Bug 375105 - Plasma Shell crashes (restarts) when choosing "Alternatives" from the "start icon" context menu
Summary: Plasma Shell crashes (restarts) when choosing "Alternatives" from the "start ...
Status: RESOLVED FIXED
Alias: None
Product: plasmashell
Classification: Plasma
Component: general (show other bugs)
Version: master
Platform: unspecified Linux
: NOR crash
Target Milestone: 1.0
Assignee: David Edmundson
URL:
Keywords: drkonqi
Depends on:
Blocks:
 
Reported: 2017-01-15 19:49 UTC by Mike
Modified: 2017-01-23 16:59 UTC (History)
4 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments

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Description Mike 2017-01-15 19:49:28 UTC
Application: plasmashell (5.9.90)

Qt Version: 5.7.1
Frameworks Version: 5.30.0
Operating System: Linux 4.10.0-rc3-4-default x86_64
Distribution: "openSUSE Tumbleweed"

-- Information about the crash:
- What I was doing when the application crashed:

Right click on the Panel start icon (KDE icon)
Choose "Alternatives" from the context menu

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fdaf374b8c0 (LWP 1627))]

Thread 11 (Thread 0x7fda0b556700 (LWP 17054)):
#0  0x00007fdaece156dd in read () at /lib64/libc.so.6
#1  0x00007fdae7c8dab0 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fdae7c4934e in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fdae7c49824 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fdae7c4999c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007fdaed73918b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x5503b90, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fdaed6e2aea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fda0b555ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#7  0x00007fdaed510813 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#8  0x00007fdaf0601305 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007fdaed5154c8 in QThreadPrivate::start(void*) (arg=0x56b8930) at thread/qthread_unix.cpp:368
#10 0x00007fdaec3dc454 in start_thread () at /lib64/libpthread.so.0
#11 0x00007fdaece2237f in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7fda2c598700 (LWP 8936)):
#0  0x00007fdaece1966d in poll () at /lib64/libc.so.6
#1  0x00007fdae7c49886 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fdae7c4999c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fdaed73918b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x4125680, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fdaed6e2aea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fda2c597ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fdaed510813 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#6  0x00007fdaf0601305 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007fdaed5154c8 in QThreadPrivate::start(void*) (arg=0x1d58b70) at thread/qthread_unix.cpp:368
#8  0x00007fdaec3dc454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fdaece2237f in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7fda2d59e700 (LWP 7003)):
#0  0x00007fdaece1966d in poll () at /lib64/libc.so.6
#1  0x00007fdae7c49886 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fdae7c4999c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fdaed73918b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x39a5f60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fdaed6e2aea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fda2d59dd00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fdaed510813 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#6  0x00007fdaed5154c8 in QThreadPrivate::start(void*) (arg=0x5843790) at thread/qthread_unix.cpp:368
#7  0x00007fdaec3dc454 in start_thread () at /lib64/libpthread.so.0
#8  0x00007fdaece2237f in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7fda2e589700 (LWP 6429)):
#0  0x00007fdae7c8ee59 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007fdae7c4986b in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fdae7c4999c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fdaed73918b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x50fd940, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fdaed6e2aea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fda2e588c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fdaed510813 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#6  0x00007fdaf11922d6 in  () at /usr/lib64/libQt5Quick.so.5
#7  0x00007fdaed5154c8 in QThreadPrivate::start(void*) (arg=0x58b04f0) at thread/qthread_unix.cpp:368
#8  0x00007fdaec3dc454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fdaece2237f in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7fda50363700 (LWP 1759)):
#0  0x00007fdaec3e210f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fda53f25a4a in  () at /usr/lib64/dri/r600_dri.so
#2  0x00007fda53f25847 in  () at /usr/lib64/dri/r600_dri.so
#3  0x00007fdaec3dc454 in start_thread () at /lib64/libpthread.so.0
#4  0x00007fdaece2237f in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7fdad59a1700 (LWP 1758)):
#0  0x00007fdaec3e210f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fdaf2e34974 in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007fdaf2e349b9 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007fdaec3dc454 in start_thread () at /lib64/libpthread.so.0
#4  0x00007fdaece2237f in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7fdad7658700 (LWP 1728)):
#0  0x00007fdaece156db in read () at /lib64/libc.so.6
#1  0x00007fdae7c8dab0 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fdae7c4934e in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fdae7c49824 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fdae7c4999c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007fdaed73918b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x12702b0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fdaed6e2aea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fdad7657ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#7  0x00007fdaed510813 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#8  0x00007fdaf0601305 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007fdaed5154c8 in QThreadPrivate::start(void*) (arg=0x13396a0) at thread/qthread_unix.cpp:368
#10 0x00007fdaec3dc454 in start_thread () at /lib64/libpthread.so.0
#11 0x00007fdaece2237f in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7fdad9111700 (LWP 1694)):
#0  0x00007fdae7c8ee74 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007fdae7c487be in g_main_context_acquire () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fdae7c49735 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fdae7c4999c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fdaed73918b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1268270, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fdaed6e2aea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fdad9110ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007fdaed510813 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#7  0x00007fdaf0601305 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007fdaed5154c8 in QThreadPrivate::start(void*) (arg=0x1283e70) at thread/qthread_unix.cpp:368
#9  0x00007fdaec3dc454 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fdaece2237f in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fdadbf9a700 (LWP 1649)):
