[kmail2] [Bug 406154] New: kmail closes too early

bugzilla_noreply at kde.org bugzilla_noreply at kde.org
Tue Apr 2 16:21:19 BST 2019 

https://bugs.kde.org/show_bug.cgi?id=406154

            Bug ID: 406154
           Summary: kmail closes too early
           Product: kmail2
           Version: 5.10.3
          Platform: Compiled Sources
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: Kwanza.Pili at virginmedia.com
  Target Milestone: ---

Application: kmail (5.10.3)
 (Compiled from sources)
Qt Version: 5.12.2
Frameworks Version: 5.56.0
Operating System: Linux 4.19.23-1.1 x86_64
Distribution: "openSUSE Leap 15.0"

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

Every time I close kmail, I get this error "application terminated
unexpectedly" I think this is caused by some code deleting data too early (as
suggested by some QT developers).

The crash can be reproduced every time.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4bc7c6fc40 (LWP 27443))]

Thread 26 (Thread 0x7f4b10687700 (LWP 28142)):
#0  0x00007f4bf4e48609 in syscall () at /lib64/libc.so.6
#1  0x00007f4bf55659a4 in QSemaphore::acquire(int) () at
/opt/kde/lib64/libQt5Core.so.5
#2  0x00007f4bec058ae4 in  () at /opt/kde/lib64/libQt5Network.so.5
#3  0x00007f4bf5563723 in  () at /opt/kde/lib64/libQt5Core.so.5
#4  0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#5  0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 25 (Thread 0x7f4b92dc3700 (LWP 27933)):
#0  0x00007f4beaabfc7c in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f4bdab32ada in  () at /opt/kde/lib64/libQt5Script.so.5
#2  0x00007f4bdab32af9 in  () at /opt/kde/lib64/libQt5Script.so.5
#3  0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 24 (Thread 0x7f4b962a5700 (LWP 27869)):
#0  0x00007ffc77ab29fd in clock_gettime ()
#1  0x00007f4bf4e5af76 in clock_gettime () at /lib64/libc.so.6
#2  0x00007f4bf575a001 in  () at /opt/kde/lib64/libQt5Core.so.5
#3  0x00007f4bf57588e9 in QTimerInfoList::updateCurrentTime() () at
/opt/kde/lib64/libQt5Core.so.5
#4  0x00007f4bf5758e95 in QTimerInfoList::timerWait(timespec&) () at
/opt/kde/lib64/libQt5Core.so.5
#5  0x00007f4bf575a39e in  () at /opt/kde/lib64/libQt5Core.so.5
#6  0x00007f4be8456f41 in g_main_context_prepare () at
/usr/lib64/libglib-2.0.so.0
#7  0x00007f4be84578d3 in  () at /usr/lib64/libglib-2.0.so.0
#8  0x00007f4be8457aac in g_main_context_iteration () at
/usr/lib64/libglib-2.0.so.0
#9  0x00007f4bf575a5fb in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /opt/kde/lib64/libQt5Core.so.5
#10 0x00007f4bf5708d3b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/opt/kde/lib64/libQt5Core.so.5
#11 0x00007f4bf55624b6 in QThread::exec() () at /opt/kde/lib64/libQt5Core.so.5
#12 0x00007f4bf5563723 in  () at /opt/kde/lib64/libQt5Core.so.5
#13 0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#14 0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 23 (Thread 0x7f4b99c6e700 (LWP 27685)):
#0  0x00007f4beaac0046 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f4bdfe19d37 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#2  0x00007f4bdfe1a68a in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#3  0x00007f4bdfe1a772 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#4  0x00007f4bdfdd8111 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#5  0x00007f4bdfdda727 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#6  0x00007f4bdfddad14 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#7  0x00007f4bdfe1c891 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#8  0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 22 (Thread 0x7f4b9a46f700 (LWP 27676)):
