Bug 251023

Summary: Crash of kde netbook ui on an Acer Aspire One A100
Product: [Unmaintained] plasma4 Reporter: gabriele monfardini <gabrimonfa>
Component: plasma-netbookAssignee: Marco Martin <notmart>
Status: RESOLVED UNMAINTAINED    
Severity: crash CC: aseigo, biasquez, corodius, denislifanov, graysonpeddie, grimwm, heri+kde, kaddi.bug, mahatma.marroquin, Msteffes, neopytek, sinozzuke, thunderbirdtr, yo
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: New crash information added by DrKonqi
New crash information added by DrKonqi

Description gabriele monfardini 2010-09-12 22:43:31 UTC 
Application: plasma-netbook (0.1)
KDE Platform Version: 4.5.1 (KDE 4.5.1)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-20-generic i686
Distribution: Ubuntu maverick (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
Opening various applications from "Search and launch" and switching between them from the list of running applications. I probably have one Konsole, one rekonq, akregator, dropbox and kopete opened

-- Backtrace:
Application: Plasma Netbook (plasma-netbook), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7879720 (LWP 1458))]

Thread 6 (Thread 0xaf649b70 (LWP 1492)):
#0  0x007253a9 in pthread_mutex_lock () from /lib/libpthread.so.0
#1  0x005cdf76 in pthread_mutex_lock () from /lib/libc.so.6
#2  0x04ba3ce1 in ?? () from /lib/libglib-2.0.so.0
#3  0x04ba4008 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#4  0x08c3459f in QEventDispatcherGlib::processEvents (this=0x93ba638, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x08c04609 in QEventLoop::processEvents (this=0xaf649280, flags=) at kernel/qeventloop.cpp:149
#6  0x08c04a8a in QEventLoop::exec (this=0xaf649280, flags=...) at kernel/qeventloop.cpp:201
#7  0x08b00b7e in QThread::exec (this=0x94b9b88) at thread/qthread.cpp:490
#8  0x08be335b in QInotifyFileSystemWatcherEngine::run (this=0x94b9b88) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x08b03df9 in QThreadPrivate::start (arg=0x94b9b88) at thread/qthread_unix.cpp:266
#10 0x00722cc9 in start_thread () from /lib/libpthread.so.0
#11 0x005c06ae in clone () from /lib/libc.so.6

Thread 5 (Thread 0xad3c7b70 (LWP 1630)):
#0  0x00acc416 in __kernel_vsyscall ()
#1  0x007274dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x005cddad in pthread_cond_wait () from /lib/libc.so.6
#3  0x08b049c7 in wait (this=0x916b650, mutex=0x95824d8, time=4294967295) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x916b650, mutex=0x95824d8, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00c92030 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x916b638, th=0x9d7e8e8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x00c957dc in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x95830e0, th=0x9d7e8e8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x00c9155b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x916b638, th=0x9d7e8e8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x00c958d2 in ThreadWeaver::WorkingHardState::applyForWork (this=0x95830e0, th=0x9d7e8e8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00c92533 in ThreadWeaver::WeaverImpl::applyForWork (this=0x916b638, th=0x9d7e8e8, previous=0x9dc8850) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00c9395e in ThreadWeaver::ThreadRunHelper::run (this=0xad3c72e4, parent=0x916b638, th=0x9d7e8e8) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x00c9407b in ThreadWeaver::Thread::run (this=0x9d7e8e8) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x08b03df9 in QThreadPrivate::start (arg=0x9d7e8e8) at thread/qthread_unix.cpp:266
#13 0x00722cc9 in start_thread () from /lib/libpthread.so.0
#14 0x005c06ae in clone () from /lib/libc.so.6

