Bug 308222

Summary: Adding eyes to controll-bar failed
Product: [Unmaintained] plasma4 Reporter: H.-P. Sorge <hanspetersorge>
Component: generalAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED UNMAINTAINED    
Severity: crash CC: thiago.bauermann
Priority: NOR    
Version: 4.9.2   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: New crash information added by DrKonqi

Description H.-P. Sorge 2012-10-11 09:32:49 UTC 
Application: plasma-desktop (0.4)
KDE Platform Version: 4.9.2
Qt Version: 4.8.2
Operating System: Linux 3.5.6-1.fc17.i686.PAE i686
Distribution: "Fedora release 17 (Beefy Miracle)"

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

Adding the miniprogram eyes did not proceed. Shortly after hitting "Esc" the application crashed.

-- Backtrace:
Application: Plasma-Desktop-Umgebung (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0xb125c7c0 (LWP 2007))]

Thread 3 (Thread 0xa7fffb40 (LWP 2013)):
#0  0xb2896dcd in __GI_clock_gettime (clock_id=1, tp=0xa7ffef28) at ../sysdeps/unix/clock_gettime.c:116
#1  0xb5982406 in do_gettime (frac=0xa7ffef20, sec=0xa7ffef18) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb5a6a14f in QTimerInfoList::updateCurrentTime (this=0xa7ffefa8) at kernel/qeventdispatcher_unix.cpp:343
#4  0xa76004e0 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 2 (Thread 0xa6bffb40 (LWP 2015)):
#0  0xb77bf424 in __kernel_vsyscall ()
#1  0xb58aa12c in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:172
#2  0xb75bd17d in QTWTF::TCMalloc_PageHeap::scavengerThread (this=this@entry=0xb76cb9e0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#3  0xb75bd1b0 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0xb76cb9e0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#4  0xb58a6adf in start_thread (arg=0xa6bffb40) at pthread_create.c:309
#5  0xb4bda3ce in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:133

