Application: plasmashell (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-21-generic x86_64
Distribution: Ubuntu 16.04 LTS

-- Information about the crash:
Started the menu, then started to search anything, crashed not long after

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
__GI___pthread_mutex_lock (mutex=0x15ac168) at ../nptl/pthread_mutex_lock.c:67
[Current thread is 1 (Thread 0x7faacb3278c0 (LWP 1722))]

Thread 12 (Thread 0x7faab6652700 (LWP 1723)):
#0  0x00007faac5a33e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007faac9af8c62 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007faac9afa8d7 in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007faab87a0629 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007faac612984e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007faac52166fa in start_thread (arg=0x7faab6652700) at pthread_create.c:333
#6  0x00007faac5a3fb5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7faaafde7700 (LWP 1724)):
#0  0x00007faac5a33e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007faac27c931c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7faaa8003070, timeout=<optimized out>, context=0x7faaa8000990) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:4135
#2  0x00007faac27c931c in g_main_context_iterate (context=context@entry=0x7faaa8000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3835
#3  0x00007faac27c942c in g_main_context_iteration (context=0x7faaa8000990, may_block=1) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3901
#4  0x00007faac6360a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007faac6307dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007faac61248a4 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007faac89cc3c5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007faac612984e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007faac52166fa in start_thread (arg=0x7faaafde7700) at pthread_create.c:333
#10 0x00007faac5a3fb5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7faaa480c700 (LWP 1725)):
#0  0x00007faac280da49 in g_mutex_lock (mutex=mutex@entry=0x7faaa0000990) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gthread-posix.c:1338
#1  0x00007faac27c9418 in g_main_context_iteration (context=0x7faaa0000990, may_block=1) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3900
#2  0x00007faac6360a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007faac6307dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007faac61248a4 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007faac89cc3c5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007faac612984e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007faac52166fa in start_thread (arg=0x7faaa480c700) at pthread_create.c:333
#8  0x00007faac5a3fb5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7faa9e946700 (LWP 1726)):
#0  0x00007faac280da62 in g_mutex_unlock (mutex=0x7faa98000990) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gthread-posix.c:1347
#1  0x00007faac27c91cd in g_main_context_iterate (context=context@entry=0x7faa98000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3788
#2  0x00007faac27c942c in g_main_context_iteration (context=0x7faa98000990, may_block=1) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3901
#3  0x00007faac6360a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007faac6307dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007faac61248a4 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007faac89cc3c5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007faac612984e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007faac52166fa in start_thread (arg=0x7faa9e946700) at pthread_create.c:333
#9  0x00007faac5a3fb5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7faa9cfdc700 (LWP 1727)):
#0  0x00007faac521c3a0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faacad71bd4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007faacad71c19 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007faac52166fa in start_thread (arg=0x7faa9cfdc700) at pthread_create.c:333
#4  0x00007faac5a3fb5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7faa139f9700 (LWP 1729)):
#0  0x00007faac280da64 in g_mutex_unlock (mutex=0x7faa0c000990) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gthread-posix.c:1350
#1  0x00007faac27c91cd in g_main_context_iterate (context=context@entry=0x7faa0c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3788
#2  0x00007faac27c942c in g_main_context_iteration (context=0x7faa0c000990, may_block=1) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3901
#3  0x00007faac6360a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007faac6307dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007faac61248a4 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007faac9352ed6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007faac612984e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007faac52166fa in start_thread (arg=0x7faa139f9700) at pthread_create.c:333
#9  0x00007faac5a3fb5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7faa043bd700 (LWP 1741)):
#0  0x00007faac27c6385 in g_source_iter_next (iter=iter@entry=0x7faa043bcb10, source=source@entry=0x7faa043bcb08) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:934
#1  0x00007faac27c884b in g_main_context_prepare (context=context@entry=0x7fa9fc000990, priority=priority@entry=0x7faa043bcb90) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3420
