Application: kontact (4.13)
KDE Platform Version: 4.13.0
Qt Version: 4.8.6
Operating System: Linux 3.13.0-24-generic x86_64
Distribution: Ubuntu 14.04 LTS

-- Information about the crash:
- Unusual behavior I noticed:

When I type a recipient in a new e-mail, I will get following error:

 " We can not add more recipients. e have reached maximum recipients."

KMail crashes when I choose a address in the recipient-list.

The crash can be reproduced sometimes.

-- 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 0x7f12d6362800 (LWP 3678))]

Thread 5 (Thread 0x7f12b597d700 (LWP 3679)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f12d111181d in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f12d1111859 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f12cd833182 in start_thread (arg=0x7f12b597d700) at pthread_create.c:312
#4  0x00007f12d38e530d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7f1275062700 (LWP 3680)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f12d0e5220d in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f12d1140fd6 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f12cd833182 in start_thread (arg=0x7f1275062700) at pthread_create.c:312
#4  0x00007f12d38e530d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f1265545700 (LWP 3683)):
#0  0x00007f12d38d66bd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f12cd394c20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f12cd353b14 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f12cd353f7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f12cd3540ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f12d405e7be in QEventDispatcherGlib::processEvents (this=0x7f12600008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007f12d40300af in QEventLoop::processEvents (this=this@entry=0x7f1265544de0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f12d40303a5 in QEventLoop::exec (this=this@entry=0x7f1265544de0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f12d3f2cc5f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:537
#9  0x00007f12d3f2f32f in QThreadPrivate::start (arg=0x9c4eb0) at thread/qthread_unix.cpp:349
#10 0x00007f12cd833182 in start_thread (arg=0x7f1265545700) at pthread_create.c:312
#11 0x00007f12d38e530d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f125e694700 (LWP 3694)):
#0  0x00007f12d38d7fbd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f12cd353fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f12cd3540ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f12d405e7be in QEventDispatcherGlib::processEvents (this=0x7f12580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007f12d40300af in QEventLoop::processEvents (this=this@entry=0x7f125e693da0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f12d40303a5 in QEventLoop::exec (this=this@entry=0x7f125e693da0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f12d3f2cc5f in QThread::exec (this=this@entry=0x17fb830) at thread/qthread.cpp:537
#7  0x00007f12d4011823 in QInotifyFileSystemWatcherEngine::run (this=0x17fb830) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f12d3f2f32f in QThreadPrivate::start (arg=0x17fb830) at thread/qthread_unix.cpp:349
#9  0x00007f12cd833182 in start_thread (arg=0x7f125e694700) at pthread_create.c:312
#10 0x00007f12d38e530d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f12d6362800 (LWP 3678)):
[KCrash Handler]
#6  KPIM::MultiplyingLineView::activateLine (this=this@entry=0x2118c40, line=0x0) at ../../libkdepim/multiplyingline/multiplyinglineview_p.cpp:222
#7  0x00007f12cf635dd0 in KPIM::MultiplyingLineView::slotReturnPressed (this=0x2118c40, line=<optimized out>) at ../../libkdepim/multiplyingline/multiplyinglineview_p.cpp:128
#8  0x00007f12cf6406c4 in KPIM::MultiplyingLineView::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at moc_multiplyinglineview_p.cpp:94
#9  0x00007f12d404587a in QMetaObject::activate (sender=0x211b4e0, m=m@entry=0x7f12cf86c800 <KPIM::MultiplyingLine::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff893b4c20) at kernel/qobject.cpp:3539