Thread 1 (Thread 0xb125c7c0 (LWP 2007)):
[KCrash Handler]
#7  QGraphicsScenePrivate::filterDescendantEvent (this=this@entry=0x8c1cb90, item=item@entry=0xa276840, event=event@entry=0xbf989ac0) at graphicsview/qgraphicsscene.cpp:1161
#8  0xb559e3e0 in QGraphicsScenePrivate::sendEvent (this=0x8c1cb90, item=0xa276840, event=0xbf989ac0) at graphicsview/qgraphicsscene.cpp:1211
#9  0xb559f0a5 in sendMouseEvent (mouseEvent=0xbf989ac0, this=0x8c1cb90) at graphicsview/qgraphicsscene.cpp:1295
#10 QGraphicsScenePrivate::sendMouseEvent (this=0x8c1cb90, mouseEvent=0xbf989ac0) at graphicsview/qgraphicsscene.cpp:1274
#11 0xb559fc34 in QGraphicsScene::mouseMoveEvent (this=0x8a93598, mouseEvent=0xbf989ac0) at graphicsview/qgraphicsscene.cpp:4102
#12 0xb55b3207 in QGraphicsScene::event (this=0x8a93598, event=0xbf989ac0) at graphicsview/qgraphicsscene.cpp:3451
#13 0xb4f0390c in QApplicationPrivate::notify_helper (this=0x8a58470, receiver=0x8a93598, e=0xbf989ac0) at kernel/qapplication.cpp:4551
#14 0xb4f083cf in QApplication::notify (this=0xbf989ac0, receiver=0x8a93598, e=0xbf989ac0) at kernel/qapplication.cpp:3933
#15 0xb613cfe2 in KApplication::notify (this=0x8a77ef8, receiver=0x8a93598, event=0xbf989ac0) at /usr/src/debug/kdelibs-4.9.2/kdeui/kernel/kapplication.cpp:311
#16 0xb5a3708e in QCoreApplication::notifyInternal (this=0x8a77ef8, receiver=0x8a93598, event=0xbf989ac0) at kernel/qcoreapplication.cpp:915
#17 0xb4f019de in sendSpontaneousEvent (event=0xbf989ac0, receiver=0x8a93598) at ../../src/corelib/kernel/qcoreapplication.h:234
#18 qt_sendSpontaneousEvent (receiver=0x8a93598, event=0xbf989ac0) at kernel/qapplication.cpp:5549
#19 0xb55c9217 in QGraphicsViewPrivate::mouseMoveEventHandler (this=0xb000048, event=0xbf98a2c4) at graphicsview/qgraphicsview.cpp:646
#20 0xb55cc8ef in QGraphicsView::mouseMoveEvent (this=0x99f2f88, event=0xbf98a2c4) at graphicsview/qgraphicsview.cpp:3276
#21 0xb4f5db0d in QWidget::event (this=0x99f2f88, event=0xbf98a2c4) at kernel/qwidget.cpp:8356
#22 0xb5372846 in QFrame::event (this=0x99f2f88, e=0xbf98a2c4) at widgets/qframe.cpp:557
#23 0xb54047f4 in QAbstractScrollArea::viewportEvent (this=0x99f2f88, e=0xbf98a2c4) at widgets/qabstractscrollarea.cpp:1043
#24 0xb55d039c in QGraphicsView::viewportEvent (this=0x99f2f88, event=0xbf98a2c4) at graphicsview/qgraphicsview.cpp:2866
#25 0xb5407086 in viewportEvent (event=0xbf98a2c4, this=<optimized out>) at widgets/qabstractscrollarea_p.h:100
#26 QAbstractScrollAreaFilter::eventFilter (this=0xb45fc38, o=0x8ae7ab8, e=0xbf98a2c4) at widgets/qabstractscrollarea_p.h:116
#27 0xb5a3720e in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x8a58470, receiver=0x8ae7ab8, event=0xbf98a2c4) at kernel/qcoreapplication.cpp:1025
#28 0xb4f038de in QApplicationPrivate::notify_helper (this=0x8a58470, receiver=0x8ae7ab8, e=0xbf98a2c4) at kernel/qapplication.cpp:4547
#29 0xb4f08eab in QApplication::notify (this=0x8a58470, receiver=0x8ae7ab8, e=0xbf98a2c4) at kernel/qapplication.cpp:4094
#30 0xb613cfe2 in KApplication::notify (this=0x8a77ef8, receiver=0x8ae7ab8, event=0xbf98a2c4) at /usr/src/debug/kdelibs-4.9.2/kdeui/kernel/kapplication.cpp:311
#31 0xb5a3708e in QCoreApplication::notifyInternal (this=0x8a77ef8, receiver=0x8ae7ab8, event=0xbf98a2c4) at kernel/qcoreapplication.cpp:915
#32 0xb4f04795 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#33 QApplicationPrivate::sendMouseEvent (receiver=0x8ae7ab8, event=0xbf98a2c4, alienWidget=0x8ae7ab8, nativeWidget=0xa858740, buttonDown=0xb589d4f4, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3162
#34 0xb4f8da77 in QETWidget::translateMouseEvent (this=0xa858740, event=0xbf98a6ec) at kernel/qapplication_x11.cpp:4523
#35 0xb4f8c75b in QApplication::x11ProcessEvent (this=0x8a77ef8, event=0xbf98a6ec) at kernel/qapplication_x11.cpp:3646
#36 0xb4fb61a5 in x11EventSourceDispatch (s=s@entry=0x8a58e80, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
#37 0xb219f0bb in g_main_dispatch (context=0x8a79be0) at gmain.c:2539
#38 g_main_context_dispatch (context=context@entry=0x8a79be0) at gmain.c:3075
#39 0xb219f460 in g_main_context_iterate (context=context@entry=0x8a79be0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3146
#40 0xb219f542 in g_main_context_iteration (context=0x8a79be0, may_block=1) at gmain.c:3207
#41 0xb5a69742 in QEventDispatcherGlib::processEvents (this=0x8a312b8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#42 0xb4fb5e2b in QGuiEventDispatcherGlib::processEvents (this=0x8a312b8, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#43 0xb5a35b2d in QEventLoop::processEvents (this=this@entry=0x9fc2df0, flags=...) at kernel/qeventloop.cpp:149
#44 0xb5a35e29 in QEventLoop::exec (this=0x9fc2df0, flags=...) at kernel/qeventloop.cpp:204
#45 0xb4f9b9e9 in QDragManager::drag (this=0xb8635c8, o=0xb10eb60) at kernel/qdnd_x11.cpp:2016
#46 0xb4f16da1 in QDrag::exec (this=0xb10eb60, supportedActions=..., defaultDropAction=Qt::MoveAction) at kernel/qdrag.cpp:284
#47 0xabbb3d84 in DeclarativeDragArea::mouseMoveEvent (this=0xb640530, event=0xbf98b200) at /usr/src/debug/kde-runtime-4.9.2/plasma/declarativeimports/draganddrop/DeclarativeDragArea.cpp:233