#0  0x00007fdaece1966d in poll () at /lib64/libc.so.6
#1  0x00007fdaf1d613e0 in  () at /usr/lib64/libxcb.so.1
#2  0x00007fdaf1d63179 in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007fdade0f0889 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007fdaed5154c8 in QThreadPrivate::start(void*) (arg=0x117b2a0) at thread/qthread_unix.cpp:368
#5  0x00007fdaec3dc454 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fdaece2237f in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7fdae0676700 (LWP 1646)):
#0  0x00007fdae7c49281 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#1  0x00007fdae7c49824 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fdae7c4999c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fdaed73918b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x11654c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fdaed6e2aea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fdae0675cd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fdaed510813 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:507
#6  0x00007fdaedb4b385 in  () at /usr/lib64/libQt5DBus.so.5
#7  0x00007fdaed5154c8 in QThreadPrivate::start(void*) (arg=0x7fdaeddbcd20) at thread/qthread_unix.cpp:368
#8  0x00007fdaec3dc454 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fdaece2237f in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fdaf374b8c0 (LWP 1627)):
[KCrash Handler]
#6  0x00007fdaf0585d74 in QQmlIncubator::clear() () at /usr/lib64/libQt5Qml.so.5
#7  0x00007fdaf0623c68 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007fdaf06263ab in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007fdaf06286c8 in  () at /usr/lib64/libQt5Qml.so.5
#10 0x00007fdaf0628ec8 in QQmlDelegateModel::_q_modelReset() () at /usr/lib64/libQt5Qml.so.5
#11 0x00007fdaf064c195 in  () at /usr/lib64/libQt5Qml.so.5
#12 0x00007fdaf064c978 in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib64/libQt5Qml.so.5
#13 0x00007fdaed7108a4 in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x7087890, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=18, argv=argv@entry=0x0) at kernel/qobject.cpp:3755
#14 0x00007fdaed711027 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x7087890, m=m@entry=0x7fdaedb29e00 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=18, argv=argv@entry=0x0) at kernel/qobject.cpp:3602
#15 0x00007fdaed787f43 in QAbstractItemModel::modelReset(QAbstractItemModel::QPrivateSignal) (this=this@entry=0x7087890) at .moc/moc_qabstractitemmodel.cpp:655
#16 0x00007fdaed686e6c in QAbstractItemModel::endResetModel() (this=this@entry=0x7087890) at itemmodels/qabstractitemmodel.cpp:3182
#17 0x00007fdaed6aeeb2 in QSortFilterProxyModelPrivate::_q_sourceReset() (this=0x6299f70) at itemmodels/qsortfilterproxymodel.cpp:1322
#18 0x00007fdaed6b32a1 in QSortFilterProxyModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qsortfilterproxymodel.cpp:205
#19 0x00007fdaed710709 in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x7087840, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=18, argv=argv@entry=0x0) at kernel/qobject.cpp:3740
#20 0x00007fdaed711027 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x7087840, m=m@entry=0x7fdaedb29e00 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=18, argv=argv@entry=0x0) at kernel/qobject.cpp:3602
#21 0x00007fdaed787f43 in QAbstractItemModel::modelReset(QAbstractItemModel::QPrivateSignal) (this=this@entry=0x7087840) at .moc/moc_qabstractitemmodel.cpp:655
#22 0x00007fdaed686e6c in QAbstractItemModel::endResetModel() (this=0x7087840) at itemmodels/qabstractitemmodel.cpp:3182
#23 0x00007fda3c3d95d2 in  () at /usr/lib64/qt5/qml/org/kde/plasma/private/shell/libplasmashellprivateplugin.so
#24 0x00007fda3c3d9fa8 in  () at /usr/lib64/qt5/qml/org/kde/plasma/private/shell/libplasmashellprivateplugin.so
#25 0x00007fda3c3e0bb0 in  () at /usr/lib64/qt5/qml/org/kde/plasma/private/shell/libplasmashellprivateplugin.so
#26 0x00007fda3c3e1f5b in  () at /usr/lib64/qt5/qml/org/kde/plasma/private/shell/libplasmashellprivateplugin.so
#27 0x00007fdaf05f777c in  () at /usr/lib64/libQt5Qml.so.5
#28 0x00007fdaf0586172 in  () at /usr/lib64/libQt5Qml.so.5
#29 0x00007fdaf0586d74 in QQmlIncubationController::incubateFor(int) () at /usr/lib64/libQt5Qml.so.5
#30 0x00007fdaf1684e5c in  () at /usr/lib64/libKF5Declarative.so.5
#31 0x00007fdaf0585b76 in  () at /usr/lib64/libQt5Qml.so.5
#32 0x00007fdaf0586263 in  () at /usr/lib64/libQt5Qml.so.5
#33 0x00007fdaf0586d74 in QQmlIncubationController::incubateFor(int) () at /usr/lib64/libQt5Qml.so.5
#34 0x00007fdaf1684e5c in  () at /usr/lib64/libKF5Declarative.so.5
#35 0x00007fdaf0586b82 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () at /usr/lib64/libQt5Qml.so.5
#36 0x00007fdaf0581b98 in QQmlComponent::create(QQmlIncubator&, QQmlContext*, QQmlContext*) () at /usr/lib64/libQt5Qml.so.5
#37 0x00007fdaf12d6e1f in  () at /usr/lib64/libQt5Quick.so.5
#38 0x00007fdaf12d6fc8 in  () at /usr/lib64/libQt5Quick.so.5
#39 0x00007fdaf05f777c in  () at /usr/lib64/libQt5Qml.so.5
#40 0x00007fdaf0586172 in  () at /usr/lib64/libQt5Qml.so.5
#41 0x00007fdaf0586d74 in QQmlIncubationController::incubateFor(int) () at /usr/lib64/libQt5Qml.so.5
#42 0x00007fdaf1684e5c in  () at /usr/lib64/libKF5Declarative.so.5
#43 0x00007fdaf0585b76 in  () at /usr/lib64/libQt5Qml.so.5
#44 0x00007fdaf0586263 in  () at /usr/lib64/libQt5Qml.so.5
#45 0x00007fdaf0586d74 in QQmlIncubationController::incubateFor(int) () at /usr/lib64/libQt5Qml.so.5
#46 0x00007fdaf1684e5c in  () at /usr/lib64/libKF5Declarative.so.5
#47 0x00007fdaf0585b76 in  () at /usr/lib64/libQt5Qml.so.5
#48 0x00007fdaf0586263 in  () at /usr/lib64/libQt5Qml.so.5
#49 0x00007fdaf0586d74 in QQmlIncubationController::incubateFor(int) () at /usr/lib64/libQt5Qml.so.5
#50 0x00007fdaf1684e5c in  () at /usr/lib64/libKF5Declarative.so.5
#51 0x00007fdaf0586b82 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () at /usr/lib64/libQt5Qml.so.5
#52 0x00007fdaf0581b98 in QQmlComponent::create(QQmlIncubator&, QQmlContext*, QQmlContext*) () at /usr/lib64/libQt5Qml.so.5
#53 0x00007fdaf12d6e1f in  () at /usr/lib64/libQt5Quick.so.5
#54 0x00007fdaf12d6fc8 in  () at /usr/lib64/libQt5Quick.so.5
#55 0x00007fdaf05f777c in  () at /usr/lib64/libQt5Qml.so.5
#56 0x00007fdaf0586172 in  () at /usr/lib64/libQt5Qml.so.5
#57 0x00007fdaf05866bb in  () at /usr/lib64/libQt5Qml.so.5
#58 0x00007fdaf0586d74 in QQmlIncubationController::incubateFor(int) () at /usr/lib64/libQt5Qml.so.5
#59 0x00007fdaf1684e5c in  () at /usr/lib64/libKF5Declarative.so.5
#60 0x00007fdaf0585b76 in  () at /usr/lib64/libQt5Qml.so.5
#61 0x00007fdaf0586263 in  () at /usr/lib64/libQt5Qml.so.5
#62 0x00007fdaf0586d74 in QQmlIncubationController::incubateFor(int) () at /usr/lib64/libQt5Qml.so.5
#63 0x00007fdaf1684e5c in  () at /usr/lib64/libKF5Declarative.so.5
#64 0x00007fdaf0586b82 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () at /usr/lib64/libQt5Qml.so.5
#65 0x00007fdaf0581b98 in QQmlComponent::create(QQmlIncubator&, QQmlContext*, QQmlContext*) () at /usr/lib64/libQt5Qml.so.5
#66 0x00007fdaf12d6e1f in  () at /usr/lib64/libQt5Quick.so.5
#67 0x00007fdaf12d6fc8 in  () at /usr/lib64/libQt5Quick.so.5
#68 0x00007fdaf05f777c in  () at /usr/lib64/libQt5Qml.so.5
#69 0x00007fdaf0586172 in  () at /usr/lib64/libQt5Qml.so.5
