Application: gwenview (4.13.0)
KDE Platform Version: 4.13.0
Qt Version: 4.8.6
Operating System: Linux 3.13.0-24-generic i686
Distribution: Ubuntu 14.04 LTS

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

I was watching pics via ftp access on my NAS.
Just scrolling to the next pics, when experiencing crash

digiKAM 3.5

OS: KUBUNTU 14.04 LTS

The crash can be reproduced sometimes.

-- Backtrace:
Application: Gwenview (gwenview), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb3f24ac0 (LWP 8665))]

Thread 5 (Thread 0xb109fb40 (LWP 8666)):
#0  0xb76eb424 in __kernel_vsyscall ()
#1  0xb5c0c392 in __GI___clock_gettime (clock_id=1, tp=0xb109efb8) at ../sysdeps/unix/clock_gettime.c:115
#2  0xb702a8cc in do_gettime (frac=0xb109efb0, sec=0xb109efa8) at tools/qelapsedtimer_unix.cpp:127
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:144
#4  0xb71132a2 in updateCurrentTime (this=0xb07028e4) at kernel/qeventdispatcher_unix.cpp:354
#5  QTimerInfoList::timerWait (this=0xb07028e4, tm=...) at kernel/qeventdispatcher_unix.cpp:460
#6  0xb711182b in timerSourcePrepareHelper (src=<optimized out>, timeout=0xb109f0ac) at kernel/qeventdispatcher_glib.cpp:143
#7  0xb71118bd in timerSourcePrepare (source=0xb07028b0, timeout=0xb109f0ac) at kernel/qeventdispatcher_glib.cpp:176
#8  0xb4eac9b3 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb4ead2df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb4ead528 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#11 0xb711195f in QEventDispatcherGlib::processEvents (this=0xb0700468, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#12 0xb70e0823 in QEventLoop::processEvents (this=this@entry=0xb109f218, flags=...) at kernel/qeventloop.cpp:149
#13 0xb70e0b49 in QEventLoop::exec (this=this@entry=0xb109f218, flags=...) at kernel/qeventloop.cpp:204
#14 0xb6fcd23d in QThread::exec (this=this@entry=0xa262778) at thread/qthread.cpp:537
#15 0xb70c0c44 in QInotifyFileSystemWatcherEngine::run (this=0xa262778) at io/qfilesystemwatcher_inotify.cpp:265
#16 0xb6fcfb6f in QThreadPrivate::start (arg=0xa262778) at thread/qthread_unix.cpp:349
#17 0xb4f7ef70 in start_thread (arg=0xb109fb40) at pthread_create.c:312
#18 0xb5bfe70e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 4 (Thread 0xb05a7b40 (LWP 8667)):
#0  0xb76eb424 in __kernel_vsyscall ()
#1  0xb5c0c392 in __GI___clock_gettime (clock_id=1, tp=0xb05a6fb8) at ../sysdeps/unix/clock_gettime.c:115
#2  0xb702a8cc in do_gettime (frac=0xb05a6fb0, sec=0xb05a6fa8) at tools/qelapsedtimer_unix.cpp:127
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:144
#4  0xb71132a2 in updateCurrentTime (this=0xafc026e4) at kernel/qeventdispatcher_unix.cpp:354
#5  QTimerInfoList::timerWait (this=0xafc026e4, tm=...) at kernel/qeventdispatcher_unix.cpp:460
#6  0xb711182b in timerSourcePrepareHelper (src=<optimized out>, timeout=0xb05a70ac) at kernel/qeventdispatcher_glib.cpp:143
#7  0xb71118bd in timerSourcePrepare (source=0xafc026b0, timeout=0xb05a70ac) at kernel/qeventdispatcher_glib.cpp:176
#8  0xb4eac9b3 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb4ead2df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb4ead528 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#11 0xb711195f in QEventDispatcherGlib::processEvents (this=0xafc00468, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#12 0xb70e0823 in QEventLoop::processEvents (this=this@entry=0xb05a7218, flags=...) at kernel/qeventloop.cpp:149
#13 0xb70e0b49 in QEventLoop::exec (this=this@entry=0xb05a7218, flags=...) at kernel/qeventloop.cpp:204
#14 0xb6fcd23d in QThread::exec (this=this@entry=0xa314378) at thread/qthread.cpp:537
#15 0xb70c0c44 in QInotifyFileSystemWatcherEngine::run (this=0xa314378) at io/qfilesystemwatcher_inotify.cpp:265
#16 0xb6fcfb6f in QThreadPrivate::start (arg=0xa314378) at thread/qthread_unix.cpp:349
#17 0xb4f7ef70 in start_thread (arg=0xb05a7b40) at pthread_create.c:312
