Application: baloo_file (5.18.0)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-42-generic x86_64
Distribution: Ubuntu 16.04.1 LTS

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

Baloo will without question crash every time I download files in Chrome.

- Custom settings of the application:

I've tried disabling various extensions. Nothing seems to help.

The crash can be reproduced every time.

-- Backtrace:
Application: Baloo File Indexing Daemon (baloo_file), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f8f44af38c0 (LWP 2038))]

Thread 2 (Thread 0x7f8df98b9700 (LWP 10305)):
[KCrash Handler]
#6  0x00007f8f42b33418 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#7  0x00007f8f42b3501a in __GI_abort () at abort.c:89
#8  0x00007f8f41338002 in ?? () from /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#9  0x00007f8f4132d6a5 in ?? () from /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#10 0x00007f8f4132e863 in ?? () from /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#11 0x00007f8f4132eac9 in ?? () from /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#12 0x00007f8f4132eeb8 in ?? () from /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#13 0x00007f8f4132f0c8 in ?? () from /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#14 0x00007f8f413306b6 in ?? () from /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#15 0x00007f8f41333805 in mdb_cursor_put () from /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#16 0x00007f8f41336260 in mdb_put () from /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#17 0x00007f8f43cc6edd in Baloo::IdTreeDB::put(unsigned long long, QVector<unsigned long long>) () from /usr/lib/x86_64-linux-gnu/libKF5BalooEngine.so.5
#18 0x00007f8f43cc4540 in Baloo::DocumentUrlDB::add(unsigned long long, unsigned long long, QByteArray const&) () from /usr/lib/x86_64-linux-gnu/libKF5BalooEngine.so.5
#19 0x00007f8f43cc4916 in Baloo::DocumentUrlDB::put(unsigned long long, QByteArray const&) () from /usr/lib/x86_64-linux-gnu/libKF5BalooEngine.so.5
#20 0x00007f8f43cdc0ea in Baloo::WriteTransaction::addDocument(Baloo::Document const&) () from /usr/lib/x86_64-linux-gnu/libKF5BalooEngine.so.5
#21 0x000000000041cc86 in Baloo::NewFileIndexer::run() ()
#22 0x00007f8f435f4343 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f8f435f784e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f8f4225b6fa in start_thread (arg=0x7f8df98b9700) at pthread_create.c:333
#25 0x00007f8f42c04b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f8f44af38c0 (LWP 2038)):
#0  0x00007f8f42bf49cd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f8f3fe0c740 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8f3fdc8e84 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8f3fdc9340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f8f3fdc94ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8f4382ea7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f8f437d5dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f8f437dde8c in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x000000000041698c in main ()

Reported using DrKonqi