Bug 250032

Application: plasma-desktop (0.3)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-24-generic i686
Distribution: Ubuntu 10.04.1 LTS

-- Information about the crash:
Dragging an icon to the end of the bar (specifically to the right) causes the crash.

The crash can be reproduced every time.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7877aa0 (LWP 1324))]

Thread 2 (Thread 0xa9beab70 (LWP 1327)):
#0  0x0039a40b in pthread_mutex_unlock () from /lib/tls/i686/cmov/libpthread.so.0
#1  0x06e37326 in g_main_context_acquire () from /lib/libglib-2.0.so.0
#2  0x06e38e5e in ?? () from /lib/libglib-2.0.so.0
#3  0x06e394b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#4  0x00b1360f in QEventDispatcherGlib::processEvents (this=0x91c17e8, flags=...) at kernel/qeventdispatcher_glib.cpp:414
#5  0x00ae6059 in QEventLoop::processEvents (this=0xa9bea290, flags=) at kernel/qeventloop.cpp:149
#6  0x00ae64aa in QEventLoop::exec (this=0xa9bea290, flags=...) at kernel/qeventloop.cpp:201
#7  0x009e25a8 in QThread::exec (this=0x91bea58) at thread/qthread.cpp:487
#8  0x00ac5c1b in QInotifyFileSystemWatcherEngine::run (this=0x91bea58) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x009e532e in QThreadPrivate::start (arg=0x91bea58) at thread/qthread_unix.cpp:248
#10 0x0039696e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#11 0x070a3a4e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb7877aa0 (LWP 1324)):
[KCrash Handler]
#6  _scheme (this=0x8ba8f18, parseOptions=QUrlPrivate::ParseAndSet) at io/qurl.cpp:446
#7  QUrlPrivate::parse (this=0x8ba8f18, parseOptions=QUrlPrivate::ParseAndSet) at io/qurl.cpp:3743
#8  0x00a9f013 in QUrl::scheme (this=0xbfd5642c) at io/qurl.cpp:4369
#9  0x00d3f729 in KUrl::prettyUrl (this=0xbfd5642c, trailing=KUrl::LeaveTrailingSlash) at ../../kdecore/io/kurl.cpp:1048
#10 0x044f2dca in QuicklaunchApplet::saveState (this=0x9105358, config=...) at ../../../../../plasma/generic/applets/quicklaunch/quicklaunchApplet.cpp:105
#11 0x044f17ce in QuicklaunchApplet::saveConfig (this=0x9105358) at ../../../../../plasma/generic/applets/quicklaunch/quicklaunchApplet.cpp:97
#12 0x044f436d in QuicklaunchApplet::dropApp (this=0x9105358, event=0xbfd57020, droppedOnDialog=false) at ../../../../../plasma/generic/applets/quicklaunch/quicklaunchApplet.cpp:563
#13 0x044f4608 in QuicklaunchApplet::eventFilter (this=0x9105358, object=0x941fa88, event=0xbfd57020) at ../../../../../plasma/generic/applets/quicklaunch/quicklaunchApplet.cpp:605
#14 0x00ae6cda in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x8abb050, receiver=0x941fa88, event=0xbfd57020) at kernel/qcoreapplication.cpp:819
#15 0x010af4b9 in QApplicationPrivate::notify_helper (this=0x8abb050, receiver=0x941fa88, e=0xbfd57020) at kernel/qapplication.cpp:4296
#16 0x010b605e in QApplication::notify (this=0x8ab4ed8, receiver=0x941fa88, e=0xbfd57020) at kernel/qapplication.cpp:3704
#17 0x00594f2a in KApplication::notify (this=0x8ab4ed8, receiver=0x941fa88, event=0xbfd57020) at ../../kdeui/kernel/kapplication.cpp:302
#18 0x00ae7a3b in QCoreApplication::notifyInternal (this=0x8ab4ed8, receiver=0x941fa88, event=0xbfd57020) at kernel/qcoreapplication.cpp:704
#19 0x01745d77 in QCoreApplication::sendEvent (this=0x8b27b40, item=0x941fa90, event=0xbfd57020) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QGraphicsScenePrivate::sendEvent (this=0x8b27b40, item=0x941fa90, event=0xbfd57020) at graphicsview/qgraphicsscene.cpp:1177
#21 0x01746188 in QGraphicsScenePrivate::sendDragDropEvent (this=0x8b27b40, item=0x941fa90, dragDropEvent=0xbfd57020) at graphicsview/qgraphicsscene.cpp:1210
#22 0x017461ca in QGraphicsScene::dropEvent (this=0x8b26d18, event=0xbfd57020) at graphicsview/qgraphicsscene.cpp:3691