#70 0x00007fdaf0586d74 in QQmlIncubationController::incubateFor(int) () at /usr/lib64/libQt5Qml.so.5
#71 0x00007fdaf1684e5c in  () at /usr/lib64/libKF5Declarative.so.5
#72 0x00007fdaf0585b76 in  () at /usr/lib64/libQt5Qml.so.5
#73 0x00007fdaf0586263 in  () at /usr/lib64/libQt5Qml.so.5
#74 0x00007fdaf0586d74 in QQmlIncubationController::incubateFor(int) () at /usr/lib64/libQt5Qml.so.5
#75 0x00007fdaf1684e5c in  () at /usr/lib64/libKF5Declarative.so.5
#76 0x00007fdaf0586b82 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () at /usr/lib64/libQt5Qml.so.5
#77 0x00007fdaf0581b98 in QQmlComponent::create(QQmlIncubator&, QQmlContext*, QQmlContext*) () at /usr/lib64/libQt5Qml.so.5
#78 0x00007fdaf12d6e1f in  () at /usr/lib64/libQt5Quick.so.5
#79 0x00007fdaf12d6fc8 in  () at /usr/lib64/libQt5Quick.so.5
#80 0x00007fdaf05f777c in  () at /usr/lib64/libQt5Qml.so.5
#81 0x00007fdaf0586172 in  () at /usr/lib64/libQt5Qml.so.5
#82 0x00007fdaf0586d74 in QQmlIncubationController::incubateFor(int) () at /usr/lib64/libQt5Qml.so.5
#83 0x00007fdaf1684e5c in  () at /usr/lib64/libKF5Declarative.so.5
#84 0x00007fdaf0586b82 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () at /usr/lib64/libQt5Qml.so.5
#85 0x00007fdaf0581b98 in QQmlComponent::create(QQmlIncubator&, QQmlContext*, QQmlContext*) () at /usr/lib64/libQt5Qml.so.5
#86 0x00007fdaf12d6e1f in  () at /usr/lib64/libQt5Quick.so.5
#87 0x00007fdaf12d6fc8 in  () at /usr/lib64/libQt5Quick.so.5
#88 0x00007fdaf12d7c98 in  () at /usr/lib64/libQt5Quick.so.5
#89 0x00007fdaf12d7dab in  () at /usr/lib64/libQt5Quick.so.5
#90 0x00007fdaf057e5b5 in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#91 0x00007fdaf0580303 in QQmlPropertyPrivate::writeValueProperty(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#92 0x00007fdaf05ecb15 in QQmlBinding::write(QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#93 0x00007fdaf05edb87 in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#94 0x00007fdaf05ee5ee in QQmlBinding::refresh() () at /usr/lib64/libQt5Qml.so.5
#95 0x00007fdaf05c3574 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/lib64/libQt5Qml.so.5
#96 0x00007fdaf056e28c in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /usr/lib64/libQt5Qml.so.5
#97 0x00007fdaed710e24 in QMetaObject::activate(QObject*, int, int, void**) (sender=0x640afb0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3618
#98 0x00007fdaf056a007 in QQmlVMEMetaObject::metaCall(QObject*, QMetaObject::Call, int, void**) () at /usr/lib64/libQt5Qml.so.5
#99 0x00007fdaf0569b76 in QQmlVMEMetaObject::metaCall(QObject*, QMetaObject::Call, int, void**) () at /usr/lib64/libQt5Qml.so.5
#100 0x00007fdaf0569b76 in QQmlVMEMetaObject::metaCall(QObject*, QMetaObject::Call, int, void**) () at /usr/lib64/libQt5Qml.so.5
#101 0x00007fdaf0569b76 in QQmlVMEMetaObject::metaCall(QObject*, QMetaObject::Call, int, void**) () at /usr/lib64/libQt5Qml.so.5
#102 0x00007fdaf057ebc2 in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#103 0x00007fdaf0580303 in QQmlPropertyPrivate::writeValueProperty(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#104 0x00007fdaf05ecb15 in QQmlBinding::write(QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#105 0x00007fdaf05edb87 in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) () at /usr/lib64/libQt5Qml.so.5
#106 0x00007fdaf05ee5ee in QQmlBinding::refresh() () at /usr/lib64/libQt5Qml.so.5
#107 0x00007fdaf05c3574 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/lib64/libQt5Qml.so.5
#108 0x00007fdaf056e28c in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /usr/lib64/libQt5Qml.so.5
#109 0x00007fdaed710e24 in QMetaObject::activate(QObject*, int, int, void**) (sender=0x64c0790, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3618
#110 0x00007fdaf12d7fb5 in  () at /usr/lib64/libQt5Quick.so.5
#111 0x00007fdaf0586745 in  () at /usr/lib64/libQt5Qml.so.5
#112 0x00007fdaf0586d74 in QQmlIncubationController::incubateFor(int) () at /usr/lib64/libQt5Qml.so.5
#113 0x00007fdaf1684e5c in  () at /usr/lib64/libKF5Declarative.so.5
#114 0x00007fdaf0586b82 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () at /usr/lib64/libQt5Qml.so.5
#115 0x00007fdaf0581b98 in QQmlComponent::create(QQmlIncubator&, QQmlContext*, QQmlContext*) () at /usr/lib64/libQt5Qml.so.5
#116 0x00007fdaf12d6e1f in  () at /usr/lib64/libQt5Quick.so.5
#117 0x00007fdaf12d6fc8 in  () at /usr/lib64/libQt5Quick.so.5
#118 0x00007fdaf05f777c in  () at /usr/lib64/libQt5Qml.so.5
#119 0x00007fdaf0586172 in  () at /usr/lib64/libQt5Qml.so.5
#120 0x00007fdaf0586d74 in QQmlIncubationController::incubateFor(int) () at /usr/lib64/libQt5Qml.so.5
#121 0x00007fdaf1684e5c in  () at /usr/lib64/libKF5Declarative.so.5
#122 0x00007fdaf0585b76 in  () at /usr/lib64/libQt5Qml.so.5
#123 0x00007fdaf0586263 in  () at /usr/lib64/libQt5Qml.so.5
#124 0x00007fdaf0586d74 in QQmlIncubationController::incubateFor(int) () at /usr/lib64/libQt5Qml.so.5
#125 0x00007fdaf1684e5c in  () at /usr/lib64/libKF5Declarative.so.5
#126 0x00007fdaf0586b82 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () at /usr/lib64/libQt5Qml.so.5
#127 0x00007fdaf0581b98 in QQmlComponent::create(QQmlIncubator&, QQmlContext*, QQmlContext*) () at /usr/lib64/libQt5Qml.so.5
#128 0x00007fdaf12d6e1f in  () at /usr/lib64/libQt5Quick.so.5
#129 0x00007fdaf12d6fc8 in  () at /usr/lib64/libQt5Quick.so.5
#130 0x00007fdaf05f777c in  () at /usr/lib64/libQt5Qml.so.5
#131 0x00007fdaf0586172 in  () at /usr/lib64/libQt5Qml.so.5
#132 0x00007fdaf0586c38 in  () at /usr/lib64/libQt5Qml.so.5
#133 0x00007fdaf0586c9c in QQmlIncubator::forceCompletion() () at /usr/lib64/libQt5Qml.so.5
#134 0x00007fdaf1680fd2 in KDeclarative::QmlObject::rootObject() const () at /usr/lib64/libKF5Declarative.so.5
#135 0x000000000043cace in  ()
#136 0x00007fdaed7115b9 in QObject::event(QEvent*) (this=0x1242520, e=<optimized out>) at kernel/qobject.cpp:1263
#137 0x00007fdaee65feac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#138 0x00007fdaee667661 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#139 0x00007fdaed6e4b00 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x1242520, event=event@entry=0x65f0e30) at kernel/qcoreapplication.cpp:988
#140 0x00007fdaed6e728d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (event=0x65f0e30, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#141 0x00007fdaed6e728d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1146380) at kernel/qcoreapplication.cpp:1649
#142 0x00007fdaed6e76f8 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1503
#143 0x00007fdaed738d63 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x11c5d60) at kernel/qeventdispatcher_glib.cpp:276
#144 0x00007fdae7c49687 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#145 0x00007fdae7c498f0 in  () at /usr/lib64/libglib-2.0.so.0
#146 0x00007fdae7c4999c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#147 0x00007fdaed73916f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1158780, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#148 0x00007fdaed6e2aea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffcc1425930, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#149 0x00007fdaed6eb25c in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1261
#150 0x000000000041e9c2 in  ()
#151 0x00007fdaecd59291 in __libc_start_main () at /lib64/libc.so.6
#152 0x000000000041ed4a in _start ()