#2  0x00007faac27c924b in g_main_context_iterate (context=context@entry=0x7fa9fc000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3820
#3  0x00007faac27c942c in g_main_context_iteration (context=0x7fa9fc000990, may_block=1) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3901
#4  0x00007faac6360a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007faac6307dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007faac61248a4 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007faa0689d7d7 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#8  0x00007faac612984e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007faac52166fa in start_thread (arg=0x7faa043bd700) at pthread_create.c:333
#10 0x00007faac5a3fb5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fa9f6037700 (LWP 2149)):
#0  0x00007faac521c3a0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faac612aaeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007faa147e02bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007faa147e44e8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007faa147df46d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007faa147e4542 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007faa147df46d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007faa147e2353 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007faac612984e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007faac52166fa in start_thread (arg=0x7fa9f6037700) at pthread_create.c:333
#10 0x00007faac5a3fb5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fa9ef148700 (LWP 2150)):
#0  0x00007faac521c3a0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faac612aaeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007faa147e02bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007faa147e44e8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007faa147df46d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007faa147e4542 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007faa147df46d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007faa147e2353 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007faac612984e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007faac52166fa in start_thread (arg=0x7fa9ef148700) at pthread_create.c:333
#10 0x00007faac5a3fb5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fa9ee947700 (LWP 2151)):
#0  0x00007faac521c3a0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faac612aaeb in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007faa147e02bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#3  0x00007faa147e44e8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007faa147df46d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007faa147e4542 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007faa147df46d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007faa147e2353 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007faac612984e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007faac52166fa in start_thread (arg=0x7fa9ee947700) at pthread_create.c:333
#10 0x00007faac5a3fb5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fa9ee146700 (LWP 2152)):
[KCrash Handler]
#6  0x00007faac59d7ff8 in __memcpy_sse2_unaligned () at ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S:169
#7  0x00007fa9ef7ae8da in Baloo::PostingCodec::decode(QByteArray const&) () at /usr/lib/x86_64-linux-gnu/libKF5BalooEngine.so.5
#8  0x00007fa9ef79a92e in  () at /usr/lib/x86_64-linux-gnu/libKF5BalooEngine.so.5
#9  0x00007fa9ef79a9f1 in Baloo::PostingDB::iter(QByteArray const&) () at /usr/lib/x86_64-linux-gnu/libKF5BalooEngine.so.5
#10 0x00007fa9ef7a38bb in Baloo::Transaction::postingIterator(Baloo::EngineQuery const&) const () at /usr/lib/x86_64-linux-gnu/libKF5BalooEngine.so.5
#11 0x00007fa9efbeaa4c in  () at /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#12 0x00007fa9efbeabfa in  () at /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#13 0x00007fa9efbebbcc in  () at /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#14 0x00007fa9efbdabc2 in Baloo::Query::exec() () at /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#15 0x00007fa9efdfbf2f in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_baloosearchrunner.so
#16 0x00007fa9efdfc916 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_baloosearchrunner.so
#17 0x00007faa15073540 in Plasma::AbstractRunner::performMatch(Plasma::RunnerContext&) () at /usr/lib/x86_64-linux-gnu/libKF5Runner.so.5
#18 0x00007faa147e3c90 in ThreadWeaver::Executor::run(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#19 0x00007faa147e27e0 in ThreadWeaver::Job::execute(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#20 0x00007faa147e228a in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#21 0x00007faac612984e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007faac52166fa in start_thread (arg=0x7fa9ee146700) at pthread_create.c:333
#23 0x00007faac5a3fb5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7faacb3278c0 (LWP 1722)):
#0  0x00007faac5218d84 in __GI___pthread_mutex_lock (mutex=0x15ac168) at ../nptl/pthread_mutex_lock.c:67
#1  0x00007faac9af9c35 in xcb_flush () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007faac6338fca in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007faac6360a4e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007faac6307dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007faac630fe8c in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x0000000000432d4a in main ()

Reported using DrKonqi