Application: kcmshell4 ()
KDE Platform Version: 4.7.00 (4.7.0)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-11-generic-pae i686
Distribution: Ubuntu 11.04

-- Information about the crash:
Kubentu 11.04, Phonon module crashed in case video settings-Capture Communication - test webcamera

The crash can be reproduced every time.

-- Backtrace:
Application: Модуль настройки KDE (kcmshell4), signal: Aborted
[Current thread is 1 (Thread 0xb59d0710 (LWP 3166))]

Thread 7 (Thread 0xa8df9b70 (LWP 3172)):
#0  0xb5d447af in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb7762656 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb5c4e8eb in g_main_context_release () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb5c5004f in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb5c50524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb6ea8577 in QEventDispatcherGlib::processEvents (this=0x8c64e40, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0xb6e7a289 in QEventLoop::processEvents (this=0xa8df9290, flags=...) at kernel/qeventloop.cpp:149
#7  0xb6e7a522 in QEventLoop::exec (this=0xa8df9290, flags=...) at kernel/qeventloop.cpp:201
#8  0xb6d842a0 in QThread::exec (this=0x8d91788) at thread/qthread.cpp:492
#9  0xb6e5bfdb in QInotifyFileSystemWatcherEngine::run (this=0x8d91788) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb6d86da2 in QThreadPrivate::start (arg=0x8d91788) at thread/qthread_unix.cpp:320
#11 0xb5d40e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb775473e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 6 (Thread 0xae60eb70 (LWP 3180)):
#0  0xb780a424 in __kernel_vsyscall ()
#1  0xb5d45834 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb7762454 in pthread_cond_timedwait () from /lib/i386-linux-gnu/libc.so.6
#3  0xaf7d2963 in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 5 (Thread 0xa43fcb70 (LWP 3181)):
[KCrash Handler]
#7  0xb780a424 in __kernel_vsyscall ()
#8  0xb76aee71 in raise () from /lib/i386-linux-gnu/libc.so.6
#9  0xb76b234e in abort () from /lib/i386-linux-gnu/libc.so.6
#10 0xb6d7c3ba in qt_message_output (msgType=QtFatalMsg, buf=0x965b3e8 "ASSERT: \"!m_mrl.isEmpty()\" in file ../../xine/xinestream.cpp, line 1344") at global/qglobal.cpp:2282
#11 0xb6d7c581 in qt_message (msgType=QtFatalMsg, msg=0xb6ee0afc "ASSERT: \"%s\" in file %s, line %d", ap=0xa43fb964 "\264\301\206\257\374\273\206\257@\005") at global/qglobal.cpp:2328
#12 0xb6d7c689 in qFatal (msg=0xb6ee0afc "ASSERT: \"%s\" in file %s, line %d") at global/qglobal.cpp:2511
#13 0xb6d7c715 in qt_assert (assertion=0xaf86c1b4 "!m_mrl.isEmpty()", file=0xaf86bbfc "../../xine/xinestream.cpp", line=1344) at global/qglobal.cpp:2027
#14 0xaf831280 in Phonon::Xine::XineStream::event (this=0x91c3598, ev=0x9216808) at ../../xine/xinestream.cpp:1344
#15 0xb63d3d24 in QApplicationPrivate::notify_helper (this=0x8af02e8, receiver=0x91c3598, e=0x9216808) at kernel/qapplication.cpp:4462
#16 0xb63d88ce in QApplication::notify (this=0xbfab4758, receiver=0x91c3598, e=0x9216808) at kernel/qapplication.cpp:3862
#17 0xb747793a in KApplication::notify (this=0xbfab4758, receiver=0x91c3598, event=0x9216808) at ../../kdeui/kernel/kapplication.cpp:311
#18 0xb6e7b0bb in QCoreApplication::notifyInternal (this=0xbfab4758, receiver=0x91c3598, event=0x9216808) at kernel/qcoreapplication.cpp:731
#19 0xb6e7ec79 in sendEvent (receiver=0x0, event_type=0, data=0x8ea1d38) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8ea1d38) at kernel/qcoreapplication.cpp:1372
#21 0xb6e7ee0d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1265
#22 0xb6ea83c4 in sendPostedEvents (s=0x8c773e0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#23 postEventSourceDispatch (s=0x8c773e0) at kernel/qeventdispatcher_glib.cpp:277
#24 0xb5c4faa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0xb5c50270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0xb5c50524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#27 0xb6ea853c in QEventDispatcherGlib::processEvents (this=0x91c9378, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#28 0xb6e7a289 in QEventLoop::processEvents (this=0xa43fc2a0, flags=...) at kernel/qeventloop.cpp:149
#29 0xb6e7a522 in QEventLoop::exec (this=0xa43fc2a0, flags=...) at kernel/qeventloop.cpp:201
#30 0xb6d842a0 in QThread::exec (this=0x8faf360) at thread/qthread.cpp:492
#31 0xaf82289a in Phonon::Xine::XineThread::run (this=0x8faf360) at ../../xine/xinethread.cpp:143
#32 0xb6d86da2 in QThreadPrivate::start (arg=0x8faf360) at thread/qthread_unix.cpp:320
#33 0xb5d40e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#34 0xb775473e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 4 (Thread 0xb1c17b70 (LWP 3182)):
#0  0xb780a424 in __kernel_vsyscall ()
#1  0xb7745f76 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb3d3f4a2 in ?? () from /usr/lib/libpulse.so.0
#3  0xb3d2e3a9 in pa_mainloop_poll () from /usr/lib/libpulse.so.0
#4  0xb3d2eb84 in pa_mainloop_iterate () from /usr/lib/libpulse.so.0
#5  0xb3d2ec64 in pa_mainloop_run () from /usr/lib/libpulse.so.0
#6  0xb3d3f443 in ?? () from /usr/lib/libpulse.so.0
#7  0xb3ce1a75 in ?? () from /usr/lib/libpulsecommon-0.9.22.so
#8  0xb5d40e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#9  0xb775473e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xb12ffb70 (LWP 3183)):
#0  0xb780a424 in __kernel_vsyscall ()
#1  0xb5d4548c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb77623fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xaf7e5870 in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 2 (Thread 0xb06f3b70 (LWP 3189)):
#0  0xb780a424 in __kernel_vsyscall ()
#1  0xb774d681 in select () from /lib/i386-linux-gnu/libc.so.6
#2  0xaf7fec38 in xine_usec_sleep () from /usr/lib/libxine.so.1
#3  0x00000000 in ?? ()

