Version:            (using KDE 4.2.1)
Compiler:          gcc-4.3.3 
OS:                Linux
Installed from:    Gentoo Packages

When I log in to KDE - kontact starts and informs, that another instance is running and asks if I want to start it. When I select yes, it opens TWO instances. When I try to close one of them - it crashes with following backtrace:


Application: Kontact (kontact), signal SIGSEGV
0x00007f743806a901 in nanosleep () from /lib/libc.so.6
[Current thread is 0 (LWP 28079)]

Thread 3 (Thread 0x7f741dc05950 (LWP 28155)):
#0  0x00007f7434acd04d in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007f743868a857 in QWaitCondition::wait () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007f74386819d9 in QThreadPoolThread::run () from /usr/lib64/qt4/libQtCore.so.4
#3  0x00007f7438689af9 in QThreadPrivate::start () from /usr/lib64/qt4/libQtCore.so.4
#4  0x00007f7434ac9017 in start_thread () from /lib/libpthread.so.0
#5  0x00007f743809af7d in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f741d1d4950 (LWP 28156)):
#0  0x00007f7434acd04d in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007f743868a857 in QWaitCondition::wait () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007f74386819d9 in QThreadPoolThread::run () from /usr/lib64/qt4/libQtCore.so.4
#3  0x00007f7438689af9 in QThreadPrivate::start () from /usr/lib64/qt4/libQtCore.so.4
#4  0x00007f7434ac9017 in start_thread () from /lib/libpthread.so.0
#5  0x00007f743809af7d in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f743a921770 (LWP 28079)):
[KCrash Handler]
#5  0x00007f7422ee8cb9 in KMMainWidget::initializeFilterActions () from /usr/lib64/libkmailprivate.so.4
#6  0x00007f74234f54e5 in KMailPart::guiActivateEvent () from /usr/lib64/kde4/kmailpart.so
#7  0x00007f743876c875 in QObject::event () from /usr/lib64/qt4/libQtCore.so.4
#8  0x00007f743904c39d in QApplicationPrivate::notify_helper () from /usr/lib64/qt4/libQtGui.so.4
#9  0x00007f7439053d5a in QApplication::notify () from /usr/lib64/qt4/libQtGui.so.4
#10 0x00007f7439bc746b in KApplication::notify () from /usr/lib64/libkdeui.so.5
#11 0x00007f743875daab in QCoreApplication::notifyInternal () from /usr/lib64/qt4/libQtCore.so.4
#12 0x00007f7437dad617 in KParts::MainWindow::createGUI () from /usr/lib64/libkparts.so.4
#13 0x00007f743a5408b6 in Kontact::MainWindow::~MainWindow () from /usr/lib64/libkontactprivate.so.4
#14 0x000000000040483e in main ()