Bug 374758

Summary: Krunner crash after few keys input
Product: [Frameworks and Libraries] frameworks-baloo Reporter: Laurent Pointal <laurent.pointal>
Component: EngineAssignee: Pinak Ahuja <pinak.ahuja>
Status: RESOLVED DUPLICATE    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Laurent Pointal 2017-01-08 15:21:28 UTC 
Application: krunner (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-57-generic x86_64
Distribution: Ubuntu 16.04.1 LTS

-- Information about the crash:
Typing pyzo to locate/start it, Krunner crashed after pyz (but has completed to pyzo in the field).

The crash can be reproduced every time.

-- Backtrace:
Application: krunner (krunner), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
[Current thread is 1 (Thread 0x7fa3156828c0 (LWP 2309))]

Thread 12 (Thread 0x7fa2d97fa700 (LWP 4267)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fa3127d4a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x1d623b0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x11a33a0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fa2ef31c50b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x13dcd90, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007fa2ef31d2bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x13dcd90, th=th@entry=0x7fa2d4003190, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007fa2ef3214e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d62690, th=0x7fa2d4003190, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007fa2ef31c46d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7fa2d4003190, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007fa2ef321542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d62690, th=0x7fa2d4003190, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#8  0x00007fa2ef31c46d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7fa2d4003190, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#9  0x00007fa2ef31f353 in ThreadWeaver::Thread::run (this=0x7fa2d4003190) at ../../src/thread.cpp:103
#10 0x00007fa3127d37be in QThreadPrivate::start (arg=0x7fa2d4003190) at thread/qthread_unix.cpp:331
#11 0x00007fa31032d6ba in start_thread (arg=0x7fa2d97fa700) at pthread_create.c:333
#12 0x00007fa3120e982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7fa2d9ffb700 (LWP 4266)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fa3127d4a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x1d623b0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x11a33a0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fa2ef31c50b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x13dcd90, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007fa2ef31d2bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x13dcd90, th=th@entry=0x7fa2dc002990, threadWasBusy=threadWasBusy@entry=true, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007fa2ef3214e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d62690, th=0x7fa2dc002990, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007fa2ef31c46d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7fa2dc002990, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007fa2ef31f353 in ThreadWeaver::Thread::run (this=0x7fa2dc002990) at ../../src/thread.cpp:103
#8  0x00007fa3127d37be in QThreadPrivate::start (arg=0x7fa2dc002990) at thread/qthread_unix.cpp:331
#9  0x00007fa31032d6ba in start_thread (arg=0x7fa2d9ffb700) at pthread_create.c:333
#10 0x00007fa3120e982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7fa2da7fc700 (LWP 4265)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fa3127d4a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x1d623b0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x11a33a0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fa2ef31c50b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x13dcd90, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007fa2ef31d2bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x13dcd90, th=th@entry=0x17bf940, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007fa2ef3214e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d62690, th=0x17bf940, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007fa2ef31c46d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x17bf940, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007fa2ef321542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d62690, th=0x17bf940, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#8  0x00007fa2ef31c46d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x17bf940, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#9  0x00007fa2ef31f353 in ThreadWeaver::Thread::run (this=0x17bf940) at ../../src/thread.cpp:103
#10 0x00007fa3127d37be in QThreadPrivate::start (arg=0x17bf940) at thread/qthread_unix.cpp:331
#11 0x00007fa31032d6ba in start_thread (arg=0x7fa2da7fc700) at pthread_create.c:333