#0  0x00007f4beaabfc7c in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f4bdfe19c69 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#2  0x00007f4bdfe1a698 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#3  0x00007f4bdfe1a72f in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#4  0x00007f4bdfdd8128 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#5  0x00007f4bdfddaa56 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#6  0x00007f4bdfddad94 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#7  0x00007f4bdfe1c891 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#8  0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 21 (Thread 0x7f4baa443700 (LWP 27630)):
#0  0x00007f4bf4e3f1f4 in read () at /lib64/libc.so.6
#1  0x00007f4bd15f5601 in pa_read () at
/usr/lib64/pulseaudio/libpulsecommon-12.2.so
#2  0x00007f4bd87280be in pa_mainloop_prepare () at /usr/lib64/libpulse.so.0
#3  0x00007f4bd8728ae0 in pa_mainloop_iterate () at /usr/lib64/libpulse.so.0
#4  0x00007f4bd8728ba0 in pa_mainloop_run () at /usr/lib64/libpulse.so.0
#5  0x00007f4bd8736606 in  () at /usr/lib64/libpulse.so.0
#6  0x00007f4bd1623908 in  () at /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#7  0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 20 (Thread 0x7f4baeeb9700 (LWP 27629)):
#0  0x00007f4bf4e3f297 in write () at /lib64/libc.so.6
#1  0x00007f4bf4dd176d in _IO_file_write@@GLIBC_2.2.5 () at /lib64/libc.so.6
#2  0x00007f4bf4dd0baf in new_do_write () at /lib64/libc.so.6
#3  0x00007f4bf4dd1e9e in __GI__IO_file_xsputn () at /lib64/libc.so.6
#4  0x00007f4bf4dbe8a2 in buffered_vfprintf () at /lib64/libc.so.6
#5  0x00007f4bf4dbbdc8 in __vfprintf_internal () at /lib64/libc.so.6
#6  0x00007f4bf4e5c151 in __fprintf_chk () at /lib64/libc.so.6
#7  0x00007f4bd651707d in event_logv_ () at /usr/lib64/libevent-2.1.so.6
#8  0x00007f4bd6517214 in event_warn () at /usr/lib64/libevent-2.1.so.6
#9  0x00007f4bd6518b3c in  () at /usr/lib64/libevent-2.1.so.6
#10 0x00007f4bd650e7e4 in event_base_loop () at /usr/lib64/libevent-2.1.so.6
#11 0x00007f4bdfe20349 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#12 0x00007f4bdfdb6cdb in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#13 0x00007f4bdfde9701 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#14 0x00007f4bdfe1c891 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#15 0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#16 0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7f4baf6ba700 (LWP 27628)):
#0  0x00007f4beaabfc7c in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f4bdfe19c69 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#2  0x00007f4bdfe1a698 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#3  0x00007f4bdfe1a72f in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#4  0x00007f4bdfd93dcf in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#5  0x00007f4bdfdb6cdb in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#6  0x00007f4bdfde9701 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#7  0x00007f4bdfe1c891 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#8  0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7f4bafebb700 (LWP 27627)):
#0  0x00007f4beaac0046 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f4bdfe19d37 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#2  0x00007f4bdfe1a68a in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#3  0x00007f4bdfd93de0 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#4  0x00007f4bdfdb6cdb in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#5  0x00007f4bdfde9701 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#6  0x00007f4bdfe1c891 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#7  0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7f4bb06bc700 (LWP 27626)):