Thread 4 (Thread 0xacbc6b70 (LWP 1631)):
#0  0x00acc416 in __kernel_vsyscall ()
#1  0x007274dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x005cddad in pthread_cond_wait () from /lib/libc.so.6
#3  0x08b049c7 in wait (this=0x916b650, mutex=0x95824d8, time=4294967295) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x916b650, mutex=0x95824d8, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00c92030 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x916b638, th=0x923e5f8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x00c957dc in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x95830e0, th=0x923e5f8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x00c9155b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x916b638, th=0x923e5f8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x00c958d2 in ThreadWeaver::WorkingHardState::applyForWork (this=0x95830e0, th=0x923e5f8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00c92533 in ThreadWeaver::WeaverImpl::applyForWork (this=0x916b638, th=0x923e5f8, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00c958f1 in ThreadWeaver::WorkingHardState::applyForWork (this=0x95830e0, th=0x923e5f8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#11 0x00c92533 in ThreadWeaver::WeaverImpl::applyForWork (this=0x916b638, th=0x923e5f8, previous=0x9db2090) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#12 0x00c9395e in ThreadWeaver::ThreadRunHelper::run (this=0xacbc62e4, parent=0x916b638, th=0x923e5f8) at ../../../threadweaver/Weaver/Thread.cpp:87
#13 0x00c9407b in ThreadWeaver::Thread::run (this=0x923e5f8) at ../../../threadweaver/Weaver/Thread.cpp:142
#14 0x08b03df9 in QThreadPrivate::start (arg=0x923e5f8) at thread/qthread_unix.cpp:266
#15 0x00722cc9 in start_thread () from /lib/libpthread.so.0
#16 0x005c06ae in clone () from /lib/libc.so.6

Thread 3 (Thread 0xac3c5b70 (LWP 1632)):
#0  0x00acc416 in __kernel_vsyscall ()
#1  0x007274dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x005cddad in pthread_cond_wait () from /lib/libc.so.6
#3  0x08b049c7 in wait (this=0x916b650, mutex=0x95824d8, time=4294967295) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x916b650, mutex=0x95824d8, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00c92030 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x916b638, th=0x9b755e8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x00c957dc in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x95830e0, th=0x9b755e8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x00c9155b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x916b638, th=0x9b755e8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x00c958d2 in ThreadWeaver::WorkingHardState::applyForWork (this=0x95830e0, th=0x9b755e8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00c92533 in ThreadWeaver::WeaverImpl::applyForWork (this=0x916b638, th=0x9b755e8, previous=0x9e21128) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00c9395e in ThreadWeaver::ThreadRunHelper::run (this=0xac3c52e4, parent=0x916b638, th=0x9b755e8) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x00c9407b in ThreadWeaver::Thread::run (this=0x9b755e8) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x08b03df9 in QThreadPrivate::start (arg=0x9b755e8) at thread/qthread_unix.cpp:266
#13 0x00722cc9 in start_thread () from /lib/libpthread.so.0
#14 0x005c06ae in clone () from /lib/libc.so.6

