Application: dolphin (2.1)
KDE Platform Version: 4.9.00
Qt Version: 4.8.1
Operating System: Linux 3.2.0-26-generic x86_64
Distribution: Ubuntu 12.04 LTS

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

* Draging multiple files
* Alt+Tab
* Press Esc to cancel before droping (or drop it to a denied area)

- Unusual behavior I noticed:

Dolphin crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f37012b2780 (LWP 16002))]

Thread 3 (Thread 0x7f36e6963700 (LWP 16006)):
#0  0x00007f3700b85b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f36f8425036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f36f8425164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f36fd8ec426 in QEventDispatcherGlib::processEvents (this=0x7f36e00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f36fd8bbc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f36fd8bbed7 in QEventLoop::exec (this=0x7f36e6962dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f36fd7bafa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f36fd89b9ff in QInotifyFileSystemWatcherEngine::run (this=0xd06740) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f36fd7bdfcb in QThreadPrivate::start (arg=0xd06740) at thread/qthread_unix.cpp:298
#9  0x00007f36f8ce9e9a in start_thread (arg=0x7f36e6963700) at pthread_create.c:308
#10 0x00007f3700b914bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f36e5477700 (LWP 16007)):
#0  0x00007f3700b85b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f36f8425036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f36f8425164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f36fd8ec426 in QEventDispatcherGlib::processEvents (this=0x7f36d80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f36fd8bbc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f36fd8bbed7 in QEventLoop::exec (this=0x7f36e5476dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f36fd7bafa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f36fd89b9ff in QInotifyFileSystemWatcherEngine::run (this=0x1061670) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f36fd7bdfcb in QThreadPrivate::start (arg=0x1061670) at thread/qthread_unix.cpp:298
#9  0x00007f36f8ce9e9a in start_thread (arg=0x7f36e5477700) at pthread_create.c:308
#10 0x00007f3700b914bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f37012b2780 (LWP 16002)):
[KCrash Handler]
#6  0x00007f36fca0363f in QWidget::testAttribute_helper (this=0x1bc8250, attribute=Qt::WA_Hover) at kernel/qwidget.cpp:11034
#7  0x00007f36fc9c8168 in testAttribute (attribute=Qt::WA_Hover, this=0x1bc8250) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:1042
#8  QApplication::notify (this=<optimized out>, receiver=<optimized out>, e=0x7fff09e0f780) at kernel/qapplication.cpp:4124
#9  0x00007f36fe322456 in KApplication::notify (this=0x7fff09e13080, receiver=0x1bc8250, event=0x7fff09e0f780) at ../../kdeui/kernel/kapplication.cpp:311
#10 0x00007f36fd8bce9c in QCoreApplication::notifyInternal (this=0x7fff09e13080, receiver=0x1bc8250, event=0x7fff09e0f780) at kernel/qcoreapplication.cpp:876
#11 0x00007f36fc9c3862 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#12 QApplicationPrivate::sendMouseEvent (receiver=0x1bc8250, event=0x7fff09e0f780, alienWidget=0x0, nativeWidget=0x1bc8250, buttonDown=0x1772360, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3170
#13 0x00007f36fca42bf5 in QETWidget::translateMouseEvent (this=0x1bc8250, event=<optimized out>) at kernel/qapplication_x11.cpp:4617
#14 0x00007f36fca41bae in QApplication::x11ProcessEvent (this=0x7fff09e13080, event=0x7fff09e10050) at kernel/qapplication_x11.cpp:3732
#15 0x00007f36fca6b0d2 in x11EventSourceDispatch (s=0xabdc70, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#16 0x00007f36f8424d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f36f84250a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f36f8425164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f36fd8ec3bf in QEventDispatcherGlib::processEvents (this=0xa9db10, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#20 0x00007f36fca6ad5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#21 0x00007f36fd8bbc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#22 0x00007f36fd8bbed7 in QEventLoop::exec (this=0x1b55630, flags=...) at kernel/qeventloop.cpp:204
#23 0x00007f36fca51183 in QDragManager::drag (this=0x2c6ecf0, o=<optimized out>) at kernel/qdnd_x11.cpp:2017
#24 0x00007f36fc9d44f8 in QDrag::exec (this=0x1d11100, supportedActions=..., defaultDropAction=Qt::CopyAction) at kernel/qdrag.cpp:284
#25 0x00007f36ffeacd81 in KItemListController::startDragging() () from /usr/lib/libdolphinprivate.so.4
#26 0x00007f36ffeacf1e in KItemListController::mouseMoveEvent(QGraphicsSceneMouseEvent*, QTransform const&) () from /usr/lib/libdolphinprivate.so.4
#27 0x00007f36ffeac890 in KItemListController::processEvent(QEvent*, QTransform const&) () from /usr/lib/libdolphinprivate.so.4
#28 0x00007f36ffeb46ab in KItemListView::event(QEvent*) () from /usr/lib/libdolphinprivate.so.4
#29 0x00007f36fc9c2894 in notify_helper (e=0x7fff09e11890, receiver=0x172d430, this=0xad7440) at kernel/qapplication.cpp:4559