#0  0x00007f4beaabfc7c in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f4bdfe19c69 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#2  0x00007f4be05e11b8 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#3  0x00007f4bdfdeacbf in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#4  0x00007f4bdfe1c891 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#5  0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7f4bb0ebd700 (LWP 27625)):
#0  0x00007f4beaabfc7c in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f4bdfe19c69 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#2  0x00007f4bdfe1a698 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#3  0x00007f4bdfe1a72f in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#4  0x00007f4bdfdd8128 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#5  0x00007f4bdfddaa56 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#6  0x00007f4bdfddad54 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#7  0x00007f4bdfe1c891 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#8  0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7f4bb16be700 (LWP 27621)):
#0  0x00007f4bf4d8b848 in _nl_make_l10nflist.localalias.0 () at
/lib64/libc.so.6
#1  0x00007f4bf4d89654 in _nl_find_domain () at /lib64/libc.so.6
#2  0x00007f4bf4d88fa7 in __dcigettext () at /lib64/libc.so.6
#3  0x00007f4bf4dddd1c in strerror_r () at /lib64/libc.so.6
#4  0x00007f4bf4dddc3f in strerror () at /lib64/libc.so.6
#5  0x00007f4bd6517201 in event_warn () at /usr/lib64/libevent-2.1.so.6
#6  0x00007f4bd6518b3c in  () at /usr/lib64/libevent-2.1.so.6
#7  0x00007f4bd650e7e4 in event_base_loop () at /usr/lib64/libevent-2.1.so.6
#8  0x00007f4bdfe20484 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#9  0x00007f4bdfdb6cdb in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#10 0x00007f4bdf76cfb4 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#11 0x00007f4bdfde9858 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#12 0x00007f4bdfe1c891 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#13 0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#14 0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7f4bb1ebf700 (LWP 27620)):
#0  0x00007f4beaac0046 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f4bdfe19d37 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#2  0x00007f4bdfe1a68a in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#3  0x00007f4bdfe1a772 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#4  0x00007f4bdfdd8111 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#5  0x00007f4bdfddaa56 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#6  0x00007f4bdfddad14 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#7  0x00007f4bdfe1c891 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#8  0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f4bb26c0700 (LWP 27619)):
#0  0x00007f4beaac0046 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f4bdfe19d37 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#2  0x00007f4bdfe1a68a in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#3  0x00007f4bdfe1a772 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#4  0x00007f4bdfdd8111 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#5  0x00007f4bdfddaa56 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#6  0x00007f4bdfddad14 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#7  0x00007f4bdfe1c891 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#8  0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f4bb2ec1700 (LWP 27618)):
