https://bugs.kde.org/show_bug.cgi?id=361919

            Bug ID: 361919
           Summary: krunner crashes when attempting to start konsole after
                    restarting plasma desktop
           Product: krunner
           Version: 5.5.4
          Platform: Debian unstable
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: m...@vhanda.in
          Reporter: arthur.ma...@internode.on.net

Application: krunner (5.5.4)

Qt Version: 5.5.1
Operating System: Linux 4.6.0-rc3+ x86_64
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
after starting plasma desktop I attempted to start konsole with alt-F2 and
krunner crashed. I was able to use alt-F2 again to successfully start konsole
with krunner.

The crash can be reproduced sometimes.

-- Backtrace:
Application: krunner (krunner), 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 0x7f4dc772c7c0 (LWP 16610))]

Thread 12 (Thread 0x7f4dc706a700 (LWP 16611)):
#0  0x00000030004dfe4d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x000000300300a382 in _xcb_conn_wait (__timeout=-1, __nfds=1,
__fds=0x7f4dc7069d00) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  0x000000300300a382 in _xcb_conn_wait (c=c@entry=0xe20470,
cond=cond@entry=0xe204b0, vector=vector@entry=0x0, count=count@entry=0x0) at
../../src/xcb_conn.c:459
#3  0x000000300300bff7 in xcb_wait_for_event (c=0xe20470) at
../../src/xcb_in.c:693
#4  0x00007f4dc74c9789 in QXcbEventReader::run() (this=0xe334c0) at
qxcbconnection.cpp:1230
#5  0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0xe334c0) at
thread/qthread_unix.cpp:331
#6  0x0000003001007454 in start_thread (arg=0x7f4dc706a700) at
pthread_create.c:334
#7  0x00000030004e8ecd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f4dbdc63700 (LWP 16620)):
#0  0x000000300100d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f4dc525a213 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#2  0x00007f4dc5259937 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#3  0x0000003001007454 in start_thread (arg=0x7f4dbdc63700) at
pthread_create.c:334
#4  0x00000030004e8ecd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f4dbc67e700 (LWP 16641)):
#0  0x00000030004dbe2d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x0000003003c8d6f0 in g_wakeup_acknowledge (__nbytes=16,
__buf=0x7f4dbc67dbe0, __fd=<optimized out>) at
/usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  0x0000003003c8d6f0 in g_wakeup_acknowledge (wakeup=0x7f4dc00015b0) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gwakeup.c:210
#3  0x0000003003c49e14 in g_main_context_check
(context=context@entry=0x7f4db4000990, max_priority=2147483647,
fds=fds@entry=0x7f4db4003070, n_fds=n_fds@entry=1) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3632
#4  0x0000003003c4a2d0 in g_main_context_iterate
(context=context@entry=0x7f4db4000990, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3837
#5  0x0000003003c4a43c in g_main_context_iteration (context=0x7f4db4000990,
may_block=may_block@entry=1) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#6  0x00000030176dca5b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f4db40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x0000003017683d6a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f4dbc67dde0, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:204
#8  0x00000030174a0854 in QThread::exec() (this=<optimized out>) at
thread/qthread.cpp:503
#9  0x0000003046ed5105 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x1192910) at
thread/qthread_unix.cpp:331
#11 0x0000003001007454 in start_thread (arg=0x7f4dbc67e700) at
pthread_create.c:334
#12 0x00000030004e8ecd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f4db2359700 (LWP 16866)):
#0  0x000000300100d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0x11a5fc0) at
thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(this=<optimized out>, mutex=0x11eeca0, time=time@entry=18446744073709551615)
at thread/qwaitcondition_unix.cpp:208
#3  0x00007f4dba48102b in
ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*)
(this=this@entry=0x10f1040, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f4dba481ddf in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) (this=0x10f1040, th=th@entry=0x1a3ec50,
threadWasBusy=threadWasBusy@entry=false,
suspendIfInactive=suspendIfInactive@entry=false,
justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f4dba486038 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0x10d2e50, th=0x1a3ec50, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:66
#6  0x00007f4dba480f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x1a3ec50, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#7  0x00007f4dba486092 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0x10d2e50, th=0x1a3ec50, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:73
#8  0x00007f4dba480f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x1a3ec50, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#9  0x00007f4dba483ea3 in ThreadWeaver::Thread::run() (this=0x1a3ec50) at
../../src/thread.cpp:103
#10 0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x1a3ec50) at
thread/qthread_unix.cpp:331
#11 0x0000003001007454 in start_thread (arg=0x7f4db2359700) at
pthread_create.c:334
