Application: kwrite (4.8.5 (4.8.5))
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-32-generic x86_64
Distribution: Ubuntu 12.04.2 LTS

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

I clicked on [Menu]->[Help]->[About KWrite]
The "About" dialog shows up, and when I clicked "Close" button, KWrite crashed. 

This happens to every KDE program I have. Click on "About", "About" dialog shows up, close the dialog, application crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: KWrite (kwrite), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f189c248780 (LWP 5320))]

Thread 2 (Thread 0x7f1889934700 (LWP 5321)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f1889ecb222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f1889ecb259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f18962a7e9a in start_thread (arg=0x7f1889934700) at pthread_create.c:308
#4  0x00007f189bb88cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f189c248780 (LWP 5320)):
[KCrash Handler]
#6  0x00007f18995f7b02 in QObject::disconnect (sender=0x13a9660, signal=0x15c3099 "rowsInserted(QModelIndex,int,int)", receiver=0x13bba00, method=0x15c2759 "_k_slotRowsInserted(QModelIndex,int,int)") at kernel/qobject.cpp:2891
#7  0x00007f189acf5cff in ?? () from /usr/lib/libkdeui.so.5
#8  0x00007f18995e4028 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x13aa430, event=0x7ffffcae6f60) at kernel/qcoreapplication.cpp:986
#9  0x00007f1899fdd85f in notify_helper (e=0x7ffffcae6f60, receiver=0x13aa430, this=0xe4fa50) at kernel/qapplication.cpp:4555
#10 QApplicationPrivate::notify_helper (this=0xe4fa50, receiver=0x13aa430, e=0x7ffffcae6f60) at kernel/qapplication.cpp:4531
#11 0x00007f1899fe2713 in QApplication::notify (this=0x7ffffcae7f50, receiver=0x13aa430, e=0x7ffffcae6f60) at kernel/qapplication.cpp:4420
#12 0x00007f189ad173f6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#13 0x00007f18995e3e9c in QCoreApplication::notifyInternal (this=0x7ffffcae7f50, receiver=0x13aa430, event=0x7ffffcae6f60) at kernel/qcoreapplication.cpp:876
#14 0x00007f189a4f830d in sendEvent (event=0x7ffffcae6f60, receiver=0x13aa430) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#15 QAccessible::queryAccessibleInterface (object=0x13aa430) at accessible/qaccessible.cpp:593
#16 0x00007f189a4fe51d in QAccessible::updateAccessibility (o=<optimized out>, who=0, reason=QAccessible::ObjectDestroyed) at accessible/qaccessible_unix.cpp:102
#17 0x00007f189a02874f in QWidget::~QWidget (this=0x13aa430, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1679
#18 0x00007f189a028a19 in QWidget::~QWidget (this=0x13aa430, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1700
#19 0x00007f18995f6935 in QObjectPrivate::deleteChildren (this=0x13ab7f0) at kernel/qobject.cpp:1908
#20 0x00007f189a028740 in QWidget::~QWidget (this=0x13aa370, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1676
#21 0x00007f189ac8ff8e in ?? () from /usr/lib/libkdeui.so.5
#22 0x00007f18995f6935 in QObjectPrivate::deleteChildren (this=0x13a9c60) at kernel/qobject.cpp:1908
#23 0x00007f189a028740 in QWidget::~QWidget (this=0x13a99a0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1676
#24 0x00007f189a028a19 in QWidget::~QWidget (this=0x13a99a0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1700
#25 0x00007f18995f6935 in QObjectPrivate::deleteChildren (this=0x13551c0) at kernel/qobject.cpp:1908
#26 0x00007f189a028740 in QWidget::~QWidget (this=0x133ac00, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1676
#27 0x00007f189a4494b9 in QStackedWidget::~QStackedWidget (this=0x133ac00, __in_chrg=<optimized out>) at widgets/qstackedwidget.cpp:193
#28 0x00007f18995f6935 in QObjectPrivate::deleteChildren (this=0x1381d30) at kernel/qobject.cpp:1908
#29 0x00007f189a028740 in QWidget::~QWidget (this=0x109f190, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1676
#30 0x00007f189a454fa9 in QTabWidget::~QTabWidget (this=0x109f190, __in_chrg=<optimized out>) at widgets/qtabwidget.cpp:367
#31 0x00007f18995f6935 in QObjectPrivate::deleteChildren (this=0x13bd5a0) at kernel/qobject.cpp:1908
#32 0x00007f189a028740 in QWidget::~QWidget (this=0x13450a0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1676
#33 0x00007f189a028a19 in QWidget::~QWidget (this=0x13450a0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1700
#34 0x00007f18995f6935 in QObjectPrivate::deleteChildren (this=0x109c670) at kernel/qobject.cpp:1908
#35 0x00007f189a028740 in QWidget::~QWidget (this=0x13a31b0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1676
#36 0x00007f189ac83729 in KAboutApplicationDialog::~KAboutApplicationDialog() () from /usr/lib/libkdeui.so.5
#37 0x00007f189adc23be in KHelpMenu::timerExpired() () from /usr/lib/libkdeui.so.5
#38 0x00007f18995fd446 in QObject::event (this=0x12c3b70, e=<optimized out>) at kernel/qobject.cpp:1195
#39 0x00007f1899fdd894 in notify_helper (e=0x13d12b0, receiver=0x12c3b70, this=0xe4fa50) at kernel/qapplication.cpp:4559
#40 QApplicationPrivate::notify_helper (this=0xe4fa50, receiver=0x12c3b70, e=0x13d12b0) at kernel/qapplication.cpp:4531
#41 0x00007f1899fe2713 in QApplication::notify (this=0x7ffffcae7f50, receiver=0x12c3b70, e=0x13d12b0) at kernel/qapplication.cpp:4420
#42 0x00007f189ad173f6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#43 0x00007f18995e3e9c in QCoreApplication::notifyInternal (this=0x7ffffcae7f50, receiver=0x12c3b70, event=0x13d12b0) at kernel/qcoreapplication.cpp:876
#44 0x00007f18995e7c6a in sendEvent (event=0x13d12b0, receiver=0x12c3b70) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#45 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xe231f0) at kernel/qcoreapplication.cpp:1500
#46 0x00007f1899612f93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#47 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#48 0x00007f1895ddad53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#49 0x00007f1895ddb0a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#50 0x00007f1895ddb164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#51 0x00007f18996133bf in QEventDispatcherGlib::processEvents (this=0xe24ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#52 0x00007f189a085d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#53 0x00007f18995e2c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#54 0x00007f18995e2ed7 in QEventLoop::exec (this=0x7ffffcae7ee0, flags=...) at kernel/qeventloop.cpp:204
#55 0x00007f18995e7f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#56 0x00007f189be62cb1 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwrite.so
#57 0x00007f189bab676d in __libc_start_main (main=0x400630, argc=1, ubp_av=0x7ffffcae8a38, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffffcae8a28) at libc-start.c:226
#58 0x0000000000400661 in _start ()

Possible duplicates by query: bug 317520, bug 315478, bug 314525, bug 313423, bug 312392.

Reported using DrKonqi