Bug 280784

Application: dolphin (1.7)
KDE Platform Version: 4.7.00 (4.7.0)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-11-generic x86_64
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:
Dragging a JPEG file from my home folder to a message composition window of Mozilla Thunderbird causes Dolphin to crash. The crash happened as soon as I dragged the file over the task manager widget in my custom toolbar (set to auto-hide). This crash does not appear in any case, sometimes everything works as it should.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f699db74780 (LWP 2236))]

Thread 3 (Thread 0x7f698b6e9700 (LWP 2237)):
#0  0xffffffffff60014c in ?? ()
#1  0x00007f698b6e8ae0 in ?? ()
#2  0x00007fff7517d7b2 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 2 (Thread 0x7f6982fbf700 (LWP 2295)):
#0  0x00007f699d459f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f6995c27104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6995c27639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6999910446 in QEventDispatcherGlib::processEvents (this=0x17b70b0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f69998e4882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f69998e4abc in QEventLoop::exec (this=0x7f6982fbedd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f69997fb924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007f69998c6c2f in QInotifyFileSystemWatcherEngine::run (this=0x17b6aa0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f69997fe175 in QThreadPrivate::start (arg=0x17b6aa0) at thread/qthread_unix.cpp:320
#9  0x00007f69960f2d8c in start_thread (arg=0x7f6982fbf700) at pthread_create.c:304
#10 0x00007f699d46704d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f699db74780 (LWP 2236)):
[KCrash Handler]
#6  0x00007f699a2e1d2f in QWidget::testAttribute_helper (this=0x17bfb80, attribute=Qt::WA_Hover) at kernel/qwidget.cpp:10870
#7  0x00007f699a2a4e6d in testAttribute (this=<value optimized out>, receiver=0x17bfb80, e=0x7fff75006d30) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:1031
#8  QApplication::notify (this=<value optimized out>, receiver=0x17bfb80, e=0x7fff75006d30) at kernel/qapplication.cpp:4045
#9  0x00007f699afaf796 in KApplication::notify (this=0x7fff75009720, receiver=0x17bfb80, event=0x7fff75006d30) at ../../kdeui/kernel/kapplication.cpp:311
#10 0x00007f69998e549c in QCoreApplication::notifyInternal (this=0x7fff75009720, receiver=0x17bfb80, event=0x7fff75006d30) at kernel/qcoreapplication.cpp:731
#11 0x00007f699a2a0a1d in sendEvent (receiver=0x17bfb80, event=0x7fff75006d30, alienWidget=0x0, nativeWidget=0x17bfb80, buttonDown=0x7f699ad83218, lastMouseReceiver=..., spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#12 QApplicationPrivate::sendMouseEvent (receiver=0x17bfb80, event=0x7fff75006d30, alienWidget=0x0, nativeWidget=0x17bfb80, buttonDown=0x7f699ad83218, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3122
#13 0x00007f699a322190 in QETWidget::translateMouseEvent (this=0x17bfb80, event=<value optimized out>) at kernel/qapplication_x11.cpp:4558
#14 0x00007f699a320ab7 in QApplication::x11ProcessEvent (this=0x7fff75009720, event=0x7fff75007680) at kernel/qapplication_x11.cpp:3680
#15 0x00007f699a349842 in x11EventSourceDispatch (s=0x100c570, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#16 0x00007f6995c26bcd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f6995c273a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f6995c27639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f69999103ef in QEventDispatcherGlib::processEvents (this=0x1007f40, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#20 0x00007f699a3494de in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#21 0x00007f69998e4882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#22 0x00007f69998e4abc in QEventLoop::exec (this=0x198b170, flags=...) at kernel/qeventloop.cpp:201
