.0
#8  0x00007f5977c145bd in thread () at /lib64/libpulse.so.0
#9  0x00007f5975f6606c in internal_thread_func () at /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#10 0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#11 0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 23 (Thread 0x7f590b7fe700 (LWP 6767)):
#0  0x00007f5984efbb28 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fcceb57 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd081a in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fc9cbf0 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcc261b in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fce5554 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 22 (Thread 0x7f590bfff700 (LWP 6766)):
#0  0x00007f5985f2702f in write () at /lib64/libc.so.6
#1  0x00007f5985eb695d in _IO_file_write@@GLIBC_2.2.5 () at /lib64/libc.so.6
#2  0x00007f5985eb5ccf in new_do_write () at /lib64/libc.so.6
#3  0x00007f5985eb708e in __GI__IO_file_xsputn () at /lib64/libc.so.6
#4  0x00007f5985e8d2da in buffered_vfprintf () at /lib64/libc.so.6
#5  0x00007f5985e8a6f2 in vfprintf () at /lib64/libc.so.6
#6  0x00007f5985f45cba in __fprintf_chk () at /lib64/libc.so.6
#7  0x00007f5979f3de7f in event_logv_ () at /lib64/libevent-2.1.so.6
#8  0x00007f5979f3e048 in event_warn () at /lib64/libevent-2.1.so.6
#9  0x00007f5979f3fa40 in epoll_dispatch () at /lib64/libevent-2.1.so.6
#10 0x00007f5979f35598 in event_base_loop () at /lib64/libevent-2.1.so.6
#11 0x00007f597fca30f9 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#12 0x00007f597fcc261b in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#13 0x00007f597fce5554 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#14 0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#15 0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#16 0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 21 (Thread 0x7f5920ff9700 (LWP 6765)):
#0  0x00007f5984efb73c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fccea89 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f5980635ac8 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fce80d6 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#6  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 20 (Thread 0x7f59217fa700 (LWP 6764)):
#0  0x00007f5984efbb28 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fcceb57 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd081a in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fc9cbf0 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcc261b in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fce5554 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7f5921ffb700 (LWP 6763)):
#0  0x00007f5984efb73c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fccea89 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd0828 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fcd08bf in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcd56d8 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fcd6ba1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7f59227fc700 (LWP 6762)):
#0  0x00007f5985f369d7 in epoll_wait () at /lib64/libc.so.6
#1  0x00007f5979f3f8b9 in epoll_dispatch () at /lib64/libevent-2.1.so.6
#2  0x00007f5979f35598 in event_base_loop () at /lib64/libevent-2.1.so.6
#3  0x00007f597fca3234 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcc261b in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597edd44ba in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597edd4967 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f597fce5688 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#8  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#9  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#10 0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7f5922ffd700 (LWP 6761)):
#0  0x00007f5984efb73c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fccea89 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd0828 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fcd08bf in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcd56d8 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fcd69bf in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7f59237fe700 (LWP 6760)):
#0  0x00007f5984efb73c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fccea89 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd0828 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fcd08bf in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcd56d8 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fcd6ba1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7f5923fff700 (LWP 6759)):
#0  0x00007f5984efb73c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fccea89 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd0828 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fcd08bf in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcd56d8 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fcd69bf in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7f5928ff9700 (LWP 6758)):
#0  0x00007f5984efb73c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fccea89 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd0828 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fcd08bf in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcd56d8 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fcd69bf in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f59297fa700 (LWP 6757)):
#0  0x00007f5984efb73c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fccea89 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd0828 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fcd08bf in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcd56d8 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fcd69bf in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f592a7fc700 (LWP 6755)):
#0  0x00007f5984efbb28 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fcceb57 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd081a in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fcd0902 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcd56c1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fcd6ba1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f592b7fe700 (LWP 6753)):
#0  0x00007f5984efbb28 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fcceb57 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd081a in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fcd0902 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcd56c1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fcd6ba1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f592bfff700 (LWP 6752)):
#0  0x00007f5984efbb28 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fcceb57 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd081a in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fcd0902 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcd56c1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fcd6ba1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f5940997700 (LWP 6751)):
