Bug 294918

Application: dolphin (2.0)
KDE Platform Version: 4.8.00 (4.8.0)
Qt Version: 4.8.0
Operating System: Linux 3.3.0-0.rc4.git1.4.fc17.x86_64 x86_64
Distribution: "Fedora release 17 (Beefy Miracle)"

-- Information about the crash:
- What I was doing when the application crashed:
I was draging some PDF-file to the auto hiding task-bar panel. Disabeling switching the panel from auto-hide to always visible solves the problem.
The problem is always reproducable. But draging the file to some panel that does not containg the task-bar it sometimes crasches, and sometimes not.

The crash can be reproduced every time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fed7b17b880 (LWP 2733))]

Thread 2 (Thread 0x7fed70816700 (LWP 2734)):
#0  0x0000003ce380e07d in read () from /lib64/libpthread.so.0
#1  0x0000003b144827af in ?? () from /lib64/libglib-2.0.so.0
#2  0x0000003b144474fa in g_main_context_check () from /lib64/libglib-2.0.so.0
#3  0x0000003b14447a02 in ?? () from /lib64/libglib-2.0.so.0
#4  0x0000003b14447b84 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x0000003b165a2976 in QEventDispatcherGlib::processEvents (this=0x7fed6c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x0000003b1657382f in QEventLoop::processEvents (this=this@entry=0x7fed70815cf0, flags=...) at kernel/qeventloop.cpp:149
#7  0x0000003b16573ab8 in QEventLoop::exec (this=0x7fed70815cf0, flags=...) at kernel/qeventloop.cpp:204
#8  0x0000003b16478588 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x0000003b1655467f in QInotifyFileSystemWatcherEngine::run (this=0x135e4f0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x0000003b1647b4cb in QThreadPrivate::start (arg=0x135e4f0) at thread/qthread_unix.cpp:298
#11 0x0000003ce3807d14 in start_thread () from /lib64/libpthread.so.0
#12 0x0000003ce30f105d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fed7b17b880 (LWP 2733)):
[KCrash Handler]
#6  0x0000003b17808c6f in QWidget::testAttribute_helper (this=0x17a3c10, attribute=Qt::WA_Hover) at kernel/qwidget.cpp:11033
#7  0x0000003b177cf1d5 in testAttribute (attribute=Qt::WA_Hover, this=0x17a3c10) at ../../src/gui/kernel/qwidget.h:1042
#8  QApplication::notify (this=<optimized out>, receiver=0x17a3c10, e=0x7fff9668fb00) at kernel/qapplication.cpp:4115
#9  0x0000003b19844a46 in KApplication::notify (this=0x7fff96692c20, receiver=0x17a3c10, event=0x7fff9668fb00) at /usr/src/debug/kdelibs-4.8.0/kdeui/kernel/kapplication.cpp:311
#10 0x0000003b1657482e in QCoreApplication::notifyInternal (this=0x7fff96692c20, receiver=0x17a3c10, event=0x7fff9668fb00) at kernel/qcoreapplication.cpp:876
#11 0x0000003b177cb11b in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#12 QApplicationPrivate::sendMouseEvent (receiver=0x17a3c10, event=0x7fff9668fb00, alienWidget=0x0, nativeWidget=0x17a3c10, buttonDown=0x3b182a0d68, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3161
#13 0x0000003b1784544e in QETWidget::translateMouseEvent (this=this@entry=0x17a3c10, event=event@entry=0x7fff96690270) at kernel/qapplication_x11.cpp:4520
#14 0x0000003b178441c1 in QApplication::x11ProcessEvent (this=0x7fff96692c20, event=0x7fff96690270) at kernel/qapplication_x11.cpp:3641
#15 0x0000003b17869f2c in x11EventSourceDispatch (s=0x11f18c0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