#18 0xb5bfe70e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 3 (Thread 0xad4a4b40 (LWP 8906)):
#0  0xb76eb424 in __kernel_vsyscall ()
#1  0xb4f82d4b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:187
#2  0xb5c0b8ec in __pthread_cond_wait (cond=0xa9bbc90, mutex=0xa9bbc78) at forward.c:149
#3  0xb6fd00f5 in wait (time=4294967295, this=0xa9bbc78) at thread/qwaitcondition_unix.cpp:86
#4  QWaitCondition::wait (this=this@entry=0xaad933c, mutex=0xaad9338, time=time@entry=4294967295) at thread/qwaitcondition_unix.cpp:158
#5  0xb75ce0e8 in Gwenview::ThumbnailGenerator::run (this=0xaad9300) at ../../lib/thumbnailprovider/thumbnailgenerator.cpp:256
#6  0xb6fcfb6f in QThreadPrivate::start (arg=0xaad9300) at thread/qthread_unix.cpp:349
#7  0xb4f7ef70 in start_thread (arg=0xad4a4b40) at pthread_create.c:312
#8  0xb5bfe70e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 2 (Thread 0xaf466b40 (LWP 9386)):
#0  0xb76eb424 in __kernel_vsyscall ()
#1  0xb4f8312d in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:245
#2  0xb5c0b944 in __pthread_cond_timedwait (cond=0xaafb0a8, mutex=0xaafb090, abstime=0xaf466218) at forward.c:162
#3  0xb6fd00d3 in wait (time=30000, this=0xaafb090) at thread/qwaitcondition_unix.cpp:84
#4  QWaitCondition::wait (this=this@entry=0xaa412b8, mutex=mutex@entry=0xa2cebf4, time=30000) at thread/qwaitcondition_unix.cpp:158
#5  0xb6fc3016 in QThreadPoolThread::run (this=0xaa412b0) at concurrent/qthreadpool.cpp:142
#6  0xb6fcfb6f in QThreadPrivate::start (arg=0xaa412b0) at thread/qthread_unix.cpp:349
#7  0xb4f7ef70 in start_thread (arg=0xaf466b40) at pthread_create.c:312
#8  0xb5bfe70e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 1 (Thread 0xb3f24ac0 (LWP 8665)):
[KCrash Handler]
#7  QDragManager::move (this=this@entry=0xaa2bb10, globalPos=...) at kernel/qdnd_x11.cpp:1698
#8  0xb6230fef in QDragManager::eventFilter (this=0xaa2bb10, o=0xa9884e0, e=0xbfa67e34) at kernel/qdnd_x11.cpp:1308
#9  0xb70e1f1b in QCoreApplicationPrivate::sendThroughApplicationEventFilters (this=this@entry=0xa0aaef8, receiver=receiver@entry=0xa9884e0, event=event@entry=0xbfa67e34) at kernel/qcoreapplication.cpp:1044
#10 0xb619677e in QApplicationPrivate::notify_helper (this=0xa0aaef8, receiver=receiver@entry=0xa9884e0, e=0xbfa67e34) at kernel/qapplication.cpp:4542
#11 0xb619eea0 in QApplication::notify (this=0xbfa690f0, receiver=receiver@entry=0xa9884e0, e=e@entry=0xbfa67e34) at kernel/qapplication.cpp:4110
#12 0xb6ce60a4 in KApplication::notify (this=0xbfa690f0, receiver=0xa9884e0, event=0xbfa67e34) at ../../kdeui/kernel/kapplication.cpp:311
#13 0xb70e1e4a in QCoreApplication::notifyInternal (this=0xbfa690f0, receiver=receiver@entry=0xa9884e0, event=event@entry=0xbfa67e34) at kernel/qcoreapplication.cpp:953
#14 0xb619cb53 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#15 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0xa9884e0, event=0xbfa67e34, alienWidget=0x0, nativeWidget=0xa9884e0, buttonDown=buttonDown@entry=0xb6b0dce4 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#16 0xb6220778 in QETWidget::translateMouseEvent (this=0xa9884e0, event=event@entry=0xbfa6805c) at kernel/qapplication_x11.cpp:4634
#17 0xb621fec5 in QApplication::x11ProcessEvent (this=0xbfa690f0, event=event@entry=0xbfa6805c) at kernel/qapplication_x11.cpp:3627
#18 0xb624b524 in x11EventSourceDispatch (s=0xa0a4300, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#19 0xb4ead1e3 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#20 0xb4ead468 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#21 0xb4ead528 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#22 0xb711193b in QEventDispatcherGlib::processEvents (this=this@entry=0xa075eb8, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#23 0xb624b5de in QGuiEventDispatcherGlib::processEvents (this=0xa075eb8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0xb70e0823 in QEventLoop::processEvents (this=this@entry=0xaa46c78, flags=...) at kernel/qeventloop.cpp:149
