Bug 322114

Application: plasma-desktop (4.10.5)
KDE Platform Version: 4.10.5 (Compiled from sources)
Qt Version: 4.8.4
Operating System: Linux 3.10.0-gentoo x86_64
Distribution: "Gentoo Base System release 2.2"

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

Anytime I adjust the Plasma-Panels especially when working with the QucikAccess Plasmoid the whole Plasma-Desktop crashes.

The current backtrace is the situation, when I created a QuickAccess area on the Desktop, inserted 5 launchers and then dragged the whole plasmoid into the panel.

After some time (~ 1 sec) the plasma-desktop crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (kdeinit4), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f5dd8537780 (LWP 6626))]

Thread 3 (Thread 0x7f5db4ea7700 (LWP 6629)):
#0  timerSourcePrepare (source=0x7f5da8002600, timeout=timeout@entry=0x7f5db4ea6c84) at kernel/qeventdispatcher_glib.cpp:157
#1  0x00007f5dd2cd7918 in g_main_context_prepare (context=context@entry=0x7f5da80009a0, priority=priority@entry=0x7f5db4ea6ce8) at gmain.c:2986
#2  0x00007f5dd2cd7fab in g_main_context_iterate (context=context@entry=0x7f5da80009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3270
#3  0x00007f5dd2cd81a4 in g_main_context_iteration (context=0x7f5da80009a0, may_block=1) at gmain.c:3351
#4  0x00007f5dd71c3966 in QEventDispatcherGlib::processEvents (this=0x7f5da80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f5dd71943bf in QEventLoop::processEvents (this=this@entry=0x7f5db4ea6e40, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f5dd7194648 in QEventLoop::exec (this=this@entry=0x7f5db4ea6e40, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f5dd7096b30 in QThread::exec (this=this@entry=0x93ee40) at thread/qthread.cpp:542
#8  0x00007f5dd7174daf in QInotifyFileSystemWatcherEngine::run (this=0x93ee40) at io/qfilesystemwatcher_inotify.cpp:256
#9  0x00007f5dd7099aac in QThreadPrivate::start (arg=0x93ee40) at thread/qthread_unix.cpp:338
#10 0x00007f5dd6e03f3b in start_thread (arg=0x7f5db4ea7700) at pthread_create.c:308
#11 0x00007f5dd5ba032d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f5dafdbe700 (LWP 6630)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f5dc917fe92 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f5dc9477ea0 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f5dc917fec9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f5dd6e03f3b in start_thread (arg=0x7f5dafdbe700) at pthread_create.c:308
#4  0x00007f5dd5ba032d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f5dd8537780 (LWP 6626)):
[KCrash Handler]
#6  0x0000000005164d90 in ?? ()
#7  0x00007f5dbe161ec3 in sceneEventFilter (event=0x7ffffb7a58c0, watched=<optimized out>, this=0x9362e0) at /var/tmp/portage/kde-base/kdeplasma-addons-4.10.5/work/kdeplasma-addons-4.10.5/containments/groupingdesktop/lib/groupingcontainment.cpp:732
#8  GroupingContainment::sceneEventFilter (this=0x9362e0, watched=<optimized out>, event=0x7ffffb7a58c0) at /var/tmp/portage/kde-base/kdeplasma-addons-4.10.5/work/kdeplasma-addons-4.10.5/containments/groupingdesktop/lib/groupingcontainment.cpp:686
#9  0x00007f5dd69093ce in QGraphicsScenePrivate::filterEvent (this=this@entry=0x708de0, item=item@entry=0xae7e30, event=event@entry=0x7ffffb7a58c0) at graphicsview/qgraphicsscene.cpp:1181