#23 0x0175b5cc in QGraphicsScene::event (this=0x8b26d18, event=0xbfd57020) at graphicsview/qgraphicsscene.cpp:3349
#24 0x010af4dc in QApplicationPrivate::notify_helper (this=0x8abb050, receiver=0x8b26d18, e=0xbfd57020) at kernel/qapplication.cpp:4300
#25 0x010b605e in QApplication::notify (this=0x8ab4ed8, receiver=0x8b26d18, e=0xbfd57020) at kernel/qapplication.cpp:3704
#26 0x00594f2a in KApplication::notify (this=0x8ab4ed8, receiver=0x8b26d18, event=0xbfd57020) at ../../kdeui/kernel/kapplication.cpp:302
#27 0x00ae7a3b in QCoreApplication::notifyInternal (this=0x8ab4ed8, receiver=0x8b26d18, event=0xbfd57020) at kernel/qcoreapplication.cpp:704
#28 0x0177b0bd in QCoreApplication::sendEvent (this=0x941f158, event=0xbfd57700) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#29 QGraphicsView::dropEvent (this=0x941f158, event=0xbfd57700) at graphicsview/qgraphicsview.cpp:2833
#30 0x0110d7c0 in QWidget::event (this=0x941f158, event=0xbfd57700) at kernel/qwidget.cpp:8188
#31 0x01509fd3 in QFrame::event (this=0x941f158, e=0xbfd57700) at widgets/qframe.cpp:557
#32 0x015a4382 in QAbstractScrollArea::viewportEvent (this=0x0, e=0x8baaba0) at widgets/qabstractscrollarea.cpp:1036
#33 0x0177a06b in QGraphicsView::viewportEvent (this=0x941f158, event=0xbfd57700) at graphicsview/qgraphicsview.cpp:2787
#34 0x015a6c65 in QAbstractScrollAreaPrivate::viewportEvent (this=0x8e70108, o=0x941bbc0, e=0xbfd57700) at widgets/qabstractscrollarea_p.h:100
#35 QAbstractScrollAreaFilter::eventFilter (this=0x8e70108, o=0x941bbc0, e=0xbfd57700) at widgets/qabstractscrollarea_p.h:116
#36 0x00ae6cda in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x8abb050, receiver=0x941bbc0, event=0xbfd57700) at kernel/qcoreapplication.cpp:819
#37 0x010af4b9 in QApplicationPrivate::notify_helper (this=0x8abb050, receiver=0x941bbc0, e=0xbfd57700) at kernel/qapplication.cpp:4296
#38 0x010b653d in QApplication::notify (this=0x8ab4ed8, receiver=0x941bbc0, e=0xbfd57700) at kernel/qapplication.cpp:4108
#39 0x00594f2a in KApplication::notify (this=0x8ab4ed8, receiver=0x941bbc0, event=0xbfd57700) at ../../kdeui/kernel/kapplication.cpp:302
#40 0x00ae7a3b in QCoreApplication::notifyInternal (this=0x8ab4ed8, receiver=0x941bbc0, event=0xbfd57700) at kernel/qcoreapplication.cpp:704
#41 0x0114fd35 in QCoreApplication::sendEvent (this=0x8abe568, xe=0xbfd577fc, passive=false) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#42 QX11Data::xdndHandleDrop (this=0x8abe568, xe=0xbfd577fc, passive=false) at kernel/qdnd_x11.cpp:1168
#43 0x01150046 in QDragManager::drop (this=0x9bcb4b0) at kernel/qdnd_x11.cpp:1724
#44 0x011522fa in QDragManager::eventFilter (this=0x9bcb4b0, o=0x9ae83c8, e=0xbfd57d50) at kernel/qdnd_x11.cpp:1297
#45 0x00ae6d9c in QCoreApplicationPrivate::sendThroughApplicationEventFilters (this=0x8abb050, receiver=0x9ae83c8, event=0xbfd57d50) at kernel/qcoreapplication.cpp:800
#46 0x010af463 in QApplicationPrivate::notify_helper (this=0x8abb050, receiver=0x9ae83c8, e=0xbfd57d50) at kernel/qapplication.cpp:4275
#47 0x010b69f7 in QApplication::notify (this=0x8ab4ed8, receiver=0x9ae83c8, e=0xbfd57d50) at kernel/qapplication.cpp:3865
#48 0x00594f2a in KApplication::notify (this=0x8ab4ed8, receiver=0x9ae83c8, event=0xbfd57d50) at ../../kdeui/kernel/kapplication.cpp:302
#49 0x00ae7a3b in QCoreApplication::notifyInternal (this=0x8ab4ed8, receiver=0x9ae83c8, event=0xbfd57d50) at kernel/qcoreapplication.cpp:704
#50 0x010b5952 in QCoreApplication::sendEvent (receiver=0x9ae83c8, event=0xbfd57d50, alienWidget=0x0, nativeWidget=0x9ae83c8, buttonDown=0x19f3058, lastMouseReceiver=..., spontaneous=true)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#51 QApplicationPrivate::sendMouseEvent (receiver=0x9ae83c8, event=0xbfd57d50, alienWidget=0x0, nativeWidget=0x9ae83c8, buttonDown=0x19f3058, lastMouseReceiver=..., spontaneous=true)