#48 0xabbb3e5c in DeclarativeDragArea::sceneEventFilter (this=0xb640530, item=0xb5db300, event=0xbf98b200) at /usr/src/debug/kde-runtime-4.9.2/plasma/declarativeimports/draganddrop/DeclarativeDragArea.cpp:245
#49 0xb55978c3 in QGraphicsScenePrivate::filterDescendantEvent (this=this@entry=0x8c1cb90, item=item@entry=0xb5db300, event=event@entry=0xbf98b200) at graphicsview/qgraphicsscene.cpp:1159
#50 0xb559e3e0 in QGraphicsScenePrivate::sendEvent (this=0x8c1cb90, item=0xb5db300, event=0xbf98b200) at graphicsview/qgraphicsscene.cpp:1211
#51 0xb559f0a5 in sendMouseEvent (mouseEvent=0xbf98b200, this=0x8c1cb90) at graphicsview/qgraphicsscene.cpp:1295
#52 QGraphicsScenePrivate::sendMouseEvent (this=0x8c1cb90, mouseEvent=0xbf98b200) at graphicsview/qgraphicsscene.cpp:1274
#53 0xb559fc34 in QGraphicsScene::mouseMoveEvent (this=0x8a93598, mouseEvent=0xbf98b200) at graphicsview/qgraphicsscene.cpp:4102
#54 0xb55b3207 in QGraphicsScene::event (this=0x8a93598, event=0xbf98b200) at graphicsview/qgraphicsscene.cpp:3451
#55 0xb4f0390c in QApplicationPrivate::notify_helper (this=0x8a58470, receiver=0x8a93598, e=0xbf98b200) at kernel/qapplication.cpp:4551
#56 0xb4f083cf in QApplication::notify (this=0xbf98b200, receiver=0x8a93598, e=0xbf98b200) at kernel/qapplication.cpp:3933
#57 0xb613cfe2 in KApplication::notify (this=0x8a77ef8, receiver=0x8a93598, event=0xbf98b200) at /usr/src/debug/kdelibs-4.9.2/kdeui/kernel/kapplication.cpp:311
#58 0xb5a3708e in QCoreApplication::notifyInternal (this=0x8a77ef8, receiver=0x8a93598, event=0xbf98b200) at kernel/qcoreapplication.cpp:915
#59 0xb4f019de in sendSpontaneousEvent (event=0xbf98b200, receiver=0x8a93598) at ../../src/corelib/kernel/qcoreapplication.h:234
#60 qt_sendSpontaneousEvent (receiver=0x8a93598, event=0xbf98b200) at kernel/qapplication.cpp:5549
#61 0xb55c9217 in QGraphicsViewPrivate::mouseMoveEventHandler (this=0xa9828d8, event=0xbf98ba04) at graphicsview/qgraphicsview.cpp:646
#62 0xb55cc8ef in QGraphicsView::mouseMoveEvent (this=0xa4a7e70, event=0xbf98ba04) at graphicsview/qgraphicsview.cpp:3276
#63 0xb4f5db0d in QWidget::event (this=0xa4a7e70, event=0xbf98ba04) at kernel/qwidget.cpp:8356
#64 0xb5372846 in QFrame::event (this=0xa4a7e70, e=0xbf98ba04) at widgets/qframe.cpp:557
#65 0xb54047f4 in QAbstractScrollArea::viewportEvent (this=0xa4a7e70, e=0xbf98ba04) at widgets/qabstractscrollarea.cpp:1043
#66 0xb55d039c in QGraphicsView::viewportEvent (this=0xa4a7e70, event=0xbf98ba04) at graphicsview/qgraphicsview.cpp:2866
#67 0xb5407086 in viewportEvent (event=0xbf98ba04, this=<optimized out>) at widgets/qabstractscrollarea_p.h:100
#68 QAbstractScrollAreaFilter::eventFilter (this=0xa3146b8, o=0xa49cf70, e=0xbf98ba04) at widgets/qabstractscrollarea_p.h:116
#69 0xb5a3720e in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x8a58470, receiver=0xa49cf70, event=0xbf98ba04) at kernel/qcoreapplication.cpp:1025
#70 0xb4f038de in QApplicationPrivate::notify_helper (this=0x8a58470, receiver=0xa49cf70, e=0xbf98ba04) at kernel/qapplication.cpp:4547
#71 0xb4f08eab in QApplication::notify (this=0x8a58470, receiver=0xa49cf70, e=0xbf98ba04) at kernel/qapplication.cpp:4094
#72 0xb613cfe2 in KApplication::notify (this=0x8a77ef8, receiver=0xa49cf70, event=0xbf98ba04) at /usr/src/debug/kdelibs-4.9.2/kdeui/kernel/kapplication.cpp:311
#73 0xb5a3708e in QCoreApplication::notifyInternal (this=0x8a77ef8, receiver=0xa49cf70, event=0xbf98ba04) at kernel/qcoreapplication.cpp:915
#74 0xb4f04795 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#75 QApplicationPrivate::sendMouseEvent (receiver=0xa49cf70, event=0xbf98ba04, alienWidget=0xa49cf70, nativeWidget=0xa874d20, buttonDown=0xb589d4f4, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3162
#76 0xb4f8da77 in QETWidget::translateMouseEvent (this=0xa874d20, event=0xbf98be2c) at kernel/qapplication_x11.cpp:4523
#77 0xb4f8c75b in QApplication::x11ProcessEvent (this=0x8a77ef8, event=0xbf98be2c) at kernel/qapplication_x11.cpp:3646
#78 0xb4fb61a5 in x11EventSourceDispatch (s=s@entry=0x8a58e80, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
#79 0xb219f0bb in g_main_dispatch (context=0x8a79be0) at gmain.c:2539
#80 g_main_context_dispatch (context=context@entry=0x8a79be0) at gmain.c:3075
#81 0xb219f460 in g_main_context_iterate (context=context@entry=0x8a79be0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3146
#82 0xb219f542 in g_main_context_iteration (context=0x8a79be0, may_block=1) at gmain.c:3207
#83 0xb5a69742 in QEventDispatcherGlib::processEvents (this=0x8a312b8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#84 0xb4fb5e2b in QGuiEventDispatcherGlib::processEvents (this=0x8a312b8, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#85 0xb5a35b2d in QEventLoop::processEvents (this=this@entry=0xbf98c128, flags=...) at kernel/qeventloop.cpp:149
#86 0xb5a35e29 in QEventLoop::exec (this=0xbf98c128, flags=...) at kernel/qeventloop.cpp:204
#87 0xb5a3b36b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#88 0xb4f01765 in QApplication::exec () at kernel/qapplication.cpp:3812
#89 0xb773d656 in kdemain (argc=1, argv=0xbf98c2e4) at /usr/src/debug/kde-workspace-4.9.2/plasma/desktop/shell/main.cpp:120
#90 0x0804879c in main (argc=1, argv=0xbf98c2e4) at /usr/src/debug/kde-workspace-4.9.2/i686-redhat-linux-gnu/plasma/desktop/shell/plasma-desktop_dummy.cpp:3