#10 0x00007f12cf64096f in KPIM::MultiplyingLine::returnPressed (this=<optimized out>, _t1=0x211b4e0) at moc_multiplyingline.cpp:124
#11 0x00007f12d404587a in QMetaObject::activate (sender=sender@entry=0x1f618d0, m=m@entry=0x7f12d54db780 <QLineEdit::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#12 0x00007f12d4e23603 in QLineEdit::returnPressed (this=this@entry=0x1f618d0) at .moc/release-shared/moc_qlineedit.cpp:283
#13 0x00007f12d57dcbb8 in KLineEdit::keyPressEvent (this=this@entry=0x1f618d0, e=e@entry=0x7fff893b5330) at ../../kdeui/widgets/klineedit.cpp:803
#14 0x00007f12cf604b85 in KPIM::AddresseeLineEdit::keyPressEvent (this=this@entry=0x1f618d0, event=event@entry=0x7fff893b5330) at ../../libkdepim/addressline/addresseelineedit.cpp:1024
#15 0x00007f126a587e49 in MessageComposer::ComposerLineEdit::keyPressEvent (this=this@entry=0x1f618d0, e=e@entry=0x7fff893b5330) at ../../messagecomposer/composer/composerlineedit.cpp:69
#16 0x00007f126a58b46e in MessageComposer::RecipientLineEdit::keyPressEvent (this=0x1f618d0, ev=0x7fff893b5330) at ../../messagecomposer/recipient/recipientline.cpp:64
#17 0x00007f12d4a733d4 in QWidget::event (this=this@entry=0x1f618d0, event=event@entry=0x7fff893b5330) at kernel/qwidget.cpp:8422
#18 0x00007f12d4e25341 in QLineEdit::event (this=this@entry=0x1f618d0, e=e@entry=0x7fff893b5330) at widgets/qlineedit.cpp:1524
#19 0x00007f12d57ddc30 in KLineEdit::event (this=0x1f618d0, ev=0x7fff893b5330) at ../../kdeui/widgets/klineedit.cpp:1402
#20 0x00007f12d4a23e2c in QApplicationPrivate::notify_helper (this=this@entry=0x74abb0, receiver=receiver@entry=0x1f618d0, e=e@entry=0x7fff893b5330) at kernel/qapplication.cpp:4567
#21 0x00007f12d4a2b6f1 in QApplication::notify (this=this@entry=0x7fff893b5d90, receiver=receiver@entry=0x1f618d0, e=e@entry=0x7fff893b5330) at kernel/qapplication.cpp:4008
#22 0x00007f12d572ebaa in KApplication::notify (this=0x7fff893b5d90, receiver=0x1f618d0, event=0x7fff893b5330) at ../../kdeui/kernel/kapplication.cpp:311
#23 0x00007f12d40314dd in QCoreApplication::notifyInternal (this=0x7fff893b5d90, receiver=receiver@entry=0x1f618d0, event=event@entry=0x7fff893b5330) at kernel/qcoreapplication.cpp:953
#24 0x00007f12d4a22556 in sendSpontaneousEvent (event=event@entry=0x7fff893b5330, receiver=receiver@entry=0x1f618d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#25 qt_sendSpontaneousEvent (receiver=receiver@entry=0x1f618d0, event=event@entry=0x7fff893b5330) at kernel/qapplication.cpp:5565
#26 0x00007f12d4ac2ff7 in QKeyMapper::sendKeyEvent (keyWidget=keyWidget@entry=0x1f618d0, grab=grab@entry=false, type=QEvent::KeyPress, code=16777220, modifiers=..., text=..., autorepeat=autorepeat@entry=false, count=1, nativeScanCode=36, nativeVirtualKey=65293, nativeModifiers=0) at kernel/qkeymapper_x11.cpp:1866
#27 0x00007f12d4ac3399 in QKeyMapperPrivate::translateKeyEvent (this=0x7baea0, keyWidget=keyWidget@entry=0x1f618d0, event=event@entry=0x7fff893b58c0, grab=grab@entry=false) at kernel/qkeymapper_x11.cpp:1836
#28 0x00007f12d4a9d3f7 in QApplication::x11ProcessEvent (this=0x7fff893b5d90, event=event@entry=0x7fff893b58c0) at kernel/qapplication_x11.cpp:3642
#29 0x00007f12d4ac5b02 in x11EventSourceDispatch (s=0x74e2d0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#30 0x00007f12cd353e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f12cd354048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f12cd3540ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f12d405e7be in QEventDispatcherGlib::processEvents (this=0x70dbb0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#34 0x00007f12d4ac5bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#35 0x00007f12d40300af in QEventLoop::processEvents (this=this@entry=0x7fff893b5c90, flags=...) at kernel/qeventloop.cpp:149
#36 0x00007f12d40303a5 in QEventLoop::exec (this=this@entry=0x7fff893b5c90, flags=...) at kernel/qeventloop.cpp:204
#37 0x00007f12d4035b79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#38 0x00007f12d4a2237c in QApplication::exec () at kernel/qapplication.cpp:3828
#39 0x0000000000403660 in main (argc=1, argv=0x7fff893b5ed8) at ../../../kontact/src/main.cpp:219

Reported using DrKonqi