Running kde plasmas 5 on Archlinux, with Nvidia card & open source driver, use wayland session.

logging and crash reporter will show The Baloo File Extractor crashed.

And I tought it's not same with https://bugs.kde.org/show_bug.cgi?id=352856

dump info:

Application: Baloo File Extractor (baloo_file_extractor), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7febdbd75100 (LWP 6226))]

Thread 6 (Thread 0x7febce1b8700 (LWP 6249)):
#0  0x00007febde8bbc45 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007febd9c81aec in ?? () from /usr/lib/dri/nouveau_dri.so
#2  0x00007febd9c816e8 in ?? () from /usr/lib/dri/nouveau_dri.so
#3  0x00007febde8b54cf in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007febdee2c2d3 in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7febce9b9700 (LWP 6248)):
#0  0x00007febde8bbc45 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007febd9c81aec in ?? () from /usr/lib/dri/nouveau_dri.so
#2  0x00007febd9c816e8 in ?? () from /usr/lib/dri/nouveau_dri.so
#3  0x00007febde8b54cf in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007febdee2c2d3 in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7febcf1ba700 (LWP 6247)):
#0  0x00007febde8bbc45 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007febd9c81aec in ?? () from /usr/lib/dri/nouveau_dri.so
#2  0x00007febd9c816e8 in ?? () from /usr/lib/dri/nouveau_dri.so
#3  0x00007febde8b54cf in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007febdee2c2d3 in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7febd8fd1700 (LWP 6246)):
#0  0x00007febde8bbc45 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007febd9c81aec in ?? () from /usr/lib/dri/nouveau_dri.so
#2  0x00007febd9c816e8 in ?? () from /usr/lib/dri/nouveau_dri.so
#3  0x00007febde8b54cf in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007febdee2c2d3 in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7febdb53e700 (LWP 6237)):
#0  0x00007febdee219ef in poll () from /usr/lib/libc.so.6
#1  0x00007febdded0120 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007febdded01f1 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007febdf3dcd5c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007febdf38341c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007febdf1a8e62 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007febe0473b28 in ?? () from /usr/lib/libQt5DBus.so.5
#7  0x00007febdf1a9fd6 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007febde8b54cf in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007febdee2c2d3 in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7febdbd75100 (LWP 6226)):
[KCrash Handler]
#6  0x00007febdea6a341 in ?? () from /usr/lib/liblmdb.so
#7  0x00007febdea71918 in mdb_cursor_del () from /usr/lib/liblmdb.so
#8  0x00007febdea73033 in ?? () from /usr/lib/liblmdb.so
#9  0x00007febe052e286 in Baloo::DocumentIdDB::del(unsigned long long) () from /usr/lib/libKF5BalooEngine.so.5
#10 0x00007febe0555a74 in Baloo::WriteTransaction::removeDocument(unsigned long long) () from /usr/lib/libKF5BalooEngine.so.5
#11 0x00007febe0546b34 in Baloo::Transaction::removeDocument(unsigned long long) () from /usr/lib/libKF5BalooEngine.so.5
#12 0x000056157002211e in ?? ()
#13 0x00007febdf3b21ba in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#14 0x00007febdfe1b472 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#15 0x00007febdfe24c89 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#16 0x00007febdf3848b2 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#17 0x00007febdf387116 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#18 0x00007febdf3dd6f4 in ?? () from /usr/lib/libQt5Core.so.5
#19 0x00007febddece39e in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#20 0x00007febdded01b1 in ?? () from /usr/lib/libglib-2.0.so.0
#21 0x00007febdded01f1 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#22 0x00007febdf3dcd40 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#23 0x00007febdf38341c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#24 0x00007febdf38b426 in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#25 0x0000561570020283 in ?? ()
#26 0x00007febded54153 in __libc_start_main () from /usr/lib/libc.so.6
#27 0x000056157002032e in ?? ()
[Inferior 1 (process 6226) detached]