    at kernel/qapplication.cpp:2965
#52 0x01141088 in QETWidget::translateMouseEvent (this=0x9ae83c8, event=0xbfd5826c) at kernel/qapplication_x11.cpp:4368
#53 0x01140511 in QApplication::x11ProcessEvent (this=0x8ab4ed8, event=0xbfd5826c) at kernel/qapplication_x11.cpp:3379
#54 0x0116f60a in x11EventSourceDispatch (s=0x8abdd40, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#55 0x06e355e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#56 0x06e392d8 in ?? () from /lib/libglib-2.0.so.0
#57 0x06e394b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#58 0x00b135d5 in QEventDispatcherGlib::processEvents (this=0x8abad20, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#59 0x0116f135 in QGuiEventDispatcherGlib::processEvents (this=0x8abad20, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#60 0x00ae6059 in QEventLoop::processEvents (this=0x989a3a8, flags=) at kernel/qeventloop.cpp:149
#61 0x00ae64aa in QEventLoop::exec (this=0x989a3a8, flags=...) at kernel/qeventloop.cpp:201
#62 0x0115547d in QDragManager::drag (this=0x9bcb4b0, o=0x91855b8) at kernel/qdnd_x11.cpp:1984
#63 0x010c799e in QDrag::exec (this=0x91855b8, supportedActions=..., defaultDropAction=Qt::IgnoreAction) at kernel/qdrag.cpp:282
#64 0x010c7a54 in QDrag::exec (this=0x91855b8, supportedActions=...) at kernel/qdrag.cpp:239
#65 0x044f4a16 in QuicklaunchApplet::eventFilter (this=0x9105358, object=0x9417a38, event=0xbfd592c4) at ../../../../../plasma/generic/applets/quicklaunch/quicklaunchApplet.cpp:589
#66 0x00ae6cda in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x8abb050, receiver=0x9417a38, event=0xbfd592c4) at kernel/qcoreapplication.cpp:819
#67 0x010af4b9 in QApplicationPrivate::notify_helper (this=0x8abb050, receiver=0x9417a38, e=0xbfd592c4) at kernel/qapplication.cpp:4296
#68 0x010b605e in QApplication::notify (this=0x8ab4ed8, receiver=0x9417a38, e=0xbfd592c4) at kernel/qapplication.cpp:3704
#69 0x00594f2a in KApplication::notify (this=0x8ab4ed8, receiver=0x9417a38, event=0xbfd592c4) at ../../kdeui/kernel/kapplication.cpp:302
#70 0x00ae7a3b in QCoreApplication::notifyInternal (this=0x8ab4ed8, receiver=0x9417a38, event=0xbfd592c4) at kernel/qcoreapplication.cpp:704
#71 0x010b02be in QCoreApplication::sendSpontaneousEvent (receiver=0x9417a38, event=0x8baaba0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#72 qt_sendSpontaneousEvent (receiver=0x9417a38, event=0x8baaba0) at kernel/qapplication.cpp:5279
#73 0x01745dbc in QGraphicsScenePrivate::sendEvent (this=0x8b27b40, item=0x9417a40, event=0xbfd592c4) at graphicsview/qgraphicsscene.cpp:1177
#74 0x0174826b in QGraphicsScenePrivate::sendMouseEvent (this=0x8b27b40, mouseEvent=0xbfd592c4) at graphicsview/qgraphicsscene.cpp:1255
#75 0x0174c2ad in QGraphicsScene::mouseMoveEvent (this=0x8b26d18, mouseEvent=0xbfd592c4) at graphicsview/qgraphicsscene.cpp:4031
#76 0x0175b75d in QGraphicsScene::event (this=0x8b26d18, event=0xbfd592c4) at graphicsview/qgraphicsscene.cpp:3391
#77 0x010af4dc in QApplicationPrivate::notify_helper (this=0x8abb050, receiver=0x8b26d18, e=0xbfd592c4) at kernel/qapplication.cpp:4300
#78 0x010b605e in QApplication::notify (this=0x8ab4ed8, receiver=0x8b26d18, e=0xbfd592c4) at kernel/qapplication.cpp:3704
#79 0x00594f2a in KApplication::notify (this=0x8ab4ed8, receiver=0x8b26d18, event=0xbfd592c4) at ../../kdeui/kernel/kapplication.cpp:302
#80 0x00ae7a3b in QCoreApplication::notifyInternal (this=0x8ab4ed8, receiver=0x8b26d18, event=0xbfd592c4) at kernel/qcoreapplication.cpp:704
#81 0x010b02be in QCoreApplication::sendSpontaneousEvent (receiver=0x8b26d18, event=0x8baaba0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#82 qt_sendSpontaneousEvent (receiver=0x8b26d18, event=0x8baaba0) at kernel/qapplication.cpp:5279