Reported using DrKonqi
Comment 1 Marco Martin 2017-01-17 10:19:31 UTC
this crashes *before* actually choosing an alternative?
Comment 2 Mike 2017-01-17 16:20:02 UTC
Yep, it's weird, happens as soon as I select the menu item.  Is there a log that might have some add'l info?
Comment 3 rооt 2017-01-18 13:17:23 UTC
Application: plasmashell (5.9.90)

Qt Version: 5.7.1
Frameworks Version: 5.31.0
Operating System: Linux config-4.10.0-2-generic x86_64
Distribution: Ubuntu Zesty Zapus (development branch)

-- Information about the crash:
- What I was doing when the application crashed:

Right click on the Panel start icon (KDE icon)
Choose "Alternatives" from the context menu

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff3bd825900 (LWP 1061))]

Thread 7 (Thread 0x7ff2f13c7700 (LWP 1315)):
#0  0x00007ff3b73e310d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ff3b204da36 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff3b204db4c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff3b7d06eeb in QEventDispatcherGlib::processEvents (this=0x7ff2ec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007ff3b7cb084a in QEventLoop::exec (this=this@entry=0x7ff2f13c6ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007ff3b7addfe3 in QThread::exec (this=this@entry=0x564bc331ce20) at thread/qthread.cpp:507
#6  0x00007ff3ba9a7df5 in QQmlThreadPrivate::run (this=0x564bc331ce20) at qml/ftw/qqmlthread.cpp:147
#7  0x00007ff3b7ae2c98 in QThreadPrivate::start (arg=0x564bc331ce20) at thread/qthread_unix.cpp:368
#8  0x00007ff3b69856ca in start_thread (arg=0x7ff2f13c7700) at pthread_create.c:333
#9  0x00007ff3b73ef0ff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 6 (Thread 0x7ff309998700 (LWP 1141)):
#0  0x00007ff3b2093044 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff3b204d3d4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff3b204d9d4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff3b204db4c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff3b7d06eeb in QEventDispatcherGlib::processEvents (this=0x7ff3040008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007ff3b7cb084a in QEventLoop::exec (this=this@entry=0x7ff309997c50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007ff3b7addfe3 in QThread::exec (this=this@entry=0x564bc01f8cc0) at thread/qthread.cpp:507
#7  0x00007ff3bb52e4c6 in QQuickPixmapReader::run (this=0x564bc01f8cc0) at util/qquickpixmapcache.cpp:822
#8  0x00007ff3b7ae2c98 in QThreadPrivate::start (arg=0x564bc01f8cc0) at thread/qthread_unix.cpp:368
#9  0x00007ff3b69856ca in start_thread (arg=0x7ff309998700) at pthread_create.c:333
#10 0x00007ff3b73ef0ff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 5 (Thread 0x7ff393fff700 (LWP 1140)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff3bd1992c4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007ff3bd199309 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007ff3b69856ca in start_thread (arg=0x7ff393fff700) at pthread_create.c:333
#4  0x00007ff3b73ef0ff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 4 (Thread 0x7ff399959700 (LWP 1139)):
#0  0x00007ff3b73e310d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ff3b204da36 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff3b204db4c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff3b7d06eeb in QEventDispatcherGlib::processEvents (this=0x7ff38c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007ff3b7cb084a in QEventLoop::exec (this=this@entry=0x7ff399958ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007ff3b7addfe3 in QThread::exec (this=this@entry=0x564bbfd95e10) at thread/qthread.cpp:507
#6  0x00007ff3ba9a7df5 in QQmlThreadPrivate::run (this=0x564bbfd95e10) at qml/ftw/qqmlthread.cpp:147
#7  0x00007ff3b7ae2c98 in QThreadPrivate::start (arg=0x564bbfd95e10) at thread/qthread_unix.cpp:368
#8  0x00007ff3b69856ca in start_thread (arg=0x7ff399959700) at pthread_create.c:333
#9  0x00007ff3b73ef0ff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 3 (Thread 0x7ff39b7cb700 (LWP 1138)):
#0  0x00007ff3b204db27 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff3b7d06eeb in QEventDispatcherGlib::processEvents (this=0x7ff3940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#2  0x00007ff3b7cb084a in QEventLoop::exec (this=this@entry=0x7ff39b7caca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#3  0x00007ff3b7addfe3 in QThread::exec (this=this@entry=0x564bbfd4f4b0) at thread/qthread.cpp:507
#4  0x00007ff3ba9a7df5 in QQmlThreadPrivate::run (this=0x564bbfd4f4b0) at qml/ftw/qqmlthread.cpp:147
#5  0x00007ff3b7ae2c98 in QThreadPrivate::start (arg=0x564bbfd4f4b0) at thread/qthread_unix.cpp:368
#6  0x00007ff3b69856ca in start_thread (arg=0x7ff39b7cb700) at pthread_create.c:333
#7  0x00007ff3b73ef0ff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7ff3a9786700 (LWP 1066)):
#0  0x00007ff3b73e310d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ff3b204da36 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff3b204db4c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff3b7d06eeb in QEventDispatcherGlib::processEvents (this=0x7ff3a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007ff3b7cb084a in QEventLoop::exec (this=this@entry=0x7ff3a9785c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007ff3b7addfe3 in QThread::exec (this=this@entry=0x7ff3b838bd20 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:507