#16 0x0000003b144476ac in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#17 0x0000003b14447ac8 in ?? () from /lib64/libglib-2.0.so.0
#18 0x0000003b14447b84 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#19 0x0000003b165a2956 in QEventDispatcherGlib::processEvents (this=0x11f6990, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#20 0x0000003b17869c0e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#21 0x0000003b1657382f in QEventLoop::processEvents (this=this@entry=0x17a4460, flags=...) at kernel/qeventloop.cpp:149
#22 0x0000003b16573ab8 in QEventLoop::exec (this=0x17a4460, flags=...) at kernel/qeventloop.cpp:204
#23 0x0000003b178520d6 in QDragManager::drag (this=0x162d1d0, o=<optimized out>) at kernel/qdnd_x11.cpp:1987
#24 0x0000003b177db958 in QDrag::exec (this=0x17154f0, supportedActions=..., defaultDropAction=Qt::CopyAction) at kernel/qdrag.cpp:284
#25 0x0000003b1a2656f5 in KItemListController::startDragging() () from /lib64/libdolphinprivate.so.4
#26 0x0000003b1a26585e in KItemListController::mouseMoveEvent(QGraphicsSceneMouseEvent*, QTransform const&) () from /lib64/libdolphinprivate.so.4
#27 0x0000003b1a26503e in KItemListController::processEvent(QEvent*, QTransform const&) () from /lib64/libdolphinprivate.so.4
#28 0x0000003b1a26fa35 in KItemListView::event(QEvent*) () from /lib64/libdolphinprivate.so.4
#29 0x0000003b177ca2dc in QApplicationPrivate::notify_helper (this=this@entry=0x11f3a60, receiver=receiver@entry=0x14c3f50, e=e@entry=0x7fff96691560) at kernel/qapplication.cpp:4550
#30 0x0000003b177ce85a in QApplication::notify (this=0x7fff96692c20, receiver=0x14c3f50, e=0x7fff96691560) at kernel/qapplication.cpp:4411
#31 0x0000003b19844a46 in KApplication::notify (this=0x7fff96692c20, receiver=0x14c3f50, event=0x7fff96691560) at /usr/src/debug/kdelibs-4.8.0/kdeui/kernel/kapplication.cpp:311
#32 0x0000003b1657482e in QCoreApplication::notifyInternal (this=0x7fff96692c20, receiver=0x14c3f50, event=0x7fff96691560) at kernel/qcoreapplication.cpp:876
#33 0x0000003b17daf4ab in sendEvent (event=0x7fff96691560, item=0x14c3f60, this=<optimized out>) at graphicsview/qgraphicsscene.cpp:1213
#34 QGraphicsScenePrivate::sendEvent (this=<optimized out>, item=0x14c3f60, event=0x7fff96691560) at graphicsview/qgraphicsscene.cpp:1193
#35 0x0000003b17db0090 in QGraphicsScenePrivate::sendMouseEvent (this=this@entry=0x14832b0, mouseEvent=mouseEvent@entry=0x7fff96691560) at graphicsview/qgraphicsscene.cpp:1291
#36 0x0000003b17db0bcc in QGraphicsScene::mouseMoveEvent (this=<optimized out>, mouseEvent=0x7fff96691560) at graphicsview/qgraphicsscene.cpp:4098
#37 0x0000003b17dc2cc0 in QGraphicsScene::event (this=0x1483290, event=0x7fff96691560) at graphicsview/qgraphicsscene.cpp:3447
#38 0x0000003b177ca2dc in QApplicationPrivate::notify_helper (this=this@entry=0x11f3a60, receiver=receiver@entry=0x1483290, e=e@entry=0x7fff96691560) at kernel/qapplication.cpp:4550
#39 0x0000003b177ce85a in QApplication::notify (this=0x7fff96692c20, receiver=0x1483290, e=0x7fff96691560) at kernel/qapplication.cpp:4411
#40 0x0000003b19844a46 in KApplication::notify (this=0x7fff96692c20, receiver=0x1483290, event=0x7fff96691560) at /usr/src/debug/kdelibs-4.8.0/kdeui/kernel/kapplication.cpp:311
