(gdb) thread apply all bt Thread 6 (Thread 0x7f332e5a5700 (LWP 753)): #0 0x00007f33496c33ed in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007f33432c8ac2 in poll (__timeout=-1, __nfds=1, __fds=0x7f332e5a4c80) at /usr/include/bits/poll2.h:46 #2 _xcb_conn_wait (c=c@entry=0x1ce45c0, cond=cond@entry=0x1ce4600, vector=vector@entry=0x0, count=count@entry=0x0) at /var/tmp/portage/x11-libs/libxcb-1.11.1/work/libxcb-1.11.1/src/xcb_conn.c:459 #3 0x00007f33432ca72f in xcb_wait_for_event (c=0x1ce45c0) at /var/tmp/portage/x11-libs/libxcb-1.11.1/work/libxcb-1.11.1/src/xcb_in.c:693 #4 0x00007f332faaec89 in QXcbEventReader::run (this=0x1cf75d0) at qxcbconnection.cpp:1229 #5 0x00007f3349f46492 in QThreadPrivate::start (arg=0x1cf75d0) at thread/qthread_unix.cpp:331 #6 0x00007f33429f1434 in start_thread (arg=0x7f332e5a5700) at pthread_create.c:334 #7 0x00007f33496cc50d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 5 (Thread 0x7f3327fff700 (LWP 759)): #0 0x00007f33496c33ed in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007f3340f05f2c in g_main_context_poll (priority=2147483647, n_fds=2, fds=0x7f3320003020, timeout=-1, context=0x7f3320000990) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:4135 #2 g_main_context_iterate (context=context@entry=0x7f3320000990, block=block@entry=1, dispatch=dispatch@entry=1, self=) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3835 #3 0x00007f3340f0603c in g_main_context_iteration (context=0x7f3320000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3901 #4 0x00007f334a142787 in QEventDispatcherGlib::processEvents (this=0x7f33200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418 #5 0x00007f334a0f39aa in QEventLoop::exec (this=this@entry=0x7f3327ffed80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204 #6 0x00007f3349f41a24 in QThread::exec (this=) at thread/qthread.cpp:503 #7 0x00007f3349f46492 in QThreadPrivate::start (arg=0x1d5e9b0) at thread/qthread_unix.cpp:331 #8 0x00007f33429f1434 in start_thread (arg=0x7f3327fff700) at pthread_create.c:334 #9 0x00007f33496cc50d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 4 (Thread 0x7f33277fe700 (LWP 760)): #0 0x00007f33496c33ed in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007f3340f05f2c in g_main_context_poll (priority=2147483647, n_fds=2, fds=0x7f3318002e20, timeout=-1, context=0x7f3318000990) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:4135 #2 g_main_context_iterate (context=context@entry=0x7f3318000990, block=block@entry=1, dispatch=dispatch@entry=1, self=) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3835 #3 0x00007f3340f0603c in g_main_context_iteration (context=0x7f3318000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3901 #4 0x00007f334a142787 in QEventDispatcherGlib::processEvents (this=0x7f33180008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418 #5 0x00007f334a0f39aa in QEventLoop::exec (this=this@entry=0x7f33277fdd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204 #6 0x00007f3349f41a24 in QThread::exec (this=) at thread/qthread.cpp:503 #7 0x00007f3349f46492 in QThreadPrivate::start (arg=0x1e13be0) at thread/qthread_unix.cpp:331 #8 0x00007f33429f1434 in start_thread (arg=0x7f33277fe700) at pthread_create.c:334 #9 0x00007f33496cc50d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 3 (Thread 0x7f33269cf700 (LWP 942)): #0 0x00007f33496c33ed in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007f3340f05f2c in g_main_context_poll (priority=2147483647, n_fds=2, fds=0x7f331c003020, timeout=-1, context=0x7f331c000990) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:4135 #2 g_main_context_iterate (context=context@entry=0x7f331c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3835 #3 0x00007f3340f0603c in g_main_context_iteration (context=0x7f331c000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3901 #4 0x00007f334a142787 in QEventDispatcherGlib::processEvents (this=0x7f331c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418 #5 0x00007f334a0f39aa in QEventLoop::exec (this=this@entry=0x7f33269ced80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204 #6 0x00007f3349f41a24 in QThread::exec (this=) at thread/qthread.cpp:503 #7 0x00007f3349f46492 in QThreadPrivate::start (arg=0x1e49750) at thread/qthread_unix.cpp:331 #8 0x00007f33429f1434 in start_thread (arg=0x7f33269cf700) at pthread_create.c:334 #9 0x00007f33496cc50d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 2 (Thread 0x7f3325fbe700 (LWP 1061)): #0 0x00007f33496c33ed in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007f3340f05f2c in g_main_context_poll (priority=2147483647, n_fds=2, fds=0x7f3310003020, timeout=-1, context=0x7f3310000990) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:4135 #2 g_main_context_iterate (context=context@entry=0x7f3310000990, block=block@entry=1, dispatch=dispatch@entry=1, self=) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3835 #3 0x00007f3340f0603c in g_main_context_iteration (context=0x7f3310000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3901 #4 0x00007f334a142787 in QEventDispatcherGlib::processEvents (this=0x7f33100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418 #5 0x00007f334a0f39aa in QEventLoop::exec (this=this@entry=0x7f3325fbdd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204 #6 0x00007f3349f41a24 in QThread::exec (this=) at thread/qthread.cpp:503 #7 0x00007f3349f46492 in QThreadPrivate::start (arg=0x21005c0) at thread/qthread_unix.cpp:331 #8 0x00007f33429f1434 in start_thread (arg=0x7f3325fbe700) at pthread_create.c:334 #9 0x00007f33496cc50d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 1 (Thread 0x7f332ff9e840 (LWP 752)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007f3340f49c8f in g_cond_wait (cond=cond@entry=0x7f33411f44e0 , mutex=mutex@entry=0x7f33411f44f0 ) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gthread-posix.c:1397 #2 0x00007f3340f2be2b in g_once_init_enter (location=location@entry=0x7f3314e36d78 ) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gthread.c:663 #3 0x00007f3314b6e628 in gst_object_get_type () at /var/tmp/portage/media-libs/gstreamer-0.10.36-r2/work/gstreamer-0.10.36/gst/gstobject.c:175 #4 0x00007f3314bb54ad in gst_registry_get_type () at /var/tmp/portage/media-libs/gstreamer-0.10.36-r2/work/gstreamer-0.10.36/gst/gstregistry.c:199 #5 0x00007f3314bb5715 in gst_registry_get_default () at /var/tmp/portage/media-libs/gstreamer-0.10.36-r2/work/gstreamer-0.10.36/gst/gstregistry.c:324 #6 0x00007f3314e9d01f in Phonon::Gstreamer::EffectManager::EffectManager (this=0x258c780, backend=) at /var/tmp/portage/media-libs/phonon-gstreamer-4.7.2/work/phonon-backend-gstreamer-4.7.2/gstreamer/effectmanager.cpp:44 #7 0x00007f3314e913cd in Phonon::Gstreamer::Backend::Backend (this=this@entry=0x23d51c0, parent=parent@entry=0x0) at /var/tmp/portage/media-libs/phonon-gstreamer-4.7.2/work/phonon-backend-gstreamer-4.7.2/gstreamer/backend.cpp:117 #8 0x00007f3314e917f8 in qt_plugin_instance () at /var/tmp/portage/media-libs/phonon-gstreamer-4.7.2/work/phonon-backend-gstreamer-4.7.2-qt5/gstreamer/moc_backend.cpp:248 #9 0x00007f334a0e394f in QPluginLoader::instance (this=this@entry=0x7ffe59c6f040) at plugin/qpluginloader.cpp:192 #10 0x00007f334d329368 in Phonon::FactoryPrivate::tryCreateBackend (this=this@entry=0x23bd430, path=...) at /var/tmp/portage/media-libs/phonon-4.7.2/work/phonon-4.7.2/phonon/factory.cpp:117 #11 0x00007f334d32b759 in Phonon::FactoryPrivate::createSuitableBackend (this=this@entry=0x23bd430, libPath=..., plugins=...) at /var/tmp/portage/media-libs/phonon-4.7.2/work/phonon-4.7.2/phonon/factory.cpp:215 #12 0x00007f334d32bf11 in Phonon::FactoryPrivate::createBackend (this=this@entry=0x23bd430) at /var/tmp/portage/media-libs/phonon-4.7.2/work/phonon-4.7.2/phonon/factory.cpp:299 #13 0x00007f334d32c78d in Phonon::Factory::backend (createWhenNull=createWhenNull@entry=true) at /var/tmp/portage/media-libs/phonon-4.7.2/work/phonon-4.7.2/phonon/factory.cpp:571 #14 0x00007f334d32cda3 in Phonon::Factory::createAudioOutput (parent=0x20e7380) at /var/tmp/portage/media-libs/phonon-4.7.2/work/phonon-4.7.2/phonon/factory.cpp:466 #15 0x00007f334d321d84 in Phonon::AudioOutputPrivate::createBackendObject (this=0x23d05a0) at /var/tmp/portage/media-libs/phonon-4.7.2/work/phonon-4.7.2/phonon/audiooutput.cpp:130 #16 0x00007f334d31f42e in Phonon::AudioOutputPrivate::init (this=0x23d05a0, c=Phonon::NotificationCategory) at /var/tmp/portage/media-libs/phonon-4.7.2/work/phonon-4.7.2/phonon/audiooutput.cpp:97 #17 0x00007f334d5aef22 in NotifyByAudio::notify (this=0x22ecf80, notification=0x2241010, config=0x7ffe59c6f600) at /var/tmp/portage/kde-frameworks/knotifications-5.21.0/work/knotifications-5.21.0/src/notifybyaudio.cpp:53 #18 0x00007f334d5935e9 in KNotificationManager::notify (this=0x7f334d7c71d0 <(anonymous namespace)::Q_QGS_s_self::innerFunction()::holder>, n=n@entry=0x2241010) at /var/tmp/portage/kde-frameworks/knotifications-5.21.0/work/knotifications-5.21.0/src/knotificationmanager.cpp:220 #19 0x00007f334d590af0 in KNotification::sendEvent (this=0x2241010) at /var/tmp/portage/kde-frameworks/knotifications-5.21.0/work/knotifications-5.21.0/src/knotification.cpp:394 #20 0x00007f334a11e08a in QObject::event (this=0x2241010, e=) at kernel/qobject.cpp:1239 #21 0x00007f334a94669c in QApplicationPrivate::notify_helper (this=this@entry=0x1cda8b0, receiver=receiver@entry=0x2241010, e=e@entry=0x22bf290) at kernel/qapplication.cpp:3716 #22 0x00007f334a94bb10 in QApplication::notify (this=0x7ffe59c6fd50, receiver=0x2241010, e=0x22bf290) at kernel/qapplication.cpp:3499 #23 0x00007f334a0f4d8d in QCoreApplication::notifyInternal (this=0x7ffe59c6fd50, receiver=0x2241010, event=event@entry=0x22bf290) at kernel/qcoreapplication.cpp:965 #24 0x00007f334a0f7b63 in QCoreApplication::sendEvent (event=0x22bf290, receiver=) at kernel/qcoreapplication.h:224 #25 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1cb9c80) at kernel/qcoreapplication.cpp:1593 #26 0x00007f334a0f8128 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1451 #27 0x00007f334a142713 in postEventSourceDispatch (s=0x1d2afd0) at kernel/qeventdispatcher_glib.cpp:271 #28 0x00007f3340f05cad in g_main_dispatch (context=0x7f33280016f0) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3154 #29 g_main_context_dispatch (context=context@entry=0x7f33280016f0) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3769 #30 0x00007f3340f05f90 in g_main_context_iterate (context=context@entry=0x7f33280016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3840 #31 0x00007f3340f0603c in g_main_context_iteration (context=0x7f33280016f0, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3901 #32 0x00007f334a142787 in QEventDispatcherGlib::processEvents (this=0x1d224e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418 #33 0x00007f334a0f39aa in QEventLoop::exec (this=this@entry=0x7ffe59c6fbd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204 #34 0x00007f334a0fad8c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229 #35 0x00007f334a41932c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1527 #36 0x00007f334a9422d5 in QApplication::exec () at kernel/qapplication.cpp:2976 #37 0x0000000000412555 in main (argc=1, argv=) at /var/tmp/portage/kde-apps/kdepim-16.04.0/work/kdepim-16.04.0/korgac/korgacmain.cpp:77