Bug 305995

Application: gwenview (2.9.0)
KDE Platform Version: 4.9.00 (Compiled from sources)
Qt Version: 4.8.2
Operating System: Linux 3.5.3-gentoo x86_64
Distribution: "Gentoo Base System release 2.1"

-- Information about the crash:
I got this crash in 2 cases :
- Dragging some photos to Pisaca (web version with Firefox)
- Dragging a  photo to a contact in kopete to send it to him (kopete crashed too)

The crash can be reproduced some of the time.

-- Backtrace:
Application: Gwenview (gwenview), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f9b326377c0 (LWP 21939))]

Thread 3 (Thread 0x7f9b2e005700 (LWP 21940)):
#0  0x00007f9b3e964cd3 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f9b3b30fd16 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f9b3b30fe44 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f9b40df4e86 in QEventDispatcherGlib::processEvents (this=0x7f9b280008f0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f9b40dc4a22 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f9b40dc4c77 in QEventLoop::exec (this=0x7f9b2e004cd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f9b40cc4c07 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f9b40da483f in QInotifyFileSystemWatcherEngine::run (this=0x1cdef60) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f9b40cc7c2b in QThreadPrivate::start (arg=0x1cdef60) at thread/qthread_unix.cpp:307
#9  0x00007f9b381f3734 in ?? () from /usr/lib64/libGL.so.1
#10 0x00007f9b3d0f3fb6 in start_thread (arg=0x7f9b2e005700) at pthread_create.c:305
#11 0x00007f9b3e96d96d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 2 (Thread 0x7f9b2cd3f700 (LWP 22058)):
#0  pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:215
#1  0x00007f9b40cc809f in wait (time=30000, this=0x2197950) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x25acd58, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f9b40cbb4ef in QThreadPoolThread::run (this=0x2545b40) at concurrent/qthreadpool.cpp:141
#4  0x00007f9b40cc7c2b in QThreadPrivate::start (arg=0x2545b40) at thread/qthread_unix.cpp:307
#5  0x00007f9b381f3734 in ?? () from /usr/lib64/libGL.so.1
#6  0x00007f9b3d0f3fb6 in start_thread (arg=0x7f9b2cd3f700) at pthread_create.c:305
#7  0x00007f9b3e96d96d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f9b326377c0 (LWP 21939)):
[KCrash Handler]
#6  0x00007f9b3f62c49f in QWidget::testAttribute_helper (this=0x27d9d70, attribute=Qt::WA_Hover) at kernel/qwidget.cpp:11043
#7  0x00007f9b3f5f10fc in testAttribute (attribute=Qt::WA_Hover, this=0x27d9d70) at ../../src/gui/kernel/qwidget.h:1042
#8  QApplication::notify (this=<optimized out>, receiver=<optimized out>, e=0x7fffbe927510) at kernel/qapplication.cpp:4116
#9  0x00007f9b40315076 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#10 0x00007f9b40dc5eec in QCoreApplication::notifyInternal (this=0x7fffbe929d40, receiver=0x27d9d70, event=0x7fffbe927510) at kernel/qcoreapplication.cpp:915
#11 0x00007f9b3f5ec982 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#12 QApplicationPrivate::sendMouseEvent (receiver=0x27d9d70, event=0x7fffbe927510, alienWidget=0x0, nativeWidget=0x27d9d70, buttonDown=0x1ca3660, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3162
#13 0x00007f9b3f6681d8 in QETWidget::translateMouseEvent (this=0x27d9d70, event=<optimized out>) at kernel/qapplication_x11.cpp:4502
#14 0x00007f9b3f666fca in QApplication::x11ProcessEvent (this=0x7fffbe929d40, event=0x7fffbe927c30) at kernel/qapplication_x11.cpp:3625
#15 0x00007f9b3f68e5f2 in x11EventSourceDispatch (s=0x1adb170, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#16 0x00007f9b3b30fa33 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#17 0x00007f9b3b30fd80 in ?? () from /usr/lib64/libglib-2.0.so.0