#0  0x00007f5984efbb28 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fcceb57 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd081a in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fcd0902 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fcd56c1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fcd6ba1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#8  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f5941198700 (LWP 6750)):
#0  0x00007f597fccec28 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#1  0x00007f597fc9eda2 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fc9ee89 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fc9ef09 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fca069d in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fca30e2 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fcc261b in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f597fce5554 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#8  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#9  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#10 0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f5941999700 (LWP 6749)):
#0  0x00007f5984efb73c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f597fccea89 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#2  0x00007f597fcd0828 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#3  0x00007f597fcd08bf in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#4  0x00007f597fc9cbdf in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#5  0x00007f597fcc261b in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#6  0x00007f597fce5554 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#8  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#9  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f594219a700 (LWP 6748)):
#0  0x00007f5985f43dbc in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f5985f45c68 in __fprintf_chk () at /lib64/libc.so.6
#2  0x00007f5979f3de7f in event_logv_ () at /lib64/libevent-2.1.so.6
#3  0x00007f5979f3e048 in event_warn () at /lib64/libevent-2.1.so.6
#4  0x00007f5979f3fa40 in epoll_dispatch () at /lib64/libevent-2.1.so.6
#5  0x00007f5979f35598 in event_base_loop () at /lib64/libevent-2.1.so.6
#6  0x00007f597fca314d in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#7  0x00007f597fcc261b in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#8  0x00007f597fce5554 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#9  0x00007f597fce0fd1 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#10 0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#11 0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f595edee700 (LWP 6694)):
#0  0x00007f5985f26f84 in read () at /lib64/libc.so.6
#1  0x00007f597abc2aa0 in  () at /lib64/libglib-2.0.so.0
#2  0x00007f597ab7c09b in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007f597ab7c550 in  () at /lib64/libglib-2.0.so.0
#4  0x00007f597ab7c6d0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007f59865da82b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f594c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f598658917b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f595eded660, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#7  0x00007f59863f1046 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#8  0x00007f59863fa4bb in QThreadPrivate::start(void*) (arg=0x55fb55ff2b20) at thread/qthread_unix.cpp:367
#9  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#10 0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f595ffff700 (LWP 6691)):
#0  0x00007f597ab7bee8 in g_main_context_check () at /lib64/libglib-2.0.so.0
#1  0x00007f597ab7c550 in  () at /lib64/libglib-2.0.so.0
#2  0x00007f597ab7c6d0 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f59865da82b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f5954000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f598658917b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f595fffe630, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007f59863f1046 in QThread::exec() (this=this@entry=0x7f598757b060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007f59874fff89 in QDBusConnectionManager::run() (this=0x7f598757b060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#7  0x00007f59863fa4bb in QThreadPrivate::start(void*) (arg=0x7f598757b060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:367
#8  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#9  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f596623d700 (LWP 6690)):
#0  0x00007f5984efb73c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f5966ef4b93 in  () at /usr/lib64/dri/i965_dri.so
#2  0x00007f5966ef48eb in  () at /usr/lib64/dri/i965_dri.so
#3  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#4  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f59681ea700 (LWP 6689)):
#0  0x00007f5985f2b421 in poll () at /lib64/libc.so.6
#1  0x00007f597aafa39f in  () at /lib64/libxcb.so.1
#2  0x00007f597aafc01a in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f59682d1da9 in QXcbEventReader::run() (this=0x55fb55bbcac0) at qxcbconnection.h:409
#4  0x00007f59863fa4bb in QThreadPrivate::start(void*) (arg=0x55fb55bbcac0) at thread/qthread_unix.cpp:367
#5  0x00007f5984ef558e in start_thread () at /lib64/libpthread.so.0
#6  0x00007f5985f366a3 in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f59753ddf40 (LWP 6687)):
[KCrash Handler]
#6  0x000055fb563a89f0 in  ()
#7  0x00007f597f0c9495 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#8  0x00007f597e8c69a5 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#9  0x00007f598050dfbd in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#10 0x00007f5980546c59 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#11 0x00007f598054673e in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#12 0x00007f597fc7ee78 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#13 0x00007f597fc9faba in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#14 0x00007f597fca056f in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#15 0x00007f597fca06ea in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#16 0x00007f597e71a239 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#17 0x00007f597e71a355 in  () at /usr/lib64/qt5-qtwebengine-freeworld/libQt5WebEngineCore.so.5
#18 0x00007f598658c4aa in qt_call_post_routines() () at kernel/qcoreapplication.cpp:357
#19 0x00007f5986e7899a in QApplication::~QApplication() (this=0x7fff6a66a200, __in_chrg=<optimized out>) at kernel/qapplication.cpp:794
#20 0x000055fb5445d78a in KMailApplication::~KMailApplication() (this=0x7fff6a66a200, __in_chrg=<optimized out>) at /usr/src/debug/kmail-18.08.3-1.fc29.x86_64/src/main.cpp:42
#21 0x000055fb5445d78a in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kmail-18.08.3-1.fc29.x86_64/src/main.cpp:127
[Inferior 1 (process 6687) detached]

Reported using DrKonqi
Comment 1 Christoph Feck 2018-12-27 19:47:23 UTC 
Already reported as bug 401394.