Bug 342400

Application: dolphin (4.14.3)
KDE Platform Version: 4.14.3
Qt Version: 4.8.6
Operating System: Linux 3.17.7-300.fc21.x86_64 x86_64
Distribution: "Fedora release 21 (Twenty One)"

-- Information about the crash:
I have just experienced a Dolphin crash after the mount of my external HD. 

- What I was doing when the application crashed:
1. Restored from a system suspend (don't know if it is related or not)
2. A Filelight window is open (maybe it shares some resource with Dolphin)
3. Opened a Dolphin window showing my home directory (opened from ALT+F2 menu)
4. Connected my external HD and selected "Open with File Manager" element in KDE's popup menu from notification area
5. Experience the crash

Additional notes:
- seems that the Dolphin window showing my HD contents was actually opened in background.
- I have tried a couple of times but I was not able to reproduce the crash. Maybe I have to try with again after a system reboot or a sleep -> wakepu cycle.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f83e065a900 (LWP 8551))]

Thread 3 (Thread 0x7f83d3d24700 (LWP 8552)):
#0  0x000000341c2f51dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000341ea49e24 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f83cc003410, timeout=-1, context=0x7f83cc0009a0) at gmain.c:4076
#2  0x000000341ea49e24 in g_main_context_iterate (context=context@entry=0x7f83cc0009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x000000341ea49f3c in g_main_context_iteration (context=0x7f83cc0009a0, may_block=1) at gmain.c:3842
#4  0x00000034289b4a3e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f83cc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#5  0x0000003428984261 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f83d3d23c80, flags=...) at kernel/qeventloop.cpp:149
#6  0x00000034289845c5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f83d3d23c80, flags=...) at kernel/qeventloop.cpp:204
#7  0x0000003428879b59 in QThread::exec() (this=this@entry=0x1dc4aa0) at thread/qthread.cpp:538
#8  0x0000003428964cc3 in QInotifyFileSystemWatcherEngine::run() (this=0x1dc4aa0) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x000000342887c3bf in QThreadPrivate::start(void*) (arg=0x1dc4aa0) at thread/qthread_unix.cpp:349
#10 0x000000341c60752a in start_thread (arg=0x7f83d3d24700) at pthread_create.c:310
#11 0x000000341c30077d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f83d3479700 (LWP 8553)):
#0  0x00000034289b4397 in timerSourceCheck(GSource*) (source=0x7f83c4002e80) at kernel/qeventdispatcher_glib.cpp:182
#1  0x000000341ea49841 in g_main_context_check (context=context@entry=0x7f83c40009a0, max_priority=2147483647, fds=fds@entry=0x7f83c40013e0, n_fds=n_fds@entry=1) at gmain.c:3622
#2  0x000000341ea49dc3 in g_main_context_iterate (context=context@entry=0x7f83c40009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#3  0x000000341ea49f3c in g_main_context_iteration (context=0x7f83c40009a0, may_block=1) at gmain.c:3842
#4  0x00000034289b4a3e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f83c40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#5  0x0000003428984261 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f83d3478cd0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00000034289845c5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f83d3478cd0, flags=...) at kernel/qeventloop.cpp:204
#7  0x0000003428879b59 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:538
#8  0x000000342887c3bf in QThreadPrivate::start(void*) (arg=0x1cb4a70) at thread/qthread_unix.cpp:349
#9  0x000000341c60752a in start_thread (arg=0x7f83d3479700) at pthread_create.c:310
#10 0x000000341c30077d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f83e065a900 (LWP 8551)):
[KCrash Handler]
#6  0x0000003428e141eb in QDomNode::isElement() const (this=this@entry=0x7fff7f476200) at dom/qdom.cpp:2823
