Bug 380882

Summary: Crash in Plasma caused by search
Product: [Frameworks and Libraries] frameworks-baloo Reporter: Vedran Ljubovic <vljubovic>
Component: EngineAssignee: Pinak Ahuja <pinak.ahuja>
Status: RESOLVED DUPLICATE    
Severity: crash CC: bshah, kde, nate, plasma-bugs-null
Priority: NOR Keywords: drkonqi
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Vedran Ljubovic 2017-06-06 10:01:38 UTC 
Application: plasmashell (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-72-generic x86_64
Distribution: Ubuntu 16.04.2 LTS

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

Started searching for an app in Application Menu widget. Plasma crashed as I typed the first four letters (keep). I don't think this is related to Baloo crash that Assistant is suggesting as duplicate, since Baloo is mentioned nowhere in my backtrace and I'm not using it.

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".
pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
[Current thread is 1 (Thread 0x7f48111428c0 (LWP 2321))]

Thread 16 (Thread 0x7f472f7fe700 (LWP 20254)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f480bf60a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x73f72a0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x75ca040, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f475959750b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x7003fd0, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f47595982bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x7003fd0, th=th@entry=0x7f4724002f90, threadWasBusy=threadWasBusy@entry=true, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f475959c4e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x7f4724002f90, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7f4724002f90, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007f475959a353 in ThreadWeaver::Thread::run (this=0x7f4724002f90) at ../../src/thread.cpp:103
#8  0x00007f480bf5f7be in QThreadPrivate::start (arg=0x7f4724002f90) at thread/qthread_unix.cpp:331
#9  0x00007f480b04c6ba in start_thread (arg=0x7f472f7fe700) at pthread_create.c:333
#10 0x00007f480b87582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f472ffff700 (LWP 20253)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f480bf60a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x73f72a0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x75ca040, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f475959750b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x7003fd0, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f47595982bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x7003fd0, th=th@entry=0x7f47300025d0, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f475959c4e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x7f47300025d0, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7f47300025d0, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007f475959c542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x7f47300025d0, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#8  0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7f47300025d0, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#9  0x00007f475959a353 in ThreadWeaver::Thread::run (this=0x7f47300025d0) at ../../src/thread.cpp:103
#10 0x00007f480bf5f7be in QThreadPrivate::start (arg=0x7f47300025d0) at thread/qthread_unix.cpp:331
#11 0x00007f480b04c6ba in start_thread (arg=0x7f472ffff700) at pthread_create.c:333
#12 0x00007f480b87582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f47348aa700 (LWP 20252)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f480bf60a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x73f72a0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x75ca040, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f475959750b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x7003fd0, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f47595982bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x7003fd0, th=th@entry=0x7f4738011060, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f475959c4e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x7f4738011060, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7f4738011060, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007f475959c542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x7f4738011060, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#8  0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7f4738011060, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#9  0x00007f475959c542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x7f4738011060, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#10 0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7f4738011060, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#11 0x00007f475959c542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x7f4738011060, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#12 0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7f4738011060, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#13 0x00007f475959c542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x7f4738011060, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#14 0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7f4738011060, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#15 0x00007f475959a353 in ThreadWeaver::Thread::run (this=0x7f4738011060) at ../../src/thread.cpp:103
#16 0x00007f480bf5f7be in QThreadPrivate::start (arg=0x7f4738011060) at thread/qthread_unix.cpp:331
#17 0x00007f480b04c6ba in start_thread (arg=0x7f47348aa700) at pthread_create.c:333
