Application: plasmashell (5.5.1) Qt Version: 5.5.1 Operating System: Linux 4.3.2-desktop-2.mga6 x86_64 Distribution: "Mageia 6" -- Information about the crash: - What I was doing when the application crashed: 1. Right Mouse Button on desktop 2. Select Activities 3. In left edge I have only one scaled empty desktop. When I move mouse pointer over it then I can see on bottom of it yellow/green bar 4. click settings icon localized on above bar Plasma crashed Plasma ver.5.1.1 The crash can be reproduced every time. -- Backtrace: Application: Plazma (plasmashell), signal: Segmentation fault Using host libthread_db library "/lib64/libthread_db.so.1". [Current thread is 1 (Thread 0x7f715a49f800 (LWP 8980))] Thread 9 (Thread 0x7f7145d00700 (LWP 8983)): #0 0x00007f7154bdbdbd in poll () at /lib64/libc.so.6 #1 0x00007f7158c64ac2 in _xcb_conn_wait () at /lib64/libxcb.so.1 #2 0x00007f7158c66697 in xcb_wait_for_event () at /lib64/libxcb.so.1 #3 0x00007f7147e27cc9 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5 #4 0x00007f71552c601f in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #5 0x00007f71543d865d in start_thread () at /lib64/libpthread.so.0 #6 0x00007f7154be7bfd in clone () at /lib64/libc.so.6 Thread 8 (Thread 0x7f713f3ea700 (LWP 8991)): #0 0x00007f7151e43d03 in g_main_context_query () at /lib64/libglib-2.0.so.0 #1 0x00007f7151e443af in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0 #2 0x00007f7151e4453c in g_main_context_iteration () at /lib64/libglib-2.0.so.0 #3 0x00007f71554e992b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #4 0x00007f715549380a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #5 0x00007f71552c11bc in QThread::exec() () at /lib64/libQt5Core.so.5 #6 0x00007f7157b4dcd5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5 #7 0x00007f71552c601f in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #8 0x00007f71543d865d in start_thread () at /lib64/libpthread.so.0 #9 0x00007f7154be7bfd in clone () at /lib64/libc.so.6 Thread 7 (Thread 0x7f7136b84700 (LWP 8998)): #0 0x00007f7151e87a99 in g_mutex_lock () at /lib64/libglib-2.0.so.0 #1 0x00007f7151e435e4 in g_main_context_release () at /lib64/libglib-2.0.so.0 #2 0x00007f7151e443ee in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0 #3 0x00007f7151e4453c in g_main_context_iteration () at /lib64/libglib-2.0.so.0 #4 0x00007f71554e992b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #5 0x00007f715549380a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #6 0x00007f71552c11bc in QThread::exec() () at /lib64/libQt5Core.so.5 #7 0x00007f7157b4dcd5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5 #8 0x00007f71552c601f in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #9 0x00007f71543d865d in start_thread () at /lib64/libpthread.so.0 #10 0x00007f7154be7bfd in clone () at /lib64/libc.so.6 Thread 6 (Thread 0x7f7135426700 (LWP 8999)): #0 0x00007f7154bd76dd in read () at /lib64/libc.so.6 #1 0x00007f7151e867d0 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0 #2 0x00007f7151e43f64 in g_main_context_check () at /lib64/libglib-2.0.so.0 #3 0x00007f7151e443d8 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0 #4 0x00007f7151e4453c in g_main_context_iteration () at /lib64/libglib-2.0.so.0 #5 0x00007f71554e992b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #6 0x00007f715549380a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #7 0x00007f71552c11bc in QThread::exec() () at /lib64/libQt5Core.so.5 #8 0x00007f7157b4dcd5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5 #9 0x00007f71552c601f in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #10 0x00007f71543d865d in start_thread () at /lib64/libpthread.so.0 #11 0x00007f7154be7bfd in clone () at /lib64/libc.so.6 Thread 5 (Thread 0x7f712f3a7700 (LWP 9000)): #0 0x00007f71543ddc3f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0 #1 0x00007f7159ee0fd4 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5 #2 0x00007f7159ee1019 in () at /lib64/libQt5Script.so.5 #3 0x00007f71543d865d in start_thread () at /lib64/libpthread.so.0 #4 0x00007f7154be7bfd in clone () at /lib64/libc.so.6 Thread 4 (Thread 0x7f712c833700 (LWP 9001)): #0 0x00007f7154bd76dd in read () at /lib64/libc.so.6 #1 0x00007f7151e867d0 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0 #2 0x00007f7151e43f64 in g_main_context_check () at /lib64/libglib-2.0.so.0 #3 0x00007f7151e443d8 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0 #4 0x00007f7151e4453c in g_main_context_iteration () at /lib64/libglib-2.0.so.0 #5 0x00007f71554e992b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #6 0x00007f715549380a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #7 0x00007f71552c11bc in QThread::exec() () at /lib64/libQt5Core.so.5 #8 0x00007f71584cd132 in QQuickPixmapReader::run() () at /lib64/libQt5Quick.so.5 #9 0x00007f71552c601f in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #10 0x00007f71543d865d in start_thread () at /lib64/libpthread.so.0 #11 0x00007f7154be7bfd in clone () at /lib64/libc.so.6 Thread 3 (Thread 0x7f7094545700 (LWP 9069)): #0 0x00007f7151e87a99 in g_mutex_lock () at /lib64/libglib-2.0.so.0 #1 0x00007f7151e43a69 in g_main_context_prepare () at /lib64/libglib-2.0.so.0 #2 0x00007f7151e44363 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0 #3 0x00007f7151e4453c in g_main_context_iteration () at /lib64/libglib-2.0.so.0 #4 0x00007f71554e992b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #5 0x00007f715549380a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #6 0x00007f71552c11bc in QThread::exec() () at /lib64/libQt5Core.so.5 #7 0x00007f7157b4dcd5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5 #8 0x00007f71552c601f in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #9 0x00007f71543d865d in start_thread () at /lib64/libpthread.so.0 #10 0x00007f7154be7bfd in clone () at /lib64/libc.so.6 Thread 2 (Thread 0x7f7092d07700 (LWP 9070)): #0 0x00007f7154bdbdbd in poll () at /lib64/libc.so.6 #1 0x00007f7151e44434 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0 #2 0x00007f7151e4453c in g_main_context_iteration () at /lib64/libglib-2.0.so.0 #3 0x00007f71554e992b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #4 0x00007f715549380a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5 #5 0x00007f71552c11bc in QThread::exec() () at /lib64/libQt5Core.so.5 #6 0x00007f7157b4dcd5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5 #7 0x00007f71552c601f in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5 #8 0x00007f71543d865d in start_thread () at /lib64/libpthread.so.0 #9 0x00007f7154be7bfd in clone () at /lib64/libc.so.6 Thread 1 (Thread 0x7f715a49f800 (LWP 8980)): [KCrash Handler] #6 0x00007f71554cb327 in QObject::setProperty(char const*, QVariant const&) () at /lib64/libQt5Core.so.5 #7 0x00007f70938e4458 in Dialog::setActivityName(QString const&) () at /usr/lib64/qt5/qml/org/kde/activities/settings/libkactivitiessettingsplugin.so #8 0x00007f70938e510b in Dialog::initUi(QString const&) () at /usr/lib64/qt5/qml/org/kde/activities/settings/libkactivitiessettingsplugin.so #9 0x00007f70938e6934 in Dialog::Dialog(QString const&, QObject*) () at /usr/lib64/qt5/qml/org/kde/activities/settings/libkactivitiessettingsplugin.so #10 0x00007f70938e3ea3 in ActivitySettings::configureActivity(QString const&) () at /usr/lib64/qt5/qml/org/kde/activities/settings/libkactivitiessettingsplugin.so #11 0x00007f70938e9763 in ActivitySettings::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib64/qt5/qml/org/kde/activities/settings/libkactivitiessettingsplugin.so #12 0x00007f7157b0de19 in QQmlObjectOrGadget::metacall(QMetaObject::Call, int, void**) const () at /lib64/libQt5Qml.so.5 #13 0x00007f7157a902bc in CallMethod(QQmlObjectOrGadget const&, int, int, int, int*, QV4::ExecutionEngine*, QV4::CallData*) [clone .constprop.155] () at /lib64/libQt5Qml.so.5 #14 0x00007f7157a91b1c in CallPrecise(QQmlObjectOrGadget const&, QQmlPropertyData const&, QV4::ExecutionEngine*, QV4::CallData*) [clone .constprop.153] () at /lib64/libQt5Qml.so.5 #15 0x00007f7157a9232d in QV4::QObjectMethod::callInternal(QV4::CallData*) () at /lib64/libQt5Qml.so.5 #16 0x00007f7157aa8766 in QV4::Runtime::callProperty(QV4::ExecutionEngine*, int, QV4::CallData*) () at /lib64/libQt5Qml.so.5 #17 0x00007f70938dbbe8 in () #18 0x0000000000000001 in () #19 0x000000000149f020 in () #20 0x0003000000000000 in () #21 0x00007f7157a94e1a in QV4::QObjectWrapper::getQmlProperty(QQmlContextData*, QV4::String*, QV4::QObjectWrapper::RevisionMode, bool*, bool) () at /lib64/libQt5Qml.so.5 #22 0x0000000000000000 in () Reported using DrKonqi
Ivan, you'll have this crash if the QML fails to load. Given how you construct your file path and given how distros like to meddle, that's quite a plausible candidate.
Git commit eeb2e500d6b75b818b0d9570d517323f93598f65 by Ivan Čukić. Committed on 26/12/2015 at 21:06. Pushed by ivan into branch 'master'. Streamlined the QML loading for KCM - QML path mangling no uses the same variable as CMakeLists - If the setup is broken, the user will get a nice message - Fixed crash on non-existent root object M +2 -3 src/workspace/settings/ActivitiesTab.cpp M +11 -1 src/workspace/settings/CMakeLists.txt M +4 -3 src/workspace/settings/PrivacyTab.cpp M +3 -1 src/workspace/settings/imports/CMakeLists.txt M +37 -10 src/workspace/settings/imports/dialog.cpp A +6 -0 src/workspace/settings/kactivities-kcm-features.h.cmake M +16 -0 src/workspace/settings/utils.h http://commits.kde.org/kactivities/eeb2e500d6b75b818b0d9570d517323f93598f65
If David was right, the commit above should fix the issue.