Application: dolphin (17.04.3)

Qt Version: 5.9.1
Frameworks Version: 5.36.0
Operating System: Linux 4.11.9-1-ARCH x86_64
Distribution: "Arch Linux"

-- Information about the crash:
- What I was doing when the application crashed:
playing audio file in right sidebar - on click on play button

sidenote: the Multimedia module in system settings is also crashing

The crash can be reproduced every time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc682e5c640 (LWP 21570))]

Thread 7 (Thread 0x7fc65268d700 (LWP 21613)):
#0  0x00007fc677a4954c in __lll_lock_wait () at /usr/lib/libpthread.so.0
#1  0x00007fc677a42976 in pthread_mutex_lock () at /usr/lib/libpthread.so.0
#2  0x00007fc682db20dc in _dl_open () at /lib64/ld-linux-x86-64.so.2
#3  0x00007fc68283d3ed in do_dlopen () at /usr/lib/libc.so.6
#4  0x00007fc68283de44 in _dl_catch_error () at /usr/lib/libc.so.6
#5  0x00007fc68283d487 in dlerror_run () at /usr/lib/libc.so.6
#6  0x00007fc68283d521 in __libc_dlopen_mode () at /usr/lib/libc.so.6
#7  0x00007fc677a4ad3c in pthread_cancel_init () at /usr/lib/libpthread.so.0
#8  0x00007fc677a4af34 in _Unwind_ForcedUnwind () at /usr/lib/libpthread.so.0
#9  0x00007fc677a49351 in __pthread_unwind () at /usr/lib/libpthread.so.0
#10 0x00007fc677a411f5 in  () at /usr/lib/libpthread.so.0
#11 0x00007fc682810c04 in pthread_exit () at /usr/lib/libc.so.6
#12 0x00007fc65289b450 in  () at /usr/lib/libspeechd.so.2
#13 0x00007fc677a40049 in start_thread () at /usr/lib/libpthread.so.0
#14 0x00007fc682803f0f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7fc65438e700 (LWP 21575)):
#0  0x00007fc6756da641 in g_private_get () at /usr/lib/libglib-2.0.so.0
#1  0x00007fc6756bcfd0 in g_thread_self () at /usr/lib/libglib-2.0.so.0
#2  0x00007fc675694a7c in g_main_context_acquire () at /usr/lib/libglib-2.0.so.0
#3  0x00007fc675695ac5 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fc675695d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007fc67c92f084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fc67c8d2ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007fc67c6ec40e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007fc67c6f115b in  () at /usr/lib/libQt5Core.so.5
#9  0x00007fc677a40049 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007fc682803f0f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7fc660b67700 (LWP 21574)):
#0  0x00007fc677a461ad in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fc66310950c in  () at /usr/lib/xorg/modules/dri/r600_dri.so
#2  0x00007fc663109218 in  () at /usr/lib/xorg/modules/dri/r600_dri.so
#3  0x00007fc677a40049 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fc682803f0f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fc661ce7700 (LWP 21573)):
#0  0x00007fc677a461ad in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fc66310950c in  () at /usr/lib/xorg/modules/dri/r600_dri.so
#2  0x00007fc663109218 in  () at /usr/lib/xorg/modules/dri/r600_dri.so
#3  0x00007fc677a40049 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fc682803f0f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fc66a19c700 (LWP 21572)):
#0  0x00007fc6827f9e9d in poll () at /usr/lib/libc.so.6
#1  0x00007fc675695c09 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fc675695d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fc67c92f084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fc67c8d2ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fc67c6ec40e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fc67cd4e396 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007fc67c6f115b in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fc677a40049 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fc682803f0f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fc66bf1b700 (LWP 21571)):
#0  0x00007fc6827f9e9d in poll () at /usr/lib/libc.so.6
#1  0x00007fc674b928e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007fc674b94679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007fc66e8a572a in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fc67c6f115b in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fc677a40049 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fc682803f0f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fc682e5c640 (LWP 21570)):