#12 0x00007fa3120e982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fa2daffd700 (LWP 4264)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fa3127d4a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x1d623b0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x11a33a0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fa2ef31c50b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x13dcd90, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007fa2ef31d2bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x13dcd90, th=th@entry=0x17c05f0, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007fa2ef3214e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d62690, th=0x17c05f0, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007fa2ef31c46d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x17c05f0, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007fa2ef321542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d62690, th=0x17c05f0, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#8  0x00007fa2ef31c46d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x17c05f0, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#9  0x00007fa2ef31f353 in ThreadWeaver::Thread::run (this=0x17c05f0) at ../../src/thread.cpp:103
#10 0x00007fa3127d37be in QThreadPrivate::start (arg=0x17c05f0) at thread/qthread_unix.cpp:331
#11 0x00007fa31032d6ba in start_thread (arg=0x7fa2daffd700) at pthread_create.c:333
#12 0x00007fa3120e982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7fa2db7fe700 (LWP 4263)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fa3127d4a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x1d623b0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x11a33a0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fa2ef31c50b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x13dcd90, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007fa2ef31d2bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x13dcd90, th=th@entry=0x17c0540, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007fa2ef3214e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d62690, th=0x17c0540, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007fa2ef31c46d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x17c0540, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007fa2ef321542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d62690, th=0x17c0540, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#8  0x00007fa2ef31c46d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x17c0540, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#9  0x00007fa2ef31f353 in ThreadWeaver::Thread::run (this=0x17c0540) at ../../src/thread.cpp:103
#10 0x00007fa3127d37be in QThreadPrivate::start (arg=0x17c0540) at thread/qthread_unix.cpp:331
#11 0x00007fa31032d6ba in start_thread (arg=0x7fa2db7fe700) at pthread_create.c:333
#12 0x00007fa3120e982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fa2dbfff700 (LWP 4262)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fa3127d4a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x1d623b0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x11a33a0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fa2ef31c50b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x13dcd90, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007fa2ef31d2bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x13dcd90, th=th@entry=0x17c7970, threadWasBusy=threadWasBusy@entry=true, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007fa2ef3214e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d62690, th=0x17c7970, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007fa2ef31c46d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x17c7970, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007fa2ef31f353 in ThreadWeaver::Thread::run (this=0x17c7970) at ../../src/thread.cpp:103
#8  0x00007fa3127d37be in QThreadPrivate::start (arg=0x17c7970) at thread/qthread_unix.cpp:331
#9  0x00007fa31032d6ba in start_thread (arg=0x7fa2dbfff700) at pthread_create.c:333
#10 0x00007fa3120e982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fa2e0fc5700 (LWP 4261)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fa3127d4a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x1d623b0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x11a33a0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fa2ef31c50b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x13dcd90, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007fa2ef31d2bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x13dcd90, th=th@entry=0x17c0050, threadWasBusy=threadWasBusy@entry=true, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007fa2ef3214e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1d62690, th=0x17c0050, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007fa2ef31c46d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x17c0050, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007fa2ef31f353 in ThreadWeaver::Thread::run (this=0x17c0050) at ../../src/thread.cpp:103