#12 0x00000030004e8ecd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f4db1b58700 (LWP 16867)):
#0  0x000000300100d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0x11a5fc0) at
thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(this=<optimized out>, mutex=0x11eeca0, time=time@entry=18446744073709551615)
at thread/qwaitcondition_unix.cpp:208
#3  0x00007f4dba48102b in
ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*)
(this=this@entry=0x10f1040, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f4dba481ddf in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) (this=0x10f1040, th=th@entry=0x1a47dd0,
threadWasBusy=threadWasBusy@entry=false,
suspendIfInactive=suspendIfInactive@entry=false,
justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f4dba486038 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0x10d2e50, th=0x1a47dd0, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:66
#6  0x00007f4dba480f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x1a47dd0, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#7  0x00007f4dba486092 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0x10d2e50, th=0x1a47dd0, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:73
#8  0x00007f4dba480f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x1a47dd0, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#9  0x00007f4dba483ea3 in ThreadWeaver::Thread::run() (this=0x1a47dd0) at
../../src/thread.cpp:103
#10 0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x1a47dd0) at
thread/qthread_unix.cpp:331
#11 0x0000003001007454 in start_thread (arg=0x7f4db1b58700) at
pthread_create.c:334
#12 0x00000030004e8ecd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f4db1357700 (LWP 16868)):
[KCrash Handler]
#6  0x00000030d5e03b44 in  () at /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#7  0x00000030d5e04d34 in mdb_txn_begin () at
/usr/lib/x86_64-linux-gnu/liblmdb.so.0
#8  0x00000030c2a2101e in  () at /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#9  0x00000030c2a0fff2 in Baloo::Query::exec() () at
/usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#10 0x00007f4db2b86f2f in  () at
/usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_baloosearchrunner.so
#11 0x00007f4db2b87879 in  () at
/usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_baloosearchrunner.so
#12 0x00007f4dba6a1f40 in
Plasma::AbstractRunner::performMatch(Plasma::RunnerContext&) (this=0x1b4acf0,
localContext=...) at ../../src/abstractrunner.cpp:131
#13 0x00007f4dba4857e0 in
ThreadWeaver::Executor::run(QSharedPointer<ThreadWeaver::JobInterface> const&,
ThreadWeaver::Thread*) (this=<optimized out>, job=..., thread=<optimized out>)
at ../../src/executor.cpp:52
#14 0x00007f4dba484330 in
ThreadWeaver::Job::execute(QSharedPointer<ThreadWeaver::JobInterface> const&,
ThreadWeaver::Thread*) (this=<optimized out>, self=..., th=0x1a34aa0) at
../../src/job.cpp:83
#15 0x00007f4dba483dda in ThreadWeaver::Thread::run() (this=0x1a34aa0) at
../../src/thread.cpp:114
#16 0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x1a34aa0) at
thread/qthread_unix.cpp:331
#17 0x0000003001007454 in start_thread (arg=0x7f4db1357700) at
pthread_create.c:334
#18 0x00000030004e8ecd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f4db0b56700 (LWP 16869)):
#0  0x000000300100d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0x11a5fc0) at
thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(this=<optimized out>, mutex=0x11eeca0, time=time@entry=18446744073709551615)
at thread/qwaitcondition_unix.cpp:208
#3  0x00007f4dba48102b in
ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*)
(this=this@entry=0x10f1040, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f4dba481ddf in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) (this=0x10f1040, th=th@entry=0x7f4dac002d90,
threadWasBusy=threadWasBusy@entry=false,
suspendIfInactive=suspendIfInactive@entry=false,
justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f4dba486038 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0x10d2e50, th=0x7f4dac002d90, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:66
#6  0x00007f4dba480f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f4dac002d90, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#7  0x00007f4dba486092 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0x10d2e50, th=0x7f4dac002d90, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:73
#8  0x00007f4dba480f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f4dac002d90, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#9  0x00007f4dba483ea3 in ThreadWeaver::Thread::run() (this=0x7f4dac002d90) at
../../src/thread.cpp:103
#10 0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x7f4dac002d90) at
thread/qthread_unix.cpp:331
#11 0x0000003001007454 in start_thread (arg=0x7f4db0b56700) at
pthread_create.c:334
#12 0x00000030004e8ecd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f4dabfff700 (LWP 16870)):
#0  0x000000300100d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0x11a5fc0) at
thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(this=<optimized out>, mutex=0x11eeca0, time=time@entry=18446744073709551615)
at thread/qwaitcondition_unix.cpp:208
#3  0x00007f4dba48102b in
ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*)