#6  0x00007ff3b811a5c5 in QDBusConnectionManager::run (this=0x7ff3b838bd20 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#7  0x00007ff3b7ae2c98 in QThreadPrivate::start (arg=0x7ff3b838bd20 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:368
#8  0x00007ff3b69856ca in start_thread (arg=0x7ff3a9786700) at pthread_create.c:333
#9  0x00007ff3b73ef0ff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7ff3bd825900 (LWP 1061)):
[KCrash Handler]
#6  QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::data (this=<error reading variable: Cannot access memory at address 0x30>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qscopedpointer.h:141
#7  qGetPtrHelper<QScopedPointer<QObjectData> > (p=<error reading variable: Cannot access memory at address 0x30>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qglobal.h:980
#8  QQmlEngine::d_func (this=<error reading variable: Cannot access memory at address 0x30>) at ../../include/QtQml/5.7.1/QtQml/private/../../../../../src/qml/qml/qqmlengine.h:158
#9  QQmlEnginePrivate::get (e=<error reading variable: Cannot access memory at address 0x30>) at ../../include/QtQml/5.7.1/QtQml/private/../../../../../src/qml/qml/qqmlengine_p.h:405
#10 QQmlIncubator::clear (this=this@entry=0x564bc35a1750) at qml/qqmlincubator.cpp:569
#11 0x00007ff3ba9ca758 in QQmlDelegateModelPrivate::releaseIncubator (this=this@entry=0x564bc34cc360, incubationTask=0x564bc35a1750) at types/qqmldelegatemodel.cpp:846
#12 0x00007ff3ba9cce9b in QQmlDelegateModelPrivate::itemsRemoved (this=this@entry=0x564bc34cc360, removes=..., translatedRemoves=translatedRemoves@entry=0x7fff7bd122f0, movedItems=movedItems@entry=0x7fff7bd122e0) at types/qqmldelegatemodel.cpp:1320
#13 0x00007ff3ba9cf1b8 in QQmlDelegateModelPrivate::itemsMoved (this=this@entry=0x564bc34cc360, removes=..., inserts=...) at types/qqmldelegatemodel.cpp:1400
#14 0x00007ff3ba9cf9b8 in QQmlDelegateModel::_q_modelReset (this=0x564bc34af5f0) at types/qqmldelegatemodel.cpp:1497
#15 0x00007ff3ba9f2c85 in QQmlDelegateModel::qt_static_metacall (_o=_o@entry=0x564bc34af5f0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=7, _a=_a@entry=0x7fff7bd12630) at .moc/moc_qqmldelegatemodel_p.cpp:193
#16 0x00007ff3ba9f3468 in QQmlDelegateModel::qt_metacall (this=0x564bc34af5f0, _c=QMetaObject::InvokeMetaMethod, _id=7, _a=0x7fff7bd12630) at .moc/moc_qqmldelegatemodel_p.cpp:334
#17 0x00007ff3b7cde604 in QMetaObject::activate (sender=sender@entry=0x564bc3499140, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=18, argv=argv@entry=0x0) at kernel/qobject.cpp:3755
#18 0x00007ff3b7cded87 in QMetaObject::activate (sender=sender@entry=0x564bc3499140, m=m@entry=0x7ff3b80fae00 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=18, argv=argv@entry=0x0) at kernel/qobject.cpp:3602
#19 0x00007ff3b7d55993 in QAbstractItemModel::modelReset (this=this@entry=0x564bc3499140) at .moc/moc_qabstractitemmodel.cpp:655
#20 0x00007ff3b7c54bcc in QAbstractItemModel::endResetModel (this=this@entry=0x564bc3499140) at itemmodels/qabstractitemmodel.cpp:3182
#21 0x00007ff3b7c7cc12 in QSortFilterProxyModelPrivate::_q_sourceReset (this=0x564bc34a4100) at itemmodels/qsortfilterproxymodel.cpp:1322
#22 0x00007ff3b7c81001 in QSortFilterProxyModel::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qsortfilterproxymodel.cpp:205
#23 0x00007ff3b7cde469 in QMetaObject::activate (sender=sender@entry=0x564bc34990f0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=18, argv=argv@entry=0x0) at kernel/qobject.cpp:3740
#24 0x00007ff3b7cded87 in QMetaObject::activate (sender=sender@entry=0x564bc34990f0, m=m@entry=0x7ff3b80fae00 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=18, argv=argv@entry=0x0) at kernel/qobject.cpp:3602
#25 0x00007ff3b7d55993 in QAbstractItemModel::modelReset (this=this@entry=0x564bc34990f0) at .moc/moc_qabstractitemmodel.cpp:655
#26 0x00007ff3b7c54bcc in QAbstractItemModel::endResetModel (this=0x564bc34990f0) at itemmodels/qabstractitemmodel.cpp:3182
#27 0x00007ff2f0113472 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/shell/libplasmashellprivateplugin.so
#28 0x00007ff2f0113e48 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/shell/libplasmashellprivateplugin.so
#29 0x00007ff2f011aa10 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/shell/libplasmashellprivateplugin.so
#30 0x00007ff2f011bdbb in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/shell/libplasmashellprivateplugin.so
#31 0x00007ff3ba99e2ec in QQmlObjectCreator::finalize (this=0x564bc3486080, interrupt=...) at qml/qqmlobjectcreator.cpp:1241
#32 0x00007ff3ba92cad2 in QQmlIncubatorPrivate::incubate (this=0x564bc32ea000, i=...) at qml/qqmlincubator.cpp:354
#33 0x00007ff3ba92d6d4 in QQmlIncubationController::incubateFor (this=0x564bc33a7960, msecs=<optimized out>) at qml/qqmlincubator.cpp:401
#34 0x00007ff3bba2058c in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#35 0x00007ff3ba92c4d6 in QQmlIncubatorPrivate::clear (this=0x564bc35c0e90) at qml/qqmlincubator.cpp:155
#36 0x00007ff3ba92cbc3 in QQmlIncubatorPrivate::incubate (this=0x564bc35c0e90, i=...) at qml/qqmlincubator.cpp:366
#37 0x00007ff3ba92d6d4 in QQmlIncubationController::incubateFor (this=0x564bc33a7960, msecs=<optimized out>) at qml/qqmlincubator.cpp:401
#38 0x00007ff3bba2058c in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#39 0x00007ff3ba92d4e2 in QQmlEnginePrivate::incubate (this=this@entry=0x564bc32a2390, i=..., forContext=forContext@entry=0x564bc35c0db0) at qml/qqmlincubator.cpp:103
