Application: plasmashell (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-62-generic x86_64
Distribution: Ubuntu 16.04.2 LTS

-- Information about the crash:
I shutdown the sddm service and cleared all things kde and baloo in .local and .cache. Other reports suggests this might be a database corruption, but this one I got with a new-ish profile

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
__pthread_self () at pthread_self.c:27
[Current thread is 1 (Thread 0x7effe97748c0 (LWP 1701))]

Thread 16 (Thread 0x7eff097fa700 (LWP 2132)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007effe457fa5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x49acb70) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4d31290, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007eff2cd9850b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x4e02b50, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007eff2cd992bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x4e02b50, th=th@entry=0x7eff04002f90, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007eff2cd9d4e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x7eff04002f90, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7eff04002f90, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007eff2cd9d542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x7eff04002f90, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#8  0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7eff04002f90, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#9  0x00007eff2cd9d542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x7eff04002f90, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#10 0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7eff04002f90, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#11 0x00007eff2cd9d542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x7eff04002f90, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#12 0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7eff04002f90, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#13 0x00007eff2cd9d542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x7eff04002f90, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#14 0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7eff04002f90, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#15 0x00007eff2cd9d542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x7eff04002f90, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#16 0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7eff04002f90, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#17 0x00007eff2cd9b353 in ThreadWeaver::Thread::run (this=0x7eff04002f90) at ../../src/thread.cpp:103
#18 0x00007effe457e7be in QThreadPrivate::start (arg=0x7eff04002f90) at thread/qthread_unix.cpp:331
#19 0x00007effe366b6ba in start_thread (arg=0x7eff097fa700) at pthread_create.c:333
#20 0x00007effe3e9482d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7eff09ffb700 (LWP 2131)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007effe457fa5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x49acb70) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4d31290, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007eff2cd9850b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x4e02b50, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007eff2cd992bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x4e02b50, th=th@entry=0x7eff00003190, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007eff2cd9d4e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x7eff00003190, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7eff00003190, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007eff2cd9d542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x7eff00003190, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#8  0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7eff00003190, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#9  0x00007eff2cd9b353 in ThreadWeaver::Thread::run (this=0x7eff00003190) at ../../src/thread.cpp:103
#10 0x00007effe457e7be in QThreadPrivate::start (arg=0x7eff00003190) at thread/qthread_unix.cpp:331
#11 0x00007effe366b6ba in start_thread (arg=0x7eff09ffb700) at pthread_create.c:333
#12 0x00007effe3e9482d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7eff0a7fc700 (LWP 2130)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007effe457fa5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x49acb70) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4d31290, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007eff2cd9850b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x4e02b50, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007eff2cd992bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x4e02b50, th=th@entry=0x7efefc002b90, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007eff2cd9d4e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x7efefc002b90, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7efefc002b90, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007eff2cd9d542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x7efefc002b90, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#8  0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7efefc002b90, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#9  0x00007eff2cd9b353 in ThreadWeaver::Thread::run (this=0x7efefc002b90) at ../../src/thread.cpp:103