#8  0x00007fa3127d37be in QThreadPrivate::start (arg=0x17c0050) at thread/qthread_unix.cpp:331
#9  0x00007fa31032d6ba in start_thread (arg=0x7fa2e0fc5700) at pthread_create.c:333
#10 0x00007fa3120e982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fa2e17c6700 (LWP 4260)):
[KCrash Handler]
#6  0x00007fa312018428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#7  0x00007fa31201a02a in __GI_abort () at abort.c:89
#8  0x00007fa2e64ed002 in mdb_assert_fail (env=0x7fa2dc08a020, expr_txt=expr_txt@entry=0x7fa2e64eeb22 "IS_LEAF(mp)", func=func@entry=0x7fa2e64ef330 <__func__.7885> "mdb_cursor_next", line=line@entry=5685, file=0x7fa2e64eea40 "mdb.c") at mdb.c:1481
#9  0x00007fa2e64e4740 in mdb_cursor_next (mc=mc@entry=0x7fa2dc00bb20, key=0x7fa2e17c5410, data=data@entry=0x7fa2e17c5420, op=MDB_NEXT) at mdb.c:5685
#10 0x00007fa2e64e31e9 in mdb_cursor_get (mc=0x7fa2dc00bb20, key=key@entry=0x7fa2e17c5410, data=data@entry=0x7fa2e17c5420, op=op@entry=MDB_NEXT) at mdb.c:6184
#11 0x00007fa2e670acae in Baloo::PostingDB::iter<Baloo::PostingDB::prefixIter(const QByteArray&)::<lambda(const QByteArray&)> > (this=0xdc00ffe0, this=0xdc00ffe0, prefix=..., validate=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/engine/postingdb.cpp:227
#12 Baloo::PostingDB::prefixIter (this=this@entry=0x7fa2e17c5500, prefix=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/engine/postingdb.cpp:246
#13 0x00007fa2e67142dd in Baloo::Transaction::postingIterator (this=this@entry=0x7fa2e17c5900, query=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/engine/transaction.cpp:296
#14 0x00007fa2e6b5b5ca in Baloo::SearchStore::constructQuery (this=this@entry=0x7fa2e17c59f0, tr=tr@entry=0x7fa2e17c5900, term=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/lib/searchstore.cpp:288
#15 0x00007fa2e6b5abfa in Baloo::SearchStore::constructQuery (this=this@entry=0x7fa2e17c59f0, tr=tr@entry=0x7fa2e17c5900, term=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/lib/searchstore.cpp:163
#16 0x00007fa2e6b5bbcc in Baloo::SearchStore::exec (this=this@entry=0x7fa2e17c59f0, term=..., offset=0, limit=10, sortResults=<optimized out>) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/lib/searchstore.cpp:75
#17 0x00007fa2e6b4abc2 in Baloo::Query::exec (this=this@entry=0x7fa2e17c5aa0) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/lib/query.cpp:210
#18 0x00007fa2e6d6bf2f in SearchRunner::match (this=this@entry=0x1648440, context=..., type=..., category=...) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/runners/baloo/baloosearchrunner.cpp:98
#19 0x00007fa2e6d6c879 in SearchRunner::match (this=0x1648440, context=...) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/runners/baloo/baloosearchrunner.cpp:160
#20 0x00007fa2ef53c540 in Plasma::AbstractRunner::performMatch (this=0x1648440, localContext=...) at ../../src/abstractrunner.cpp:131
#21 0x00007fa2ef320c90 in ThreadWeaver::Executor::run (this=<optimized out>, job=..., thread=<optimized out>) at ../../src/executor.cpp:52
#22 0x00007fa2ef31f7e0 in ThreadWeaver::Job::execute (this=<optimized out>, self=..., th=0x17cc210) at ../../src/job.cpp:83
#23 0x00007fa2ef31f28a in ThreadWeaver::Thread::run (this=0x17cc210) at ../../src/thread.cpp:114
#24 0x00007fa3127d37be in QThreadPrivate::start (arg=0x17cc210) at thread/qthread_unix.cpp:331
#25 0x00007fa31032d6ba in start_thread (arg=0x7fa2e17c6700) at pthread_create.c:333
#26 0x00007fa3120e982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fa2ed5eb700 (LWP 4258)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fa3127d4a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x1cedc90) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ce0500, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fa314b2d92e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fa314b2e1b3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fa3127d37be in QThreadPrivate::start (arg=0x1ce0480) at thread/qthread_unix.cpp:331
#6  0x00007fa31032d6ba in start_thread (arg=0x7fa2ed5eb700) at pthread_create.c:333
#7  0x00007fa3120e982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fa2f6396700 (LWP 2324)):
#0  0x00007fa30f7f0ae4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fa30f7ab9b0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa30f7ac2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa30f7ac4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa312a0a7eb in QEventDispatcherGlib::processEvents (this=0x7fa2f00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fa3129b1b4a in QEventLoop::exec (this=this@entry=0x7fa2f6395ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fa3127ce834 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fa3146463c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fa3127d37be in QThreadPrivate::start (arg=0x123d270) at thread/qthread_unix.cpp:331