#40 0x00007ff3ba9284f8 in QQmlComponent::create (this=<optimized out>, incubator=..., context=<optimized out>, forContext=forContext@entry=0x0) at qml/qqmlcomponent.cpp:1069
#41 0x00007ff3bb672fff in QQuickLoaderPrivate::_q_sourceLoaded (this=this@entry=0x564bc34af790) at items/qquickloader.cpp:721
#42 0x00007ff3bb6731a8 in QQuickLoaderPrivate::load (this=0x564bc34af790) at items/qquickloader.cpp:603
#43 0x00007ff3ba99e2ec in QQmlObjectCreator::finalize (this=0x564bc3486080, interrupt=...) at qml/qqmlobjectcreator.cpp:1241
#44 0x00007ff3ba92cad2 in QQmlIncubatorPrivate::incubate (this=0x564bc32ea000, i=...) at qml/qqmlincubator.cpp:354
#45 0x00007ff3ba92d6d4 in QQmlIncubationController::incubateFor (this=0x564bc33a7960, msecs=<optimized out>) at qml/qqmlincubator.cpp:401
#46 0x00007ff3bba2058c in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#47 0x00007ff3ba92c4d6 in QQmlIncubatorPrivate::clear (this=0x564bc3588bb0) at qml/qqmlincubator.cpp:155
#48 0x00007ff3ba92cbc3 in QQmlIncubatorPrivate::incubate (this=0x564bc3588bb0, i=...) at qml/qqmlincubator.cpp:366
#49 0x00007ff3ba92d6d4 in QQmlIncubationController::incubateFor (this=0x564bc33a7960, msecs=<optimized out>) at qml/qqmlincubator.cpp:401
#50 0x00007ff3bba2058c in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#51 0x00007ff3ba92d4e2 in QQmlEnginePrivate::incubate (this=this@entry=0x564bc32a2390, i=..., forContext=forContext@entry=0x564bc3588ad0) at qml/qqmlincubator.cpp:103
#52 0x00007ff3ba9284f8 in QQmlComponent::create (this=<optimized out>, incubator=..., context=<optimized out>, forContext=forContext@entry=0x0) at qml/qqmlcomponent.cpp:1069
#53 0x00007ff3bb672fff in QQuickLoaderPrivate::_q_sourceLoaded (this=this@entry=0x564bc34c9b80) at items/qquickloader.cpp:721
#54 0x00007ff3bb6731a8 in QQuickLoaderPrivate::load (this=0x564bc34c9b80) at items/qquickloader.cpp:603
#55 0x00007ff3ba99e2ec in QQmlObjectCreator::finalize (this=0x564bc3486080, interrupt=...) at qml/qqmlobjectcreator.cpp:1241
#56 0x00007ff3ba92cad2 in QQmlIncubatorPrivate::incubate (this=0x564bc32ea000, i=...) at qml/qqmlincubator.cpp:354
#57 0x00007ff3ba92d6d4 in QQmlIncubationController::incubateFor (this=0x564bc33a7960, msecs=<optimized out>) at qml/qqmlincubator.cpp:401
#58 0x00007ff3bba2058c in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#59 0x00007ff3ba92c4d6 in QQmlIncubatorPrivate::clear (this=0x564bc35a17b0) at qml/qqmlincubator.cpp:155
#60 0x00007ff3ba92cbc3 in QQmlIncubatorPrivate::incubate (this=0x564bc35a17b0, i=...) at qml/qqmlincubator.cpp:366
#61 0x00007ff3ba92d6d4 in QQmlIncubationController::incubateFor (this=0x564bc33a7960, msecs=<optimized out>) at qml/qqmlincubator.cpp:401
#62 0x00007ff3bba2058c in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#63 0x00007ff3ba92c4d6 in QQmlIncubatorPrivate::clear (this=0x564bc3581720) at qml/qqmlincubator.cpp:155
#64 0x00007ff3ba92cbc3 in QQmlIncubatorPrivate::incubate (this=0x564bc3581720, i=...) at qml/qqmlincubator.cpp:366
#65 0x00007ff3ba92d6d4 in QQmlIncubationController::incubateFor (this=0x564bc33a7960, msecs=<optimized out>) at qml/qqmlincubator.cpp:401
#66 0x00007ff3bba2058c in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#67 0x00007ff3ba92c4d6 in QQmlIncubatorPrivate::clear (this=0x564bc356cf40) at qml/qqmlincubator.cpp:155
#68 0x00007ff3ba92cbc3 in QQmlIncubatorPrivate::incubate (this=0x564bc356cf40, i=...) at qml/qqmlincubator.cpp:366
#69 0x00007ff3ba92d6d4 in QQmlIncubationController::incubateFor (this=0x564bc33a7960, msecs=<optimized out>) at qml/qqmlincubator.cpp:401
#70 0x00007ff3bba2058c in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#71 0x00007ff3ba92d4e2 in QQmlEnginePrivate::incubate (this=this@entry=0x564bc32a2390, i=..., forContext=forContext@entry=0x564bc356ce80) at qml/qqmlincubator.cpp:103
#72 0x00007ff3ba9284f8 in QQmlComponent::create (this=<optimized out>, incubator=..., context=<optimized out>, forContext=forContext@entry=0x0) at qml/qqmlcomponent.cpp:1069
#73 0x00007ff3bb672fff in QQuickLoaderPrivate::_q_sourceLoaded (this=this@entry=0x564bc3578880) at items/qquickloader.cpp:721
#74 0x00007ff3bb6731a8 in QQuickLoaderPrivate::load (this=0x564bc3578880) at items/qquickloader.cpp:603
#75 0x00007ff3ba99e2ec in QQmlObjectCreator::finalize (this=0x564bc356c280, interrupt=...) at qml/qqmlobjectcreator.cpp:1241
#76 0x00007ff3ba92cad2 in QQmlIncubatorPrivate::incubate (this=0x564bc3581720, i=...) at qml/qqmlincubator.cpp:354
#77 0x00007ff3ba92d6d4 in QQmlIncubationController::incubateFor (this=0x564bc33a7960, msecs=<optimized out>) at qml/qqmlincubator.cpp:401
#78 0x00007ff3bba2058c in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#79 0x00007ff3ba92c4d6 in QQmlIncubatorPrivate::clear (this=0x564bc3585de0) at qml/qqmlincubator.cpp:155
#80 0x00007ff3ba92cbc3 in QQmlIncubatorPrivate::incubate (this=0x564bc3585de0, i=...) at qml/qqmlincubator.cpp:366
#81 0x00007ff3ba92d6d4 in QQmlIncubationController::incubateFor (this=0x564bc33a7960, msecs=<optimized out>) at qml/qqmlincubator.cpp:401
#82 0x00007ff3bba2058c in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#83 0x00007ff3ba92d4e2 in QQmlEnginePrivate::incubate (this=this@entry=0x564bc32a2390, i=..., forContext=forContext@entry=0x564bc3585d20) at qml/qqmlincubator.cpp:103
#84 0x00007ff3ba9284f8 in QQmlComponent::create (this=<optimized out>, incubator=..., context=<optimized out>, forContext=forContext@entry=0x0) at qml/qqmlcomponent.cpp:1069