#10 0x00007effe457e7be in QThreadPrivate::start (arg=0x7efefc002b90) at thread/qthread_unix.cpp:331
#11 0x00007effe366b6ba in start_thread (arg=0x7eff0a7fc700) at pthread_create.c:333
#12 0x00007effe3e9482d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7eff0affd700 (LWP 2129)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007effe457fa5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x49acb70) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4d31290, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007eff2cd9850b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x4e02b50, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007eff2cd992bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x4e02b50, th=th@entry=0x4b488e0, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007eff2cd9d4e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x4b488e0, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x4b488e0, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007eff2cd9d542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x4b488e0, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#8  0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x4b488e0, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#9  0x00007eff2cd9b353 in ThreadWeaver::Thread::run (this=0x4b488e0) at ../../src/thread.cpp:103
#10 0x00007effe457e7be in QThreadPrivate::start (arg=0x4b488e0) at thread/qthread_unix.cpp:331
#11 0x00007effe366b6ba in start_thread (arg=0x7eff0affd700) at pthread_create.c:333
#12 0x00007effe3e9482d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7eff0b7fe700 (LWP 2128)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007effe457fa5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x49acb70) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4d31290, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007eff2cd9850b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x4e02b50, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007eff2cd992bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x4e02b50, th=th@entry=0x7eff0c003190, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007eff2cd9d4e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x7eff0c003190, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7eff0c003190, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007eff2cd9d542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x7eff0c003190, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#8  0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7eff0c003190, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#9  0x00007eff2cd9d542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x7eff0c003190, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#10 0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x7eff0c003190, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#11 0x00007eff2cd9b353 in ThreadWeaver::Thread::run (this=0x7eff0c003190) at ../../src/thread.cpp:103
#12 0x00007effe457e7be in QThreadPrivate::start (arg=0x7eff0c003190) at thread/qthread_unix.cpp:331
#13 0x00007effe366b6ba in start_thread (arg=0x7eff0b7fe700) at pthread_create.c:333
#14 0x00007effe3e9482d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7eff0bfff700 (LWP 2127)):
[KCrash Handler]
#6  memcpy (__len=96, __src=0x18, __dest=0x7efefc003a08) at /usr/include/x86_64-linux-gnu/bits/string3.h:53
#7  mdb_txn_renew0 (txn=txn@entry=0x7efefc003980) at mdb.c:2719
#8  0x00007eff11bb0f14 in mdb_txn_begin (env=0x7efeec003160, parent=0x0, flags=131072, ret=0x7eff0bffe908) at mdb.c:2850
#9  0x00007eff12229bbe in Baloo::SearchStore::exec (this=this@entry=0x7eff0bffe9f0, term=..., offset=0, limit=10, sortResults=<optimized out>) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/lib/searchstore.cpp:74
#10 0x00007eff12218bc2 in Baloo::Query::exec (this=this@entry=0x7eff0bffeaa0) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/lib/query.cpp:210
#11 0x00007eff12439f2f in SearchRunner::match (this=this@entry=0x4d01e10, context=..., type=..., category=...) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/runners/baloo/baloosearchrunner.cpp:98
#12 0x00007eff1243a879 in SearchRunner::match (this=0x4d01e10, context=...) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/runners/baloo/baloosearchrunner.cpp:160
#13 0x00007eff2d883540 in Plasma::AbstractRunner::performMatch (this=0x4d01e10, localContext=...) at ../../src/abstractrunner.cpp:131
#14 0x00007eff2cd9cc90 in ThreadWeaver::Executor::run (this=<optimized out>, job=..., thread=<optimized out>) at ../../src/executor.cpp:52
#15 0x00007eff2cd9b7e0 in ThreadWeaver::Job::execute (this=<optimized out>, self=..., th=0x4d6c500) at ../../src/job.cpp:83
#16 0x00007eff2cd9b28a in ThreadWeaver::Thread::run (this=0x4d6c500) at ../../src/thread.cpp:114
#17 0x00007effe457e7be in QThreadPrivate::start (arg=0x4d6c500) at thread/qthread_unix.cpp:331
#18 0x00007effe366b6ba in start_thread (arg=0x7eff0bfff700) at pthread_create.c:333