Thread 1 (Thread 0xb59d0710 (LWP 3166)):
#0  0xb780a424 in __kernel_vsyscall ()
#1  0xb7745f76 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb5a9ffe0 in ?? () from /usr/lib/i386-linux-gnu/libxcb.so.1
#3  0xb5aa05b5 in ?? () from /usr/lib/i386-linux-gnu/libxcb.so.1
#4  0xb5aa0667 in xcb_writev () from /usr/lib/i386-linux-gnu/libxcb.so.1
#5  0xb60b642b in _XSend () from /usr/lib/i386-linux-gnu/libX11.so.6
#6  0xb60b6889 in _XFlush () from /usr/lib/i386-linux-gnu/libX11.so.6
#7  0xb6096a81 in XFlush () from /usr/lib/i386-linux-gnu/libX11.so.6
#8  0xb648a295 in QGuiEventDispatcherGlib::flush (this=0x8abe440) at kernel/qguieventdispatcher_glib.cpp:221
#9  0xb6e7afb2 in QCoreApplication::flush () at kernel/qcoreapplication.cpp:495
#10 0xb67d8b76 in QAbstractButtonPrivate::click (this=0x8d863c8) at widgets/qabstractbutton.cpp:535
#11 0xb67d8e4e in QAbstractButton::mouseReleaseEvent (this=0x8d86150, e=0xbfab3ec4) at widgets/qabstractbutton.cpp:1121
#12 0xb68a9dcc in QToolButton::mouseReleaseEvent (this=0x8d86150, e=0xbfab3ec4) at widgets/qtoolbutton.cpp:721
#13 0xb642c13a in QWidget::event (this=0x8d86150, event=0xbfab3ec4) at kernel/qwidget.cpp:8259
#14 0xb67d7e9e in QAbstractButton::event (this=0x8d86150, e=0xbfab3ec4) at widgets/qabstractbutton.cpp:1080
#15 0xb68ab4fa in QToolButton::event (this=0x8d86150, event=0xbfab3ec4) at widgets/qtoolbutton.cpp:1163
#16 0xb63d3d24 in QApplicationPrivate::notify_helper (this=0x8af02e8, receiver=0x8d86150, e=0xbfab3ec4) at kernel/qapplication.cpp:4462
#17 0xb63d9201 in QApplication::notify (this=0xbfab4758, receiver=0x8d86150, e=0xbfab3ec4) at kernel/qapplication.cpp:4023
#18 0xb747793a in KApplication::notify (this=0xbfab4758, receiver=0x8d86150, event=0xbfab3ec4) at ../../kdeui/kernel/kapplication.cpp:311
#19 0xb6e7b0bb in QCoreApplication::notifyInternal (this=0xbfab4758, receiver=0x8d86150, event=0xbfab3ec4) at kernel/qcoreapplication.cpp:731
#20 0xb63d4c3b in sendSpontaneousEvent (receiver=0x8d86150, event=0xbfab3ec4, alienWidget=0x0, nativeWidget=0x8d86150, buttonDown=0xb6d22c60, lastMouseReceiver=..., spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#21 QApplicationPrivate::sendMouseEvent (receiver=0x8d86150, event=0xbfab3ec4, alienWidget=0x0, nativeWidget=0x8d86150, buttonDown=0xb6d22c60, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3120
#22 0xb646004c in QETWidget::translateMouseEvent (this=0x8d86150, event=0xbfab43ec) at kernel/qapplication_x11.cpp:4558
#23 0xb645e9b5 in QApplication::x11ProcessEvent (this=0xbfab4758, event=0xbfab43ec) at kernel/qapplication_x11.cpp:3680
#24 0xb648a5f4 in x11EventSourceDispatch (s=0x8af4ce8, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#25 0xb5c4faa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0xb5c50270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#27 0xb5c50524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#28 0xb6ea853c in QEventDispatcherGlib::processEvents (this=0x8abe440, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#29 0xb648a1e5 in QGuiEventDispatcherGlib::processEvents (this=0x8abe440, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#30 0xb6e7a289 in QEventLoop::processEvents (this=0xbfab46c0, flags=...) at kernel/qeventloop.cpp:149
#31 0xb6e7a522 in QEventLoop::exec (this=0xbfab46c0, flags=...) at kernel/qeventloop.cpp:201
#32 0xb68f3a93 in QDialog::exec (this=0x8c106f8) at dialogs/qdialog.cpp:552
#33 0xb7803848 in kdemain (_argc=2, _argv=0xbfab4a04) at ../../kcmshell/main.cpp:292
#34 0x080485bb in main (argc=2, argv=0xbfab4a04) at kcmshell4_dummy.cpp:3

Possible duplicates by query: bug 272630.

Reported using DrKonqi