#41 0x0000003b1657482e in QCoreApplication::notifyInternal (this=0x7fff96692c20, receiver=0x1483290, event=0x7fff96691560) at kernel/qcoreapplication.cpp:876
#42 0x0000003b17dd6000 in QGraphicsViewPrivate::mouseMoveEventHandler (this=this@entry=0x1483a30, event=event@entry=0x7fff96691fa0) at graphicsview/qgraphicsview.cpp:646
#43 0x0000003b17dd8ffe in QGraphicsView::mouseMoveEvent (this=0x1483a00, event=0x7fff96691fa0) at graphicsview/qgraphicsview.cpp:3276
#44 0x0000003b17819bbc in QWidget::event (this=0x1483a00, event=0x7fff96691fa0) at kernel/qwidget.cpp:8346
#45 0x0000003b17bc3fd6 in QFrame::event (this=0x1483a00, e=0x7fff96691fa0) at widgets/qframe.cpp:557
#46 0x0000003b17ddc34b in QGraphicsView::viewportEvent (this=0x1483a00, event=0x7fff96691fa0) at graphicsview/qgraphicsview.cpp:2866
#47 0x0000003b16574996 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x14c2e90, event=0x7fff96691fa0) at kernel/qcoreapplication.cpp:986
#48 0x0000003b177ca2ac in QApplicationPrivate::notify_helper (this=this@entry=0x11f3a60, receiver=receiver@entry=0x14c2e90, e=e@entry=0x7fff96691fa0) at kernel/qapplication.cpp:4546
#49 0x0000003b177cf120 in QApplication::notify (this=<optimized out>, receiver=0x14c2e90, e=0x7fff96691fa0) at kernel/qapplication.cpp:4093
#50 0x0000003b19844a46 in KApplication::notify (this=0x7fff96692c20, receiver=0x14c2e90, event=0x7fff96691fa0) at /usr/src/debug/kdelibs-4.8.0/kdeui/kernel/kapplication.cpp:311
#51 0x0000003b1657482e in QCoreApplication::notifyInternal (this=0x7fff96692c20, receiver=0x14c2e90, event=0x7fff96691fa0) at kernel/qcoreapplication.cpp:876
#52 0x0000003b177cb11b in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#53 QApplicationPrivate::sendMouseEvent (receiver=0x14c2e90, event=0x7fff96691fa0, alienWidget=0x14c2e90, nativeWidget=0x12339e0, buttonDown=0x3b182a0d68, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3161
#54 0x0000003b1784544e in QETWidget::translateMouseEvent (this=this@entry=0x12339e0, event=event@entry=0x7fff96692710) at kernel/qapplication_x11.cpp:4520
#55 0x0000003b178441c1 in QApplication::x11ProcessEvent (this=0x7fff96692c20, event=0x7fff96692710) at kernel/qapplication_x11.cpp:3641
#56 0x0000003b17869f2c in x11EventSourceDispatch (s=0x11f18c0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
#57 0x0000003b144476ac in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#58 0x0000003b14447ac8 in ?? () from /lib64/libglib-2.0.so.0
#59 0x0000003b14447b84 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#60 0x0000003b165a2956 in QEventDispatcherGlib::processEvents (this=0x11f6990, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#61 0x0000003b17869c0e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#62 0x0000003b1657382f in QEventLoop::processEvents (this=this@entry=0x7fff96692ae0, flags=...) at kernel/qeventloop.cpp:149
#63 0x0000003b16573ab8 in QEventLoop::exec (this=0x7fff96692ae0, flags=...) at kernel/qeventloop.cpp:204
#64 0x0000003b165782fc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#65 0x0000003b1d046984 in kdemain () from /lib64/libkdeinit4_dolphin.so
#66 0x0000003ce3021735 in __libc_start_main () from /lib64/libc.so.6
#67 0x0000000000400831 in _start ()

This bug may be a duplicate of or related to bug 289205.

Possible duplicates by query: bug 289205, bug 287942, bug 281502, bug 280784, bug 280468.

Reported using DrKonqi