Application: ksmserver (0.4)
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.2
Operating System: Linux 3.5.3-1.fc17.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:

- Unusual behavior I noticed:
KDE Freezes and X11 crashes when using VIRT-MANAGER. Also, continually crashes opening Plasma desktop. States something about NOUVEAU driver.

The crash can be reproduced every time.

-- Backtrace:
Application: The KDE Session Manager (ksmserver), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[KCrash Handler]
#6  QString (other=..., this=0x7fff1a794c60) at ../../src/corelib/tools/qstring.h:725
#7  dbusInterfaceString () at qdbusintegrator.cpp:83
#8  QDBusConnectionPrivate::disconnectSignal (this=this@entry=0xec8950, it=...) at qdbusintegrator.cpp:2206
#9  0x0000003dfc622431 in QDBusConnectionPrivate::objectDestroyed (this=0xec8950, obj=0xfc2d10) at qdbusintegrator.cpp:1179
#10 0x0000003dfb98cb9f in QMetaObject::activate (sender=sender@entry=0xfc2d10, m=m@entry=0x3dfbcc6a20, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff1a794e50) at kernel/qobject.cpp:3547
#11 0x0000003dfb98d5df in QObject::destroyed (this=this@entry=0xfc2d10, _t1=_t1@entry=0xfc2d10) at .moc/release-shared/moc_qobject.cpp:148
#12 0x0000003dfb98d6d3 in QObject::~QObject (this=0xfc2d10, __in_chrg=<optimized out>) at kernel/qobject.cpp:844
#13 0x0000003dfc635f69 in QDBusInterface::~QDBusInterface (this=0xfc2d10, __in_chrg=<optimized out>) at qdbusinterface.cpp:231
#14 0x0000003dfb988a32 in QObjectPrivate::deleteChildren (this=this@entry=0xfbcd80) at kernel/qobject.cpp:1908
#15 0x0000003dfb98dc06 in QObject::~QObject (this=0xfb9d70, __in_chrg=<optimized out>) at kernel/qobject.cpp:927
#16 0x0000003e07814e59 in KSMServer::~KSMServer (this=0xfb9d70, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.8.5/ksmserver/server.cpp:721
#17 0x0000003e0781435e in sighandler (sig=16566832) at /usr/src/debug/kde-workspace-4.8.5/ksmserver/server.cpp:534
#18 <signal handler called>
#19 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:166
#20 0x0000003dfb87baeb in wait (time=18446744073709551615, this=0xe70180) at thread/qwaitcondition_unix.cpp:86
#21 QWaitCondition::wait (this=<optimized out>, mutex=0xe71468, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#22 0x0000003dfb87b1fc in QThread::wait (this=<optimized out>, time=18446744073709551615) at thread/qthread_unix.cpp:660
#23 0x0000003dfb953c52 in QProcessManager::~QProcessManager (this=0x3dfbccc3c0, __in_chrg=<optimized out>) at io/qprocess_unix.cpp:212
#24 0x0000003defc38b71 in __run_exit_handlers (status=1, listp=0x3deffb0688, run_list_atexit=run_list_atexit@entry=true) at exit.c:78
#25 0x0000003defc38bf5 in __GI_exit (status=<optimized out>) at exit.c:100
#26 0x0000003dfe633ff8 in qt_xio_errhandler () at kernel/qapplication_x11.cpp:770
#27 0x0000003e00845098 in KApplication::xioErrhandler (this=0xe5e850, dpy=0xe521c0) at /usr/src/debug/kdelibs-4.8.5/kdeui/kernel/kapplication.cpp:419
#28 0x0000003df2c455ce in _XIOError (dpy=dpy@entry=0xe521c0) at XlibInt.c:1618
#29 0x0000003df2c4306d in _XEventsQueued (dpy=dpy@entry=0xe521c0, mode=mode@entry=2) at xcb_io.c:365
#30 0x0000003df2c3462b in XEventsQueued (dpy=0xe521c0, mode=2) at Pending.c:43
#31 0x0000003dfe66a14c in x11EventSourceCheck (s=s@entry=0xe70000) at kernel/qguieventdispatcher_glib.cpp:85
#32 0x0000003df204747b in g_main_context_check (context=context@entry=0xe6ee00, max_priority=0, fds=fds@entry=0xfccdd0, n_fds=n_fds@entry=8) at gmain.c:3023
#33 0x0000003df2047902 in g_main_context_iterate (context=context@entry=0xe6ee00, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3143
#34 0x0000003df2047a84 in g_main_context_iteration (context=0xe6ee00, may_block=1) at gmain.c:3207
#35 0x0000003dfb9a44e6 in QEventDispatcherGlib::processEvents (this=0xe37ba0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#36 0x0000003dfe66a2ee in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#37 0x0000003dfb97513f in QEventLoop::processEvents (this=this@entry=0x7fff1a795860, flags=...) at kernel/qeventloop.cpp:149
#38 0x0000003dfb9753c8 in QEventLoop::exec (this=0x7fff1a795860, flags=...) at kernel/qeventloop.cpp:204
#39 0x0000003dfb97a1b8 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#40 0x0000003e07812b99 in kdemain (argc=1, argv=0x7fff1a795b88) at /usr/src/debug/kde-workspace-4.8.5/ksmserver/main.cpp:311
#41 0x0000003defc21735 in __libc_start_main (main=0x400800 <main(int, char**)>, argc=1, ubp_av=0x7fff1a795b88, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff1a795b78) at libc-start.c:226
#42 0x0000000000400831 in _start ()

Reported using DrKonqi