Version:           KDE: 4.2.60 (KDE 4.2.60 (KDE 4.3 >= 20090106)) kdelibs svn rev. 907834 / kdebase svn rev. 907837 (using Devel)
Compiler:          gcc 
OS:                Linux
Installed from:    Compiled sources

Here using:

Qt: 4.4.3 + qt-copy-patches-889120
KDE: 4.2.60 (KDE 4.2.60 (KDE 4.3 >= 20090106))
kdelibs svn rev. 907834 / kdebase svn rev. 907837
on ArchLinux x86_64 - Kernel 2.6.27.10

---

Tested on some applications like KWrite and Kate (Konqueror also crashes but with a different backtrace, maybe the main window is built in a different way). May be another app crashes too.

---

Steps to reproduce:

- Open KWrite (or Kate/Konqueror)
- Go to Settings/Configure Toolbars
- Click "Defaults"
- Click "Reset" in the confirmation dialog
((In this point you may experience bug 180064, that may be related))
- Click "Cancel" to cancel the changes and to return to the main window
- Close the window

The application will crash
(If it doesn't crash, try again sometimes. bug 180064 may inhibit the crash)
(Also, if you have customized toolbar this may not happen the first time, but the second)

I get different backtraces (randomly):

---

Backtrace 1:

Application: KWrite (kwrite), signal SIGABRT
0x00007f0eabfebfd0 in __nanosleep_nocancel () from /lib/libc.so.6

Thread 1 (Thread 0x7f0eafbb6750 (LWP 20076)):
[KCrash Handler]
#5  0x00007f0eabf7f0c5 in raise () from /lib/libc.so.6
#6  0x00007f0eabf805e3 in abort () from /lib/libc.so.6
#7  0x00007f0eabfbf8e0 in malloc_printerr () from /lib/libc.so.6
#8  0x00007f0eacd7312c in QList<QObjectPrivate::Sender>::free (this=<value optimized out>, data=0x4e6c) at ../../include/QtCore/../../src/corelib/tools/qlist.h:359
#9  0x00007f0eacdb62a8 in QList<QObjectPrivate::Sender>::clear (this=0x4e6c) at ../../include/QtCore/../../src/corelib/tools/qlist.h:370
#10 0x00007f0eacdb586d in ~QObject (this=0x1b99360) at kernel/qobject.cpp:868
#11 0x00007f0ead255ce7 in ~QWidget (this=0x1b99360) at kernel/qwidget.cpp:1351
#12 0x00007f0ead576a85 in ~QMenu (this=0x1b99360) at widgets/qmenu.cpp:1322
#13 0x00007f0eae71e94b in ~KMenu (this=0x1b99360) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/widgets/kmenu.cpp:173
#14 0x00007f0eacdad7e1 in QObjectPrivate::deleteChildren (this=0x183a110) at kernel/qobject.cpp:1884
#15 0x00007f0ead255b5f in ~QWidget (this=0x1839e50) at kernel/qwidget.cpp:1338
#16 0x00007f0eae71c049 in ~KMainWindow (this=0x1839e50) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/widgets/kmainwindow.cpp:463
