Application: baloo_file_extractor (5.56.0)

Qt Version: 5.12.0
Frameworks Version: 5.56.0
Operating System: Linux 4.15.0-46-generic x86_64
Distribution: KDE neon User Edition 5.15

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

I'm on neon. This error message appears right after restart.

The crash can be reproduced every time.

-- Backtrace:
Application: Baloo File Extractor (baloo_file_extractor), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ffa25653c80 (LWP 3533))]

Thread 3 (Thread 0x7ff9ff0c8700 (LWP 3541)):
#0  0x00007ffa221660b4 in __GI___libc_read (fd=8, buf=0x7ff9ff0c7b60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007ffa1e87bcd0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffa1e837027 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffa1e8374e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ffa1e83764c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffa22aad15b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff9f8000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007ffa22a4e64a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff9ff0c7d70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007ffa2287641a in QThread::exec() (this=this@entry=0x7ffa246b9d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:531
#8  0x00007ffa24442015 in QDBusConnectionManager::run() (this=0x7ffa246b9d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#9  0x00007ffa22877bc2 in QThreadPrivate::start(void*) (arg=0x7ffa246b9d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:361
#10 0x00007ffa209d36db in start_thread (arg=0x7ff9ff0c8700) at pthread_create.c:463
#11 0x00007ffa2217788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ffa18987700 (LWP 3534)):
#0  0x00007ffa2216abf9 in __GI___poll (fds=0x7ffa18986cb8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffa1e3c6747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ffa1e3c836a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ffa19f0232a in QXcbEventQueue::run() (this=0x55a659c5ccd0) at qxcbeventqueue.cpp:225
#4  0x00007ffa22877bc2 in QThreadPrivate::start(void*) (arg=0x55a659c5ccd0) at thread/qthread_unix.cpp:361
#5  0x00007ffa209d36db in start_thread (arg=0x7ffa18987700) at pthread_create.c:463
#6  0x00007ffa2217788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ffa25653c80 (LWP 3533)):
[KCrash Handler]
#6  0x00007ffa22094e97 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007ffa22096801 in __GI_abort () at abort.c:79
#8  0x00007ffa21382932 in  () at /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#9  0x00007ffa213777b5 in  () at /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#10 0x00007ffa213789bb in  () at /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#11 0x00007ffa21378c29 in  () at /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#12 0x00007ffa2137a854 in  () at /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#13 0x00007ffa2137ea7a in mdb_cursor_del () at /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#14 0x00007ffa2138029c in  () at /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#15 0x00007ffa24adaf2e in Baloo::DocumentDB::del(unsigned long long) () at /usr/lib/x86_64-linux-gnu/libKF5BalooEngine.so.5
#16 0x00007ffa24af431a in Baloo::WriteTransaction::removeDocument(unsigned long long) () at /usr/lib/x86_64-linux-gnu/libKF5BalooEngine.so.5
#17 0x000055a657a4c37c in  ()
#18 0x000055a657a4cb9e in  ()
#19 0x00007ffa22a8cd04 in QtPrivate::QSlotObjectBase::call(QObject*, void**) (a=0x7ffce85365a0, r=<optimized out>, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#20 0x00007ffa22a8cd04 in QSingleShotTimer::timerEvent(QTimerEvent*) (this=0x55a659ca80a0) at kernel/qtimer.cpp:318
#21 0x00007ffa22a8094b in QObject::event(QEvent*) (this=0x55a659ca80a0, e=<optimized out>) at kernel/qobject.cpp:1271
#22 0x00007ffa2384683c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x55a659c570f0, receiver=receiver@entry=0x55a659ca80a0, e=e@entry=0x7ffce85368e0) at kernel/qapplication.cpp:3752
#23 0x00007ffa2384ddd0 in QApplication::notify(QObject*, QEvent*) (this=0x7ffce8536bc0, receiver=0x55a659ca80a0, e=0x7ffce85368e0) at kernel/qapplication.cpp:3499
#24 0x00007ffa22a50328 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x55a659ca80a0, event=0x7ffce85368e0) at kernel/qcoreapplication.cpp:1061
#25 0x00007ffa22aac5a9 in QTimerInfoList::activateTimers() (this=0x55a659ca28d0) at kernel/qtimerinfo_unix.cpp:643
#26 0x00007ffa22aacd71 in timerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:182
#27 0x00007ffa1e837387 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007ffa1e8375c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007ffa1e83764c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007ffa22aad13f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55a659c9c060, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#31 0x00007ffa22a4e64a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffce8536b30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#32 0x00007ffa22a57800 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1364
#33 0x000055a657a4b22d in  ()
#34 0x00007ffa22077b97 in __libc_start_main (main=0x55a657a4afe0, argc=1, argv=0x7ffce8536e18, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffce8536e08) at ../csu/libc-start.c:310
#35 0x000055a657a4b2da in  ()

Reported using DrKonqi