#0  0x00007f4beaac0046 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f4bdfe19d37 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#2  0x00007f4bdfe1a68a in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#3  0x00007f4bdfe1a772 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#4  0x00007f4bdfdd8111 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#5  0x00007f4bdfddaa56 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#6  0x00007f4bdfddad14 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#7  0x00007f4bdfe1c891 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#8  0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f4bb36c2700 (LWP 27617)):
#0  0x00007f4beaac0046 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f4bdfe19d37 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#2  0x00007f4bdfe1a68a in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#3  0x00007f4bdfe1a772 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#4  0x00007f4bdfdd8111 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#5  0x00007f4bdfddaa56 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#6  0x00007f4bdfddad14 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#7  0x00007f4bdfe1c891 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#8  0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f4bb3ec3700 (LWP 27616)):
#0  0x00007f4bf4e5a69b in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f4bf4dbe845 in buffered_vfprintf () at /lib64/libc.so.6
#2  0x00007f4bf4dbbdc8 in __vfprintf_internal () at /lib64/libc.so.6
#3  0x00007f4bf4e5c151 in __fprintf_chk () at /lib64/libc.so.6
#4  0x00007f4bd651707d in event_logv_ () at /usr/lib64/libevent-2.1.so.6
#5  0x00007f4bd6517214 in event_warn () at /usr/lib64/libevent-2.1.so.6
#6  0x00007f4bd6518b3c in  () at /usr/lib64/libevent-2.1.so.6
#7  0x00007f4bd650e7e4 in event_base_loop () at /usr/lib64/libevent-2.1.so.6
#8  0x00007f4bdfe20484 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#9  0x00007f4bdfdb6cdb in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#10 0x00007f4bdfdde804 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#11 0x00007f4bdfde9858 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#12 0x00007f4bdfe1c891 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#13 0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#14 0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f4bb4ec5700 (LWP 27614)):
#0  0x00007f4bf4e5a69b in __lll_lock_wait_private () at /lib64/libc.so.6
#1  0x00007f4bf4dbe845 in buffered_vfprintf () at /lib64/libc.so.6
#2  0x00007f4bf4dbbdc8 in __vfprintf_internal () at /lib64/libc.so.6
#3  0x00007f4bf4e5c151 in __fprintf_chk () at /lib64/libc.so.6
#4  0x00007f4bd651707d in event_logv_ () at /usr/lib64/libevent-2.1.so.6
#5  0x00007f4bd6517214 in event_warn () at /usr/lib64/libevent-2.1.so.6
#6  0x00007f4bd6518b3c in  () at /usr/lib64/libevent-2.1.so.6
#7  0x00007f4bd650e7e4 in event_base_loop () at /usr/lib64/libevent-2.1.so.6
#8  0x00007f4bdfe20349 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#9  0x00007f4bdfdb6cdb in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#10 0x00007f4bdfde9701 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#11 0x00007f4bdfe1c891 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#12 0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#13 0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f4bb6a3f700 (LWP 27608)):
#0  0x00007f4bf4e48609 in syscall () at /lib64/libc.so.6
#1  0x00007f4bf55659a4 in QSemaphore::acquire(int) () at
/opt/kde/lib64/libQt5Core.so.5
#2  0x00007f4bb789907c in  () at
/opt/kde/lib64/qt5/plugins/texttospeech/libqttexttospeech_flite.so
#3  0x00007f4bf5563723 in  () at /opt/kde/lib64/libQt5Core.so.5
#4  0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#5  0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f4bb8752700 (LWP 27593)):
#0  0x00007f4bf4e3f1f4 in read () at /lib64/libc.so.6
#1  0x00007f4be849cb80 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f4be84574cf in g_main_context_check () at