#17 0x00007f0eaf8d05dd in ~KWrite (this=0x1839e50) at /home/kde-devel/kde/src/KDE/kdebase/apps/kwrite/kwritemain.cpp:146
#18 0x00007f0eacdadc95 in QObject::event (this=0x1839e50, e=0x4e6c) at kernel/qobject.cpp:1139
#19 0x00007f0ead25722c in QWidget::event (this=0x1839e50, event=0x1d0f9d0) at kernel/qwidget.cpp:7551
#20 0x00007f0ead556c7b in QMainWindow::event (this=0x1839e50, event=0x1d0f9d0) at widgets/qmainwindow.cpp:1268
#21 0x00007f0eae7585e8 in KXmlGuiWindow::event (this=0x4e6c, ev=0x4e6c) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/xmlgui/kxmlguiwindow.cpp:131
#22 0x00007f0ead2050ad in QApplicationPrivate::notify_helper (this=0x1786e70, receiver=0x1839e50, e=0x1d0f9d0) at kernel/qapplication.cpp:3803
#23 0x00007f0ead20c40e in QApplication::notify (this=0x7fffb7cf7360, receiver=0x1839e50, e=0x1d0f9d0) at kernel/qapplication.cpp:3768
#24 0x00007f0eae64855b in KApplication::notify (this=0x7fffb7cf7360, receiver=0x1839e50, event=0x1d0f9d0) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/kernel/kapplication.cpp:307
#25 0x00007f0eacd9ed90 in QCoreApplication::notifyInternal (this=0x7fffb7cf7360, receiver=0x1839e50, event=0x1d0f9d0) at kernel/qcoreapplication.cpp:583
#26 0x00007f0eacda2643 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x174ba60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:209
#27 0x00007f0eacdc5fa3 in postEventSourceDispatch (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:214
#28 0x00007f0ea921aaa2 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#29 0x00007f0ea921e21d in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#30 0x00007f0ea921e3db in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#31 0x00007f0eacdc5cdf in QEventDispatcherGlib::processEvents (this=0x175d050, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:319
#32 0x00007f0ead28cf7f in QGuiEventDispatcherGlib::processEvents (this=0x4e6c, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:198
#33 0x00007f0eacd9d9c2 in QEventLoop::processEvents (this=<value optimized out>, flags={i = -1211141728}) at kernel/qeventloop.cpp:143
#34 0x00007f0eacd9db55 in QEventLoop::exec (this=0x7fffb7cf71e0, flags={i = -1211141648}) at kernel/qeventloop.cpp:190
#35 0x00007f0eacda28f7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:845
#36 0x00007f0eaf8d4fa9 in kdemain (argc=2, argv=0x7fffb7cf8008) at /home/kde-devel/kde/src/KDE/kdebase/apps/kwrite/kwritemain.cpp:780
#37 0x00007f0eabf6b546 in __libc_start_main () from /lib/libc.so.6
#38 0x0000000000400749 in _start ()

