Version:           3.1.2 (using 4.1.2 (KDE 4.1.2), Kubuntu packages)
Compiler:          cc
OS:                Linux (i686) release 2.6.26-5-generic

Originally reported at https://launchpad.net/bugs/289699

The user reported an always-reproducible Kate crash triggered by an ftp connection being open when Kate was closed. Here is the relevant backtrace:

Application : Kate (kate), signal SIGSEGV
[Thread debugging using libthread_db enabled]
[New Thread 0xb5d646c0 (LWP 2835)]
[KCrash handler]
#6  0x0840a028 in ?? ()
#7  0xb4265f57 in ~KBookmarkHandler (this=0x85746a4)
    at /build/buildd/kdesdk-4.1.2/kate/plugins/filebrowser/kbookmarkhandler.cpp:61
#8  0xb71d30ff in QObjectPrivate::deleteChildren ()
   from /usr/lib/libQtCore.so.4
#9  0xb7658968 in QWidget::~QWidget () from /usr/lib/libQtGui.so.4
#10 0xb798f261 in QFrame::~QFrame () from /usr/lib/libQtGui.so.4
#11 0xb6851821 in ~KHBox (this=0x83dbfd0)
    at /build/buildd/kde4libs-4.1.2/kdeui/widgets/khbox.cpp:51
#12 0xb68a5121 in ~KVBox (this=0x83dbfd0)
    at /build/buildd/kde4libs-4.1.2/kdeui/widgets/kvbox.cpp:29
#13 0xb425e5a6 in ~KateFileSelector (this=0x83dbfd0)
    at /build/buildd/kdesdk-4.1.2/kate/plugins/filebrowser/katefileselector.cpp:266
#14 0xb71d30ff in QObjectPrivate::deleteChildren ()
   from /usr/lib/libQtCore.so.4
#15 0xb7658968 in QWidget::~QWidget () from /usr/lib/libQtGui.so.4
#16 0xb798f261 in QFrame::~QFrame () from /usr/lib/libQtGui.so.4
#17 0xb6851821 in ~KHBox (this=0x83db518)
    at /build/buildd/kde4libs-4.1.2/kdeui/widgets/khbox.cpp:51
#18 0xb68a5121 in ~KVBox (this=0x83db518)
    at /build/buildd/kde4libs-4.1.2/kdeui/widgets/kvbox.cpp:29
#19 0xb7e2abd8 in ~ToolView (this=0x83db518)
    at /build/buildd/kdesdk-4.1.2/kate/app/katemdi.cpp:230
#20 0xb425db37 in ~KateFileSelectorPluginView (this=0x83b6670)
    at /build/buildd/kdesdk-4.1.2/kate/plugins/filebrowser/katefileselector.cpp:95
#21 0xb7e0957c in KatePluginManager::disablePluginGUI (this=0x8230d80, 
    item=0x8230f40, win=0x82647d0)
    at /build/buildd/kdesdk-4.1.2/kate/app/katepluginmanager.cpp:217
#22 0xb7e09e13 in KatePluginManager::disableAllPluginsGUI (this=0x8230d80, 
    win=0x82647d0)
    at /build/buildd/kdesdk-4.1.2/kate/app/katepluginmanager.cpp:151
#23 0xb7e01ae4 in ~KateMainWindow (this=0x82647d0)
    at /build/buildd/kdesdk-4.1.2/kate/app/katemainwindow.cpp:209
#24 0xb71d2dec in qDeleteInEventHandler () from /usr/lib/libQtCore.so.4
#25 0xb71d47a3 in QObject::event () from /usr/lib/libQtCore.so.4
#26 0xb7657044 in QWidget::event () from /usr/lib/libQtGui.so.4
#27 0xb79ab497 in QMainWindow::event () from /usr/lib/libQtGui.so.4
#28 0xb6869098 in KMainWindow::event (this=0x82647d0, ev=0x85f1178)
    at /build/buildd/kde4libs-4.1.2/kdeui/widgets/kmainwindow.cpp:1064
#29 0xb68ac75c in KXmlGuiWindow::event (this=0x82647d0, ev=0x85f1178)
    at /build/buildd/kde4libs-4.1.2/kdeui/xmlgui/kxmlguiwindow.cpp:125
#30 0xb7e00073 in KateMainWindow::event (this=0x82647d0, e=0x85f1178)
    at /build/buildd/kdesdk-4.1.2/kate/app/katemainwindow.cpp:807
#31 0xb75ff8ec in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#32 0xb760783a in QApplication::notify () from /usr/lib/libQtGui.so.4
#33 0xb679772d in KApplication::notify (this=0xbfbac19c, receiver=0x82647d0, 
    event=0x85f1178)
    at /build/buildd/kde4libs-4.1.2/kdeui/kernel/kapplication.cpp:311
#34 0xb71c4e61 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#35 0xb71c5ae5 in QCoreApplicationPrivate::sendPostedEvents ()
   from /usr/lib/libQtCore.so.4
#36 0xb71c5cdd in QCoreApplication::sendPostedEvents ()
   from /usr/lib/libQtCore.so.4
#37 0xb71ef82f in ?? () from /usr/lib/libQtCore.so.4
#38 0xb64916f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#39 0xb6494da3 in ?? () from /usr/lib/libglib-2.0.so.0
#40 0xb6494f61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#41 0xb71ef478 in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#42 0xb7699ee5 in ?? () from /usr/lib/libQtGui.so.4
#43 0xb71c352a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#44 0xb71c36ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#45 0xb71c5da5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#46 0xb75ff767 in QApplication::exec () from /usr/lib/libQtGui.so.4
#47 0xb7fa97cd in kdemain (argc=1, argv=0xbfbac704)
    at /build/buildd/kdesdk-4.1.2/kate/app/katemain.cpp:252
#48 0x080485a2 in main (argc=)
    at /build/buildd/kdesdk-4.1.2/obj-i486-linux-gnu/kate/app/kate_dummy.cpp:3
#0  0xb7fdf410 in __kernel_vsyscall ()