/usr/lib64/libglib-2.0.so.0
#3  0x00007f4be8457948 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f4be8457aac in g_main_context_iteration () at
/usr/lib64/libglib-2.0.so.0
#5  0x00007f4bf575a5fb in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /opt/kde/lib64/libQt5Core.so.5
#6  0x00007f4bf5708d3b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/opt/kde/lib64/libQt5Core.so.5
#7  0x00007f4bf55624b6 in QThread::exec() () at /opt/kde/lib64/libQt5Core.so.5
#8  0x00007f4bf5563723 in  () at /opt/kde/lib64/libQt5Core.so.5
#9  0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f4bbd498700 (LWP 27515)):
#0  0x00007ffc77ab29fd in clock_gettime ()
#1  0x00007f4bf4e5af76 in clock_gettime () at /lib64/libc.so.6
#2  0x00007f4bf575a001 in  () at /opt/kde/lib64/libQt5Core.so.5
#3  0x00007f4bf57588e9 in QTimerInfoList::updateCurrentTime() () at
/opt/kde/lib64/libQt5Core.so.5
#4  0x00007f4bf5758e95 in QTimerInfoList::timerWait(timespec&) () at
/opt/kde/lib64/libQt5Core.so.5
#5  0x00007f4bf575a39e in  () at /opt/kde/lib64/libQt5Core.so.5
#6  0x00007f4be8456f41 in g_main_context_prepare () at
/usr/lib64/libglib-2.0.so.0
#7  0x00007f4be84578d3 in  () at /usr/lib64/libglib-2.0.so.0
#8  0x00007f4be8457aac in g_main_context_iteration () at
/usr/lib64/libglib-2.0.so.0
#9  0x00007f4bf575a5fb in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /opt/kde/lib64/libQt5Core.so.5
#10 0x00007f4bf5708d3b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/opt/kde/lib64/libQt5Core.so.5
#11 0x00007f4bf55624b6 in QThread::exec() () at /opt/kde/lib64/libQt5Core.so.5
#12 0x00007f4bf5563723 in  () at /opt/kde/lib64/libQt5Core.so.5
#13 0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#14 0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f4bbdc99700 (LWP 27508)):
#0  0x00007ffc77ab29fd in clock_gettime ()
#1  0x00007f4bf4e5af76 in clock_gettime () at /lib64/libc.so.6
#2  0x00007f4bf575a001 in  () at /opt/kde/lib64/libQt5Core.so.5
#3  0x00007f4bf57588e9 in QTimerInfoList::updateCurrentTime() () at
/opt/kde/lib64/libQt5Core.so.5
#4  0x00007f4bf5758e95 in QTimerInfoList::timerWait(timespec&) () at
/opt/kde/lib64/libQt5Core.so.5
#5  0x00007f4bf575a39e in  () at /opt/kde/lib64/libQt5Core.so.5
#6  0x00007f4be8456f41 in g_main_context_prepare () at
/usr/lib64/libglib-2.0.so.0
#7  0x00007f4be84578d3 in  () at /usr/lib64/libglib-2.0.so.0
#8  0x00007f4be8457aac in g_main_context_iteration () at
/usr/lib64/libglib-2.0.so.0
#9  0x00007f4bf575a5fb in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /opt/kde/lib64/libQt5Core.so.5
#10 0x00007f4bf5708d3b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/opt/kde/lib64/libQt5Core.so.5
#11 0x00007f4bf55624b6 in QThread::exec() () at /opt/kde/lib64/libQt5Core.so.5
#12 0x00007f4bf5563723 in  () at /opt/kde/lib64/libQt5Core.so.5
#13 0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#14 0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f4bbe573700 (LWP 27504)):
#0  0x00007f4bf5759fd4 in QElapsedTimer::isMonotonic() () at
/opt/kde/lib64/libQt5Core.so.5
#1  0x00007f4bf5758e3e in QTimerInfoList::repairTimersIfNeeded() () at
/opt/kde/lib64/libQt5Core.so.5
#2  0x00007f4bf5758ea3 in QTimerInfoList::timerWait(timespec&) () at
/opt/kde/lib64/libQt5Core.so.5
#3  0x00007f4bf575a39e in  () at /opt/kde/lib64/libQt5Core.so.5
#4  0x00007f4be8456f41 in g_main_context_prepare () at
/usr/lib64/libglib-2.0.so.0
#5  0x00007f4be84578d3 in  () at /usr/lib64/libglib-2.0.so.0
#6  0x00007f4be8457aac in g_main_context_iteration () at
/usr/lib64/libglib-2.0.so.0
#7  0x00007f4bf575a5fb in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /opt/kde/lib64/libQt5Core.so.5
#8  0x00007f4bf5708d3b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/opt/kde/lib64/libQt5Core.so.5