#83 0x0177c5f2 in QGraphicsViewPrivate::mouseMoveEventHandler (this=0x9421d78, event=0xbfd59b00) at graphicsview/qgraphicsview.cpp:645
#84 0x0177c836 in QGraphicsView::mouseMoveEvent (this=0x941f158, event=0xbfd59b00) at graphicsview/qgraphicsview.cpp:3197
#85 0x0110d69a in QWidget::event (this=0x941f158, event=0xbfd59b00) at kernel/qwidget.cpp:7983
#86 0x01509fd3 in QFrame::event (this=0x941f158, e=0xbfd59b00) at widgets/qframe.cpp:557
#87 0x015a4382 in QAbstractScrollArea::viewportEvent (this=0x0, e=0x8baaba0) at widgets/qabstractscrollarea.cpp:1036
#88 0x0177a06b in QGraphicsView::viewportEvent (this=0x941f158, event=0xbfd59b00) at graphicsview/qgraphicsview.cpp:2787
#89 0x015a6c65 in QAbstractScrollAreaPrivate::viewportEvent (this=0x8e70108, o=0x941bbc0, e=0xbfd59b00) at widgets/qabstractscrollarea_p.h:100
#90 QAbstractScrollAreaFilter::eventFilter (this=0x8e70108, o=0x941bbc0, e=0xbfd59b00) at widgets/qabstractscrollarea_p.h:116
#91 0x00ae6cda in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x8abb050, receiver=0x941bbc0, event=0xbfd59b00) at kernel/qcoreapplication.cpp:819
#92 0x010af4b9 in QApplicationPrivate::notify_helper (this=0x8abb050, receiver=0x941bbc0, e=0xbfd59b00) at kernel/qapplication.cpp:4296
#93 0x010b69f7 in QApplication::notify (this=0x8ab4ed8, receiver=0x941bbc0, e=0xbfd59b00) at kernel/qapplication.cpp:3865
#94 0x00594f2a in KApplication::notify (this=0x8ab4ed8, receiver=0x941bbc0, event=0xbfd59b00) at ../../kdeui/kernel/kapplication.cpp:302
#95 0x00ae7a3b in QCoreApplication::notifyInternal (this=0x8ab4ed8, receiver=0x941bbc0, event=0xbfd59b00) at kernel/qcoreapplication.cpp:704
#96 0x010b5952 in QCoreApplication::sendEvent (receiver=0x941bbc0, event=0xbfd59b00, alienWidget=0x941bbc0, nativeWidget=0x941f158, buttonDown=0x19f3058, lastMouseReceiver=..., spontaneous=true)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#97 QApplicationPrivate::sendMouseEvent (receiver=0x941bbc0, event=0xbfd59b00, alienWidget=0x941bbc0, nativeWidget=0x941f158, buttonDown=0x19f3058, lastMouseReceiver=..., spontaneous=true)
    at kernel/qapplication.cpp:2965
#98 0x01141088 in QETWidget::translateMouseEvent (this=0x941f158, event=0xbfd5a01c) at kernel/qapplication_x11.cpp:4368
#99 0x01140511 in QApplication::x11ProcessEvent (this=0x8ab4ed8, event=0xbfd5a01c) at kernel/qapplication_x11.cpp:3379
#100 0x0116f60a in x11EventSourceDispatch (s=0x8abdd40, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#101 0x06e355e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#102 0x06e392d8 in ?? () from /lib/libglib-2.0.so.0
#103 0x06e394b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#104 0x00b135d5 in QEventDispatcherGlib::processEvents (this=0x8abad20, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#105 0x0116f135 in QGuiEventDispatcherGlib::processEvents (this=0x8abad20, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#106 0x00ae6059 in QEventLoop::processEvents (this=0xbfd5a314, flags=) at kernel/qeventloop.cpp:149
#107 0x00ae64aa in QEventLoop::exec (this=0xbfd5a314, flags=...) at kernel/qeventloop.cpp:201
#108 0x00aea69f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#109 0x010af577 in QApplication::exec () at kernel/qapplication.cpp:3579
#110 0x020ff05e in kdemain (argc=1, argv=0x8aa9460) at ../../../../plasma/desktop/shell/main.cpp:112
#111 0x0804e133 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x8a84640 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x8051465 "0") at ../../kinit/kinit.cpp:717
#112 0x0804ec6d in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1209
#113 0x0804f190 in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1402
#114 0x0804fe4f in main (argc=4, argv=0xbfd5adc4, envp=0xbfd5add8) at ../../kinit/kinit.cpp:1845

Reported using DrKonqi