(this=this@entry=0x10f1040, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f4dba481ddf in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) (this=0x10f1040, th=th@entry=0x15626d0,
threadWasBusy=threadWasBusy@entry=false,
suspendIfInactive=suspendIfInactive@entry=false,
justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f4dba486038 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0x10d2e50, th=0x15626d0, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:66
#6  0x00007f4dba480f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x15626d0, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#7  0x00007f4dba486092 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0x10d2e50, th=0x15626d0, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:73
#8  0x00007f4dba480f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x15626d0, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#9  0x00007f4dba483ea3 in ThreadWeaver::Thread::run() (this=0x15626d0) at
../../src/thread.cpp:103
#10 0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x15626d0) at
thread/qthread_unix.cpp:331
#11 0x0000003001007454 in start_thread (arg=0x7f4dabfff700) at
pthread_create.c:334
#12 0x00000030004e8ecd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f4dab7fe700 (LWP 16871)):
#0  0x000000300100d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0x11a5fc0) at
thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(this=<optimized out>, mutex=0x11eeca0, time=time@entry=18446744073709551615)
at thread/qwaitcondition_unix.cpp:208
#3  0x00007f4dba48102b in
ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*)
(this=this@entry=0x10f1040, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f4dba481ddf in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) (this=0x10f1040, th=th@entry=0x7f4da4002f90,
threadWasBusy=threadWasBusy@entry=false,
suspendIfInactive=suspendIfInactive@entry=false,
justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f4dba486038 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0x10d2e50, th=0x7f4da4002f90, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:66
#6  0x00007f4dba480f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f4da4002f90, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#7  0x00007f4dba486092 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0x10d2e50, th=0x7f4da4002f90, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:73
#8  0x00007f4dba480f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f4da4002f90, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#9  0x00007f4dba483ea3 in ThreadWeaver::Thread::run() (this=0x7f4da4002f90) at
../../src/thread.cpp:103
#10 0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x7f4da4002f90) at
thread/qthread_unix.cpp:331
#11 0x0000003001007454 in start_thread (arg=0x7f4dab7fe700) at
pthread_create.c:334
#12 0x00000030004e8ecd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f4daaffd700 (LWP 16872)):
#0  0x000000300100d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0x11a5fc0) at
thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(this=<optimized out>, mutex=0x11eeca0, time=time@entry=18446744073709551615)
at thread/qwaitcondition_unix.cpp:208
#3  0x00007f4dba48102b in
ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*)
(this=this@entry=0x10f1040, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f4dba481ddf in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) (this=0x10f1040, th=th@entry=0x7f4da0002f90,
threadWasBusy=threadWasBusy@entry=false,
suspendIfInactive=suspendIfInactive@entry=false,
justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f4dba486038 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0x10d2e50, th=0x7f4da0002f90, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:66
#6  0x00007f4dba480f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f4da0002f90, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#7  0x00007f4dba486092 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0x10d2e50, th=0x7f4da0002f90, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:73
#8  0x00007f4dba480f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f4da0002f90, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#9  0x00007f4dba483ea3 in ThreadWeaver::Thread::run() (this=0x7f4da0002f90) at
../../src/thread.cpp:103
#10 0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x7f4da0002f90) at
thread/qthread_unix.cpp:331
#11 0x0000003001007454 in start_thread (arg=0x7f4daaffd700) at
pthread_create.c:334
#12 0x00000030004e8ecd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f4daa7fc700 (LWP 16873)):
#0  0x000000300100d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0x11a5fc0) at
thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(this=<optimized out>, mutex=0x11eeca0, time=time@entry=18446744073709551615)
at thread/qwaitcondition_unix.cpp:208
#3  0x00007f4dba48102b in
ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*)
(this=this@entry=0x10f1040, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f4dba481ddf in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) (this=0x10f1040, th=th@entry=0x7f4da40034e0,
threadWasBusy=threadWasBusy@entry=false,
suspendIfInactive=suspendIfInactive@entry=false,
justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f4dba486038 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0x10d2e50, th=0x7f4da40034e0, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:66
#6  0x00007f4dba480f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f4da40034e0, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#7  0x00007f4dba486092 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0x10d2e50, th=0x7f4da40034e0, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:73
#8  0x00007f4dba480f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f4da40034e0, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#9  0x00007f4dba483ea3 in ThreadWeaver::Thread::run() (this=0x7f4da40034e0) at
../../src/thread.cpp:103
#10 0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x7f4da40034e0) at
thread/qthread_unix.cpp:331
#11 0x0000003001007454 in start_thread (arg=0x7f4daa7fc700) at
pthread_create.c:334
#12 0x00000030004e8ecd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f4dc772c7c0 (LWP 16610)):
#0  0x000000300100d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000300300a5d9 in _xcb_conn_wait (c=c@entry=0xe20470,
cond=cond@entry=0x7ffd2a56b530, vector=vector@entry=0x0, count=count@entry=0x0)
at ../../src/xcb_conn.c:427
#2  0x000000300300bd37 in wait_for_reply (c=c@entry=0xe20470, request=1007,
e=e@entry=0x7ffd2a56b600) at ../../src/xcb_in.c:516
#3  0x000000300300be41 in xcb_wait_for_reply (c=c@entry=0xe20470, request=1007,
e=e@entry=0x7ffd2a56b600) at ../../src/xcb_in.c:546
#4  0x0000003003843317 in _XReply (dpy=0xe1f0e0, rep=0x7ffd2a56b680, extra=0,
discard=0) at ../../src/xcb_io.c:602
#5  0x0000003012e442fa in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#6  0x0000003012e44637 in  () at /usr/lib/x86_64-linux-gnu/libGL.so.1
#7  0x00007f4dc4ec889a in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#8  0x00007f4dc4ec50ec in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#9  0x00007f4dc4deb53e in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#10 0x00007f4dc4decaa9 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#11 0x00007f4dc4d91b92 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#12 0x00007f4dc4d99be1 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#13 0x0000003047d2925a in QSGBatchRenderer::Renderer::renderBatches() () at
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x0000003047d2ec42 in QSGBatchRenderer::Renderer::render() () at
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x0000003047d3a93f in QSGRenderer::renderScene(QSGBindable const&) () at
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x0000003047d3b18b in QSGRenderer::renderScene(unsigned int) () at
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x0000003047d4b68e in QSGRenderContext::renderNextFrame(QSGRenderer*,
unsigned int) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x0000003047d9566b in QQuickWindowPrivate::renderSceneGraph(QSize const&)
() at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x0000003047d6603b in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x0000003047d67141 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x000000301db5affc in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=this@entry=0xe11d10, receiver=receiver@entry=0xf7eec0,
e=e@entry=0x7ffd2a56c220) at kernel/qapplication.cpp:3716
#22 0x000000301db604b6 in QApplication::notify(QObject*, QEvent*)
(this=0x7ffd2a56c530, receiver=0xf7eec0, e=0x7ffd2a56c220) at
kernel/qapplication.cpp:3499
#23 0x00000030176865ab in QCoreApplication::notifyInternal(QObject*, QEvent*)
(this=0x7ffd2a56c530, receiver=0xf7eec0, event=event@entry=0x7ffd2a56c220) at
kernel/qcoreapplication.cpp:965
#24 0x00000030176db85d in QTimerInfoList::activateTimers()
(event=0x7ffd2a56c220, receiver=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#25 0x00000030176db85d in QTimerInfoList::activateTimers() (this=0xe5f340) at
kernel/qtimerinfo_unix.cpp:637
#26 0x00000030176dbd99 in idleTimerSourceDispatch(GSource*, GSourceFunc,
gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#27 0x00000030176dbd99 in idleTimerSourceDispatch(GSource*, GSourceFunc,
gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:224
#28 0x0000003003c4a137 in g_main_context_dispatch (context=0x7f4dc00016f0) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3154
#29 0x0000003003c4a137 in g_main_context_dispatch
(context=context@entry=0x7f4dc00016f0) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3769
#30 0x0000003003c4a390 in g_main_context_iterate
(context=context@entry=0x7f4dc00016f0, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3840
#31 0x0000003003c4a43c in g_main_context_iteration (context=0x7f4dc00016f0,
may_block=may_block@entry=1) at
/build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#32 0x00000030176dca5b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0xe68590, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#33 0x0000003017683d6a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7ffd2a56c460, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:204
#34 0x000000301768be0c in QCoreApplication::exec() () at
kernel/qcoreapplication.cpp:1229
#35 0x0000000000407671 in main ()

Possible duplicates by query: bug 361866, bug 361628.

Reported using DrKonqi

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