#19 0x00007effe3e9482d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7eff10cb0700 (LWP 2126)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007effe457fa5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x49acb70) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4d31290, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007eff2cd9850b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x4e02b50, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007eff2cd992bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x4e02b50, th=th@entry=0x4c0f300, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007eff2cd9d4e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x4c0f300, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x4c0f300, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007eff2cd9d542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x4c0f300, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#8  0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x4c0f300, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#9  0x00007eff2cd9b353 in ThreadWeaver::Thread::run (this=0x4c0f300) at ../../src/thread.cpp:103
#10 0x00007effe457e7be in QThreadPrivate::start (arg=0x4c0f300) at thread/qthread_unix.cpp:331
#11 0x00007effe366b6ba in start_thread (arg=0x7eff10cb0700) at pthread_create.c:333
#12 0x00007effe3e9482d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7eff114b1700 (LWP 2125)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007effe457fa5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x49acb70) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4d31290, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007eff2cd9850b in ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked (this=this@entry=0x4e02b50, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007eff2cd992bf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait (this=0x4e02b50, th=th@entry=0x4d2e830, threadWasBusy=threadWasBusy@entry=false, suspendIfInactive=suspendIfInactive@entry=false, justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007eff2cd9d4e8 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x4d2e830, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:66
#6  0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x4d2e830, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#7  0x00007eff2cd9d542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x4d2e830, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#8  0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x4d2e830, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#9  0x00007eff2cd9d542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x4d2e830, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#10 0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x4d2e830, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#11 0x00007eff2cd9d542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x4d2e830, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#12 0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x4d2e830, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#13 0x00007eff2cd9d542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x4d2e830, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#14 0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x4d2e830, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#15 0x00007eff2cd9d542 in ThreadWeaver::WorkingHardState::applyForWork (this=0x4e02cd0, th=0x4d2e830, wasBusy=<optimized out>) at ../../src/workinghardstate.cpp:73
#16 0x00007eff2cd9846d in ThreadWeaver::Weaver::applyForWork (this=<optimized out>, th=0x4d2e830, wasBusy=<optimized out>) at ../../src/weaver.cpp:568
#17 0x00007eff2cd9b353 in ThreadWeaver::Thread::run (this=0x4d2e830) at ../../src/thread.cpp:103
#18 0x00007effe457e7be in QThreadPrivate::start (arg=0x4d2e830) at thread/qthread_unix.cpp:331
#19 0x00007effe366b6ba in start_thread (arg=0x7eff114b1700) at pthread_create.c:333
#20 0x00007effe3e9482d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7eff28593700 (LWP 1975)):
#0  0x00007effe462eaff in QElapsedTimer::clockType () at tools/qelapsedtimer_unix.cpp:150
#1  0x00007effe462eb49 in QElapsedTimer::isMonotonic () at tools/qelapsedtimer_unix.cpp:145
#2  0x00007effe47b377e in QTimerInfoList::repairTimersIfNeeded (this=0x7eff20002cd0) at kernel/qtimerinfo_unix.cpp:155
#3  0x00007effe47b37f3 in QTimerInfoList::timerWait (this=0x7eff20002cd0, tm=...) at kernel/qtimerinfo_unix.cpp:382
#4  0x00007effe47b4bce in timerSourcePrepareHelper (timeout=0x7eff28592b04, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#5  timerSourcePrepare (source=<optimized out>, timeout=0x7eff28592b04) at kernel/qeventdispatcher_glib.cpp:160
#6  0x00007effe0c1d91d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007effe0c1e2bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007effe0c1e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007effe47b57eb in QEventDispatcherGlib::processEvents (this=0x7eff200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#10 0x00007effe475cb4a in QEventLoop::exec (this=this@entry=0x7eff28592cc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#11 0x00007effe4579834 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#12 0x00007eff2aa717d7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#13 0x00007effe457e7be in QThreadPrivate::start (arg=0x39501e0) at thread/qthread_unix.cpp:331
#14 0x00007effe366b6ba in start_thread (arg=0x7eff28593700) at pthread_create.c:333
#15 0x00007effe3e9482d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7effb8984700 (LWP 1800)):
#0  0x00007effe3e88b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007effe0c1e38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007effe0c1e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007effe47b57eb in QEventDispatcherGlib::processEvents (this=0x7eff300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007effe475cb4a in QEventLoop::exec (this=this@entry=0x7effb8983c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007effe4579834 in QThread::exec (this=this@entry=0x1ad1a90) at thread/qthread.cpp:503