[KCrash Handler]
#5  0x00007f863f629974 in  () at /usr/lib/libQtGui.so.4
#6  0x00007fc682dae37a in call_init.part () at /lib64/ld-linux-x86-64.so.2
#7  0x00007fc682dae486 in _dl_init () at /lib64/ld-linux-x86-64.so.2
#8  0x00007fc682db293e in dl_open_worker () at /lib64/ld-linux-x86-64.so.2
#9  0x00007fc68283de44 in _dl_catch_error () at /usr/lib/libc.so.6
#10 0x00007fc682db215a in _dl_open () at /lib64/ld-linux-x86-64.so.2
#11 0x00007fc67595eea6 in  () at /usr/lib/libdl.so.2
#12 0x00007fc68283de44 in _dl_catch_error () at /usr/lib/libc.so.6
#13 0x00007fc67595f5a7 in  () at /usr/lib/libdl.so.2
#14 0x00007fc67595ef42 in dlopen () at /usr/lib/libdl.so.2
#15 0x00007fc6517cbc81 in  () at /usr/lib/libvlccore.so.8
#16 0x00007fc6517af90a in  () at /usr/lib/libvlccore.so.8
#17 0x00007fc6517aff0f in  () at /usr/lib/libvlccore.so.8
#18 0x00007fc6517b06a0 in  () at /usr/lib/libvlccore.so.8
#19 0x00007fc6517b0aab in  () at /usr/lib/libvlccore.so.8
#20 0x00007fc65173427f in libvlc_InternalInit () at /usr/lib/libvlccore.so.8
#21 0x00007fc6515051a3 in libvlc_new () at /usr/lib/libvlc.so.5
#22 0x00007fc651a6a051 in  () at /usr/lib/qt5/plugins/phonon4qt5_backend/phonon_vlc.so
#23 0x00007fc651a3d8f3 in  () at /usr/lib/qt5/plugins/phonon4qt5_backend/phonon_vlc.so
#24 0x00007fc651a6e7b8 in qt_plugin_instance () at /usr/lib/qt5/plugins/phonon4qt5_backend/phonon_vlc.so
#25 0x00007fc67c8b7647 in QPluginLoader::instance() () at /usr/lib/libQt5Core.so.5
#26 0x00007fc67dfc6380 in  () at /usr/lib/libphonon4qt5.so.4
#27 0x00007fc67dfc847e in  () at /usr/lib/libphonon4qt5.so.4
#28 0x00007fc67dfc919e in  () at /usr/lib/libphonon4qt5.so.4
#29 0x00007fc67dfca02c in Phonon::Factory::backend(bool) () at /usr/lib/libphonon4qt5.so.4
#30 0x00007fc67dfcaa59 in  () at /usr/lib/libphonon4qt5.so.4
#31 0x00007fc67e004ce9 in Phonon::VideoWidget::VideoWidget(QWidget*) () at /usr/lib/libphonon4qt5.so.4
#32 0x00007fc682b1ef32 in  () at /usr/lib/libkdeinit5_dolphin.so
#33 0x00007fc67c9048af in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#34 0x00007fc67da4c2f3 in QAbstractButton::clicked(bool) () at /usr/lib/libQt5Widgets.so.5
#35 0x00007fc67da4c50c in  () at /usr/lib/libQt5Widgets.so.5
#36 0x00007fc67da4d94c in  () at /usr/lib/libQt5Widgets.so.5
#37 0x00007fc67da4db45 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/libQt5Widgets.so.5
#38 0x00007fc67da2c22b in QToolButton::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/libQt5Widgets.so.5
#39 0x00007fc67d8c8d68 in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#40 0x00007fc67da2c2c5 in QToolButton::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#41 0x00007fc67d886e4c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#42 0x00007fc67d88eea1 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#43 0x00007fc67c8d4bd0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#44 0x00007fc67d88de2a in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at /usr/lib/libQt5Widgets.so.5
#45 0x00007fc67d8e3f51 in  () at /usr/lib/libQt5Widgets.so.5
#46 0x00007fc67d8e6691 in  () at /usr/lib/libQt5Widgets.so.5
#47 0x00007fc67d886e4c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#48 0x00007fc67d88e926 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#49 0x00007fc67c8d4bd0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#50 0x00007fc67d0c21e4 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/libQt5Gui.so.5
#51 0x00007fc67d0c3d46 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5
#52 0x00007fc67d09b4ac in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5
#53 0x00007fc66e909cc1 in  () at /usr/lib/libQt5XcbQpa.so.5
#54 0x00007fc675695a57 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#55 0x00007fc675695c88 in  () at /usr/lib/libglib-2.0.so.0
#56 0x00007fc675695d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#57 0x00007fc67c92f061 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#58 0x00007fc67c8d2ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#59 0x00007fc67c8dc048 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#60 0x00007fc682b173ce in kdemain () at /usr/lib/libkdeinit5_dolphin.so
#61 0x00007fc6827364ca in __libc_start_main () at /usr/lib/libc.so.6
#62 0x000055a9eafa979a in _start ()

Reported using DrKonqi