#9  0x00007f4bf55624b6 in QThread::exec() () at /opt/kde/lib64/libQt5Core.so.5
#10 0x00007f4bf5563723 in  () at /opt/kde/lib64/libQt5Core.so.5
#11 0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#12 0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f4bbf7a6700 (LWP 27491)):
#0  0x00007f4be8456a40 in g_main_context_acquire () at
/usr/lib64/libglib-2.0.so.0
#1  0x00007f4be8457875 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f4be8457aac in g_main_context_iteration () at
/usr/lib64/libglib-2.0.so.0
#3  0x00007f4bf575a5fb in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /opt/kde/lib64/libQt5Core.so.5
#4  0x00007f4bf5708d3b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/opt/kde/lib64/libQt5Core.so.5
#5  0x00007f4bf55624b6 in QThread::exec() () at /opt/kde/lib64/libQt5Core.so.5
#6  0x00007f4bf775a365 in  () at /opt/kde/lib64/libQt5DBus.so.5
#7  0x00007f4bf5563723 in  () at /opt/kde/lib64/libQt5Core.so.5
#8  0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f4bc36bb700 (LWP 27473)):
#0  0x00007f4bf4e43429 in poll () at /lib64/libc.so.6
#1  0x00007f4be7850387 in _xcb_conn_wait () at /usr/lib64/libxcb.so.1
#2  0x00007f4be7851fba in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007f4bc5e34418 in  () at /opt/kde/lib64/libQt5XcbQpa.so.5
#4  0x00007f4bf5563723 in  () at /opt/kde/lib64/libQt5Core.so.5
#5  0x00007f4beaab9d95 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4bf4e4d6ef in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f4bc7c6fc40 (LWP 27443)):
[KCrash Handler]
#5  0x00007f4bdfdc4613 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#6  0x00007f4bdfdc471f in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#7  0x00007f4bdfa9766e in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#8  0x00007f4bdfaa4ea2 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#9  0x00007f4bdfaa56b6 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#10 0x00007f4bdfaa2ee6 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#11 0x00007f4bdfaaf1db in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#12 0x00007f4bdfaaf401 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#13 0x00007f4bdfaaec54 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#14 0x00007f4bdf8a8225 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#15 0x00007f4bdf8e7cd1 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#16 0x00007f4bdf8e87a1 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#17 0x00007f4bdf8f9e40 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#18 0x00007f4bdf8ac32b in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#19 0x00007f4bdf8a6b6b in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#20 0x00007f4bdfbca8d2 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#21 0x00007f4bdfbcabd1 in  () at /opt/kde/lib64/libQt5WebEngineCore.so.5
#22 0x00007f4bde2cc097 in
QtWebEngineCore::WebContentsAdapter::~WebContentsAdapter() () at
/opt/kde/lib64/libQt5WebEngineCore.so.5
#23 0x00007f4be4efbcfa in  () at /opt/kde/lib64/libQt5WebEngineWidgets.so.5
#24 0x00007f4be4efbd89 in  () at /opt/kde/lib64/libQt5WebEngineWidgets.so.5
#25 0x00007f4be4ef7bde in QWebEnginePage::~QWebEnginePage() () at
/opt/kde/lib64/libQt5WebEngineWidgets.so.5
#26 0x00007f4bf2038869 in
MessageViewer::MailWebEnginePage::~MailWebEnginePage() () at
/opt/kde/lib64/libKF5MessageViewer.so.5
#27 0x00007f4bf573045b in QObjectPrivate::deleteChildren() () at
/opt/kde/lib64/libQt5Core.so.5
#28 0x00007f4bf6107516 in QWidget::~QWidget() () at
/opt/kde/lib64/libQt5Widgets.so.5
#29 0x00007f4bf2037169 in
MessageViewer::MailWebEngineView::~MailWebEngineView() () at
/opt/kde/lib64/libKF5MessageViewer.so.5
#30 0x00007f4bf1fde968 in  () at /opt/kde/lib64/libKF5MessageViewer.so.5