#18 0x00007f480b87582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f47350ab700 (LWP 20251)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f480bf60a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x73f72a0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x75ca040, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f475959750b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x7003fd0, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f47595982bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x7003fd0, th=th@entry=0x7f4728002d90, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f475959c4e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x7f4728002d90, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7f4728002d90, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007f475959c542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x7f4728002d90, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#8  0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7f4728002d90, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#9  0x00007f475959c542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x7f4728002d90, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#10 0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7f4728002d90, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#11 0x00007f475959c542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x7f4728002d90, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#12 0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7f4728002d90, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#13 0x00007f475959a353 in ThreadWeaver::Thread::run (this=0x7f4728002d90) at ../../src/thread.cpp:103
#14 0x00007f480bf5f7be in QThreadPrivate::start (arg=0x7f4728002d90) at thread/qthread_unix.cpp:331
#15 0x00007f480b04c6ba in start_thread (arg=0x7f47350ab700) at pthread_create.c:333
#16 0x00007f480b87582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f47358ac700 (LWP 20250)):
[KCrash Handler]
#6  memcpy (__len=96, __src=0x18, __dest=0x7f4720003bd8) at /usr/include/x86_64-linux-gnu/bits/string3.h:53
#7  mdb_txn_renew0 (txn=txn@entry=0x7f4720003b50) at mdb.c:2719
#8  0x00007f47364d9f14 in mdb_txn_begin (env=0x7f4724003b60, parent=0x0, flags=131072, ret=0x7f47358ab908) at mdb.c:2850
#9  0x00007f4736b52bbe in Baloo::SearchStore::exec (this=this@entry=0x7f47358ab9f0, term=..., offset=0, limit=10, sortResults=<optimized out>) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/lib/searchstore.cpp:74
#10 0x00007f4736b41bc2 in Baloo::Query::exec (this=this@entry=0x7f47358abaa0) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/lib/query.cpp:210
#11 0x00007f4736da3f2f in SearchRunner::match (this=this@entry=0x736e340, context=..., type=..., category=...) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/runners/baloo/baloosearchrunner.cpp:98
#12 0x00007f4736da4879 in SearchRunner::match (this=0x736e340, context=...) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/runners/baloo/baloosearchrunner.cpp:160
#13 0x00007f475a082540 in Plasma::AbstractRunner::performMatch (this=0x736e340, localContext=...) at ../../src/abstractrunner.cpp:131
#14 0x00007f475959bc90 in ThreadWeaver::Executor::run (this=<optimized out>, job=..., thread=<optimized out>) at ../../src/executor.cpp:52
#15 0x00007f475959a7e0 in ThreadWeaver::Job::execute (this=<optimized out>, self=..., th=0x6c52470) at ../../src/job.cpp:83
#16 0x00007f475959a28a in ThreadWeaver::Thread::run (this=0x6c52470) at ../../src/thread.cpp:114
#17 0x00007f480bf5f7be in QThreadPrivate::start (arg=0x6c52470) at thread/qthread_unix.cpp:331
#18 0x00007f480b04c6ba in start_thread (arg=0x7f47358ac700) at pthread_create.c:333
#19 0x00007f480b87582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f472d8ac700 (LWP 20249)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f480bf60a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x73f72a0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x75ca040, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f475959750b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x7003fd0, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f47595982bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x7003fd0, th=th@entry=0x7f473800ceb0, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f475959c4e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x7f473800ceb0, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7f473800ceb0, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007f475959c542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x7f473800ceb0, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#8  0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7f473800ceb0, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#9  0x00007f475959c542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x7f473800ceb0, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#10 0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7f473800ceb0, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#11 0x00007f475959c542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x7f473800ceb0, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#12 0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7f473800ceb0, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#13 0x00007f475959c542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x7f473800ceb0, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#14 0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7f473800ceb0, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#15 0x00007f475959a353 in ThreadWeaver::Thread::run (this=0x7f473800ceb0) at ../../src/thread.cpp:103
#16 0x00007f480bf5f7be in QThreadPrivate::start (arg=0x7f473800ceb0) at thread/qthread_unix.cpp:331
#17 0x00007f480b04c6ba in start_thread (arg=0x7f472d8ac700) at pthread_create.c:333