#25 0xb70e0b49 in QEventLoop::exec (this=this@entry=0xaa46c78, flags=...) at kernel/qeventloop.cpp:204
#26 0xb62313a6 in QDragManager::drag (this=0xaa2bb10, o=o@entry=0xa6f51f0) at kernel/qdnd_x11.cpp:2032
#27 0xb61a9574 in QDrag::exec (this=this@entry=0xa6f51f0, supportedActions=..., defaultDropAction=defaultDropAction@entry=Qt::CopyAction) at kernel/qdrag.cpp:284
#28 0xb75dee58 in Gwenview::ThumbnailView::startDrag (this=this@entry=0xa1b49e0, supportedActions=...) at ../../lib/thumbnailview/thumbnailview.cpp:699
#29 0xb672921a in QAbstractItemView::mouseMoveEvent (this=this@entry=0xa1b49e0, event=event@entry=0xbfa68b94) at itemviews/qabstractitemview.cpp:1725
#30 0xb674d2ca in QListView::mouseMoveEvent (this=0xa1b49e0, e=0xbfa68b94) at itemviews/qlistview.cpp:781
#31 0xb61f053c in QWidget::event (this=this@entry=0xa1b49e0, event=event@entry=0xbfa68b94) at kernel/qwidget.cpp:8361
#32 0xb65f678c in QFrame::event (this=this@entry=0xa1b49e0, e=e@entry=0xbfa68b94) at widgets/qframe.cpp:557
#33 0xb6684e48 in QAbstractScrollArea::viewportEvent (this=this@entry=0xa1b49e0, e=e@entry=0xbfa68b94) at widgets/qabstractscrollarea.cpp:1043
#34 0xb6729ddc in QAbstractItemView::viewportEvent (this=0xa1b49e0, event=0xbfa68b94) at itemviews/qabstractitemview.cpp:1644
#35 0xb66850c6 in viewportEvent (event=0xbfa68b94, this=<optimized out>) at widgets/qabstractscrollarea_p.h:100
#36 QAbstractScrollAreaFilter::eventFilter (this=0xa1b4710, o=0xa1b2dd0, e=0xbfa68b94) at widgets/qabstractscrollarea_p.h:116
#37 0xb70e1fbe in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0xa0aaef8, receiver=receiver@entry=0xa1b2dd0, event=event@entry=0xbfa68b94) at kernel/qcoreapplication.cpp:1063
#38 0xb61967d1 in QApplicationPrivate::notify_helper (this=0xa0aaef8, receiver=receiver@entry=0xa1b2dd0, e=0xbfa68b94) at kernel/qapplication.cpp:4563
#39 0xb619eea0 in QApplication::notify (this=0xbfa690f0, receiver=receiver@entry=0xa1b2dd0, e=e@entry=0xbfa68b94) at kernel/qapplication.cpp:4110
#40 0xb6ce60a4 in KApplication::notify (this=0xbfa690f0, receiver=0xa1b2dd0, event=0xbfa68b94) at ../../kdeui/kernel/kapplication.cpp:311
#41 0xb70e1e4a in QCoreApplication::notifyInternal (this=0xbfa690f0, receiver=receiver@entry=0xa1b2dd0, event=event@entry=0xbfa68b94) at kernel/qcoreapplication.cpp:953
#42 0xb619cb53 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#43 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0xa1b2dd0, event=0xbfa68b94, alienWidget=0xa973848, nativeWidget=0xaaf49a0, buttonDown=buttonDown@entry=0xb6b0dce4 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#44 0xb6220778 in QETWidget::translateMouseEvent (this=0xaaf49a0, event=event@entry=0xbfa68dbc) at kernel/qapplication_x11.cpp:4634
#45 0xb621fec5 in QApplication::x11ProcessEvent (this=0xbfa690f0, event=event@entry=0xbfa68dbc) at kernel/qapplication_x11.cpp:3627
#46 0xb624b524 in x11EventSourceDispatch (s=0xa0a4300, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#47 0xb4ead1e3 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#48 0xb4ead468 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#49 0xb4ead528 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#50 0xb711193b in QEventDispatcherGlib::processEvents (this=this@entry=0xa075eb8, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#51 0xb624b5de in QGuiEventDispatcherGlib::processEvents (this=0xa075eb8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#52 0xb70e0823 in QEventLoop::processEvents (this=this@entry=0xbfa69078, flags=...) at kernel/qeventloop.cpp:149
#53 0xb70e0b49 in QEventLoop::exec (this=this@entry=0xbfa69078, flags=...) at kernel/qeventloop.cpp:204
#54 0xb70e68fe in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#55 0xb6194a24 in QApplication::exec () at kernel/qapplication.cpp:3828
#56 0x08066d14 in main (argc=6, argv=0xbfa691d4) at ../../app/main.cpp:139

Possible duplicates by query: bug 329214.

Reported using DrKonqi