Application: baloo_file_extractor (5.15.0)
 (Compiled from sources)
Qt Version: 5.5.0
Operating System: Linux 4.2.3-200.fc22.x86_64 x86_64
Distribution: "Fedora release 22 (Twenty Two)"

-- Information about the crash:
Crashed while indexing

The crash can be reproduced sometimes.

-- Backtrace:
Application: Baloo File Extractor (baloo_file_extractor), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0f317c0780 (LWP 11591))]

Thread 2 (Thread 0x7f0f1b13b700 (LWP 11592)):
#0  0x00007f0f2dd072fd in poll () at /lib64/libc.so.6
#1  0x00007f0f28773182 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f0f28774c77 in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f0f1eb0b999 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007f0f2e91354e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f0f2ce1a555 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f0f2dd12b9d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f0f317c0780 (LWP 11591)):
[KCrash Handler]
#5  0x00007f0f2dd58ad8 in __memcpy_avx_unaligned () at /lib64/libc.so.6
#6  0x00007f0f2e917260 in QByteArray::QByteArray(char const*, int) () at /lib64/libQt5Core.so.5
#7  0x00007f0f30a54e01 in Baloo::IdFilenameDB::get(unsigned long long) () at /lib64/libKF5BalooEngine.so.5
#8  0x00007f0f30a4f80d in Baloo::DocumentUrlDB::get(unsigned long long) const () at /lib64/libKF5BalooEngine.so.5
#9  0x00007f0f30a64991 in Baloo::Transaction::documentUrl(unsigned long long) const () at /lib64/libKF5BalooEngine.so.5
#10 0x000000000040c3e8 in Baloo::App::processNextFile() ()
#11 0x00007f0f2eb2f778 in QSingleShotTimer::timerEvent(QTimerEvent*) () at /lib64/libQt5Core.so.5
#12 0x00007f0f2eb23fd3 in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#13 0x00007f0f2f7dd4ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#14 0x00007f0f2f7e2976 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#15 0x00007f0f2eaf461b in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#16 0x00007f0f2eb49bad in QTimerInfoList::activateTimers() () at /lib64/libQt5Core.so.5
#17 0x00007f0f2eb4a0e9 in idleTimerSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#18 0x00007f0f2c687a8a in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#19 0x00007f0f2c687e20 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#20 0x00007f0f2c687ecc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#21 0x00007f0f2eb4ad8f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#22 0x00007f0f2eaf1daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#23 0x00007f0f2eaf9e6c in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#24 0x000000000040af35 in main ()

Reported using DrKonqi