Application: baloo_file (5.21.0)

Qt Version: 5.6.0
Operating System: Linux 4.4.7-300.fc23.x86_64 x86_64
Distribution: "Fedora release 23 (Twenty Three)"

-- Information about the crash:
I see this error every time after logging in to the KDE.

The crash can be reproduced every time.

-- Backtrace:
Application: Baloo File Indexing Daemon (baloo_file), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
__lll_robust_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S:85
85		movl	(%rdi), %eax
[Current thread is 1 (Thread 0x7f3b5d99b8c0 (LWP 1342))]

Thread 3 (Thread 0x7f3b4af1f700 (LWP 1396)):
#0  0x00007f3b5b66cfdd in poll () at /lib64/libc.so.6
#1  0x00007f3b56fdc16c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f3b44003220, timeout=<optimized out>, context=0x7f3b44000990) at gmain.c:4135
#2  0x00007f3b56fdc16c in g_main_context_iterate (context=context@entry=0x7f3b44000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835
#3  0x00007f3b56fdc27c in g_main_context_iteration (context=0x7f3b44000990, may_block=1) at gmain.c:3901
#4  0x00007f3b5c6bcd0b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f3b5c6656ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f3b5c48f004 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007f3b5dabb4b5 in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5
#8  0x00007f3b5c493e18 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007f3b5a75460a in start_thread (arg=0x7f3b4af1f700) at pthread_create.c:334
#10 0x00007f3b5b678a4d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f3b4a237700 (LWP 5888)):
[KCrash Handler]
#5  0x00007f3b5cb82cd2 in Baloo::PostingCodec::decode(QByteArray const&) () at /lib64/libKF5BalooEngine.so.5
#6  0x00007f3b5cb6b224 in Baloo::PostingDB::get(QByteArray const&) () at /lib64/libKF5BalooEngine.so.5
#7  0x00007f3b5cb7f07d in Baloo::WriteTransaction::commit() () at /lib64/libKF5BalooEngine.so.5
#8  0x00007f3b5cb754c2 in Baloo::Transaction::commit() () at /lib64/libKF5BalooEngine.so.5
#9  0x00005613332ce6f9 in Baloo::NewFileIndexer::run() ()
#10 0x00007f3b5c490223 in QThreadPoolThread::run() () at /lib64/libQt5Core.so.5
#11 0x00007f3b5c493e18 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#12 0x00007f3b5a75460a in start_thread (arg=0x7f3b4a237700) at pthread_create.c:334
#13 0x00007f3b5b678a4d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f3b5d99b8c0 (LWP 1342)):
#0  0x00007f3b5a75c9fc in __lll_robust_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S:85
#1  0x00007f3b5a756651 in __pthread_mutex_lock_full (mutex=0x7f3b5d974040) at ../nptl/pthread_mutex_lock.c:257
#2  0x00007f3b5c1d6062 in mdb_txn_renew0 (txn=txn@entry=0x561335365ce0) at mdb.c:2692
#3  0x00007f3b5c1d7344 in mdb_txn_begin (env=0x561335323420, parent=0x0, flags=0, ret=0x7fff3b9e7dd8) at mdb.c:2850
#4  0x00007f3b5cb74e2b in Baloo::Transaction::Transaction(Baloo::Database const&, Baloo::Transaction::TransactionType) () at /lib64/libKF5BalooEngine.so.5
#5  0x00005613332dd466 in Baloo::MetadataMover::removeFileMetadata(QString const&) ()
#6  0x00007f3b5c6943de in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#7  0x00005613332e7ef5 in Baloo::PendingFileQueue::removeFileIndex(QString const&) ()
#8  0x00005613332dace6 in Baloo::PendingFileQueue::processCache() ()
#9  0x00007f3b5c6943de in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#10 0x00007f3b5c6a08b8 in QTimer::timerEvent(QTimerEvent*) () at /lib64/libQt5Core.so.5
#11 0x00007f3b5c694e93 in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#12 0x00007f3b5c66795b in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#13 0x00007f3b5c6bbbde in QTimerInfoList::activateTimers() () at /lib64/libQt5Core.so.5
#14 0x00007f3b5c6bc149 in idleTimerSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#15 0x00007f3b56fdbe3a in g_main_context_dispatch (context=0x5613352ff1a0) at gmain.c:3154
#16 0x00007f3b56fdbe3a in g_main_context_dispatch (context=context@entry=0x5613352ff1a0) at gmain.c:3769
#17 0x00007f3b56fdc1d0 in g_main_context_iterate (context=context@entry=0x5613352ff1a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3840
#18 0x00007f3b56fdc27c in g_main_context_iteration (context=0x5613352ff1a0, may_block=1) at gmain.c:3901
#19 0x00007f3b5c6bccef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#20 0x00007f3b5c6656ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#21 0x00007f3b5c66dddc in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#22 0x00005613332c586c in main ()

Possible duplicates by query: bug 362056, bug 356445.

Reported using DrKonqi