This bug may be a duplicate of or related to bug 306845.

Possible duplicates by query: bug 307660, bug 307487, bug 306845, bug 304939.

Reported using DrKonqi
Comment 1 Martin Flöser 2013-05-29 13:24:14 UTC 
Thank you for this crash report and helping to improve our software. Unfortunately we were not able to work on this specific report yet. Nowadays the version this crash was reported against is no longer maintained and this makes it very difficult to work on this report as the source code might have changed and the information in the backtrace is no longer valid. 

Also it is quite likely that this problem got fixed in a later version. Crash reports are very often reported multiple times.

If you are able to reproduce this crash with the latest version of KDE Plasma (4.10.3) please reopen this report and adjust the version information in the dropdown above and please also include a new backtrace as generated by the crash reporting tool. Please also make sure that the steps on how to reproduce the crash are precise and correct. Thank you!
Comment 2 Thiago Jung Bauermann 2013-06-17 13:44:56 UTC 
Created attachment 80584 [details]
New crash information added by DrKonqi

plasma-desktop (4.10.4) on KDE Platform 4.10.4 using Qt 4.8.2

- What I was doing when the application crashed:

I'm using Kubuntu 12.04.2 LTS with KDE 4.10.4, so this issue wasn't fixed yet in the latest KDE release. My backtrace is nearly identical to the one above, except that mine has only one call to sendMouseEvent while the one from the original poster has two.

I was dragging the Activities widget to the panel when the desktop crashed. The panel didn't make space for the new widget, and the mouse cursor had the simbol which says that the dragged can't be dropped where the cursor is. I don't know if it makes any difference, but my panel is vertical, docked on the right-hand side of the screen.

Also, bug 315303 has a very similar backtrace and might be related.

-- Backtrace (Reduced):
#7  QGraphicsScenePrivate::filterDescendantEvent (this=0x8789cc0, item=0xad04f28, event=0xbfefaed4) at graphicsview/qgraphicsscene.cpp:1161
#8  0x447dc014 in QGraphicsScenePrivate::sendEvent (this=0x8789cc0, item=0xad04f28, event=0xbfefaed4) at graphicsview/qgraphicsscene.cpp:1211
#9  0x447dccb3 in QGraphicsScenePrivate::sendMouseEvent (this=0x8789cc0, mouseEvent=0xbfefaed4) at graphicsview/qgraphicsscene.cpp:1295
#10 0x447dd873 in QGraphicsScene::mouseMoveEvent (this=0x878e2a0, mouseEvent=0xbfefaed4) at graphicsview/qgraphicsscene.cpp:4102
#11 0x447ec137 in QGraphicsScene::event (this=0x878e2a0, event=0xbfefaed4) at graphicsview/qgraphicsscene.cpp:3451
Comment 3 Thiago Jung Bauermann 2013-06-17 13:46:58 UTC 
Hm, I thought DrKonqui would automatically reopen the bug, and apparently I can't do that myself, so please reopen it.