#31 0x00007f4bf1fdebc9 in  () at /opt/kde/lib64/libKF5MessageViewer.so.5
#32 0x00007f4bf573045b in QObjectPrivate::deleteChildren() () at
/opt/kde/lib64/libQt5Core.so.5
#33 0x00007f4bf6107516 in QWidget::~QWidget() () at
/opt/kde/lib64/libQt5Widgets.so.5
#34 0x00007f4bf1fd27a9 in MessageViewer::Viewer::~Viewer() () at
/opt/kde/lib64/libKF5MessageViewer.so.5
#35 0x00007f4bf573045b in QObjectPrivate::deleteChildren() () at
/opt/kde/lib64/libQt5Core.so.5
#36 0x00007f4bf6107516 in QWidget::~QWidget() () at
/opt/kde/lib64/libQt5Widgets.so.5
#37 0x00007f4bf703a1b9 in KMReaderWin::~KMReaderWin() () at
/opt/kde/lib64/libkmailprivate.so.5
#38 0x00007f4bf573045b in QObjectPrivate::deleteChildren() () at
/opt/kde/lib64/libQt5Core.so.5
#39 0x00007f4bf6107516 in QWidget::~QWidget() () at
/opt/kde/lib64/libQt5Widgets.so.5
#40 0x00007f4bf625eb49 in QSplitter::~QSplitter() () at
/opt/kde/lib64/libQt5Widgets.so.5
#41 0x00007f4bf573045b in QObjectPrivate::deleteChildren() () at
/opt/kde/lib64/libQt5Core.so.5
#42 0x00007f4bf6107516 in QWidget::~QWidget() () at
/opt/kde/lib64/libQt5Widgets.so.5
#43 0x00007f4bf625eb49 in QSplitter::~QSplitter() () at
/opt/kde/lib64/libQt5Widgets.so.5
#44 0x00007f4bf70709e3 in KMMainWidget::deleteWidgets() () at
/opt/kde/lib64/libkmailprivate.so.5
#45 0x00007f4bf7087998 in KMMainWidget::destruct() () at
/opt/kde/lib64/libkmailprivate.so.5
#46 0x00007f4bf7087b50 in KMMainWidget::~KMMainWidget() () at
/opt/kde/lib64/libkmailprivate.so.5
#47 0x00007f4bf7087d49 in KMMainWidget::~KMMainWidget() () at
/opt/kde/lib64/libkmailprivate.so.5
#48 0x00007f4bf573045b in QObjectPrivate::deleteChildren() () at
/opt/kde/lib64/libQt5Core.so.5
#49 0x00007f4bf6107516 in QWidget::~QWidget() () at
/opt/kde/lib64/libQt5Widgets.so.5
#50 0x00007f4bf4841ae8 in KMainWindow::~KMainWindow() () at
/opt/kde/lib64/libKF5XmlGui.so.5
#51 0x00007f4bf7036139 in KMMainWin::~KMMainWin() () at
/opt/kde/lib64/libkmailprivate.so.5
#52 0x00007f4bf7036309 in KMMainWin::~KMMainWin() () at
/opt/kde/lib64/libkmailprivate.so.5
#53 0x00007f4bf5732c18 in QObject::event(QEvent*) () at
/opt/kde/lib64/libQt5Core.so.5
#54 0x00007f4bf610bcdb in QWidget::event(QEvent*) () at
/opt/kde/lib64/libQt5Widgets.so.5
#55 0x00007f4bf620ae94 in QMainWindow::event(QEvent*) () at
/opt/kde/lib64/libQt5Widgets.so.5
#56 0x00007f4bf4843eda in KMainWindow::event(QEvent*) () at
/opt/kde/lib64/libKF5XmlGui.so.5
#57 0x00007f4bf48978c5 in KXmlGuiWindow::event(QEvent*) () at
/opt/kde/lib64/libKF5XmlGui.so.5
#58 0x00007f4bf60ceb01 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /opt/kde/lib64/libQt5Widgets.so.5
#59 0x00007f4bf60d5a30 in QApplication::notify(QObject*, QEvent*) () at
/opt/kde/lib64/libQt5Widgets.so.5
#60 0x00007f4bf5709f29 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /opt/kde/lib64/libQt5Core.so.5
#61 0x00007f4bf570ce57 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () at /opt/kde/lib64/libQt5Core.so.5
#62 0x00007f4bf575af73 in  () at /opt/kde/lib64/libQt5Core.so.5
#63 0x00007f4be84577be in g_main_context_dispatch () at
/usr/lib64/libglib-2.0.so.0
#64 0x00007f4be8457a28 in  () at /usr/lib64/libglib-2.0.so.0
#65 0x00007f4be8457aac in g_main_context_iteration () at
/usr/lib64/libglib-2.0.so.0
#66 0x00007f4bf575a5e3 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /opt/kde/lib64/libQt5Core.so.5
#67 0x00007f4bf5708d3b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/opt/kde/lib64/libQt5Core.so.5
#68 0x00007f4bf571097e in QCoreApplication::exec() () at
/opt/kde/lib64/libQt5Core.so.5
#69 0x000055a26d0a89a5 in  ()
#70 0x00007f4bf4d7a4bb in __libc_start_main () at /lib64/libc.so.6
#71 0x000055a26d0a8b5a in _start ()
[Inferior 1 (process 27443) detached]

Reported using DrKonqi

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