Application: kontact (4.14.2)
KDE Platform Version: 4.14.2 (Compiled from sources)
Qt Version: 4.8.6
Operating System: Linux 3.19.0-32-generic x86_64
Distribution: Linux Mint 17.3 Rosa

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

I manually close the application and the crash message appears. This has been repeated over 5 times with the same result.

The crash can be reproduced every time.

-- 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 0x7fda60ba3800 (LWP 4594))]

Thread 5 (Thread 0x7fda40fdf700 (LWP 4596)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fda5b94681d in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fda5b946859 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fda58067184 in start_thread (arg=0x7fda40fdf700) at pthread_create.c:312
#4  0x00007fda5e11b37d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7fda006dc700 (LWP 4597)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fda5b68720d in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fda5b975fd6 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fda58067184 in start_thread (arg=0x7fda006dc700) at pthread_create.c:312
#4  0x00007fda5e11b37d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7fd9f1007700 (LWP 4603)):
#0  0x00007fda5e10c6cd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fda57bc8c10 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fda57b87b14 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fda57b87f7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fda57b880ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fda5e8947be in QEventDispatcherGlib::processEvents (this=0x7fd9ec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007fda5e8660af in QEventLoop::processEvents (this=this@entry=0x7fd9f1006da0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fda5e8663a5 in QEventLoop::exec (this=this@entry=0x7fd9f1006da0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fda5e762c5f in QThread::exec (this=this@entry=0x2503ce0) at thread/qthread.cpp:537
#9  0x00007fda5e847823 in QInotifyFileSystemWatcherEngine::run (this=0x2503ce0) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007fda5e76532f in QThreadPrivate::start (arg=0x2503ce0) at thread/qthread_unix.cpp:349
#11 0x00007fda58067184 in start_thread (arg=0x7fd9f1007700) at pthread_create.c:312
#12 0x00007fda5e11b37d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7fd9eb136700 (LWP 4620)):
#0  0x00007fda57bc961a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fda57bc9979 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fda57b87ed5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fda57b880ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fda5e8947be in QEventDispatcherGlib::processEvents (this=0x7fd9e40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#5  0x00007fda5e8660af in QEventLoop::processEvents (this=this@entry=0x7fd9eb135de0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fda5e8663a5 in QEventLoop::exec (this=this@entry=0x7fd9eb135de0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fda5e762c5f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:537
#8  0x00007fda5e76532f in QThreadPrivate::start (arg=0x1fdc310) at thread/qthread_unix.cpp:349
#9  0x00007fda58067184 in start_thread (arg=0x7fd9eb136700) at pthread_create.c:312
#10 0x00007fda5e11b37d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7fda60ba3800 (LWP 4594)):
[KCrash Handler]
#6  size (this=0x10) at /usr/include/qt4/QtCore/qlist.h:98
#7  count (this=0x10) at /usr/include/qt4/QtCore/qlist.h:280
#8  size (this=0x0) at ../../kmail/undostack.h:59
#9  KMMainWidget::updateMessageActionsDelayed (this=0x2dd2450) at ../../kmail/kmmainwidget.cpp:3967
#10 0x00007fd9f6853c1e in KMMainWidget::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at moc_kmmainwidget.cpp:388
#11 0x00007fda5e87b87a in QMetaObject::activate (sender=0x3222180, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#12 0x00007fda5e87fa31 in QObject::event (this=0x3222180, e=<optimized out>) at kernel/qobject.cpp:1156
#13 0x00007fda5f259e2c in QApplicationPrivate::notify_helper (this=this@entry=0x1db6cc0, receiver=receiver@entry=0x3222180, e=e@entry=0x7ffda16b8390) at kernel/qapplication.cpp:4567
#14 0x00007fda5f2604a0 in QApplication::notify (this=this@entry=0x7ffda16b9040, receiver=receiver@entry=0x3222180, e=e@entry=0x7ffda16b8390) at kernel/qapplication.cpp:4353
#15 0x00007fda5ff64cca in KApplication::notify (this=0x7ffda16b9040, receiver=0x3222180, event=0x7ffda16b8390) at ../../kdeui/kernel/kapplication.cpp:311
#16 0x00007fda5e8674dd in QCoreApplication::notifyInternal (this=0x7ffda16b9040, receiver=0x3222180, event=0x7ffda16b8390) at kernel/qcoreapplication.cpp:953
#17 0x00007fda5e897323 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#18 QTimerInfoList::activateTimers (this=0x1db8d20) at kernel/qeventdispatcher_unix.cpp:621