#85 0x00007ff3bb672fff in QQuickLoaderPrivate::_q_sourceLoaded (this=this@entry=0x564bc3582890) at items/qquickloader.cpp:721
#86 0x00007ff3bb6731a8 in QQuickLoaderPrivate::load (this=0x564bc3582890) at items/qquickloader.cpp:603
#87 0x00007ff3ba99e2ec in QQmlObjectCreator::finalize (this=0x564bc356c280, interrupt=...) at qml/qqmlobjectcreator.cpp:1241
#88 0x00007ff3ba92cad2 in QQmlIncubatorPrivate::incubate (this=0x564bc3581720, i=...) at qml/qqmlincubator.cpp:354
#89 0x00007ff3ba92d6d4 in QQmlIncubationController::incubateFor (this=0x564bc33a7960, msecs=<optimized out>) at qml/qqmlincubator.cpp:401
#90 0x00007ff3bba2058c in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#91 0x00007ff3ba92d4e2 in QQmlEnginePrivate::incubate (this=this@entry=0x564bc32a2390, i=..., forContext=forContext@entry=0x564bc34dc460) at qml/qqmlincubator.cpp:103
#92 0x00007ff3ba9284f8 in QQmlComponent::create (this=<optimized out>, incubator=..., context=<optimized out>, forContext=forContext@entry=0x0) at qml/qqmlcomponent.cpp:1069
#93 0x00007ff3bb672fff in QQuickLoaderPrivate::_q_sourceLoaded (this=this@entry=0x564bc348b760) at items/qquickloader.cpp:721
#94 0x00007ff3bb6731a8 in QQuickLoaderPrivate::load (this=0x564bc348b760) at items/qquickloader.cpp:603
#95 0x00007ff3bb673e78 in QQuickLoader::qt_static_metacall (_o=_o@entry=0x564bc348b1b0, _c=_c@entry=QMetaObject::WriteProperty, _id=_id@entry=2, _a=_a@entry=0x7fff7bd14410) at .moc/moc_qquickloader_p.cpp:258
#96 0x00007ff3bb673f8b in QQuickLoader::qt_metacall (this=0x564bc348b1b0, _c=QMetaObject::WriteProperty, _id=2, _a=0x7fff7bd14410) at .moc/moc_qquickloader_p.cpp:309
#97 0x00007ff3ba924f15 in QQmlPropertyPrivate::write (object=object@entry=0x564bc348b1b0, property=..., value=..., context=context@entry=0x564bc348a2e0, flags=...) at qml/qqmlproperty.cpp:1281
#98 0x00007ff3ba926c63 in QQmlPropertyPrivate::writeValueProperty (object=0x564bc348b1b0, core=..., value=..., context=0x564bc348a2e0, flags=...) at qml/qqmlproperty.cpp:1183
#99 0x00007ff3ba993475 in QQmlBinding::write (this=this@entry=0x564bc348b900, core=..., result=..., isUndefined=<optimized out>, flags=...) at qml/qqmlbinding.cpp:333
#100 0x00007ff3ba9944e7 in QQmlBinding::update (this=0x564bc348b900, flags=...) at qml/qqmlbinding.cpp:197
#101 0x00007ff3ba994f4e in QQmlBinding::refresh (this=<optimized out>) at qml/qqmlbinding.cpp:409
#102 0x00007ff3ba969ed4 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:100
#103 0x00007ff3ba914bec in QQmlData::signalEmitted (object=0x564bc348a440, index=30, a=0x0) at qml/qqmlengine.cpp:780
#104 0x00007ff3b7cdeb84 in QMetaObject::activate (sender=0x564bc348a440, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=argv@entry=0x0) at kernel/qobject.cpp:3618
#105 0x00007ff3ba90f2a5 in QQmlVMEMetaObject::activate (this=this@entry=0x564bc348a660, object=<optimized out>, index=<optimized out>, args=args@entry=0x0) at qml/qqmlvmemetaobject.cpp:1205
#106 0x00007ff3ba910957 in QQmlVMEMetaObject::metaCall (this=0x564bc348a660, o=<optimized out>, c=<optimized out>, _id=<optimized out>, a=<optimized out>) at qml/qqmlvmemetaobject.cpp:755
#107 0x00007ff3ba9104c6 in QQmlVMEMetaObject::metaCall (this=0x564bc348bbf0, o=<optimized out>, c=QMetaObject::WriteProperty, _id=42, a=0x7fff7bd16620) at qml/qqmlvmemetaobject.cpp:883
#108 0x00007ff3ba9104c6 in QQmlVMEMetaObject::metaCall (this=0x564bc34dde10, o=<optimized out>, c=QMetaObject::WriteProperty, _id=42, a=0x7fff7bd16620) at qml/qqmlvmemetaobject.cpp:883
#109 0x00007ff3ba9104c6 in QQmlVMEMetaObject::metaCall (this=0x564bc34ded90, o=<optimized out>, c=QMetaObject::WriteProperty, _id=42, a=0x7fff7bd16620) at qml/qqmlvmemetaobject.cpp:883
#110 0x00007ff3ba925522 in QQmlPropertyPrivate::write (object=object@entry=0x564bc348a440, property=..., value=..., context=context@entry=0x564bc348a2e0, flags=...) at qml/qqmlproperty.cpp:1259
#111 0x00007ff3ba926c63 in QQmlPropertyPrivate::writeValueProperty (object=0x564bc348a440, core=..., value=..., context=0x564bc348a2e0, flags=...) at qml/qqmlproperty.cpp:1183
#112 0x00007ff3ba993475 in QQmlBinding::write (this=this@entry=0x564bc348a8f0, core=..., result=..., isUndefined=<optimized out>, flags=...) at qml/qqmlbinding.cpp:333
#113 0x00007ff3ba9944e7 in QQmlBinding::update (this=0x564bc348a8f0, flags=...) at qml/qqmlbinding.cpp:197
#114 0x00007ff3ba994f4e in QQmlBinding::refresh (this=<optimized out>) at qml/qqmlbinding.cpp:409
#115 0x00007ff3ba969ed4 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:100
#116 0x00007ff3ba914bec in QQmlData::signalEmitted (object=0x564bc348a960, index=31, a=0x0) at qml/qqmlengine.cpp:780
#117 0x00007ff3b7cdeb84 in QMetaObject::activate (sender=sender@entry=0x564bc348a960, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3618
#118 0x00007ff3b7cded87 in QMetaObject::activate (sender=sender@entry=0x564bc348a960, m=m@entry=0x7ff3bb9fd380 <QQuickLoader::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3602
#119 0x00007ff3bb674195 in QQuickLoader::itemChanged (this=<optimized out>) at .moc/moc_qquickloader_p.cpp:329
#120 QQuickLoaderPrivate::incubatorStateChanged (this=0x564bc348a990, status=QQmlIncubator::Ready) at items/qquickloader.cpp:673
#121 0x00007ff3ba92d0a5 in QQmlIncubatorPrivate::changeStatus (s=<optimized out>, this=0x564bc3567a60) at qml/qqmlincubator.cpp:707
#122 QQmlIncubatorPrivate::incubate (this=0x564bc3567a60, i=...) at qml/qqmlincubator.cpp:370
#123 0x00007ff3ba92d6d4 in QQmlIncubationController::incubateFor (this=0x564bc33a7960, msecs=<optimized out>) at qml/qqmlincubator.cpp:401