Thread 2 (Thread 0xabbc4b70 (LWP 1633)):
#0  0x00acc416 in __kernel_vsyscall ()
#1  0x007274dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x005cddad in pthread_cond_wait () from /lib/libc.so.6
#3  0x08b049c7 in wait (this=0x916b650, mutex=0x95824d8, time=4294967295) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0x916b650, mutex=0x95824d8, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00c92030 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x916b638, th=0x9d6f0f8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x00c957dc in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x95830e0, th=0x9d6f0f8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x00c9155b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x916b638, th=0x9d6f0f8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x00c958d2 in ThreadWeaver::WorkingHardState::applyForWork (this=0x95830e0, th=0x9d6f0f8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00c92533 in ThreadWeaver::WeaverImpl::applyForWork (this=0x916b638, th=0x9d6f0f8, previous=0x989b9c8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00c9395e in ThreadWeaver::ThreadRunHelper::run (this=0xabbc42e4, parent=0x916b638, th=0x9d6f0f8) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x00c9407b in ThreadWeaver::Thread::run (this=0x9d6f0f8) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x08b03df9 in QThreadPrivate::start (arg=0x9d6f0f8) at thread/qthread_unix.cpp:266
#13 0x00722cc9 in start_thread () from /lib/libpthread.so.0
#14 0x005c06ae in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb7879720 (LWP 1458)):
[KCrash Handler]
#7  0x08c195c0 in QMetaObject::changeGuard (ptr=0xa772080, o=0xa773028) at kernel/qobject.cpp:455
#8  0x0331c3c5 in operator= (this=0xa771f28, event=0xbff4acfc) at ../../include/QtCore/../../src/corelib/kernel/qpointer.h:68
#9  QGraphicsProxyWidgetPrivate::sendWidgetMouseEvent (this=0xa771f28, event=0xbff4acfc) at graphicsview/qgraphicsproxywidget.cpp:284
#10 0x03306da4 in QGraphicsItem::sceneEvent (this=0x9b7d718, event=0xbff4acfc) at graphicsview/qgraphicsitem.cpp:6669
#11 0x0335e0a7 in QGraphicsWidget::sceneEvent (this=0x9b7d710, event=0xbff4acfc) at graphicsview/qgraphicswidget.cpp:1173
#12 0x0331f129 in QGraphicsScenePrivate::sendEvent (this=0x9219a08, item=0x9b7d718, event=0xbff4acfc) at graphicsview/qgraphicsscene.cpp:1211
#13 0x03321473 in QGraphicsScenePrivate::sendMouseEvent (this=0x9219a08, mouseEvent=0xbff4acfc) at graphicsview/qgraphicsscene.cpp:1285
#14 0x03325854 in QGraphicsScene::mouseReleaseEvent (this=0x92195b0, mouseEvent=0xbff4acfc) at graphicsview/qgraphicsscene.cpp:4111
#15 0x0333a0bc in QGraphicsScene::event (this=0x92195b0, event=0xbff4acfc) at graphicsview/qgraphicsscene.cpp:3444
#16 0x02c5502c in QApplicationPrivate::notify_helper (this=0x916c200, receiver=0x92195b0, e=0xbff4acfc) at kernel/qapplication.cpp:4396
#17 0x02c5b09e in QApplication::notify (this=0x9166a40, receiver=0x92195b0, e=0xbff4acfc) at kernel/qapplication.cpp:3798
#18 0x0118a44a in KApplication::notify (this=0x9166a40, receiver=0x92195b0, event=0xbff4acfc) at ../../kdeui/kernel/kapplication.cpp:310
#19 0x08c05b3b in QCoreApplication::notifyInternal (this=0x9166a40, receiver=0x92195b0, event=0xbff4acfc) at kernel/qcoreapplication.cpp:732
#20 0x02c54bee in sendSpontaneousEvent (receiver=0x92195b0, event=0x91b5b78) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#21 qt_sendSpontaneousEvent (receiver=0x92195b0, event=0x91b5b78) at kernel/qapplication.cpp:5388
#22 0x03357525 in QGraphicsView::mouseReleaseEvent (this=0x9a51ea8, event=0xbff4b480) at graphicsview/qgraphicsview.cpp:3334
#23 0x02cb2ae8 in QWidget::event (this=0x9a51ea8, event=0xbff4b480) at kernel/qwidget.cpp:8158
#24 0x030d4323 in QFrame::event (this=0x9a51ea8, e=0xbff4b480) at widgets/qframe.cpp:557
#25 0x031716c2 in QAbstractScrollArea::viewportEvent (this=0xa773028, e=0x91b5b78) at widgets/qabstractscrollarea.cpp:1043
#26 0x0335588b in QGraphicsView::viewportEvent (this=0x9a51ea8, event=0xbff4b480) at graphicsview/qgraphicsview.cpp:2862
#27 0x03174115 in viewportEvent (this=0x96b7868, o=0x9aa5680, e=0xbff4b480) at widgets/qabstractscrollarea_p.h:100
#28 QAbstractScrollAreaFilter::eventFilter (this=0x96b7868, o=0x9aa5680, e=0xbff4b480) at widgets/qabstractscrollarea_p.h:116
#29 0x08c0529a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x916c200, receiver=0x9aa5680, event=0xbff4b480) at kernel/qcoreapplication.cpp:847
#30 0x02c55009 in QApplicationPrivate::notify_helper (this=0x916c200, receiver=0x9aa5680, e=0xbff4b480) at kernel/qapplication.cpp:4392
#31 0x02c5bc7e in QApplication::notify (this=0x9166a40, receiver=0x9aa5680, e=0xbff4b480) at kernel/qapplication.cpp:3959
#32 0x0118a44a in KApplication::notify (this=0x9166a40, receiver=0x9aa5680, event=0xbff4b480) at ../../kdeui/kernel/kapplication.cpp:310
#33 0x08c05b3b in QCoreApplication::notifyInternal (this=0x9166a40, receiver=0x9aa5680, event=0xbff4b480) at kernel/qcoreapplication.cpp:732
#34 0x02c5a0e4 in sendEvent (receiver=0x9aa5680, event=0xbff4b480, alienWidget=0x9aa5680, nativeWidget=0x9a51ea8, buttonDown=0x35f03c0, lastMouseReceiver=..., spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#35 QApplicationPrivate::sendMouseEvent (receiver=0x9aa5680, event=0xbff4b480, alienWidget=0x9aa5680, nativeWidget=0x9a51ea8, buttonDown=0x35f03c0, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3058
#36 0x02ce8b60 in QETWidget::translateMouseEvent (this=0x9a51ea8, event=0xbff4b99c) at kernel/qapplication_x11.cpp:4403
#37 0x02ce7fa1 in QApplication::x11ProcessEvent (this=0x9166a40, event=0xbff4b99c) at kernel/qapplication_x11.cpp:3414
#38 0x02d171ba in x11EventSourceDispatch (s=0x916ecf8, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#39 0x04ba0015 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#40 0x04ba3e28 in ?? () from /lib/libglib-2.0.so.0
#41 0x04ba4008 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#42 0x08c34565 in QEventDispatcherGlib::processEvents (this=0x914bce8, flags=...) at kernel/qeventdispatcher_glib.cpp:415
#43 0x02d16a35 in QGuiEventDispatcherGlib::processEvents (this=0x914bce8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#44 0x08c04609 in QEventLoop::processEvents (this=0xbff4bc94, flags=) at kernel/qeventloop.cpp:149
#45 0x08c04a8a in QEventLoop::exec (this=0xbff4bc94, flags=...) at kernel/qeventloop.cpp:201
#46 0x08c0900f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#47 0x02c53e57 in QApplication::exec () at kernel/qapplication.cpp:3672
#48 0x0074d96d in kdemain (argc=1, argv=0xbff4beb4) at ../../../../plasma/netbook/shell/main.cpp:67
#49 0x080485bb in main (argc=1, argv=0xbff4beb4) at plasma-netbook_dummy.cpp:3