---

Backtrace 2:

Application: KWrite (kwrite), signal SIGSEGV
0x00007fe83b427fd0 in __nanosleep_nocancel () from /lib/libc.so.6

Thread 1 (Thread 0x7fe83eff2750 (LWP 20266)):
[KCrash Handler]
#5  0x00007fe83c691a7e in ~QWidget (this=0x2148d10) at kernel/qwidget.cpp:1311
#6  0x00007fe83c9b3be9 in ~QMenu (this=0x2148d10) at widgets/qmenu.cpp:1322
#7  0x00007fe83db5a8a3 in ~KMenuPrivate (this=0x227a910) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/widgets/kmenu.cpp:128
#8  0x00007fe83db5a93a in ~KMenu (this=0x21468e0) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/widgets/kmenu.cpp:172
#9  0x00007fe83c1e97e1 in QObjectPrivate::deleteChildren (this=0x1ea9bb0) at kernel/qobject.cpp:1884
#10 0x00007fe83c691b5f in ~QWidget (this=0x1ec1f10) at kernel/qwidget.cpp:1338
#11 0x00007fe83db58049 in ~KMainWindow (this=0x1ec1f10) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/widgets/kmainwindow.cpp:463
#12 0x00007fe83ed0c5dd in ~KWrite (this=0x1ec1f10) at /home/kde-devel/kde/src/KDE/kdebase/apps/kwrite/kwritemain.cpp:146
#13 0x00007fe83c1e9c95 in QObject::event (this=0x1ec1f10, e=0x32) at kernel/qobject.cpp:1139
#14 0x00007fe83c69322c in QWidget::event (this=0x1ec1f10, event=0x2381470) at kernel/qwidget.cpp:7551
#15 0x00007fe83c992c7b in QMainWindow::event (this=0x1ec1f10, event=0x2381470) at widgets/qmainwindow.cpp:1268
#16 0x00007fe83db945e8 in KXmlGuiWindow::event (this=0x0, ev=0x32) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/xmlgui/kxmlguiwindow.cpp:131
#17 0x00007fe83c6410ad in QApplicationPrivate::notify_helper (this=0x1df6d70, receiver=0x1ec1f10, e=0x2381470) at kernel/qapplication.cpp:3803
#18 0x00007fe83c64840e in QApplication::notify (this=0x7fff471327c0, receiver=0x1ec1f10, e=0x2381470) at kernel/qapplication.cpp:3768
#19 0x00007fe83da8455b in KApplication::notify (this=0x7fff471327c0, receiver=0x1ec1f10, event=0x2381470) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/kernel/kapplication.cpp:307
#20 0x00007fe83c1dad90 in QCoreApplication::notifyInternal (this=0x7fff471327c0, receiver=0x1ec1f10, event=0x2381470) at kernel/qcoreapplication.cpp:583
#21 0x00007fe83c1de643 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1dbba60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:209
#22 0x00007fe83c201fa3 in postEventSourceDispatch (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:214
#23 0x00007fe838656aa2 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#24 0x00007fe83865a21d in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#25 0x00007fe83865a3db in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#26 0x00007fe83c201cdf in QEventDispatcherGlib::processEvents (this=0x1dcd050, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:319
#27 0x00007fe83c6c8f7f in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:198
#28 0x00007fe83c1d99c2 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 1192437248}) at kernel/qeventloop.cpp:143
#29 0x00007fe83c1d9b55 in QEventLoop::exec (this=0x7fff47132640, flags={i = 1192437328}) at kernel/qeventloop.cpp:190
#30 0x00007fe83c1de8f7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:845
#31 0x00007fe83ed10fa9 in kdemain (argc=1, argv=0x7fff47133468) at /home/kde-devel/kde/src/KDE/kdebase/apps/kwrite/kwritemain.cpp:780
#32 0x00007fe83b3a7546 in __libc_start_main () from /lib/libc.so.6
#33 0x0000000000400749 in _start ()