#7  0x0000003428e17aa8 in QDomNode::firstChildElement(QString const&) const (this=this@entry=0x7fff7f476380, tagName=...) at dom/qdom.cpp:2951
#8  0x00000034343d1477 in KBookmarkGroup::findToolbar() const (this=this@entry=0x7fff7f476380) at /usr/src/debug/kdelibs-4.14.3/kio/bookmarks/kbookmark.cc:251
#9  0x00000034343d90f1 in KBookmarkManager::saveAs(QString const&, bool) const (this=this@entry=0x1d0cdf0, filename=..., toolbarCache=toolbarCache@entry=true) at /usr/src/debug/kdelibs-4.14.3/kio/bookmarks/kbookmarkmanager.cc:415
#10 0x00000034343d93c1 in KBookmarkManager::save(bool) const (this=this@entry=0x1d0cdf0, toolbarCache=toolbarCache@entry=true) at /usr/src/debug/kdelibs-4.14.3/kio/bookmarks/kbookmarkmanager.cc:398
#11 0x00000034343dce88 in KBookmarkManager::emitChanged(KBookmarkGroup const&) (this=0x1d0cdf0, group=...) at /usr/src/debug/kdelibs-4.14.3/kio/bookmarks/kbookmarkmanager.cc:553
#12 0x00000033c1a5e011 in PlacesItemModel::saveBookmarks() () at /lib64/libkdeinit4_dolphin.so
#13 0x00000033c1a60e15 in PlacesItemModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) [clone .part.68] () at /lib64/libkdeinit4_dolphin.so
#14 0x000000342899a25c in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=0x2056d50, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3567
#15 0x000000342899e823 in QObject::event(QEvent*) (this=0x2056d50, e=<optimized out>) at kernel/qobject.cpp:1253
#16 0x000000342e5c7efc in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x1b1e650, receiver=receiver@entry=0x2056d50, e=e@entry=0x7fff7f4768d0) at kernel/qapplication.cpp:4565
#17 0x000000342e5ce958 in QApplication::notify(QObject*, QEvent*) (this=this@entry=0x7fff7f476c70, receiver=receiver@entry=0x2056d50, e=e@entry=0x7fff7f4768d0) at kernel/qapplication.cpp:4351
#18 0x000000342fc4e9ea in KApplication::notify(QObject*, QEvent*) (this=0x7fff7f476c70, receiver=0x2056d50, event=0x7fff7f4768d0) at /usr/src/debug/kdelibs-4.14.3/kdeui/kernel/kapplication.cpp:311
#19 0x000000342898570d in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7fff7f476c70, receiver=0x2056d50, event=event@entry=0x7fff7f4768d0) at kernel/qcoreapplication.cpp:953
#20 0x00000034289b706b in QTimerInfoList::activateTimers() (event=0x7fff7f4768d0, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#21 0x00000034289b706b in QTimerInfoList::activateTimers() (this=0x1b18680) at kernel/qeventdispatcher_unix.cpp:621
#22 0x00000034289b4089 in idleTimerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:193
#23 0x00000034289b4089 in idleTimerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:240
#24 0x000000341ea49aeb in g_main_context_dispatch (context=0x1b1d290) at gmain.c:3111
#25 0x000000341ea49aeb in g_main_context_dispatch (context=context@entry=0x1b1d290) at gmain.c:3710
#26 0x000000341ea49e88 in g_main_context_iterate (context=context@entry=0x1b1d290, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3781
#27 0x000000341ea49f3c in g_main_context_iteration (context=0x1b1d290, may_block=1) at gmain.c:3842
#28 0x00000034289b4a1e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1ae0530, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#29 0x000000342e66b136 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#30 0x0000003428984261 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fff7f476b50, flags=...) at kernel/qeventloop.cpp:149
#31 0x00000034289845c5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fff7f476b50, flags=...) at kernel/qeventloop.cpp:204
#32 0x0000003428989ca9 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1225
#33 0x00000033c1a514ce in kdemain () at /lib64/libkdeinit4_dolphin.so
#34 0x000000341c21ffe0 in __libc_start_main (main=0x4008e0 <main>, argc=5, argv=0x7fff7f476db8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff7f476da8) at libc-start.c:289
#35 0x000000000040090e in _start ()

Possible duplicates by query: bug 337888, bug 337030, bug 335807, bug 332861.

Reported using DrKonqi