#19 0x00007fda5e8945f1 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:193
#20 0x00007fda57b87e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fda57b88048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fda57b880ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fda5e8947a1 in QEventDispatcherGlib::processEvents (this=0x1d77bb0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#24 0x00007fda5f2fbbe6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#25 0x00007fda5e8660af in QEventLoop::processEvents (this=this@entry=0x7ffda16b8600, flags=...) at kernel/qeventloop.cpp:149
#26 0x00007fda5e8663a5 in QEventLoop::exec (this=0x7ffda16b8600, flags=...) at kernel/qeventloop.cpp:204
#27 0x00007fda5ecf2af3 in KJob::exec (this=this@entry=0x24e62a0) at ../../kdecore/jobs/kjob.cpp:210
#28 0x00007fd9f6745b56 in KMKernel::cleanup (this=0x2406f40) at ../../kmail/kmkernel.cpp:1311
#29 0x00007fd9f6b00e48 in KMailPart::~KMailPart (this=this@entry=0x2237430, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../kmail/kmail_part.cpp:119
#30 0x00007fd9f6b00f29 in KMailPart::~KMailPart (this=0x2237430, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../kmail/kmail_part.cpp:121
#31 0x00007fda607dfd2e in KontactInterface::Plugin::~Plugin (this=0x2223bb0, __vtt_parm=<optimized out>, __in_chrg=<optimized out>) at ../../kontactinterface/plugin.cpp:92
#32 0x00007fd9fd461d26 in KMailPlugin::~KMailPlugin (this=0x2223bb0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../../../kontact/plugins/kmail/kmail_plugin.cpp:173
#33 0x00007fd9fd461d49 in KMailPlugin::~KMailPlugin (this=0x2223bb0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../../../kontact/plugins/kmail/kmail_plugin.cpp:177
#34 0x00007fda603a6f8e in Kontact::MainWindow::~MainWindow (this=this@entry=0x1f2ccf0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../../kontact/src/mainwindow.cpp:296
#35 0x00007fda603a70e9 in Kontact::MainWindow::~MainWindow (this=0x1f2ccf0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ../../../kontact/src/mainwindow.cpp:298
#36 0x00007fda5e87fc58 in QObject::event (this=this@entry=0x1f2ccf0, e=e@entry=0x1fc4600) at kernel/qobject.cpp:1175
#37 0x00007fda5f2a956b in QWidget::event (this=this@entry=0x1f2ccf0, event=event@entry=0x1fc4600) at kernel/qwidget.cpp:8846
#38 0x00007fda5f663a33 in QMainWindow::event (this=this@entry=0x1f2ccf0, event=event@entry=0x1fc4600) at widgets/qmainwindow.cpp:1478
#39 0x00007fda60019441 in KMainWindow::event (this=this@entry=0x1f2ccf0, ev=ev@entry=0x1fc4600) at ../../kdeui/widgets/kmainwindow.cpp:1084
#40 0x00007fda60050ed9 in KXmlGuiWindow::event (this=0x1f2ccf0, ev=0x1fc4600) at ../../kdeui/xmlgui/kxmlguiwindow.cpp:126
#41 0x00007fda5f259e2c in QApplicationPrivate::notify_helper (this=this@entry=0x1db6cc0, receiver=receiver@entry=0x1f2ccf0, e=e@entry=0x1fc4600) at kernel/qapplication.cpp:4567
#42 0x00007fda5f2604a0 in QApplication::notify (this=this@entry=0x7ffda16b9040, receiver=receiver@entry=0x1f2ccf0, e=e@entry=0x1fc4600) at kernel/qapplication.cpp:4353
#43 0x00007fda5ff64cca in KApplication::notify (this=0x7ffda16b9040, receiver=0x1f2ccf0, event=0x1fc4600) at ../../kdeui/kernel/kapplication.cpp:311
#44 0x00007fda5e8674dd in QCoreApplication::notifyInternal (this=0x7ffda16b9040, receiver=receiver@entry=0x1f2ccf0, event=event@entry=0x1fc4600) at kernel/qcoreapplication.cpp:953
#45 0x00007fda5e86ab3d in sendEvent (event=0x1fc4600, receiver=0x1f2ccf0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#46 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1d762b0) at kernel/qcoreapplication.cpp:1577
#47 0x00007fda5e86afe3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1470
#48 0x00007fda5e894f83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#49 postEventSourceDispatch (s=0x1daff10) at kernel/qeventdispatcher_glib.cpp:287
#50 0x00007fda57b87e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#51 0x00007fda57b88048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#52 0x00007fda57b880ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#53 0x00007fda5e8947a1 in QEventDispatcherGlib::processEvents (this=0x1d77bb0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#54 0x00007fda5f2fbbe6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#55 0x00007fda5e8660af in QEventLoop::processEvents (this=this@entry=0x7ffda16b8f40, flags=...) at kernel/qeventloop.cpp:149
#56 0x00007fda5e8663a5 in QEventLoop::exec (this=this@entry=0x7ffda16b8f40, flags=...) at kernel/qeventloop.cpp:204
#57 0x00007fda5e86bb79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#58 0x00007fda5f25837c in QApplication::exec () at kernel/qapplication.cpp:3828
#59 0x0000000000403660 in main (argc=1, argv=0x7ffda16b9188) at ../../../kontact/src/main.cpp:219

Possible duplicates by query: bug 335679.

Reported using DrKonqi