---

Backtrace 3 (this seems more related to KXMLGui xml/dom errors and I think it's already reported)

Application: KWrite (kwrite), signal SIGSEGV
0x00007f7d54b57fd0 in __nanosleep_nocancel () from /lib/libc.so.6

Thread 1 (Thread 0x7f7d58722750 (LWP 20274)):
[KCrash Handler]
#5  ~QDomNodePrivate (this=0xd7edb0) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86_64.h:129
#6  0x00007f7d575ce523 in ~QDomTextPrivate (this=0x7f7d54e08a00) at dom/qdom.cpp:322
#7  0x00007f7d575c4d09 in ~QDomNodePrivate (this=0xd7ece0) at dom/qdom.cpp:1455
#8  0x00007f7d575c4f3a in ~QDomElementPrivate (this=0xd7ece0) at dom/qdom.cpp:4386
#9  0x00007f7d575c4d09 in ~QDomNodePrivate (this=0xd75000) at dom/qdom.cpp:1455
#10 0x00007f7d575c4f3a in ~QDomElementPrivate (this=0xd75000) at dom/qdom.cpp:4386
#11 0x00007f7d575c4d09 in ~QDomNodePrivate (this=0xd809c0) at dom/qdom.cpp:1455
#12 0x00007f7d575c4f3a in ~QDomElementPrivate (this=0xd809c0) at dom/qdom.cpp:4386
#13 0x00007f7d575c4d09 in ~QDomNodePrivate (this=0xd197a0) at dom/qdom.cpp:1455
#14 0x00007f7d575c4f3a in ~QDomElementPrivate (this=0xd197a0) at dom/qdom.cpp:4386
#15 0x00007f7d575c4d09 in ~QDomNodePrivate (this=0xcfae00) at dom/qdom.cpp:1455
#16 0x00007f7d575c4e15 in ~QDomDocumentPrivate (this=0xcfae00) at dom/qdom.cpp:6144
#17 0x00007f7d572c8669 in ~KXMLGUIClient (this=0x9a8ef8) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/xmlgui/kxmlguiclient.cpp:54
#18 0x00007f7d5843c5fc in ~KWrite (this=0x9a8e40) at /home/kde-devel/kde/src/KDE/kdebase/apps/kwrite/kwritemain.cpp:146
#19 0x00007f7d55919c95 in QObject::event (this=0x9a8e40, e=0x7f7d54bd7020) at kernel/qobject.cpp:1139
#20 0x00007f7d55dc322c in QWidget::event (this=0x9a8e40, event=0xc260f0) at kernel/qwidget.cpp:7551
#21 0x00007f7d560c2c7b in QMainWindow::event (this=0x9a8e40, event=0xc260f0) at widgets/qmainwindow.cpp:1268
#22 0x00007f7d572c45e8 in KXmlGuiWindow::event (this=0x7f7d54e08a00, ev=0x7f7d54bd7020) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/xmlgui/kxmlguiwindow.cpp:131
#23 0x00007f7d55d710ad in QApplicationPrivate::notify_helper (this=0x8ddd70, receiver=0x9a8e40, e=0xc260f0) at kernel/qapplication.cpp:3803
#24 0x00007f7d55d7840e in QApplication::notify (this=0x7fff60860ed0, receiver=0x9a8e40, e=0xc260f0) at kernel/qapplication.cpp:3768
#25 0x00007f7d571b455b in KApplication::notify (this=0x7fff60860ed0, receiver=0x9a8e40, event=0xc260f0) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/kernel/kapplication.cpp:307
#26 0x00007f7d5590ad90 in QCoreApplication::notifyInternal (this=0x7fff60860ed0, receiver=0x9a8e40, event=0xc260f0) at kernel/qcoreapplication.cpp:583
#27 0x00007f7d5590e643 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8a2a60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:209
#28 0x00007f7d55931fa3 in postEventSourceDispatch (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:214
#29 0x00007f7d51d86aa2 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#30 0x00007f7d51d8a21d in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#31 0x00007f7d51d8a3db in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#32 0x00007f7d55931cdf in QEventDispatcherGlib::processEvents (this=0x8b4050, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:319
#33 0x00007f7d55df8f7f in QGuiEventDispatcherGlib::processEvents (this=0x7f7d54e08a00, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:198
#34 0x00007f7d559099c2 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 1619397904}) at kernel/qeventloop.cpp:143
#35 0x00007f7d55909b55 in QEventLoop::exec (this=0x7fff60860d50, flags={i = 1619397984}) at kernel/qeventloop.cpp:190
#36 0x00007f7d5590e8f7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:845
#37 0x00007f7d58440fa9 in kdemain (argc=1, argv=0x7fff60861b78) at /home/kde-devel/kde/src/KDE/kdebase/apps/kwrite/kwritemain.cpp:780
#38 0x00007f7d54ad7546 in __libc_start_main () from /lib/libc.so.6
#39 0x0000000000400749 in _start ()

----

I also get some different backtraces from Konqueror. (they seem to be sort of random)

Application: Konqueror (konqueror), signal SIGSEGV
0x00007f348840efd0 in __nanosleep_nocancel () from /lib/libc.so.6