Reported using DrKonqi
Comment 1 Aaron J. Seigo 2010-09-18 23:56:37 UTC 
crash is in Qt
Comment 2 Beat Wolf 2010-09-25 10:45:30 UTC 
*** Bug 252309 has been marked as a duplicate of this bug. ***
Comment 3 Beat Wolf 2010-11-18 13:48:38 UTC 
*** Bug 257217 has been marked as a duplicate of this bug. ***
Comment 4 Beat Wolf 2010-11-29 15:21:51 UTC 
*** Bug 258005 has been marked as a duplicate of this bug. ***
Comment 5 Beat Wolf 2011-03-26 12:51:12 UTC 
*** Bug 269428 has been marked as a duplicate of this bug. ***
Comment 6 Beat Wolf 2011-05-29 17:35:08 UTC 
*** Bug 267463 has been marked as a duplicate of this bug. ***
Comment 7 Beat Wolf 2011-05-29 17:35:22 UTC 
*** Bug 274399 has been marked as a duplicate of this bug. ***
Comment 8 Beat Wolf 2011-06-11 22:21:10 UTC 
*** Bug 275046 has been marked as a duplicate of this bug. ***
Comment 9 Thijs 2012-01-01 16:28:52 UTC 
*** Bug 290323 has been marked as a duplicate of this bug. ***
Comment 10 Jekyll Wu 2012-08-15 03:14:29 UTC 
*** Bug 305173 has been marked as a duplicate of this bug. ***
Comment 11 Jekyll Wu 2012-10-23 14:16:24 UTC 
*** Bug 308852 has been marked as a duplicate of this bug. ***
Comment 12 Martin Flöser 2013-01-18 18:20:20 UTC 
*** Bug 313431 has been marked as a duplicate of this bug. ***
Comment 13 Martin Flöser 2013-06-04 12:54:10 UTC 
*** Bug 316992 has been marked as a duplicate of this bug. ***
Comment 14 Dominik Haumann 2013-08-30 21:49:54 UTC 
*** Bug 319031 has been marked as a duplicate of this bug. ***
Comment 15 Dominik Haumann 2013-08-30 21:50:08 UTC 
*** Bug 323956 has been marked as a duplicate of this bug. ***
Comment 16 Dominik Haumann 2013-08-30 21:51:21 UTC 
This is supposed to be a bug in Qt, but it still seems to be an issue in Qt 4.8.4. Where is the upstream bug, and when is it supposed to be fixed?
Comment 17 yo 2014-03-21 16:08:01 UTC 
Created attachment 85669 [details]
New crash information added by DrKonqi

