Bug 356400

Application: plasma-desktop (4.11.13)
KDE Platform Version: 4.14.2
Qt Version: 4.8.6
Operating System: Linux 3.16.0-4-amd64 x86_64
Distribution: Debian GNU/Linux 8.2 (jessie)

-- Information about the crash:
- What I was doing when the application crashed:
I had a folder on desktop showing contents of a file system folder.  I dragged in and went too far and it got on my second monitor.  I tried to drag it back and the crash occurred.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fa9a6df1800 (LWP 1543))]

Thread 3 (Thread 0x7fa97c74c700 (LWP 1558)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fa99f901dea in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fa99fc02f80 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007fa99f901e19 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007fa99a12f0a4 in start_thread (arg=0x7fa97c74c700) at pthread_create.c:309
#4  0x00007fa9a67fb04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7fa8f62ff700 (LWP 1570)):
#0  0x00007fff343d5e4e in clock_gettime ()
#1  0x00007fa9a6807c9d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007fa9a31d4a05 in do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:127
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:144
#4  0x00007fa9a32b7b85 in updateCurrentTime (this=0x7fa8f00030d0) at kernel/qeventdispatcher_unix.cpp:354
#5  QTimerInfoList::timerWait (this=0x7fa8f00030d0, tm=...) at kernel/qeventdispatcher_unix.cpp:460
#6  0x00007fa9a32b646c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7fa8f62febb4) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007fa9a32b6535 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007fa99980b45d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fa99980be0b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fa99980bffc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fa9a32b6d37 in QEventDispatcherGlib::processEvents (this=0x7fa8f00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#12 0x00007fa9a3286271 in QEventLoop::processEvents (this=this@entry=0x7fa8f62fed80, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007fa9a32865d5 in QEventLoop::exec (this=this@entry=0x7fa8f62fed80, flags=...) at kernel/qeventloop.cpp:204
#14 0x00007fa9a317ae99 in QThread::exec (this=this@entry=0x23bb480) at thread/qthread.cpp:538
#15 0x00007fa9a3266ac3 in QInotifyFileSystemWatcherEngine::run (this=0x23bb480) at io/qfilesystemwatcher_inotify.cpp:265
#16 0x00007fa9a317d70f in QThreadPrivate::start (arg=0x23bb480) at thread/qthread_unix.cpp:349
#17 0x00007fa99a12f0a4 in start_thread (arg=0x7fa8f62ff700) at pthread_create.c:309
#18 0x00007fa9a67fb04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7fa9a6df1800 (LWP 1543)):
[KCrash Handler]
#6  0x0000000004ca7940 in ?? ()
#7  0x00007fa984f1cb6b in GroupingContainment::sceneEventFilter(QGraphicsItem*, QEvent*) () from /usr/lib/libplasma_groupingcontainment.so.4
#8  0x00007fa9a2be68ac in QGraphicsScenePrivate::filterEvent (this=this@entry=0x1c24a40, item=item@entry=0x1ce0340, event=event@entry=0x7fff343b3000) at graphicsview/qgraphicsscene.cpp:1181
#9  0x00007fa9a2be6941 in QGraphicsScenePrivate::sendEvent (this=0x1c24a40, item=0x1ce0340, event=0x7fff343b3000) at graphicsview/qgraphicsscene.cpp:1209
#10 0x00007fa9a2bf0af1 in QGraphicsScenePrivate::sendHoverEvent (this=this@entry=0x1c24a40, type=type@entry=QEvent::GraphicsSceneHoverEnter, item=0x1ce0340, hoverEvent=hoverEvent@entry=0x7fff343b3100) at graphicsview/qgraphicsscene.cpp:1268
#11 0x00007fa9a2bf0e72 in QGraphicsScenePrivate::dispatchHoverEvent (this=this@entry=0x1c24a40, hoverEvent=hoverEvent@entry=0x7fff343b3100) at graphicsview/qgraphicsscene.cpp:3939
#12 0x00007fa9a2bf133a in QGraphicsScene::mouseMoveEvent (this=<optimized out>, mouseEvent=0x7fff343b3490) at graphicsview/qgraphicsscene.cpp:4097
#13 0x00007fa9a2bfe2ef in QGraphicsScene::event (this=0x1bf9920, event=0x7fff343b3490) at graphicsview/qgraphicsscene.cpp:3451