#18 0x00007f9b3b30fe44 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#19 0x00007f9b40df4e1f in QEventDispatcherGlib::processEvents (this=0x1a8ad40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#20 0x00007f9b3f68e28e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#21 0x00007f9b40dc4a22 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#22 0x00007f9b40dc4c77 in QEventLoop::exec (this=0x2578ab0, flags=...) at kernel/qeventloop.cpp:204
#23 0x00007f9b3f6763ab in QDragManager::drag (this=0x26572d0, o=<optimized out>) at kernel/qdnd_x11.cpp:2016
#24 0x00007f9b3f5fd388 in QDrag::exec (this=0x248b230, supportedActions=..., defaultDropAction=Qt::CopyAction) at kernel/qdrag.cpp:284
#25 0x00007f9b418f463b in Gwenview::ThumbnailView::startDrag(QFlags<Qt::DropAction>) () from /usr/lib64/libgwenviewlib.so.4
#26 0x00007f9b3faf4f9e in QAbstractItemView::mouseMoveEvent (this=0x1c8bf00, event=<optimized out>) at itemviews/qabstractitemview.cpp:1725
#27 0x00007f9b3fb0c1e1 in QListView::mouseMoveEvent (this=0x1c8bf00, e=0x7fffbe9291f0) at itemviews/qlistview.cpp:781
#28 0x00007f9b3f63bfa8 in QWidget::event (this=0x1c8bf00, event=0x7fffbe9291f0) at kernel/qwidget.cpp:8356
#29 0x00007f9b3f9d75d6 in QFrame::event (this=0x1c8bf00, e=0x7fffbe9291f0) at widgets/qframe.cpp:557
#30 0x00007f9b3faeb8cb in QAbstractItemView::viewportEvent (this=0x1c8bf00, event=0x7fffbe9291f0) at itemviews/qabstractitemview.cpp:1644
#31 0x00007f9b40dc6078 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x1ca3660, event=0x7fffbe9291f0) at kernel/qcoreapplication.cpp:1025
#32 0x00007f9b3f5eb97f in notify_helper (e=0x7fffbe9291f0, receiver=0x1ca3660, this=0x1ada120) at kernel/qapplication.cpp:4547
#33 QApplicationPrivate::notify_helper (this=0x1ada120, receiver=0x1ca3660, e=0x7fffbe9291f0) at kernel/qapplication.cpp:4523
#34 0x00007f9b3f5f1053 in QApplication::notify (this=<optimized out>, receiver=0x1ca3660, e=0x7fffbe9291f0) at kernel/qapplication.cpp:4094
#35 0x00007f9b40315076 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#36 0x00007f9b40dc5eec in QCoreApplication::notifyInternal (this=0x7fffbe929d40, receiver=0x1ca3660, event=0x7fffbe9291f0) at kernel/qcoreapplication.cpp:915
#37 0x00007f9b3f5ec982 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#38 QApplicationPrivate::sendMouseEvent (receiver=0x1ca3660, event=0x7fffbe9291f0, alienWidget=0x1ca3660, nativeWidget=0x1c9d7a0, buttonDown=0x1ca3660, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3162
#39 0x00007f9b3f6681d8 in QETWidget::translateMouseEvent (this=0x1c9d7a0, event=<optimized out>) at kernel/qapplication_x11.cpp:4502
#40 0x00007f9b3f666fca in QApplication::x11ProcessEvent (this=0x7fffbe929d40, event=0x7fffbe929910) at kernel/qapplication_x11.cpp:3625
#41 0x00007f9b3f68e5f2 in x11EventSourceDispatch (s=0x1adb170, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#42 0x00007f9b3b30fa33 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#43 0x00007f9b3b30fd80 in ?? () from /usr/lib64/libglib-2.0.so.0
#44 0x00007f9b3b30fe44 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#45 0x00007f9b40df4e1f in QEventDispatcherGlib::processEvents (this=0x1a8ad40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#46 0x00007f9b3f68e28e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#47 0x00007f9b40dc4a22 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#48 0x00007f9b40dc4c77 in QEventLoop::exec (this=0x7fffbe929ca0, flags=...) at kernel/qeventloop.cpp:204
#49 0x00007f9b40dc9a95 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#50 0x0000000000427255 in ?? ()
#51 0x00007f9b3e8a93ed in __libc_start_main (main=0x426cd0, argc=1, ubp_av=0x7fffbe92a068, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffbe92a058) at libc-start.c:226
#52 0x0000000000427501 in _start ()

Possible duplicates by query: bug 252189.

Reported using DrKonqi