#30 QApplicationPrivate::notify_helper (this=0xad7440, receiver=0x172d430, e=0x7fff09e11890) at kernel/qapplication.cpp:4531
#31 0x00007f36fc9c7713 in QApplication::notify (this=0x7fff09e13080, receiver=0x172d430, e=0x7fff09e11890) at kernel/qapplication.cpp:4420
#32 0x00007f36fe322456 in KApplication::notify (this=0x7fff09e13080, receiver=0x172d430, event=0x7fff09e11890) at ../../kdeui/kernel/kapplication.cpp:311
#33 0x00007f36fd8bce9c in QCoreApplication::notifyInternal (this=0x7fff09e13080, receiver=0x172d430, event=0x7fff09e11890) at kernel/qcoreapplication.cpp:876
#34 0x00007f36fcfd003e in sendEvent (event=0x7fff09e11890, item=0x172d440, this=<optimized out>) at graphicsview/qgraphicsscene.cpp:1217
#35 QGraphicsScenePrivate::sendEvent (this=<optimized out>, item=0x172d440, event=0x7fff09e11890) at graphicsview/qgraphicsscene.cpp:1197
#36 0x00007f36fcfd0c4a in QGraphicsScenePrivate::sendMouseEvent (this=0x175bf60, mouseEvent=0x7fff09e11890) at graphicsview/qgraphicsscene.cpp:1295
#37 0x00007f36fcfd177c in QGraphicsScene::mouseMoveEvent (this=<optimized out>, mouseEvent=0x7fff09e11890) at graphicsview/qgraphicsscene.cpp:4102
#38 0x00007f36fcfdf7fb in QGraphicsScene::event (this=0x175bd40, event=0x7fff09e11890) at graphicsview/qgraphicsscene.cpp:3451
#39 0x00007f36fc9c2894 in notify_helper (e=0x7fff09e11890, receiver=0x175bd40, this=0xad7440) at kernel/qapplication.cpp:4559
#40 QApplicationPrivate::notify_helper (this=0xad7440, receiver=0x175bd40, e=0x7fff09e11890) at kernel/qapplication.cpp:4531
#41 0x00007f36fc9c7713 in QApplication::notify (this=0x7fff09e13080, receiver=0x175bd40, e=0x7fff09e11890) at kernel/qapplication.cpp:4420
#42 0x00007f36fe322456 in KApplication::notify (this=0x7fff09e13080, receiver=0x175bd40, event=0x7fff09e11890) at ../../kdeui/kernel/kapplication.cpp:311
#43 0x00007f36fd8bce9c in QCoreApplication::notifyInternal (this=0x7fff09e13080, receiver=0x175bd40, event=0x7fff09e11890) at kernel/qcoreapplication.cpp:876
#44 0x00007f36fcff9729 in QGraphicsViewPrivate::mouseMoveEventHandler (this=0x175c650, event=0x7fff09e123a0) at graphicsview/qgraphicsview.cpp:646
#45 0x00007f36fcff995e in QGraphicsView::mouseMoveEvent (this=0xc37110, event=0x7fff09e123a0) at graphicsview/qgraphicsview.cpp:3276
#46 0x00007f36fca13178 in QWidget::event (this=0xc37110, event=0x7fff09e123a0) at kernel/qwidget.cpp:8347
#47 0x00007f36fcdd33b6 in QFrame::event (this=0xc37110, e=0x7fff09e123a0) at widgets/qframe.cpp:557
#48 0x00007f36fcffdb2b in QGraphicsView::viewportEvent (this=0xc37110, event=0x7fff09e123a0) at graphicsview/qgraphicsview.cpp:2866
#49 0x00007f36fd8bd028 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x1772360, event=0x7fff09e123a0) at kernel/qcoreapplication.cpp:986
#50 0x00007f36fc9c285f in notify_helper (e=0x7fff09e123a0, receiver=0x1772360, this=0xad7440) at kernel/qapplication.cpp:4555
#51 QApplicationPrivate::notify_helper (this=0xad7440, receiver=0x1772360, e=0x7fff09e123a0) at kernel/qapplication.cpp:4531
#52 0x00007f36fc9c80bf in QApplication::notify (this=<optimized out>, receiver=0x1772360, e=0x7fff09e123a0) at kernel/qapplication.cpp:4102
#53 0x00007f36fe322456 in KApplication::notify (this=0x7fff09e13080, receiver=0x1772360, event=0x7fff09e123a0) at ../../kdeui/kernel/kapplication.cpp:311
#54 0x00007f36fd8bce9c in QCoreApplication::notifyInternal (this=0x7fff09e13080, receiver=0x1772360, event=0x7fff09e123a0) at kernel/qcoreapplication.cpp:876
#55 0x00007f36fc9c3862 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#56 QApplicationPrivate::sendMouseEvent (receiver=0x1772360, event=0x7fff09e123a0, alienWidget=0x1772360, nativeWidget=0x172bf60, buttonDown=0x1772360, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3170
#57 0x00007f36fca42bf5 in QETWidget::translateMouseEvent (this=0x172bf60, event=<optimized out>) at kernel/qapplication_x11.cpp:4617
#58 0x00007f36fca41bae in QApplication::x11ProcessEvent (this=0x7fff09e13080, event=0x7fff09e12c70) at kernel/qapplication_x11.cpp:3732
#59 0x00007f36fca6b0d2 in x11EventSourceDispatch (s=0xabdc70, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#60 0x00007f36f8424d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#61 0x00007f36f84250a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#62 0x00007f36f8425164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#63 0x00007f36fd8ec3bf in QEventDispatcherGlib::processEvents (this=0xa9db10, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#64 0x00007f36fca6ad5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#65 0x00007f36fd8bbc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#66 0x00007f36fd8bbed7 in QEventLoop::exec (this=0x7fff09e13010, flags=...) at kernel/qeventloop.cpp:204
#67 0x00007f36fd8c0f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#68 0x00007f3700ea9047 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_dolphin.so
#69 0x00007f3700ac076d in __libc_start_main (main=0x400640, argc=6, ubp_av=0x7fff09e135d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff09e135c8) at libc-start.c:226
#70 0x0000000000400671 in _start ()

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

Possible duplicates by query: bug 302956, bug 302828, bug 302516, bug 299877, bug 294918.

Reported using DrKonqi