#14 0x00007fa9a25d848c in QApplicationPrivate::notify_helper (this=this@entry=0x1ad5b10, receiver=receiver@entry=0x1bf9920, e=e@entry=0x7fff343b3490) at kernel/qapplication.cpp:4570
#15 0x00007fa9a25defa8 in QApplication::notify (this=0x1ac1810, receiver=0x1bf9920, e=0x7fff343b3490) at kernel/qapplication.cpp:4356
#16 0x00007fa9a3fab1aa in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#17 0x00007fa9a328771d in QCoreApplication::notifyInternal (this=0x1ac1810, receiver=0x1bf9920, event=event@entry=0x7fff343b3490) at kernel/qcoreapplication.cpp:955
#18 0x00007fa9a25d6b36 in sendSpontaneousEvent (event=event@entry=0x7fff343b3490, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#19 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7fff343b3490) at kernel/qapplication.cpp:5568
#20 0x00007fa9a2c14638 in QGraphicsViewPrivate::mouseMoveEventHandler (this=this@entry=0x2ecb270, event=event@entry=0x7fff343b3b60) at graphicsview/qgraphicsview.cpp:646
#21 0x00007fa9a2c156ca in QGraphicsView::mouseMoveEvent (this=0x2ecb220, event=0x7fff343b3b60) at graphicsview/qgraphicsview.cpp:3276
#22 0x00007fa9a262b748 in QWidget::event (this=0x2ecb220, event=0x7fff343b3b60) at kernel/qwidget.cpp:8775
#23 0x00007fa9a29ed83e in QFrame::event (this=0x2ecb220, e=0x7fff343b3b60) at widgets/qframe.cpp:557
#24 0x00007fa9a2c16e81 in QGraphicsView::viewportEvent (this=0x2ecb220, event=0x7fff343b3b60) at graphicsview/qgraphicsview.cpp:2866
#25 0x00007fa9a3287886 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x1ad5b10, receiver=receiver@entry=0x2c7b320, event=event@entry=0x7fff343b3b60) at kernel/qcoreapplication.cpp:1065
#26 0x00007fa9a25d846c in QApplicationPrivate::notify_helper (this=this@entry=0x1ad5b10, receiver=receiver@entry=0x2c7b320, e=e@entry=0x7fff343b3b60) at kernel/qapplication.cpp:4566
#27 0x00007fa9a25df10f in QApplication::notify (this=<optimized out>, receiver=0x2c7b320, e=0x7fff343b3b60) at kernel/qapplication.cpp:4113
#28 0x00007fa9a3fab1aa in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#29 0x00007fa9a328771d in QCoreApplication::notifyInternal (this=0x1ac1810, receiver=receiver@entry=0x2c7b320, event=event@entry=0x7fff343b3b60) at kernel/qcoreapplication.cpp:955
#30 0x00007fa9a25de76f in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#31 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x2c7b320, event=event@entry=0x7fff343b3b60, alienWidget=alienWidget@entry=0x2c7b320, nativeWidget=nativeWidget@entry=0x2ecb220, buttonDown=buttonDown@entry=0x7fa9a30fd538 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3178
#32 0x00007fa9a2655432 in QETWidget::translateMouseEvent (this=this@entry=0x2ecb220, event=event@entry=0x7fff343b3ec0) at kernel/qapplication_x11.cpp:4540
#33 0x00007fa9a2653e2c in QApplication::x11ProcessEvent (this=0x1ac1810, event=event@entry=0x7fff343b3ec0) at kernel/qapplication_x11.cpp:3663
#34 0x00007fa9a267ced2 in x11EventSourceDispatch (s=0x1adf470, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#35 0x00007fa99980bc5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007fa99980bf48 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007fa99980bffc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007fa9a32b6d1d in QEventDispatcherGlib::processEvents (this=0x1a53b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#39 0x00007fa9a267cf96 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#40 0x00007fa9a3286271 in QEventLoop::processEvents (this=this@entry=0x7fff343b42a0, flags=...) at kernel/qeventloop.cpp:149
#41 0x00007fa9a32865d5 in QEventLoop::exec (this=this@entry=0x7fff343b42a0, flags=...) at kernel/qeventloop.cpp:204
#42 0x00007fa9a328c059 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1227
#43 0x00007fa9a6afe4bd in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#44 0x00007fa9a6736b45 in __libc_start_main (main=0x4006f0, argc=1, argv=0x7fff343b44f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff343b44e8) at libc-start.c:287
#45 0x000000000040071e in _start ()

Reported using DrKonqi