Application: baloo_file (5.18.0)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-22-generic x86_64
Distribution: Ubuntu 16.04 LTS

-- Information about the crash:
The first time I turn on a VM, Baloo crashes. The subsequent VM starts are fine.

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 0x7f9337d498c0 (LWP 1504))]

Thread 2 (Thread 0x7f91ecbe8700 (LWP 3132)):
[KCrash Handler]
#6  0x00007f9335d86418 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#7  0x00007f9335d8801a in __GI_abort () at abort.c:89
#8  0x00007f933458b002 in mdb_assert_fail (env=0x1c87ff0, expr_txt=expr_txt@entry=0x7f933458ca5f "rc == 0", func=func@entry=0x7f933458d398 <__func__.7098> "mdb_page_dirty", line=line@entry=2065, file=0x7f933458ca40 "mdb.c") at mdb.c:1481
#9  0x00007f93345806a5 in mdb_page_dirty (txn=0x1c662a0, mp=<optimized out>) at mdb.c:2065
#10 0x00007f9334581863 in mdb_page_alloc (num=num@entry=1, mp=mp@entry=0x7f91ecbe6ee8, mc=0x7f91ecbe7420) at mdb.c:2246
#11 0x00007f9334581ac9 in mdb_page_touch (mc=mc@entry=0x7f91ecbe7420) at mdb.c:2364
#12 0x00007f9334583704 in mdb_cursor_touch (mc=mc@entry=0x7f91ecbe7420) at mdb.c:6267
#13 0x00007f9334586805 in mdb_cursor_put (mc=0x7f91ecbe7420, key=0x7f91ecbe77f0, data=0x7f91ecbe7800, flags=<optimized out>) at mdb.c:6401
#14 0x00007f9334589260 in mdb_put (txn=0x1c662a0, dbi=7, key=key@entry=0x7f91ecbe77f0, data=data@entry=0x7f91ecbe7800, flags=flags@entry=0) at mdb.c:8759
#15 0x00007f9336f19edd in Baloo::IdTreeDB::put (this=this@entry=0x7f91ecbe7860, docId=docId@entry=32673035991386114, subDocIds=...) at ../../../src/engine/idtreedb.cpp:71
#16 0x00007f9336f17540 in Baloo::DocumentUrlDB::add (this=this@entry=0x7f91ecbe7b10, id=id@entry=35500382897571842, parentId=32673035991386114, name=...) at ../../../src/engine/documenturldb.cpp:128
#17 0x00007f9336f17ca0 in Baloo::DocumentUrlDB::put (this=this@entry=0x7f91ecbe7b10, docId=docId@entry=35500245458618370, url=...) at ../../../src/engine/documenturldb.cpp:99
#18 0x00007f9336f2f0ea in Baloo::WriteTransaction::addDocument (this=0x7f91e8003350, doc=...) at ../../../src/engine/writetransaction.cpp:56
#19 0x00007f9336f28fe9 in Baloo::Transaction::addDocument (this=this@entry=0x7f91ecbe7bd0, doc=...) at ../../../src/engine/transaction.cpp:226
#20 0x000000000041cc86 in Baloo::NewFileIndexer::run (this=0x3dd4870) at ../../../src/file/newfileindexer.cpp:72
#21 0x00007f9336847343 in QThreadPoolThread::run (this=0x22b57e0) at thread/qthreadpool.cpp:93
#22 0x00007f933684a84e in QThreadPrivate::start (arg=0x22b57e0) at thread/qthread_unix.cpp:331
#23 0x00007f93354ae6fa in start_thread (arg=0x7f91ecbe8700) at pthread_create.c:333
#24 0x00007f9335e57b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f9337d498c0 (LWP 1504)):
#0  0x00007f9335e479cd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f933305f6c0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f933301be04 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f933301c2c0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f933301c42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9336a81a7f in QEventDispatcherGlib::processEvents (this=0x1c52520, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f9336a28dea in QEventLoop::exec (this=this@entry=0x7ffd29bc7320, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f9336a30e8c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#8  0x000000000041698c in main (argc=1, argv=<optimized out>) at ../../../src/file/main.cpp:88

Possible duplicates by query: bug 363511.

Reported using DrKonqi