#10 0x00007f5dd6909450 in QGraphicsScenePrivate::sendEvent (this=0x708de0, item=0xae7e30, event=0x7ffffb7a58c0) at graphicsview/qgraphicsscene.cpp:1209
#11 0x00007f5dd690a329 in QGraphicsScenePrivate::sendHoverEvent (this=this@entry=0x708de0, type=type@entry=QEvent::GraphicsSceneHoverMove, item=item@entry=0xae7e30, hoverEvent=hoverEvent@entry=0x7ffffb7a5a10) at graphicsview/qgraphicsscene.cpp:1268
#12 0x00007f5dd690aabc in QGraphicsScenePrivate::dispatchHoverEvent (this=this@entry=0x708de0, hoverEvent=hoverEvent@entry=0x7ffffb7a5a10) at graphicsview/qgraphicsscene.cpp:3946
#13 0x00007f5dd690acf7 in QGraphicsScene::mouseMoveEvent (this=<optimized out>, mouseEvent=0x7ffffb7a6060) at graphicsview/qgraphicsscene.cpp:4097
#14 0x00007f5dd691deb0 in QGraphicsScene::event (this=0x6b1bd0, event=0x7ffffb7a6060) at graphicsview/qgraphicsscene.cpp:3451
#15 0x00007f5dd634034c in QApplicationPrivate::notify_helper (this=this@entry=0x6cd0e0, receiver=receiver@entry=0x6b1bd0, e=e@entry=0x7ffffb7a6060) at kernel/qapplication.cpp:4562
#16 0x00007f5dd6344771 in QApplication::notify (this=this@entry=0x6c6200, receiver=receiver@entry=0x6b1bd0, e=e@entry=0x7ffffb7a6060) at kernel/qapplication.cpp:4423
#17 0x00007f5dd7f59026 in KApplication::notify (this=0x6c6200, receiver=0x6b1bd0, event=0x7ffffb7a6060) at /var/tmp/portage/kde-base/kdelibs-4.10.5/work/kdelibs-4.10.5/kdeui/kernel/kapplication.cpp:311
#18 0x00007f5dd719566e in QCoreApplication::notifyInternal (this=0x6c6200, receiver=0x6b1bd0, event=0x7ffffb7a6060, event@entry=0x7ffffb7a6058) at kernel/qcoreapplication.cpp:946
#19 0x00007f5dd633e816 in sendSpontaneousEvent (event=event@entry=0x7ffffb7a6058, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#20 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7ffffb7a6060) at kernel/qapplication.cpp:5560
#21 0x00007f5dd6931198 in QGraphicsViewPrivate::mouseMoveEventHandler (this=this@entry=0x1963330, event=event@entry=0x7ffffb7a6b50) at graphicsview/qgraphicsview.cpp:646
#22 0x00007f5dd693431e in QGraphicsView::mouseMoveEvent (this=0x1aa08a0, event=0x7ffffb7a6b50) at graphicsview/qgraphicsview.cpp:3276
#23 0x00007f5dd6390133 in QWidget::event (this=this@entry=0x1aa08a0, event=event@entry=0x7ffffb7a6b50) at kernel/qwidget.cpp:8360
#24 0x00007f5dd671e486 in QFrame::event (this=0x1aa08a0, e=0x7ffffb7a6b50) at widgets/qframe.cpp:557
#25 0x00007f5dd693773b in QGraphicsView::viewportEvent (this=0x1aa08a0, event=0x7ffffb7a6b50) at graphicsview/qgraphicsview.cpp:2866
#26 0x00007f5dd71957d4 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x6cd0e0, receiver=receiver@entry=0x1979250, event=event@entry=0x7ffffb7a6b50) at kernel/qcoreapplication.cpp:1056
#27 0x00007f5dd634031c in QApplicationPrivate::notify_helper (this=this@entry=0x6cd0e0, receiver=receiver@entry=0x1979250, e=e@entry=0x7ffffb7a6b50) at kernel/qapplication.cpp:4558
#28 0x00007f5dd6344fe9 in QApplication::notify (this=this@entry=0x6c6200, receiver=receiver@entry=0x1979250, e=e@entry=0x7ffffb7a6b50) at kernel/qapplication.cpp:4105
#29 0x00007f5dd7f59026 in KApplication::notify (this=0x6c6200, receiver=0x1979250, event=0x7ffffb7a6b50) at /var/tmp/portage/kde-base/kdelibs-4.10.5/work/kdelibs-4.10.5/kdeui/kernel/kapplication.cpp:311
