Application: kmix (4.6RC1)

Qt Version: 5.4.0
Operating System: Linux 3.18.3-201.fc21.x86_64 x86_64
Distribution: "Fedora release 21 (Twenty One)"

-- Information about the crash:
- What I was doing when the application crashed:
Opened the soound applet and clicked "Mixer". KMix opens and closes immediately, followed by "KMix" crashed dialog.

The crash does not seem to be reproducible.

-- Backtrace:
Application: KMix (kmix), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2584b15900 (LWP 19288))]

Thread 2 (Thread 0x7f257c9c9700 (LWP 19289)):
#0  0x00007f25918e21fd in poll () at /lib64/libc.so.6
#1  0x00007f258f51d182 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f258f51ecff in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f257e510959 in QXcbEventReader::run() () at /usr/lib64/qt5/plugins/platforms/libqxcb.so
#4  0x00007f2592ef24ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f259001452a in start_thread () at /lib64/libpthread.so.0
#6  0x00007f25918ed79d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f2584b15900 (LWP 19288)):
[KCrash Handler]
#5  0x00007f2593c015cf in QMenu::setSeparatorsCollapsible(bool) () at /lib64/libQt5Widgets.so.5
#6  0x00007f2593c026b1 in QMenu::actionEvent(QActionEvent*) () at /lib64/libQt5Widgets.so.5
#7  0x00007f2593ac7df8 in QWidget::event(QEvent*) () at /lib64/libQt5Widgets.so.5
#8  0x00007f2593c08473 in QMenu::event(QEvent*) () at /lib64/libQt5Widgets.so.5
#9  0x00007f2593a84d3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#10 0x00007f2593a8a330 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#11 0x00007f25930dd4ab in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#12 0x00007f2593a7c7a8 in QActionPrivate::sendDataChanged() () at /lib64/libQt5Widgets.so.5
#13 0x00007f25950a4dd0 in KPopupAccelManager::setMenuEntries(QList<KAccelString> const&) () at /lib64/libKF5WidgetsAddons.so.5
#14 0x00007f25950a9dfa in KPopupAccelManager::aboutToShow() () at /lib64/libKF5WidgetsAddons.so.5
#15 0x00007f25950aa1d5 in KPopupAccelManager::manage(QMenu*) () at /lib64/libKF5WidgetsAddons.so.5
#16 0x00007f25950aa42d in KAcceleratorManagerPrivate::manageMenuBar(QMenuBar*, KAcceleratorManagerPrivate::Item*) () at /lib64/libKF5WidgetsAddons.so.5
#17 0x00007f25950aae88 in KAcceleratorManagerPrivate::manageWidget(QWidget*, KAcceleratorManagerPrivate::Item*) [clone .part.64] () at /lib64/libKF5WidgetsAddons.so.5
#18 0x00007f25950ab897 in KAcceleratorManagerPrivate::traverseChildren(QWidget*, KAcceleratorManagerPrivate::Item*) () at /lib64/libKF5WidgetsAddons.so.5
#19 0x00007f25950aaf97 in KAcceleratorManagerPrivate::manageWidget(QWidget*, KAcceleratorManagerPrivate::Item*) [clone .part.64] () at /lib64/libKF5WidgetsAddons.so.5
#20 0x00007f25950abb44 in KAcceleratorManagerPrivate::manage(QWidget*) () at /lib64/libKF5WidgetsAddons.so.5
#21 0x00007f259682a763 in KCheckAccelerators::checkAccelerators(bool) () at /lib64/libKF5XmlGui.so.5
#22 0x00007f259682b7ee in KCheckAccelerators::autoCheckSlot() () at /lib64/libKF5XmlGui.so.5
#23 0x00007f259310cac9 in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#24 0x00007f259311a718 in QTimer::timerEvent(QTimerEvent*) () at /lib64/libQt5Core.so.5
#25 0x00007f259310dbe3 in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#26 0x00007f2593a84d3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#27 0x00007f2593a8a330 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#28 0x00007f25930dd4ab in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#29 0x00007f2593133655 in QTimerInfoList::activateTimers() () at /lib64/libQt5Core.so.5
#30 0x00007f2593133a81 in timerSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#31 0x00007f2592421aeb in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#32 0x00007f2592421e88 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#33 0x00007f2592421f3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#34 0x00007f2593134727 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#35 0x00007f25930dad42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#36 0x00007f25930e27ec in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#37 0x00007f259893c8c7 in kdemain () at /lib64/libkdeinit5_kmix.so
#38 0x00007f259180cfe0 in __libc_start_main () at /lib64/libc.so.6
#39 0x0000000000400a9e in _start ()

Possible duplicates by query: bug 343359.

Reported using DrKonqi