Bug 344251

Application: ksmserver (0.4)
KDE Platform Version: 4.14.1
Qt Version: 4.8.6
Operating System: Linux 3.16.0-30-generic x86_64
Distribution: Ubuntu 14.10

-- Information about the crash:
- What I was doing when the application crashed:
Ksmserver crashed, while Firefox, Chrome and System Monitor were being loaded.

-- Backtrace:
Application: The KDE Session Manager (ksmserver), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[KCrash Handler]
#6  QString (other=..., this=0x7fff9e060cf0) at ../../include/QtCore/../../src/corelib/tools/qstring.h:725
#7  dbusInterfaceString () at qdbusintegrator.cpp:84
#8  QDBusConnectionPrivate::disconnectSignal (this=this@entry=0x259d2e0, it=...) at qdbusintegrator.cpp:2219
#9  0x00007fa9bb494571 in QDBusConnectionPrivate::objectDestroyed (this=0x259d2e0, obj=0x2631e60) at qdbusintegrator.cpp:1183
#10 0x00007fa9bb4d2fac in QDBusConnectionPrivate::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at .moc/release-shared/moc_qdbusconnection_p.cpp:77
#11 0x00007fa9be13fa7a in QMetaObject::activate (sender=sender@entry=0x2631e60, m=m@entry=0x7fa9be487240 <QObject::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff9e060ed0) at kernel/qobject.cpp:3567
#12 0x00007fa9be14048f in QObject::destroyed (this=this@entry=0x2631e60, _t1=_t1@entry=0x2631e60) at .moc/release-shared/moc_qobject.cpp:148
#13 0x00007fa9be1444d7 in QObject::~QObject (this=0x2631e60, __in_chrg=<optimized out>) at kernel/qobject.cpp:871
#14 0x00007fa9bb4aa189 in QDBusInterface::~QDBusInterface (this=0x2631e60, __in_chrg=<optimized out>) at qdbusinterface.cpp:231
#15 0x00007fa9be1424c8 in QObjectPrivate::deleteChildren (this=this@entry=0x26d07b0) at kernel/qobject.cpp:1935
#16 0x00007fa9be144ab5 in QObject::~QObject (this=0x26ab2f0, __in_chrg=<optimized out>) at kernel/qobject.cpp:954
#17 0x00007fa9aac1861e in ~KSMServer (this=0x26ab2f0, __in_chrg=<optimized out>) at ../../ksmserver/server.cpp:737
#18 sighandler (sig=<optimized out>) at ../../ksmserver/server.cpp:539
#19 <signal handler called>
#20 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#21 0x00007fa9be02b894 in wait (time=18446744073709551615, this=0x2591e00) at thread/qwaitcondition_unix.cpp:86
#22 QWaitCondition::wait (this=this@entry=0x2591cb0, mutex=mutex@entry=0x2591c88, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#23 0x00007fa9be02af6e in QThread::wait (this=this@entry=0x7fa9be4925e0 <processManager()::processManager>, time=time@entry=18446744073709551615) at thread/qthread_unix.cpp:720
#24 0x00007fa9be10846d in QProcessManager::~QProcessManager (this=0x7fa9be4925e0 <processManager()::processManager>, __in_chrg=<optimized out>) at io/qprocess_unix.cpp:237
#25 0x00007fa9bcc566a9 in __run_exit_handlers (status=1, listp=0x7fa9bcfda6c8 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:82
#26 0x00007fa9bcc566f5 in __GI_exit (status=<optimized out>) at exit.c:104
#27 0x00007fa9bd51f818 in qt_xio_errhandler () at kernel/qapplication_x11.cpp:783
#28 0x00007fa9beed4fd0 in KApplication::xioErrhandler (this=0x2582aa0, dpy=0x2583310) at ../../kdeui/kernel/kapplication.cpp:419
#29 0x00007fa9be9ab88e in _XIOError (dpy=dpy@entry=0x2583310) at ../../src/XlibInt.c:1498
#30 0x00007fa9be9a999c in _XReply (dpy=dpy@entry=0x2583310, rep=rep@entry=0x7fff9e0618c0, extra=extra@entry=0, discard=discard@entry=1) at ../../src/xcb_io.c:708
#31 0x00007fa9be99fc65 in XQueryPointer (dpy=0x2583310, w=215, root=0x7fff9e061980, child=0x7fff9e061988, root_x=0x7fff9e06196c, root_y=0x7fff9e061970, win_x=0x7fff9e061974, win_y=0x7fff9e061978, mask=0x7fff9e06197c) at ../../src/QuPntr.c:48
#32 0x00007fa9bd53b9b3 in QCursor::pos () at kernel/qcursor_x11.cpp:162
#33 0x00007fa9bd4bda05 in QApplicationPrivate::dispatchEnterLeave (enter=enter@entry=0x25d90f0, leave=<optimized out>) at kernel/qapplication.cpp:2827
#34 0x00007fa9bd532de6 in QApplication::x11ProcessEvent (this=0x2582aa0, event=event@entry=0x7fff9e061cf0) at kernel/qapplication_x11.cpp:3745
#35 0x00007fa9bd55b432 in x11EventSourceDispatch (s=0x2590b70, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#36 0x00007fa9b9e01c5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007fa9b9e01f48 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007fa9b9e01ffc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007fa9be15904e in QEventDispatcherGlib::processEvents (this=0x24cc300, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#40 0x00007fa9bd55b4e6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#41 0x00007fa9be12a4f1 in QEventLoop::processEvents (this=this@entry=0x7fff9e0620d0, flags=...) at kernel/qeventloop.cpp:149
#42 0x00007fa9be12a805 in QEventLoop::exec (this=this@entry=0x7fff9e0620d0, flags=...) at kernel/qeventloop.cpp:204
#43 0x00007fa9be12ff67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#44 0x00007fa9bd4b64dc in QApplication::exec () at kernel/qapplication.cpp:3828
#45 0x00007fa9aac14747 in kdemain (argc=<optimized out>, argv=<optimized out>) at ../../ksmserver/main.cpp:318
#46 0x00000000004084a0 in launch (argc=argc@entry=1, _name=_name@entry=0x2543258 "ksmserver", args=<optimized out>, args@entry=0x2543262 "/home/sherif", cwd=cwd@entry=0x2543262 "/home/sherif", envc=envc@entry=61, envs=<optimized out>, envs@entry=0x2543277 "KDE_FULL_SESSION=true", reset_env=true, tty=0x2543a37 "/dev/pts/6", avoid_loops=false, startup_id_str=0x2543a4a "") at ../../kinit/kinit.cpp:738
#47 0x0000000000409549 in handle_launcher_request (sock=sock@entry=5, who=<optimized out>) at ../../kinit/kinit.cpp:1230
#48 0x0000000000409bd6 in handle_requests (waitForPid=waitForPid@entry=0) at ../../kinit/kinit.cpp:1414
#49 0x00000000004053ed in main (argc=4, argv=<optimized out>, envp=0x7fff9e062cc0) at ../../kinit/kinit.cpp:1911

Possible duplicates by query: bug 306707.

Reproducible: Didn't try