Version:            (using KDE 4.3.1)
OS:                Linux
Installed from:    Ubuntu Packages

Originally reported at https://launchpad.net/bugs/426265

The user reports:
"I was using krdc trough a vpnc connection, so I had 2 tabs open, the vnp tab and the "start page" tab. Then I closed the "start page" tab and after that it crashed when I tried to get back to my vnc tab."

krdc crashed with the following stacktrace:

.
Thread 2 (process 8385):
#0  0x00c13422 in __kernel_vsyscall ()
#1  0x00e399b1 in select () from /lib/tls/i686/cmov/libc.so.6
No locals.
#2  0x04645483 in WaitForMessage (client=0x89123c8, usecs=500)
    at sockets.c:533
	fds = {__fds_bits = {8192, 0 <repeats 31 times>}}
	timeout = {tv_sec = 0, tv_usec = 336}
	num = 1
#3  0x05432e27 in VncClientThread::run (this=0x888e804)
    at ../../../krdc/vnc/vncclientthread.cpp:287
	i = <value optimized out>
	locker = {{mtx = 0x888e82c, val = 143190060}}
	__PRETTY_FUNCTION__ = "virtual void VncClientThread::run()"
#4  0x01c8ae22 in ?? () from /usr/lib/libQtCore.so.4
#5  0x00c1980e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#6  0x00e4081e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
No locals.
.
Thread 1 (process 8384):
#0  0x01d8cf90 in QObject::connect () from /usr/lib/libQtCore.so.4
#1  0x08062843 in MainWindow::createScrollArea (this=0x839d1b0, 
    parent=0x84e9798, remoteView=0x1) at ../../krdc/mainwindow.cpp:587
	palette = {static staticMetaObject = {d = {superdata = 0x0, 
      stringdata = 0x16e5a80 "QPalette", data = 0x16e5bc0, extradata = 0x0}}, 
  d = 0x1e6c748, current_group = 0, resolve_mask = 0}
#2  0x08066833 in MainWindow::switchFullscreen (this=0x839d1b0)
    at ../../krdc/mainwindow.cpp:558
	scrollArea = <value optimized out>
	__PRETTY_FUNCTION__ = "void MainWindow::switchFullscreen()"
#3  0x0806cf54 in MainWindow::qt_metacall (this=0x839d1b0, 
    _c=QMetaObject::InvokeMetaMethod, _id=61, _a=0xbfd95998)
    at ./mainwindow.moc:134
No locals.
#4  0x01d91253 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#5  0x01d916c8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#6  0x00ff79a1 in QAction::triggered () from /usr/lib/libQtGui.so.4
#7  0x00ff8f22 in QAction::activate () from /usr/lib/libQtGui.so.4
#8  0x0149abd2 in QToolButton::nextCheckState () from /usr/lib/libQtGui.so.4
#9  0x013b4e63 in ?? () from /usr/lib/libQtGui.so.4
#10 0x013b5131 in QAbstractButton::mouseReleaseEvent ()
   from /usr/lib/libQtGui.so.4
#11 0x0149b0cc in QToolButton::mouseReleaseEvent ()
   from /usr/lib/libQtGui.so.4
#12 0x01052f92 in QWidget::event () from /usr/lib/libQtGui.so.4
#13 0x013b30ee in QAbstractButton::event () from /usr/lib/libQtGui.so.4
#14 0x0149da6a in QToolButton::event () from /usr/lib/libQtGui.so.4
#15 0x00ffdf44 in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#16 0x01006023 in QApplication::notify () from /usr/lib/libQtGui.so.4
#17 0x0062ff7a in KApplication::notify (this=0xbfd979b4, receiver=0x843cc38, 
    event=0xbfd95fc0) at ../../kdeui/kernel/kapplication.cpp:302
No locals.
#18 0x01d7b6bb in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#19 0x01004f5e in QApplicationPrivate::sendMouseEvent ()
   from /usr/lib/libQtGui.so.4
#20 0x010736e0 in ?? () from /usr/lib/libQtGui.so.4
#21 0x01072b6b in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#22 0x0109f3f2 in ?? () from /usr/lib/libQtGui.so.4
#23 0x081c8e58 in IA__g_main_context_dispatch (context=0x8327af8)
    at /build/buildd/glib2.0-2.21.6/glib/gmain.c:1960
No locals.
#24 0x081cc700 in g_main_context_iterate (context=0x8327af8, 
    block=<value optimized out>, dispatch=1, self=0x8325aa8)
    at /build/buildd/glib2.0-2.21.6/glib/gmain.c:2591
	max_priority = 2147483647
	timeout = 224
	some_ready = 1
	nfds = <value optimized out>
	allocated_nfds = <value optimized out>
	fds = <value optimized out>
	__PRETTY_FUNCTION__ = "g_main_context_iterate"
#25 0x081cc833 in IA__g_main_context_iteration (context=0x8327af8, 
    may_block=1) at /build/buildd/glib2.0-2.21.6/glib/gmain.c:2654
	retval = <value optimized out>
#26 0x01da601c in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#27 0x0109ead5 in ?? () from /usr/lib/libQtGui.so.4
#28 0x01d79c69 in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#29 0x01d7a0ba in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#30 0x01d7c52f in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#31 0x00ffddc7 in QApplication::exec () from /usr/lib/libQtGui.so.4
#32 0x0806e0e1 in main (argc=3, argv=0xbfd97ba4) at ../../krdc/main.cpp:101
	startupTimer = {mds = 29974963}
	aboutData = {d = 0x8312310}
	app = {<> = {<No data fields>}, static staticMetaObject = {d = {
      superdata = 0x185ff48, stringdata = 0x7b6860 "KApplication", 
      data = 0x7b6a00, extradata = 0x0}}, static loadedByKdeinit = false, 
  static KApp = 0xbfd979b4, d = 0x8374468}
	__PRETTY_FUNCTION__ = "int main(int, char**)"
	options = {d = 0x8325390}
	args = (KCmdLineArgs *) 0x8325558