Thread 1 (Thread 0x7f348d48c750 (LWP 20290)):
[KCrash Handler]
#5  0x00007f348abb17e5 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x14f0fa0, event=0x7fff955ccd00) at kernel/qcoreapplication.cpp:690
#6  0x00007f3489f6807c in QApplicationPrivate::notify_helper (this=0x11ab2d0, receiver=0x14f0fa0, e=0x7fff955ccd00) at kernel/qapplication.cpp:3799
#7  0x00007f3489f6f40e in QApplication::notify (this=0x7fff955cde70, receiver=0x14f0fa0, e=0x7fff955ccd00) at kernel/qapplication.cpp:3768
#8  0x00007f348b9d255b in KApplication::notify (this=0x7fff955cde70, receiver=0x14f0fa0, event=0x7fff955ccd00) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/kernel/kapplication.cpp:307
#9  0x00007f348abb1d90 in QCoreApplication::notifyInternal (this=0x7fff955cde70, receiver=0x14f0fa0, event=0x7fff955ccd00) at kernel/qcoreapplication.cpp:583
#10 0x00007f3489fada21 in QWidget::removeAction (this=0x14f0fa0, action=0x136b170) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:209
#11 0x00007f3489f648d6 in ~QAction (this=0x136b170) at kernel/qaction.cpp:581
#12 0x00007f3489fbd562 in ~QWidgetAction (this=0x136b170) at kernel/qwidgetaction.cpp:126
#13 0x00007f348b90d6e2 in ~KToggleAction (this=0x136b170) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/actions/ktoggleaction.cpp:84
#14 0x00007f348abc07e1 in QObjectPrivate::deleteChildren (this=0x135e640) at kernel/qobject.cpp:1884
#15 0x00007f348abc89b2 in ~QObject (this=0x1355110) at kernel/qobject.cpp:884
#16 0x00007f348d0f264f in ~ToggleViewGUIClient (this=0x1355110) at /home/kde-devel/kde/src/KDE/kdebase/apps/konqueror/src/konqguiclients.cpp:164
#17 0x00007f348abc07e1 in QObjectPrivate::deleteChildren (this=0x1372c40) at kernel/qobject.cpp:1884
#18 0x00007f3489fb8b5f in ~QWidget (this=0x12e57d0) at kernel/qwidget.cpp:1338
#19 0x00007f348baa6049 in ~KMainWindow (this=0x12e57d0) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/widgets/kmainwindow.cpp:463
#20 0x00007f348d13945d in ~KonqMainWindow (this=0x12e57d0) at /home/kde-devel/kde/src/KDE/kdebase/apps/konqueror/src/konqmainwindow.cpp:358
#21 0x00007f348abc0c95 in QObject::event (this=0x12e57d0, e=0x1) at kernel/qobject.cpp:1139
#22 0x00007f3489fba22c in QWidget::event (this=0x12e57d0, event=0x147aa60) at kernel/qwidget.cpp:7551
#23 0x00007f348a2b9c7b in QMainWindow::event (this=0x12e57d0, event=0x147aa60) at widgets/qmainwindow.cpp:1268
#24 0x00007f348bae25e8 in KXmlGuiWindow::event (this=0x135e240, ev=0x1) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/xmlgui/kxmlguiwindow.cpp:131
#25 0x00007f348d15652f in KonqMainWindow::event (this=0x12e57d0, e=0x147aa60) at /home/kde-devel/kde/src/KDE/kdebase/apps/konqueror/src/konqmainwindow.cpp:5684
#26 0x00007f3489f680ad in QApplicationPrivate::notify_helper (this=0x11ab2d0, receiver=0x12e57d0, e=0x147aa60) at kernel/qapplication.cpp:3803
#27 0x00007f3489f6f40e in QApplication::notify (this=0x7fff955cde70, receiver=0x12e57d0, e=0x147aa60) at kernel/qapplication.cpp:3768
#28 0x00007f348b9d255b in KApplication::notify (this=0x7fff955cde70, receiver=0x12e57d0, event=0x147aa60) at /home/kde-devel/kde/src/KDE/kdelibs/kdeui/kernel/kapplication.cpp:307
#29 0x00007f348abb1d90 in QCoreApplication::notifyInternal (this=0x7fff955cde70, receiver=0x12e57d0, event=0x147aa60) at kernel/qcoreapplication.cpp:583
#30 0x00007f348abb5643 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x116da60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:209
#31 0x00007f348abd8fa3 in postEventSourceDispatch (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:214
#32 0x00007f34865a4aa2 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#33 0x00007f34865a821d in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#34 0x00007f34865a83db in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#35 0x00007f348abd8cdf in QEventDispatcherGlib::processEvents (this=0x1180170, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:319
#36 0x00007f3489feff7f in QGuiEventDispatcherGlib::processEvents (this=0x135e240, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:198
#37 0x00007f348abb09c2 in QEventLoop::processEvents (this=<value optimized out>, flags={i = -1789076544}) at kernel/qeventloop.cpp:143
#38 0x00007f348abb0b55 in QEventLoop::exec (this=0x7fff955cdc00, flags={i = -1789076464}) at kernel/qeventloop.cpp:190
#39 0x00007f348abb58f7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:845
#40 0x00007f348d185c79 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at /home/kde-devel/kde/src/KDE/kdebase/apps/konqueror/src/konqmain.cpp:257
#41 0x00007f348838e546 in __libc_start_main () from /lib/libc.so.6
#42 0x00000000004007c9 in _start ()