Application: nepomukbaloomigrator (1.0)
KDE Platform Version: 4.13.3
Qt Version: 4.8.6
Operating System: Linux 3.15.8-200.fc20.x86_64 x86_64
Distribution: "Fedora release 20 (Heisenbug)"

-- Information about the crash:
- What I was doing when the application crashed:
manually migrating data from nepomuk due to a failed automatic migration. (no data was migrated at all)

- Unusual behavior I noticed:
as stated above, the first automatic migration did not migrate any data.

-- Backtrace:
Application: NepomukBalooMigrator (nepomukbaloomigrator), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2322b428c0 (LWP 24202))]

Thread 2 (Thread 0x7f2317a80700 (LWP 24207)):
#0  0x00000031fc2ea9dd in poll () from /lib64/libc.so.6
#1  0x00000031ffa495b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00000031ffa496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x0000003010bb543e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#4  0x0000003010b8538f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#5  0x0000003010b856dd in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#6  0x0000003010a79e5f in QThread::exec() () from /lib64/libQtCore.so.4
#7  0x0000003010b65de3 in QInotifyFileSystemWatcherEngine::run() () from /lib64/libQtCore.so.4
#8  0x0000003010a7c69f in QThreadPrivate::start(void*) () from /lib64/libQtCore.so.4
#9  0x00000031fce07f33 in start_thread () from /lib64/libpthread.so.0
#10 0x00000031fc2f4ded in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f2322b428c0 (LWP 24202)):
[KCrash Handler]
#5  0x00000038bc4494c8 in Xapian::Database::get_document(unsigned int) const () from /lib64/libxapian.so.22
#6  0x000000302380c7d4 in Baloo::XapianDatabase::document(unsigned int) () from /lib64/libbalooxapian.so.4
#7  0x0000003023c0e090 in Baloo::FileModifyJob::doStart() () from /lib64/libbaloofiles.so.4
#8  0x0000003010b9f90e in QObject::event(QEvent*) () from /lib64/libQtCore.so.4
#9  0x0000003012dcae5c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#10 0x0000003012dd17b5 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#11 0x0000003014a4a59a in KApplication::notify(QObject*, QEvent*) () from /lib64/libkdeui.so.5
#12 0x0000003010b868fd in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#13 0x0000003010b89ae5 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQtCore.so.4
#14 0x0000003010bb5c9e in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQtCore.so.4
#15 0x00000031ffa492a6 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#16 0x00000031ffa49628 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#17 0x00000031ffa496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#18 0x0000003010bb541e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#19 0x0000003012e6cc46 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtGui.so.4
#20 0x0000003010b8538f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#21 0x0000003010b856dd in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#22 0x0000003013b3abb3 in KJob::exec() () from /lib64/libkdecore.so.5
#23 0x0000000000404c46 in Nepomuk2::SysTray::startMigration() ()
#24 0x0000003010b9f90e in QObject::event(QEvent*) () from /lib64/libQtCore.so.4
#25 0x0000003012dcae5c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#26 0x0000003012dd17b5 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#27 0x0000003014a4a59a in KApplication::notify(QObject*, QEvent*) () from /lib64/libkdeui.so.5
#28 0x0000003010b868fd in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#29 0x0000003010b89ae5 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQtCore.so.4
#30 0x0000003010bb5c9e in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQtCore.so.4
#31 0x00000031ffa492a6 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#32 0x00000031ffa49628 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#33 0x00000031ffa496dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#34 0x0000003010bb541e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#35 0x0000003012e6cc46 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtGui.so.4
#36 0x0000003010b8538f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#37 0x0000003010b856dd in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#38 0x0000003010b8ada9 in QCoreApplication::exec() () from /lib64/libQtCore.so.4
#39 0x0000000000403cf0 in main ()

Reported using DrKonqi