#18 0x00007f480b87582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f47360ad700 (LWP 20248)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f480bf60a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x73f72a0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x75ca040, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f475959750b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x7003fd0, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f47595982bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x7003fd0, th=th@entry=0x54b12a0, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f475959c4e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x54b12a0, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x54b12a0, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007f475959c542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x54b12a0, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#8  0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x54b12a0, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#9  0x00007f475959a353 in ThreadWeaver::Thread::run (this=0x54b12a0) at ../../src/thread.cpp:103
#10 0x00007f480bf5f7be in QThreadPrivate::start (arg=0x54b12a0) at thread/qthread_unix.cpp:331
#11 0x00007f480b04c6ba in start_thread (arg=0x7f47360ad700) at pthread_create.c:333
#12 0x00007f480b87582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f473d2bb700 (LWP 20247)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f480bf60a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x73f72a0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x75ca040, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f475959750b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x7003fd0, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f47595982bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x7003fd0, th=th@entry=0x5861ff0, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f475959c4e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x5861ff0, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x5861ff0, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007f475959c542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x5861ff0, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#8  0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x5861ff0, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#9  0x00007f475959c542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x6eba3e0, th=0x5861ff0, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#10 0x00007f475959746d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x5861ff0, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#11 0x00007f475959a353 in ThreadWeaver::Thread::run (this=0x5861ff0) at ../../src/thread.cpp:103
#12 0x00007f480bf5f7be in QThreadPrivate::start (arg=0x5861ff0) at thread/qthread_unix.cpp:331
#13 0x00007f480b04c6ba in start_thread (arg=0x7f473d2bb700) at pthread_create.c:333
#14 0x00007f480b87582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f474a90c700 (LWP 2491)):
#0  0x00007f48085ffb67 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4808600307 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f480860049c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f480c1967eb in QEventDispatcherGlib::processEvents (this=0x7f47440008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f480c13db4a in QEventLoop::exec (this=this@entry=0x7f474a90bcc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f480bf5a834 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f474cdea7d7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f480bf5f7be in QThreadPrivate::start (arg=0x4ebf3e0) at thread/qthread_unix.cpp:331
#8  0x00007f480b04c6ba in start_thread (arg=0x7f474a90c700) at pthread_create.c:333
#9  0x00007f480b87582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f475bfff700 (LWP 2356)):
#0  0x00007f480b869b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f480860038c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f480860049c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f480c1967eb in QEventDispatcherGlib::processEvents (this=0x7f47540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f480c13db4a in QEventLoop::exec (this=this@entry=0x7f475bffec90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f480bf5a834 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f480f188ed6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f480bf5f7be in QThreadPrivate::start (arg=0x28e6cd0) at thread/qthread_unix.cpp:331
#8  0x00007f480b04c6ba in start_thread (arg=0x7f475bfff700) at pthread_create.c:333
#9  0x00007f480b87582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f47e2bee700 (LWP 2345)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f4810ba7bd4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f4810ba7c19 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f480b04c6ba in start_thread (arg=0x7f47e2bee700) at pthread_create.c:333
#4  0x00007f480b87582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f47e3fff700 (LWP 2344)):
#0  0x00007f480b869b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f480860038c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f480860049c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f480c1967eb in QEventDispatcherGlib::processEvents (this=0x7f47dc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f480c13db4a in QEventLoop::exec (this=this@entry=0x7f47e3ffece0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f480bf5a834 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f480e8023c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f480bf5f7be in QThreadPrivate::start (arg=0x2713070) at thread/qthread_unix.cpp:331
#8  0x00007f480b04c6ba in start_thread (arg=0x7f47e3fff700) at pthread_create.c:333