#6  0x00007effe77a7ed6 in QQuickPixmapReader::run (this=0x1ad1a90) at util/qquickpixmapcache.cpp:817
#7  0x00007effe457e7be in QThreadPrivate::start (arg=0x1ad1a90) at thread/qthread_unix.cpp:331
#8  0x00007effe366b6ba in start_thread (arg=0x7effb8984700) at pthread_create.c:333
#9  0x00007effe3e9482d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7effbb1d0700 (LWP 1792)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007effe91c6bd4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007effe91c6c19 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007effe366b6ba in start_thread (arg=0x7effbb1d0700) at pthread_create.c:333
#4  0x00007effe3e9482d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7effc0d12700 (LWP 1782)):
#0  0x00007effe3e8469d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007effe0c616f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007effe0c1de74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007effe0c1e330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007effe0c1e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007effe47b57eb in QEventDispatcherGlib::processEvents (this=0x7effb40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007effe475cb4a in QEventLoop::exec (this=this@entry=0x7effc0d11ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007effe4579834 in QThread::exec (this=this@entry=0x18d3320) at thread/qthread.cpp:503
#8  0x00007effe6e213c5 in QQmlThreadPrivate::run (this=0x18d3320) at qml/ftw/qqmlthread.cpp:141
#9  0x00007effe457e7be in QThreadPrivate::start (arg=0x18d3320) at thread/qthread_unix.cpp:331
#10 0x00007effe366b6ba in start_thread (arg=0x7effc0d12700) at pthread_create.c:333
#11 0x00007effe3e9482d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7effc2bf1700 (LWP 1771)):
#0  0x00007effe3e88b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007effe0c1e38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007effe0c1e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007effe47b57eb in QEventDispatcherGlib::processEvents (this=0x7effbc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007effe475cb4a in QEventLoop::exec (this=this@entry=0x7effc2bf0ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007effe4579834 in QThread::exec (this=this@entry=0x17b5e00) at thread/qthread.cpp:503
#6  0x00007effe6e213c5 in QQmlThreadPrivate::run (this=0x17b5e00) at qml/ftw/qqmlthread.cpp:141
#7  0x00007effe457e7be in QThreadPrivate::start (arg=0x17b5e00) at thread/qthread_unix.cpp:331
#8  0x00007effe366b6ba in start_thread (arg=0x7effc2bf1700) at pthread_create.c:333
#9  0x00007effe3e9482d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7effce1fc700 (LWP 1726)):
#0  0x00007effe0c62a70 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007effe0c1db41 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007effe0c1e307 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007effe0c1e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007effe47b57eb in QEventDispatcherGlib::processEvents (this=0x7effc80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007effe475cb4a in QEventLoop::exec (this=this@entry=0x7effce1fbce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007effe4579834 in QThread::exec (this=this@entry=0x14fe570) at thread/qthread.cpp:503
#7  0x00007effe6e213c5 in QQmlThreadPrivate::run (this=0x14fe570) at qml/ftw/qqmlthread.cpp:141
#8  0x00007effe457e7be in QThreadPrivate::start (arg=0x14fe570) at thread/qthread_unix.cpp:331
#9  0x00007effe366b6ba in start_thread (arg=0x7effce1fc700) at pthread_create.c:333
#10 0x00007effe3e9482d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7effd4a8e700 (LWP 1722)):
#0  0x00007effe3e88b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007effe7f4dc62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007effe7f4f8d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007effd6bdc629 in QXcbEventReader::run (this=0x14348b0) at qxcbconnection.cpp:1253
#4  0x00007effe457e7be in QThreadPrivate::start (arg=0x14348b0) at thread/qthread_unix.cpp:331
#5  0x00007effe366b6ba in start_thread (arg=0x7effd4a8e700) at pthread_create.c:333
#6  0x00007effe3e9482d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7effe97748c0 (LWP 1701)):
#0  __pthread_self () at pthread_self.c:27
#1  0x00007effe478d636 in QMetaObject::activate (sender=sender@entry=0x14521d0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3607
#2  0x00007effe478e537 in QMetaObject::activate (sender=sender@entry=0x14521d0, m=m@entry=0x7effe49a8440 <QAbstractEventDispatcher::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3578
#3  0x00007effe480c9a0 in QAbstractEventDispatcher::aboutToBlock (this=this@entry=0x14521d0) at .moc/moc_qabstracteventdispatcher.cpp:135
#4  0x00007effe47b579e in QEventDispatcherGlib::processEvents (this=0x14521d0, flags=...) at kernel/qeventdispatcher_glib.cpp:405
#5  0x00007effe475cb4a in QEventLoop::exec (this=this@entry=0x7ffcd8f0ee60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007effe4764bec in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#7  0x00007effe4a98bfc in QGuiApplication::exec () at kernel/qguiapplication.cpp:1542
#8  0x00007effe525e495 in QApplication::exec () at kernel/qapplication.cpp:2976
#9  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 372797, bug 364938, bug 363382, bug 360154.

Reported using DrKonqi