#30 0x00007f5dd719566e in QCoreApplication::notifyInternal (this=0x6c6200, receiver=receiver@entry=0x1979250, event=event@entry=0x7ffffb7a6b50) at kernel/qcoreapplication.cpp:946
#31 0x00007f5dd634117b in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#32 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x1979250, event=event@entry=0x7ffffb7a6b50, alienWidget=alienWidget@entry=0x1979250, nativeWidget=nativeWidget@entry=0x1aa08a0, buttonDown=buttonDown@entry=0x7f5dd6df8308 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3173
#33 0x00007f5dd63bbe84 in QETWidget::translateMouseEvent (this=this@entry=0x1aa08a0, event=event@entry=0x7ffffb7a72a0) at kernel/qapplication_x11.cpp:4516
#34 0x00007f5dd63ba781 in QApplication::x11ProcessEvent (this=0x6c6200, event=event@entry=0x7ffffb7a72a0) at kernel/qapplication_x11.cpp:3639
#35 0x00007f5dd63e039a in x11EventSourceDispatch (s=s@entry=0x6cd730, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#36 0x00007f5dd2cd7db5 in g_main_dispatch (context=0x6cad90) at gmain.c:2715
#37 g_main_context_dispatch (context=context@entry=0x6cad90) at gmain.c:3219
#38 0x00007f5dd2cd80e8 in g_main_context_iterate (context=context@entry=0x6cad90, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3290
#39 0x00007f5dd2cd81a4 in g_main_context_iteration (context=0x6cad90, may_block=1) at gmain.c:3351
#40 0x00007f5dd71c3946 in QEventDispatcherGlib::processEvents (this=0x6bce20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#41 0x00007f5dd63e002e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#42 0x00007f5dd71943bf in QEventLoop::processEvents (this=this@entry=0x7ffffb7a7660, flags=...) at kernel/qeventloop.cpp:149
#43 0x00007f5dd7194648 in QEventLoop::exec (this=this@entry=0x7ffffb7a7660, flags=...) at kernel/qeventloop.cpp:204
#44 0x00007f5dd7199286 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#45 0x00007f5dd633e5ec in QApplication::exec () at kernel/qapplication.cpp:3823
#46 0x00007f5dc3deca01 in kdemain (argc=1, argv=0x66d9f0) at /var/tmp/portage/kde-base/plasma-workspace-4.10.5-r1/work/plasma-workspace-4.10.5/plasma/desktop/shell/main.cpp:126
#47 0x00000000004088ea in launch (argc=argc@entry=1, _name=_name@entry=0x653808 "/usr/bin/plasma-desktop", args=args@entry=0x653820 "", cwd=cwd@entry=0x0, envc=envc@entry=0, envs=<optimized out>, envs@entry=0x653828 "", reset_env=false, tty=tty@entry=0x0, avoid_loops=false, startup_id_str=startup_id_str@entry=0x40b146 "0") at /var/tmp/portage/kde-base/kdelibs-4.10.5/work/kdelibs-4.10.5/kinit/kinit.cpp:726
#48 0x000000000040977b in handle_launcher_request (sock=7, who=<optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.10.5/work/kdelibs-4.10.5/kinit/kinit.cpp:1218
#49 0x0000000000409dc3 in handle_requests (waitForPid=waitForPid@entry=0) at /var/tmp/portage/kde-base/kdelibs-4.10.5/work/kdelibs-4.10.5/kinit/kinit.cpp:1411
#50 0x0000000000405c6f in main (argc=2, argv=0x7fff00000001, envp=0x7ffffb7a83a0) at /var/tmp/portage/kde-base/kdelibs-4.10.5/work/kdelibs-4.10.5/kinit/kinit.cpp:1899

Possible duplicates by query: bug 320993, bug 315704, bug 304117.

Reported using DrKonqi