#9  0x00007f480b87582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f47ea435700 (LWP 2343)):
#0  0x00007f4808644a94 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f48085ff910 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f48086002bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f480860049c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f480c1967eb in QEventDispatcherGlib::processEvents (this=0x7f47e40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f480c13db4a in QEventLoop::exec (this=this@entry=0x7f47ea434ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f480bf5a834 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f480e8023c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f480bf5f7be in QThreadPrivate::start (arg=0x25b6dc0) at thread/qthread_unix.cpp:331
#9  0x00007f480b04c6ba in start_thread (arg=0x7f47ea435700) at pthread_create.c:333
#10 0x00007f480b87582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f47f9c51700 (LWP 2332)):
#0  0x00007f4808644a94 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4808600381 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f480860049c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f480c1967eb in QEventDispatcherGlib::processEvents (this=0x7f47ec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f480c13db4a in QEventLoop::exec (this=this@entry=0x7f47f9c50ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f480bf5a834 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f480e8023c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f480bf5f7be in QThreadPrivate::start (arg=0x20da480) at thread/qthread_unix.cpp:331
#8  0x00007f480b04c6ba in start_thread (arg=0x7f47f9c51700) at pthread_create.c:333
#9  0x00007f480b87582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f47fc45f700 (LWP 2323)):
#0  0x00007f480b869b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f480f92ec62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f480f9308d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f47fe5ad629 in QXcbEventReader::run (this=0x20165c0) at qxcbconnection.cpp:1253
#4  0x00007f480bf5f7be in QThreadPrivate::start (arg=0x20165c0) at thread/qthread_unix.cpp:331
#5  0x00007f480b04c6ba in start_thread (arg=0x7f47fc45f700) at pthread_create.c:333
#6  0x00007f480b87582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f48111428c0 (LWP 2321)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f480f92eeb9 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f480f930617 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f480f930721 in xcb_wait_for_reply () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#4  0x00007f480fb84a47 in _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#5  0x00007f4807a9fc2a in ?? () from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
#6  0x00007f4807a9ff67 in ?? () from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
#7  0x00007f47f319811b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#8  0x00007f47f3198631 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#9  0x00007f47f318b510 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#10 0x00007f480f1b949a in QSGBatchRenderer::Renderer::renderBatches() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f480f1bee82 in QSGBatchRenderer::Renderer::render() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f480f1cab6f in QSGRenderer::renderScene(QSGBindable const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007f480f1cb3bb in QSGRenderer::renderScene(unsigned int) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f480f1db87e in QSGRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007f480f2260db in QQuickWindowPrivate::renderSceneGraph(QSize const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007f480f1f619b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007f480f1f72a1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x00007f480cc4305c in QApplicationPrivate::notify_helper (this=this@entry=0x1fff6a0, receiver=receiver@entry=0x22d32b0, e=e@entry=0x7ffc6795ea30) at kernel/qapplication.cpp:3716
#19 0x00007f480cc48516 in QApplication::notify (this=0x7ffc6795edd0, receiver=0x22d32b0, e=0x7ffc6795ea30) at kernel/qapplication.cpp:3499
#20 0x00007f480c14038b in QCoreApplication::notifyInternal (this=0x7ffc6795edd0, receiver=0x22d32b0, event=event@entry=0x7ffc6795ea30) at kernel/qcoreapplication.cpp:965
#21 0x00007f480c1955ed in QCoreApplication::sendEvent (event=0x7ffc6795ea30, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#22 QTimerInfoList::activateTimers (this=0x1ff5280) at kernel/qtimerinfo_unix.cpp:637
#23 0x00007f480c195af1 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#24 0x00007f4808600197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f48086003f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f480860049c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f480c1967cf in QEventDispatcherGlib::processEvents (this=0x2036510, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#28 0x00007f480c13db4a in QEventLoop::exec (this=this@entry=0x7ffc6795ec70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#29 0x00007f480c145bec in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#30 0x00007f480c479bfc in QGuiApplication::exec () at kernel/qguiapplication.cpp:1542
#31 0x00007f480cc3f495 in QApplication::exec () at kernel/qapplication.cpp:2976
#32 0x0000000000432d4a in main (argc=2, argv=<optimized out>) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/shell/main.cpp:181

Possible duplicates by query: bug 379178, bug 372797, bug 364938.

Reported using DrKonqi
Comment 1 Nate Graham 2017-10-27 17:02:27 UTC 

*** This bug has been marked as a duplicate of bug 360946 ***