Bug 372531

Summary:	Plasma crushes many times a day
Product:	[Plasma] plasmashell	Reporter:	danilin22
Component:	Task Manager and Icons-Only Task Manager	Assignee:	Eike Hein <hein>
Status:	RESOLVED DUPLICATE
Severity:	crash	CC:	bhush94, notmart, plasma-bugs
Priority:	NOR	Keywords:	drkonqi
Version:	5.5.5
Target Milestone:	1.0
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description danilin22 2016-11-16 11:51:08 UTC

Application: plasmashell (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.1.34-33-default x86_64
Distribution: "openSUSE Leap 42.1 (x86_64)"

-- Information about the crash:
It usually happpens when I  start an application (usually by clicking  an icon on my desktop)
or just killing a windows with an appication (like midnight-commander) by clicking on the
X in the upper-right angle.  BUT: I can not reliably reproduce a crush: looks  like 
it  happens not on every kill/create event but rather once  per few  (say 5 or even 10) such
events.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd9f02d87c0 (LWP 5589))]

Thread 7 (Thread 0x7fd92bb64700 (LWP 5890)):
#0  0x00007fd9e97e8bfd in poll () at /lib64/libc.so.6
#1  0x00007fd9e5ec5e64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fd9e5ec5f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fd9ea115d6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fd9ea0bcd53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fd9e9ede61a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007fd92d1b0cf7 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#7  0x00007fd9e9ee332f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007fd9e8ff20a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fd9e97f102d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7fd9be57f700 (LWP 5657)):
#0  0x00007fd9e8ff603f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fd9ef9c186b in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007fd9ef9c1899 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007fd9e8ff20a4 in start_thread () at /lib64/libpthread.so.0
#4  0x00007fd9e97f102d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7fd9bfdc5700 (LWP 5629)):
#0  0x00007fd9e97e8bfd in poll () at /lib64/libc.so.6
#1  0x00007fd9e5ec5e64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fd9e5ec5f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fd9ea115d6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fd9ea0bcd53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fd9e9ede61a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007fd9ed1f2e18 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007fd9e9ee332f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007fd9e8ff20a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fd9e97f102d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7fd9c5709700 (LWP 5622)):
#0  0x00007fd9e97e8bfd in poll () at /lib64/libc.so.6
#1  0x00007fd9e5ec5e64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fd9e5ec5f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fd9ea115d6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fd9ea0bcd53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fd9e9ede61a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007fd9ed1f2e18 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007fd9e9ee332f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007fd9e8ff20a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fd9e97f102d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fd9d2fc1700 (LWP 5595)):
#0  0x00007fd9e97e8bfd in poll () at /lib64/libc.so.6
#1  0x00007fd9e5ec5e64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fd9e5ec5f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fd9ea115d6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fd9ea0bcd53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fd9e9ede61a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007fd9ed1f2e18 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007fd9e9ee332f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007fd9e8ff20a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fd9e97f102d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7fd9d9d0b700 (LWP 5592)):
#0  0x00007fd9e97e8bfd in poll () at /lib64/libc.so.6
#1  0x00007fd9ee73c422 in  () at /usr/lib64/libxcb.so.1
#2  0x00007fd9ee73e00f in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007fd9dbe5c3c9 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007fd9e9ee332f in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007fd9e8ff20a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fd9e97f102d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fd9f02d87c0 (LWP 5589)):
[KCrash Handler]
#6  0x00007fd9ecfc4339 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007fd9ed232029 in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () at /usr/lib64/libQt5Qml.so.5
#8  0x00007fd9ed259aac in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007fd9ed25a32b in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib64/libQt5Qml.so.5
#10 0x00007fd9ea0eedc1 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#11 0x00007fd9ea16d82c in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () at /usr/lib64/libQt5Core.so.5
#12 0x00007fd933e05364 in  () at /usr/lib64/libtaskmanager.so.5
#13 0x00007fd933e05ca7 in  () at /usr/lib64/libtaskmanager.so.5
#14 0x00007fd9ea0eecc6 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#15 0x00007fd933e0d738 in TaskManager::AbstractGroupableItem::changed(QFlags<TaskManager::TaskChange>) () at /usr/lib64/libtaskmanager.so.5
#16 0x00007fd9ea0eecc6 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#17 0x00007fd933e0d868 in TaskManager::Task::changed(QFlags<TaskManager::TaskChange>) () at /usr/lib64/libtaskmanager.so.5
#18 0x00007fd933deda86 in TaskManager::Task::setActive(bool) () at /usr/lib64/libtaskmanager.so.5
#19 0x00007fd933e00999 in TaskManager::TaskManager::activeWindowChanged(unsigned long long) () at /usr/lib64/libtaskmanager.so.5
#20 0x00007fd9ea0ee73f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#21 0x00007fd9ecd02a82 in KWindowSystem::activeWindowChanged(unsigned long long) () at /usr/lib64/libKF5WindowSystem.so.5
#22 0x00007fd9d31d9eed in  () at /usr/lib64/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so
#23 0x00007fd9ea0bbfc0 in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () at /usr/lib64/libQt5Core.so.5
#24 0x00007fd9dbe5a044 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /usr/lib64/libQt5XcbQpa.so.5
#25 0x00007fd9dbe5c01b in QXcbConnection::processXcbEvents() () at /usr/lib64/libQt5XcbQpa.so.5
#26 0x00007fd9ea0efac6 in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#27 0x00007fd9eb439e7c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#28 0x00007fd9eb43ecc8 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#29 0x00007fd9ea0bee95 in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#30 0x00007fd9ea0c1057 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#31 0x00007fd9ea1168f3 in  () at /usr/lib64/libQt5Core.so.5
#32 0x00007fd9e5ec5c84 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#33 0x00007fd9e5ec5ed8 in  () at /usr/lib64/libglib-2.0.so.0
#34 0x00007fd9e5ec5f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#35 0x00007fd9ea115d6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#36 0x00007fd9ea0bcd53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#37 0x00007fd9ea0c48f6 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#38 0x0000000000436b3d in main ()

Reported using DrKonqi

Comment 1 Marco Martin 2016-11-16 12:38:14 UTC


*** This bug has been marked as a duplicate of bug 342763 ***