plasma-desktop (4.12.2) on KDE Platform 4.12.3 using Qt 4.8.6

- What I was doing when the application crashed:

I hit Ctrl+Q in Choqok and then opened a menu option in the menubar plasmoid in a panel. The desktop froze; then crashed.

-- Backtrace (Reduced):
#7  0x00007f0581a49b8c in operator= (p=<optimized out>, this=0xc3ff8c0) at ../../include/QtCore/../../src/corelib/kernel/qpointer.h:68
#8  QGraphicsProxyWidgetPrivate::sendWidgetMouseEvent (this=0xc3ff6e0, event=0x7fffc48909d0) at graphicsview/qgraphicsproxywidget.cpp:284
#9  0x00007f0581a2bff2 in QGraphicsItem::sceneEvent (this=0xab7a4f0, event=0x7fffc48909d0) at graphicsview/qgraphicsitem.cpp:6755
#10 0x00007f0581a530cf in QGraphicsScenePrivate::sendMouseEvent (this=0x83d730, mouseEvent=0x7fffc48909d0) at graphicsview/qgraphicsscene.cpp:1295
#11 0x00007f0581a5bd2f in QGraphicsScene::mouseReleaseEvent (this=<optimized out>, mouseEvent=0x7fffc48909d0) at graphicsview/qgraphicsscene.cpp:4128
Comment 18 yo 2014-03-21 16:09:25 UTC 
Created attachment 85670 [details]
New crash information added by DrKonqi

plasma-desktop (4.12.2) on KDE Platform 4.12.3 using Qt 4.8.6

- What I was doing when the application crashed:

I hit Ctrl+Q in Choqok and then opened a menu option in the menubar plasmoid in a panel. The desktop froze; then crashed.

-- Backtrace (Reduced):
#7  0x00007f0581a49b8c in operator= (p=<optimized out>, this=0xc3ff8c0) at ../../include/QtCore/../../src/corelib/kernel/qpointer.h:68
#8  QGraphicsProxyWidgetPrivate::sendWidgetMouseEvent (this=0xc3ff6e0, event=0x7fffc48909d0) at graphicsview/qgraphicsproxywidget.cpp:284
#9  0x00007f0581a2bff2 in QGraphicsItem::sceneEvent (this=0xab7a4f0, event=0x7fffc48909d0) at graphicsview/qgraphicsitem.cpp:6755
#10 0x00007f0581a530cf in QGraphicsScenePrivate::sendMouseEvent (this=0x83d730, mouseEvent=0x7fffc48909d0) at graphicsview/qgraphicsscene.cpp:1295
#11 0x00007f0581a5bd2f in QGraphicsScene::mouseReleaseEvent (this=<optimized out>, mouseEvent=0x7fffc48909d0) at graphicsview/qgraphicsscene.cpp:4128
Comment 19 Nate Graham 2018-06-08 19:08:30 UTC 
Hello!

This bug report was filed for KDE Plasma 4, which reached end-of-support status in August 2015. KDE Plasma 5's desktop shell has been almost completely rewritten for better performance and usability, so it is likely that this bug is already resolved in Plasma 5.

Accordingly, we hope you understand why we must close this bug report. If the issue described  here is still present in KDE Plasma 5.12 or later, please feel free to open a new ticket in the "plasmashell" product after reading https://community.kde.org/Get_Involved/Bug_Reporting

If you would like to get involved in KDE's bug triaging effort so that future mass bug closes like this are less likely, please read https://community.kde.org/Get_Involved#Bug_Triaging

Thanks for your understanding!

Nate Graham