Version: unspecified (using Devel) OS: Linux KDE 4.8 RC1 After the desktop is loaded, sometimes kactivitymanagerd crashes for no reason, even if I'm not doing any KDE desktop-related stuff. No stacktrace is given, only "Application: KDE Activity Manager kactivitymanagerd), signal: Segmentation fault" I have plasma configured with desktop icon view ( which does not work because of https://bugs.kde.org/show_bug.cgi?id=289774 ) Using binaries from [kde-unstable] from ArchLinux. Reproducible: Sometimes Steps to Reproduce: Load a KDE 4.8 RC1 desktop and wait... It will happen eventually. Expected Results: no crash
I may add it seems to happen on Qt 4.7 and 4.8 from what I see on this report : https://bugs.kde.org/show_bug.cgi?id=289774 I'm using Qt 4.8
Finally I get a valid backtrace: Application: KDE Activity Manager (kactivitymanagerd), signal: Segmentation fault [Current thread is 1 (Thread 0x7f352b58f760 (LWP 3116))] Thread 2 (Thread 0x7f351c20e700 (LWP 3157)): [KCrash Handler] #6 0x00007f352a33aa80 in QDBusAbstractInterface::service() const () from /usr/lib64/qt4/libQtDBus.so.4 #7 0x00007f3525cd24b0 in Soprano::Client::DBusModel::executeQuery(QString const&, Soprano::Query::QueryLanguage, QString const&) const () from /usr/lib64/libsopranoclient.so.1 #8 0x00007f352a5d8959 in Nepomuk::MainModel::executeQuery(QString const&, Soprano::Query::QueryLanguage, QString const&) const () from /usr/lib64/libnepomuk.so.4 #9 0x00007f3525f4ceac in Soprano::FilterModel::executeQuery(QString const&, Soprano::Query::QueryLanguage, QString const&) const () from /usr/lib64/libsoprano.so.4 #10 0x00007f351c216a6c in activityResource(QString const&) () from /usr/lib64/kde4/activitymanager_plugin_nepomuk.so #11 0x00007f351c21d097 in RankingsUpdateThread::run() () from /usr/lib64/kde4/activitymanager_plugin_nepomuk.so #12 0x00007f3529eaf327 in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4 #13 0x00007f35288e2ccc in start_thread () from /lib64/libpthread.so.0 #14 0x00007f3528bd202d in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x7f352b58f760 (LWP 3116)): #0 0x00007f3528bcb9c3 in select () from /lib64/libc.so.6 #1 0x00007f3529fd90fa in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timeval const*) () from /usr/lib64/qt4/libQtCore.so.4 #2 0x00007f352866a3f9 in QNativeSocketEnginePrivate::nativeSelect(int, bool, bool, bool*, bool*) const () from /usr/lib64/qt4/libQtNetwork.so.4 #3 0x00007f3528668578 in QNativeSocketEngine::waitForReadOrWrite(bool*, bool*, bool, bool, int, bool*) () from /usr/lib64/qt4/libQtNetwork.so.4 #4 0x00007f35286604ef in QAbstractSocket::waitForReadyRead(int) () from /usr/lib64/qt4/libQtNetwork.so.4 #5 0x00007f3525caed85 in Soprano::Client::ClientConnection::executeQuery(int, QString const&, Soprano::Query::QueryLanguage, QString const&) () from /usr/lib64/libsopranoclient.so.1 #6 0x00007f3525cb05d5 in Soprano::Client::ClientModel::executeQuery(QString const&, Soprano::Query::QueryLanguage, QString const&) const () from /usr/lib64/libsopranoclient.so.1 #7 0x00007f352a5d8959 in Nepomuk::MainModel::executeQuery(QString const&, Soprano::Query::QueryLanguage, QString const&) const () from /usr/lib64/libnepomuk.so.4 #8 0x00007f3525f4ceac in Soprano::FilterModel::executeQuery(QString const&, Soprano::Query::QueryLanguage, QString const&) const () from /usr/lib64/libsoprano.so.4 #9 0x00007f352a5ce92f in Nepomuk::ResourceData::load() () from /usr/lib64/libnepomuk.so.4 #10 0x00007f352a5cec5c in Nepomuk::ResourceData::property(QUrl const&) () from /usr/lib64/libnepomuk.so.4 #11 0x00007f352a5e21e2 in Nepomuk::Resource::property(QUrl const&) const () from /usr/lib64/libnepomuk.so.4 #12 0x00007f352a5e233d in Nepomuk::Resource::symbols() const () from /usr/lib64/libnepomuk.so.4 #13 0x0000000000407c9a in ActivityManager::ActivityIcon(QString const&) const () #14 0x0000000000415581 in ActivityManagerAdaptor::ActivityIcon(QString const&) () #15 0x0000000000415aa2 in ActivityManagerAdaptor::qt_metacall(QMetaObject::Call, int, void**) () #16 0x00007f352a32b632 in QDBusConnectionPrivate::deliverCall(QObject*, int, QDBusMessage const&, QList<int> const&, int) () from /usr/lib64/qt4/libQtDBus.so.4 #17 0x00007f352a32c77d in QDBusConnectionPrivate::activateCall(QObject*, int, QDBusMessage const&) () from /usr/lib64/qt4/libQtDBus.so.4 #18 0x00007f352a32cfc9 in QDBusConnectionPrivate::activateObject(QDBusConnectionPrivate::ObjectTreeNode&, QDBusMessage const&, int) () from /usr/lib64/qt4/libQtDBus.so.4 #19 0x00007f352a32d1db in QDBusActivateObjectEvent::placeMetaCall(QObject*) () from /usr/lib64/qt4/libQtDBus.so.4 #20 0x00007f3529fc1f7e in QObject::event(QEvent*) () from /usr/lib64/qt4/libQtCore.so.4 #21 0x00007f352935a645 in QApplication::event(QEvent*) () from /usr/lib64/qt4/libQtGui.so.4 #22 0x00007f3529358014 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4 #23 0x00007f352935cb7f in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4 #24 0x00007f352aaacee6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5 #25 0x00007f3529fad6e3 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4 #26 0x00007f3529fb0c0f in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/qt4/libQtCore.so.4 #27 0x00007f3529fdbce3 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /usr/lib64/qt4/libQtCore.so.4 #28 0x00007f352515c842 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0 #29 0x00007f352515d020 in g_main_context_iterate.clone.6 () from /usr/lib64/libglib-2.0.so.0 #30 0x00007f352515d201 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #31 0x00007f3529fdbe6f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #32 0x00007f35293fbc3e in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtGui.so.4 #33 0x00007f3529fac752 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #34 0x00007f3529faca05 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4 #35 0x00007f3529fb1093 in QCoreApplication::exec() () from /usr/lib64/qt4/libQtCore.so.4 #36 0x000000000040f5b3 in main ()
It's a Nepomuk crash
*** This bug has been marked as a duplicate of bug 289711 ***