#9  0x00007fa31032d6ba in start_thread (arg=0x7fa2f6396700) at pthread_create.c:333
#10 0x00007fa3120e982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fa302719700 (LWP 2310)):
#0  0x00007fa3120ddb5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fa3115cec62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fa3115d08d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fa304e99629 in QXcbEventReader::run (this=0xfa7810) at qxcbconnection.cpp:1253
#4  0x00007fa3127d37be in QThreadPrivate::start (arg=0xfa7810) at thread/qthread_unix.cpp:331
#5  0x00007fa31032d6ba in start_thread (arg=0x7fa302719700) at pthread_create.c:333
#6  0x00007fa3120e982d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fa3156828c0 (LWP 2309)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fa3115ceeb9 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fa3115d0617 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fa3115d0721 in xcb_wait_for_reply () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#4  0x00007fa313a9ee60 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5WindowSystem.so.5
#5  0x00007fa313a9a061 in NETWinInfo::update(QFlags<NET::Property>, QFlags<NET::Property2>) () from /usr/lib/x86_64-linux-gnu/libKF5WindowSystem.so.5
#6  0x00007fa313a9cf90 in NETWinInfo::NETWinInfo(xcb_connection_t*, unsigned int, unsigned int, QFlags<NET::Property>, QFlags<NET::Property2>, NET::Role) () from /usr/lib/x86_64-linux-gnu/libKF5WindowSystem.so.5
#7  0x00007fa2f9e3e184 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so
#8  0x0000000000409ece in View::event (this=0x7ffda7e6fa70, event=0x7ffda7e6f260) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/krunner/view.cpp:192
#9  0x00007fa31353505c in QApplicationPrivate::notify_helper (this=this@entry=0xf8c5a0, receiver=receiver@entry=0x7ffda7e6fa70, e=e@entry=0x7ffda7e6f260) at kernel/qapplication.cpp:3716
#10 0x00007fa31353a516 in QApplication::notify (this=0x7ffda7e6fa00, receiver=0x7ffda7e6fa70, e=0x7ffda7e6f260) at kernel/qapplication.cpp:3499
#11 0x00007fa3129b438b in QCoreApplication::notifyInternal (this=0x7ffda7e6fa00, receiver=receiver@entry=0x7ffda7e6fa70, event=event@entry=0x7ffda7e6f260) at kernel/qcoreapplication.cpp:965
#12 0x00007fa312cff070 in QCoreApplication::sendEvent (event=0x7ffda7e6f260, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#13 QWindowPrivate::deliverUpdateRequest (this=this@entry=0x1003a10) at kernel/qwindow.cpp:2087
#14 0x00007fa312cff5a9 in QWindow::event (this=0x7ffda7e6fa70, ev=<optimized out>) at kernel/qwindow.cpp:2069
#15 0x00007fa314b60871 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007fa3153ef2db in PlasmaQuick::Dialog::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#17 0x0000000000409eaf in View::event (this=0x7ffda7e6fa70, event=0x7ffda7e6f6f0) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/krunner/view.cpp:190
#18 0x00007fa31353505c in QApplicationPrivate::notify_helper (this=this@entry=0xf8c5a0, receiver=receiver@entry=0x7ffda7e6fa70, e=e@entry=0x7ffda7e6f6f0) at kernel/qapplication.cpp:3716
#19 0x00007fa31353a516 in QApplication::notify (this=0x7ffda7e6fa00, receiver=0x7ffda7e6fa70, e=0x7ffda7e6f6f0) at kernel/qapplication.cpp:3499
#20 0x00007fa3129b438b in QCoreApplication::notifyInternal (this=0x7ffda7e6fa00, receiver=0x7ffda7e6fa70, event=event@entry=0x7ffda7e6f6f0) at kernel/qcoreapplication.cpp:965
#21 0x00007fa312a095ed in QCoreApplication::sendEvent (event=0x7ffda7e6f6f0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#22 QTimerInfoList::activateTimers (this=0xfcfbb0) at kernel/qtimerinfo_unix.cpp:637
#23 0x00007fa312a09b29 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#24 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:224
#25 0x00007fa30f7ac1a7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007fa30f7ac400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007fa30f7ac4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007fa312a0a7eb in QEventDispatcherGlib::processEvents (this=0xfd4930, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#29 0x00007fa3129b1b4a in QEventLoop::exec (this=this@entry=0x7ffda7e6f930, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#30 0x00007fa3129b9bec in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#31 0x00007fa312cedbfc in QGuiApplication::exec () at kernel/qguiapplication.cpp:1542
#32 0x00007fa313531495 in QApplication::exec () at kernel/qapplication.cpp:2976
#33 0x0000000000407697 in main (argc=1, argv=<optimized out>) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/krunner/main.cpp:80

Possible duplicates by query: bug 374183.

Reported using DrKonqi
Comment 1 Christoph Feck 2017-03-24 22:32:51 UTC 

*** This bug has been marked as a duplicate of bug 369092 ***