Application: dolphin (16.04.1)

Qt Version: 5.6.0
Frameworks Version: 5.21.0
Operating System: Linux 4.5.4-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
I was in my home folder in dolphin and then I pressed F11. Dolphin crashed 
immediately.

The crash can be reproduced every time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Bus error
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fad1389e800 (LWP 20686))]

Thread 4 (Thread 0x7facfcae2700 (LWP 20689)):
#0  0x00007fad131ed68d in poll () from /usr/lib/libc.so.6
#1  0x00007fad05d20ae2 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007fad05d22757 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007facff053a79 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fad0d1071d8 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fad08989474 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fad131f669d in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7facf67e2700 (LWP 20690)):
#0  0x00007fad07e43029 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#1  0x00007fad07dfefbb in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fad07dff0ec in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007fad0d3336eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007fad0d2db46a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007fad0d1022f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007fad0d740a65 in ?? () from /usr/lib/libQt5DBus.so.5
#7  0x00007fad0d1071d8 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fad08989474 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fad131f669d in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7facec1de700 (LWP 20694)):
#0  0x00007fad131e96ed in read () from /usr/lib/libc.so.6
#1  0x00007fad07e41c80 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fad07dfeab4 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3  0x00007fad07dfef74 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007fad07dff0ec in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007fad0d3336eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007fad0d2db46a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007fad0d1022f3 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007fad0d1071d8 in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007fad08989474 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fad131f669d in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7fad1389e800 (LWP 20686)):
[KCrash Handler]
#5  0x00007fad0457ff0b in ?? () from /usr/lib/liblmdb.so
#6  0x00007fad045830f1 in ?? () from /usr/lib/liblmdb.so
#7  0x00007fad04583386 in ?? () from /usr/lib/liblmdb.so
#8  0x00007fad04583a45 in ?? () from /usr/lib/liblmdb.so
#9  0x00007fad045840a1 in mdb_get () from /usr/lib/liblmdb.so
#10 0x00007fad096b9aa8 in Baloo::DocumentDataDB::get(unsigned long long) () from /usr/lib/libKF5BalooEngine.so.5
#11 0x00007fad096dbc6e in Baloo::Transaction::documentData(unsigned long long) const () from /usr/lib/libKF5BalooEngine.so.5
#12 0x00007fad10f56e42 in Baloo::File::load() () from /usr/lib/libKF5Baloo.so.5
#13 0x00007fad1153b684 in ?? () from /usr/lib/libKF5BalooWidgets.so.5
#14 0x00007fad0d30b179 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#15 0x00007fad0e28f7bc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#16 0x00007fad0e29495f in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#17 0x00007fad0d2dd280 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#18 0x00007fad0d2df1fc in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#19 0x00007fad0d3332c3 in ?? () from /usr/lib/libQt5Core.so.5
#20 0x00007fad07dfedd7 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#21 0x00007fad07dff040 in ?? () from /usr/lib/libglib-2.0.so.0
#22 0x00007fad07dff0ec in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#23 0x00007fad0d3336cf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#24 0x00007fad0d2db46a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#25 0x00007fad0d2e3a0c in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#26 0x00007fad135112ba in kdemain () from /usr/lib/libkdeinit5_dolphin.so
#27 0x00007fad1312f741 in __libc_start_main () from /usr/lib/libc.so.6
#28 0x0000000000400719 in _start ()

Reported using DrKonqi