Application: dolphin (17.04.2)

Qt Version: 5.6.2
Frameworks Version: 5.32.0
Operating System: Linux 4.4.90-28-default x86_64
Distribution: "openSUSE Leap 42.3"

-- Information about the crash:
-Sometimes closing an Application causes a Bug Report like (it was terminated unexpectedly)
but it works fine.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fe0dc4e8900 (LWP 18119))]

Thread 2 (Thread 0x7fe0c1b6f700 (LWP 18149)):
#0  0x00007fe0d609b5d0 in  () at /usr/lib64/libQt5Core.so.5
#1  0x00007fe0d093795d in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fe0d0938230 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fe0d093842c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fe0d609b1ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fe0d6048bfb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fe0d5e83f5a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007fe0d64af295 in  () at /usr/lib64/libQt5DBus.so.5
#8  0x00007fe0d5e88a29 in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fe0d14bf744 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fe0dbda3aad in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fe0dc4e8900 (LWP 18119)):
[KCrash Handler]
#6  0x0000000001075b00 in  ()
#7  0x00007fe0db2cdbde in  () at /usr/lib64/libKF5Notifications.so.5
#8  0x00007fe0db2cdc79 in  () at /usr/lib64/libKF5Notifications.so.5
#9  0x00007fe0d60736c5 in QObjectPrivate::deleteChildren() () at /usr/lib64/libQt5Core.so.5
#10 0x00007fe0d607cc7e in QObject::~QObject() () at /usr/lib64/libQt5Core.so.5
#11 0x00007fe0db2ac769 in  () at /usr/lib64/libKF5Notifications.so.5
#12 0x00007fe0dbcf1139 in __run_exit_handlers () at /lib64/libc.so.6
#13 0x00007fe0dbcf1185 in  () at /lib64/libc.so.6
#14 0x00007fe0dbcda6ec in __libc_start_main () at /lib64/libc.so.6
#15 0x0000000000400789 in _start ()

Reported using DrKonqi