Application: kopete (1.7.3)
KDE Platform Version: 4.14.15
Qt Version: 4.8.6
Operating System: Linux 4.2.0-25-generic x86_64
Distribution: Ubuntu 15.10

-- Information about the crash:
- What I was doing when the application crashed:
Kopete is crashing if i close a message tab.
It is also crashing on quitting kopete with the main window menu item "Quit"

The crash can be reproduced every time.

-- Backtrace:
Application: Kopete (kopete), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f5d83eb7840 (LWP 2656))]

Thread 4 (Thread 0x7f5d6c06a700 (LWP 2660)):
#0  0x00007f5d7b632884 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5d7b5eda59 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5d7b5ee167 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5d7b5ee2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5d8194620e in QEventDispatcherGlib::processEvents (this=0x7f5d640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#5  0x00007f5d819140d1 in QEventLoop::processEvents (this=this@entry=0x7f5d6c069d40, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f5d81914445 in QEventLoop::exec (this=this@entry=0x7f5d6c069d40, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f5d818034f9 in QThread::exec (this=this@entry=0x10bf060) at thread/qthread.cpp:538
#8  0x00007f5d818f4133 in QInotifyFileSystemWatcherEngine::run (this=0x10bf060) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007f5d81805d1c in QThreadPrivate::start (arg=0x10bf060) at thread/qthread_unix.cpp:349
#10 0x00007f5d7beda6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f5d801d1eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7f5d62039700 (LWP 2667)):
#0  0x00007fffaf1aeb6d in clock_gettime ()
#1  0x00007f5d801e038d in clock_gettime () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007f5d81860565 in do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:127
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:144
#4  0x00007f5d819470a5 in QTimerInfoList::updateCurrentTime (this=0x7f5d54002ce0) at kernel/qeventdispatcher_unix.cpp:354
#5  QTimerInfoList::timerWait (this=0x7f5d54002ce0, tm=...) at kernel/qeventdispatcher_unix.cpp:460
#6  0x00007f5d819458dc in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f5d62038b14) at kernel/qeventdispatcher_glib.cpp:143
#7  0x00007f5d7b5ed77d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f5d7b5ee11b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f5d7b5ee2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f5d8194620e in QEventDispatcherGlib::processEvents (this=0x7f5d540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#11 0x00007f5d819140d1 in QEventLoop::processEvents (this=this@entry=0x7f5d62038ce0, flags=...) at kernel/qeventloop.cpp:149
#12 0x00007f5d81914445 in QEventLoop::exec (this=this@entry=0x7f5d62038ce0, flags=...) at kernel/qeventloop.cpp:204
#13 0x00007f5d818034f9 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:538
#14 0x00007f5d6851cb2a in ?? () from /usr/lib/kde4/kopete_jabber.so
#15 0x00007f5d81805d1c in QThreadPrivate::start (arg=0x13c4d40) at thread/qthread_unix.cpp:349
#16 0x00007f5d7beda6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#17 0x00007f5d801d1eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7f5d58ebc700 (LWP 8955)):
#0  0x00007f5d801c249d in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f5d7b6314e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5d7b5edcd4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5d7b5ee190 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5d7b5ee2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5d8194620e in QEventDispatcherGlib::processEvents (this=0x7f5d480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#6  0x00007f5d819140d1 in QEventLoop::processEvents (this=this@entry=0x7f5d58ebbd40, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f5d81914445 in QEventLoop::exec (this=this@entry=0x7f5d58ebbd40, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f5d818034f9 in QThread::exec (this=this@entry=0x273ac50) at thread/qthread.cpp:538
#9  0x00007f5d818f4133 in QInotifyFileSystemWatcherEngine::run (this=0x273ac50) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f5d81805d1c in QThreadPrivate::start (arg=0x273ac50) at thread/qthread_unix.cpp:349
#11 0x00007f5d7beda6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#12 0x00007f5d801d1eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7f5d83eb7840 (LWP 2656)):
[KCrash Handler]
#6  QPointer<QWidget>::operator QWidget* (this=<error reading variable: Cannot access memory at address 0x8>) at ../../include/QtCore/../../src/corelib/kernel/qpointer.h:78
#7  QScrollArea::widget (this=0x0) at widgets/qscrollarea.cpp:232
#8  0x00007f5d6abf6959 in KHTMLView::contentsHeight() const () from /usr/lib/libkhtml.so.5
#9  0x00007f5d6b42e318 in ChatMessagePart::slotScrollView() () from /usr/lib/libkopetechatwindow_shared.so.1
#10 0x00007f5d81929f60 in QMetaObject::activate (sender=sender@entry=0x3673620, m=m@entry=0x7f5d81c77aa0 <QSingleShotTimer::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3567
#11 0x00007f5d819347da in QSingleShotTimer::timeout (this=0x3673620) at .moc/release-shared/qtimer.moc:96
#12 QSingleShotTimer::timerEvent (this=0x3673620) at kernel/qtimer.cpp:317
#13 0x00007f5d8192fbd3 in QObject::event (this=0x3673620, e=<optimized out>) at kernel/qobject.cpp:1253
#14 0x00007f5d809dbcdc in QApplicationPrivate::notify_helper (this=this@entry=0xb9a480, receiver=receiver@entry=0x3673620, e=e@entry=0x7fffaf199b80) at kernel/qapplication.cpp:4570
#15 0x00007f5d809e2c16 in QApplication::notify (this=0x7fffaf199ee0, receiver=0x3673620, e=0x7fffaf199b80) at kernel/qapplication.cpp:4356
#16 0x00007f5d82396a2a in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#17 0x00007f5d8191585d in QCoreApplication::notifyInternal (this=0x7fffaf199ee0, receiver=0x3673620, event=event@entry=0x7fffaf199b80) at kernel/qcoreapplication.cpp:955
#18 0x00007f5d819486c0 in QCoreApplication::sendEvent (event=0x7fffaf199b80, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#19 QTimerInfoList::activateTimers (this=0xb93180) at kernel/qeventdispatcher_unix.cpp:621
#20 0x00007f5d81945831 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:193
#21 0x00007f5d7b5edff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f5d7b5ee250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f5d7b5ee2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f5d819461ee in QEventDispatcherGlib::processEvents (this=0xb5fcf0, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#25 0x00007f5d80a86c26 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#26 0x00007f5d819140d1 in QEventLoop::processEvents (this=this@entry=0x7fffaf199e00, flags=...) at kernel/qeventloop.cpp:149
#27 0x00007f5d81914445 in QEventLoop::exec (this=this@entry=0x7fffaf199e00, flags=...) at kernel/qeventloop.cpp:204
#28 0x00007f5d8191a429 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1227
#29 0x0000000000414085 in ?? ()
#30 0x00007f5d800eba40 in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#31 0x0000000000414869 in _start ()

Reported using DrKonqi