.
Thread 2 (process 8893):
#0  0xb7f55430 in __kernel_vsyscall ()
#1  0xb66d3a71 in select () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7299b17 in ?? () from /usr/lib/libQtCore.so.4
#3  0xb71ce7d2 in ?? () from /usr/lib/libQtCore.so.4
#4  0xb62394ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5  0xb66db64e in clone () from /lib/tls/i686/cmov/libc.so.6
.
Thread 1 (process 8890):
#0  0xb420187d in Diff2::KompareModelList::slotActionUnApplyDifference ()
   from /usr/lib/libkomparediff2.so.4
#1  0xb4203c8d in Diff2::KompareModelList::qt_metacall ()
   from /usr/lib/libkomparediff2.so.4
#2  0xb72cef79 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#3  0xb72cf3b0 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#4  0xb6979151 in QAction::triggered () from /usr/lib/libQtGui.so.4
#5  0xb6979b2f in QAction::activate () from /usr/lib/libQtGui.so.4
#6  0xb6d9f0e2 in QToolButton::nextCheckState () from /usr/lib/libQtGui.so.4
#7  0xb6cc5d9f in ?? () from /usr/lib/libQtGui.so.4
#8  0xb6cc603b in QAbstractButton::mouseReleaseEvent ()
   from /usr/lib/libQtGui.so.4
#9  0xb6d9f1dc in QToolButton::mouseReleaseEvent ()
   from /usr/lib/libQtGui.so.4
#10 0xb69d7d44 in QWidget::event () from /usr/lib/libQtGui.so.4
#11 0xb6cc4b3f in QAbstractButton::event () from /usr/lib/libQtGui.so.4
#12 0xb6d9eab4 in QToolButton::event () from /usr/lib/libQtGui.so.4
#13 0xb697ff9c in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#14 0xb6985125 in QApplication::notify () from /usr/lib/libQtGui.so.4
#15 0xb7d5719d in KApplication::notify () from /usr/lib/libkdeui.so.5
#16 0xb72ba0b9 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#17 0xb6982661 in QApplicationPrivate::sendMouseEvent ()
   from /usr/lib/libQtGui.so.4
#18 0xb69ec52d in ?? () from /usr/lib/libQtGui.so.4
#19 0xb69eaee1 in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#20 0xb6a13c2a in ?? () from /usr/lib/libQtGui.so.4
#21 0xb60886b1 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#22 0xb608bd53 in ?? () from /usr/lib/libglib-2.0.so.0
#23 0xb608bf11 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#24 0xb72e59f8 in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#25 0xb6a13a25 in ?? () from /usr/lib/libQtGui.so.4
#26 0xb72b933d in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#27 0xb72b94cd in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#28 0xb72bb74d in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#29 0xb697f897 in QApplication::exec () from /usr/lib/libQtGui.so.4
#30 0x0805057d in _start ()