#23 0x00007f699a32ffd4 in QDragManager::drag (this=0x188b090, o=<value optimized out>) at kernel/qdnd_x11.cpp:1981
#24 0x00007f699a2b1898 in QDrag::exec (this=0x19abfc0, supportedActions=..., defaultDropAction=Qt::IgnoreAction) at kernel/qdrag.cpp:284
#25 0x00007f699c7ee18e in DragAndDropHelper::startDrag(QAbstractItemView*, QFlags<Qt::DropAction>, DolphinViewController*) () from /usr/lib/libdolphinprivate.so.4
#26 0x00007f699c7d7f4e in DolphinDetailsView::startDrag(QFlags<Qt::DropAction>) () from /usr/lib/libdolphinprivate.so.4
#27 0x00007f699a7bcdc3 in QAbstractItemView::mouseMoveEvent (this=0x14873d0, event=<value optimized out>) at itemviews/qabstractitemview.cpp:1709
#28 0x00007f699c7e80c5 in DolphinTreeView::mouseMoveEvent(QMouseEvent*) () from /usr/lib/libdolphinprivate.so.4
#29 0x00007f699a2f0cfc in QWidget::event (this=0x14873d0, event=0x7fff75008a60) at kernel/qwidget.cpp:8244
#30 0x00007f699a6a3156 in QFrame::event (this=0x14873d0, e=0x7fff75008a60) at widgets/qframe.cpp:557
#31 0x00007f699a7b446b in QAbstractItemView::viewportEvent (this=0x14873d0, event=0x7fff75008a60) at itemviews/qabstractitemview.cpp:1628
#32 0x00007f699a7f8675 in QTreeView::viewportEvent (this=0x14873d0, event=0x7fff75008a60) at itemviews/qtreeview.cpp:1256
#33 0x00007f69998e5627 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x14869a0, event=0x7fff75008a60) at kernel/qcoreapplication.cpp:846
#34 0x00007f699a29f9c1 in QApplicationPrivate::notify_helper (this=0x100dba0, receiver=0x14869a0, e=0x7fff75008a60) at kernel/qapplication.cpp:4458
#35 0x00007f699a2a4dc3 in QApplication::notify (this=<value optimized out>, receiver=0x14869a0, e=0x7fff75008a60) at kernel/qapplication.cpp:4023
#36 0x00007f699afaf796 in KApplication::notify (this=0x7fff75009720, receiver=0x14869a0, event=0x7fff75008a60) at ../../kdeui/kernel/kapplication.cpp:311
#37 0x00007f69998e549c in QCoreApplication::notifyInternal (this=0x7fff75009720, receiver=0x14869a0, event=0x7fff75008a60) at kernel/qcoreapplication.cpp:731
#38 0x00007f699a2a0a1d in sendEvent (receiver=0x14869a0, event=0x7fff75008a60, alienWidget=0x14869a0, nativeWidget=0x147f790, buttonDown=0x7f699ad83218, lastMouseReceiver=..., spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#39 QApplicationPrivate::sendMouseEvent (receiver=0x14869a0, event=0x7fff75008a60, alienWidget=0x14869a0, nativeWidget=0x147f790, buttonDown=0x7f699ad83218, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3122
#40 0x00007f699a322190 in QETWidget::translateMouseEvent (this=0x147f790, event=<value optimized out>) at kernel/qapplication_x11.cpp:4558
#41 0x00007f699a320ab7 in QApplication::x11ProcessEvent (this=0x7fff75009720, event=0x7fff750093b0) at kernel/qapplication_x11.cpp:3680
#42 0x00007f699a349842 in x11EventSourceDispatch (s=0x100c570, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#43 0x00007f6995c26bcd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f6995c273a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f6995c27639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f69999103ef in QEventDispatcherGlib::processEvents (this=0x1007f40, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#47 0x00007f699a3494de in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#48 0x00007f69998e4882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#49 0x00007f69998e4abc in QEventLoop::exec (this=0x7fff750096b0, flags=...) at kernel/qeventloop.cpp:201
#50 0x00007f69998e8ecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#51 0x00007f699d75f48b in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_dolphin.so
#52 0x00007f699d39feff in __libc_start_main (main=0x400740 <_start+256>, argc=5, ubp_av=0x7fff75009c08, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff75009bf8) at libc-start.c:226
#53 0x0000000000400669 in _start ()

This bug may be a duplicate of or related to bug 280468, bug 273948, bug 259354.

Possible duplicates by query: bug 280468, bug 280012, bug 280009, bug 275125, bug 274994.

Reported using DrKonqi