Version:            (using KDE 4.3.4)
OS:                Linux
Installed from:    Fedora RPMs

When I clicked "Next Difference" while comparing two directories, Kompare crashed.
I'll try to find debug-packages for libkomparenavtreepart, to make the report more useful if it should happen again.

Application: Kompare (kompare), signal: Segmentation fault
[Current thread is 1 (Thread 0xb78197a0 (LWP 1807))]

Thread 2 (Thread 0xb5f15b70 (LWP 1878)):
#0  0x00865832 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x00959e21 in select () at ../sysdeps/unix/syscall-template.S:82
#2  0x05a33e86 in QProcessManager::run (this=<value optimized out>) at io/qprocess_unix.cpp:296
#3  0x05964de3 in QThreadPrivate::start (arg=<value optimized out>) at thread/qthread_unix.cpp:188
#4  0x00a36ab5 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#5  0x0096183e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb78197a0 (LWP 1807)):
[KCrash Handler]
#6  0x07125e80 in Q3ListViewItem::parent() const () from /usr/lib/libQt3Support.so.4
#7  0x07136a68 in Q3ListView::ensureItemVisible(Q3ListViewItem const*) () from /usr/lib/libQt3Support.so.4
#8  0x0083e8f1 in ?? () from /usr/lib/kde4/libkomparenavtreepart.so
#9  0x0083ecda in ?? () from /usr/lib/kde4/libkomparenavtreepart.so
#10 0x0083ef60 in ?? () from /usr/lib/kde4/libkomparenavtreepart.so
#11 0x05a6bc0c in QMetaObject::activate (sender=<value optimized out>, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=<value optimized out>)
    at kernel/qobject.cpp:3112
#12 0x05a6c843 in QMetaObject::activate (sender=<value optimized out>, m=<value optimized out>, local_signal_index=<value optimized out>, argv=<value optimized out>) at kernel/qobject.cpp:3186
#13 0x00d46c7a in ?? () from /usr/lib/kde4/libkomparepart.so
#14 0x00d4e171 in ?? () from /usr/lib/kde4/libkomparepart.so
#15 0x05a6bc0c in QMetaObject::activate (sender=<value optimized out>, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=<value optimized out>)
    at kernel/qobject.cpp:3112
#16 0x05a6c843 in QMetaObject::activate (sender=<value optimized out>, m=<value optimized out>, local_signal_index=<value optimized out>, argv=<value optimized out>) at kernel/qobject.cpp:3186
#17 0x00788aea in Diff2::KompareModelList::setSelection(Diff2::DiffModel const*, Diff2::Difference const*) () from /usr/lib/libkomparediff2.so.4
#18 0x00790da2 in Diff2::KompareModelList::slotNextDifference() () from /usr/lib/libkomparediff2.so.4
#19 0x00792b76 in Diff2::KompareModelList::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkomparediff2.so.4
#20 0x05a6bc0c in QMetaObject::activate (sender=<value optimized out>, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=<value optimized out>)
    at kernel/qobject.cpp:3112
#21 0x05a6c059 in QMetaObject::activate (sender=<value optimized out>, m=<value optimized out>, from_local_signal_index=<value optimized out>, to_local_signal_index=<value optimized out>, 
    argv=<value optimized out>) at kernel/qobject.cpp:3206
#22 0x031bd442 in QAction::triggered (this=<value optimized out>, _t1=false) at .moc/release-shared/moc_qaction.cpp:236
#23 0x031bea06 in QAction::activate (this=<value optimized out>, event=<value optimized out>) at kernel/qaction.cpp:1167
#24 0x0365dd73 in trigger (this=<value optimized out>) at ../../src/gui/kernel/qaction.h:203
#25 QToolButton::nextCheckState (this=<value optimized out>) at widgets/qtoolbutton.cpp:1135
#26 0x03578714 in QAbstractButtonPrivate::click (this=<value optimized out>) at widgets/qabstractbutton.cpp:525
#27 0x035789f1 in QAbstractButton::mouseReleaseEvent (this=<value optimized out>, e=<value optimized out>) at widgets/qabstractbutton.cpp:1115
#28 0x0365e27d in QToolButton::mouseReleaseEvent (this=<value optimized out>, e=<value optimized out>) at widgets/qtoolbutton.cpp:709
#29 0x03218d6f in QWidget::event (this=<value optimized out>, event=<value optimized out>) at kernel/qwidget.cpp:7554
#30 0x035769af in QAbstractButton::event (this=<value optimized out>, e=<value optimized out>) at widgets/qabstractbutton.cpp:1077
#31 0x03660c7b in QToolButton::event (this=<value optimized out>, event=<value optimized out>) at widgets/qtoolbutton.cpp:1151
#32 0x031c3b24 in QApplicationPrivate::notify_helper (this=<value optimized out>, receiver=<value optimized out>, e=<value optimized out>) at kernel/qapplication.cpp:4065
#33 0x031cba90 in QApplication::notify (this=<value optimized out>, receiver=<value optimized out>, e=<value optimized out>) at kernel/qapplication.cpp:3767
#34 0x060d907b in KApplication::notify (this=<value optimized out>, receiver=<value optimized out>, event=<value optimized out>) at /usr/src/debug/kdelibs-4.3.4/kdeui/kernel/kapplication.cpp:302
#35 0x05a55d73 in QCoreApplication::notifyInternal (this=<value optimized out>, receiver=<value optimized out>, event=<value optimized out>) at kernel/qcoreapplication.cpp:610
#36 0x031cab97 in sendSpontaneousEvent (event=<value optimized out>, receiver=<value optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:216
#37 QApplicationPrivate::sendMouseEvent (event=<value optimized out>, receiver=<value optimized out>) at kernel/qapplication.cpp:2924
#38 0x032394b8 in QETWidget::translateMouseEvent (this=<value optimized out>, event=<value optimized out>) at kernel/qapplication_x11.cpp:4408
#39 0x0323891d in QApplication::x11ProcessEvent (this=<value optimized out>, event=<value optimized out>) at kernel/qapplication_x11.cpp:3427
#40 0x03263c92 in x11EventSourceDispatch (s=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#41 0x00ac4128 in g_main_dispatch (context=<value optimized out>) at gmain.c:1960
#42 IA__g_main_context_dispatch (context=<value optimized out>) at gmain.c:2513
#43 0x00ac7a58 in g_main_context_iterate (context=<value optimized out>, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:2591
#44 0x00ac7b84 in IA__g_main_context_iteration (context=0x952a690, may_block=<value optimized out>) at gmain.c:2654
#45 0x05a80b6d in QEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#46 0x03263356 in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#47 0x05a542aa in QEventLoop::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qeventloop.cpp:149
#48 0x05a5470a in QEventLoop::exec (this=<value optimized out>, flags=<value optimized out>) at kernel/qeventloop.cpp:201
#49 0x05a56bf7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#50 0x031c39a8 in QApplication::exec () at kernel/qapplication.cpp:3525
#51 0x0804fe28 in _start ()