#124 0x00007ff3bba2058c in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#125 0x00007ff3ba92d4e2 in QQmlEnginePrivate::incubate (this=this@entry=0x564bc32a2390, i=..., forContext=forContext@entry=0x564bc3568530) at qml/qqmlincubator.cpp:103
#126 0x00007ff3ba9284f8 in QQmlComponent::create (this=<optimized out>, incubator=..., context=<optimized out>, forContext=forContext@entry=0x0) at qml/qqmlcomponent.cpp:1069
#127 0x00007ff3bb672fff in QQuickLoaderPrivate::_q_sourceLoaded (this=this@entry=0x564bc348a990) at items/qquickloader.cpp:721
#128 0x00007ff3bb6731a8 in QQuickLoaderPrivate::load (this=0x564bc348a990) at items/qquickloader.cpp:603
#129 0x00007ff3ba99e2ec in QQmlObjectCreator::finalize (this=0x564bc3486080, interrupt=...) at qml/qqmlobjectcreator.cpp:1241
#130 0x00007ff3ba92cad2 in QQmlIncubatorPrivate::incubate (this=0x564bc32ea000, i=...) at qml/qqmlincubator.cpp:354
#131 0x00007ff3ba92d6d4 in QQmlIncubationController::incubateFor (this=0x564bc33a7960, msecs=<optimized out>) at qml/qqmlincubator.cpp:401
#132 0x00007ff3bba2058c in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#133 0x00007ff3ba92c4d6 in QQmlIncubatorPrivate::clear (this=0x564bc357b6f0) at qml/qqmlincubator.cpp:155
#134 0x00007ff3ba92cbc3 in QQmlIncubatorPrivate::incubate (this=0x564bc357b6f0, i=...) at qml/qqmlincubator.cpp:366
#135 0x00007ff3ba92d6d4 in QQmlIncubationController::incubateFor (this=0x564bc33a7960, msecs=<optimized out>) at qml/qqmlincubator.cpp:401
#136 0x00007ff3bba2058c in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#137 0x00007ff3ba92d4e2 in QQmlEnginePrivate::incubate (this=this@entry=0x564bc32a2390, i=..., forContext=forContext@entry=0x564bc357b610) at qml/qqmlincubator.cpp:103
#138 0x00007ff3ba9284f8 in QQmlComponent::create (this=<optimized out>, incubator=..., context=<optimized out>, forContext=forContext@entry=0x0) at qml/qqmlcomponent.cpp:1069
#139 0x00007ff3bb672fff in QQuickLoaderPrivate::_q_sourceLoaded (this=this@entry=0x564bc34e0990) at items/qquickloader.cpp:721
#140 0x00007ff3bb6731a8 in QQuickLoaderPrivate::load (this=0x564bc34e0990) at items/qquickloader.cpp:603
#141 0x00007ff3ba99e2ec in QQmlObjectCreator::finalize (this=0x564bc3486080, interrupt=...) at qml/qqmlobjectcreator.cpp:1241
#142 0x00007ff3ba92cad2 in QQmlIncubatorPrivate::incubate (this=this@entry=0x564bc32ea000, i=...) at qml/qqmlincubator.cpp:354
#143 0x00007ff3ba92d598 in QQmlIncubatorPrivate::forceCompletion (this=0x564bc32ea000, i=...) at qml/qqmlincubator.cpp:275
#144 0x00007ff3ba92d5fc in QQmlIncubator::forceCompletion (this=<optimized out>) at qml/qqmlincubator.cpp:606
#145 0x00007ff3bba1c702 in KDeclarative::QmlObject::rootObject() const () from /usr/lib/x86_64-linux-gnu/libKF5Declarative.so.5
#146 0x0000564bbdf581be in ?? ()
#147 0x00007ff3b7cdf319 in QObject::event (this=0x564bbfd0d130, e=<optimized out>) at kernel/qobject.cpp:1263
#148 0x00007ff3b8c1635c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x564bbfd0d130, e=0x564bc31520d0) at kernel/qapplication.cpp:3799
#149 0x00007ff3b8c1db11 in QApplication::notify (this=0x7fff7bd194c0, receiver=0x564bbfd0d130, e=0x564bc31520d0) at kernel/qapplication.cpp:3556
#150 0x00007ff3b7cb2860 in QCoreApplication::notifyInternal2 (receiver=0x564bbfd0d130, event=event@entry=0x564bc31520d0) at kernel/qcoreapplication.cpp:988
#151 0x00007ff3b7cb4fed in QCoreApplication::sendEvent (event=0x564bc31520d0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#152 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x564bbfc5cb90) at kernel/qcoreapplication.cpp:1649
#153 0x00007ff3b7cb5458 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1503
#154 0x00007ff3b7d06ac3 in postEventSourceDispatch (s=0x564bbfca71f0) at kernel/qeventdispatcher_glib.cpp:276
#155 0x00007ff3b204d837 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#156 0x00007ff3b204daa0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#157 0x00007ff3b204db4c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#158 0x00007ff3b7d06ecf in QEventDispatcherGlib::processEvents (this=0x564bbfcb4da0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#159 0x00007ff3b7cb084a in QEventLoop::exec (this=this@entry=0x7fff7bd19350, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#160 0x00007ff3b7cb8fbc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1261
#161 0x0000564bbdf39fe2 in ?? ()
#162 0x00007ff3b73073f1 in __libc_start_main (main=0x564bbdf39480, argc=1, argv=0x7fff7bd19668, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff7bd19658) at ../csu/libc-start.c:291
#163 0x0000564bbdf3a36a in _start ()


Reported using DrKonqi
Comment 4 Marco Martin 2017-01-23 14:00:03 UTC
it appears to be reproduceable here at least on a machine
Comment 5 Marco Martin 2017-01-23 16:59:41 UTC
Git commit e6794603e6c55aae6735d681ec43de4c069cc8cd by Marco Martin.
Committed on 23/01/2017 at 16:54.
Pushed by mart into branch 'Plasma/5.9'.

only reset the model after componentComplete()

setting the application name and the provides
resets the model two times in a short time, so don't
reset on startup, until componentCompleted arrived

M  +18   -3    components/shellprivate/widgetexplorer/plasmaappletitemmodel.cpp
M  +4    -0    components/shellprivate/widgetexplorer/plasmaappletitemmodel_p.h
M  +1    -0    components/shellprivate/widgetexplorer/widgetexplorer.cpp

https://commits.kde.org/plasma-workspace/e6794603e6c55aae6735d681ec43de4c069cc8cd