https://bugs.kde.org/show_bug.cgi?id=360754

            Bug ID: 360754
           Summary: krunner crash when attempting to start konsole with
                    alt-F2
           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 4.5.0+ x86_64
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
when starting KDE plasma for the first time after a reboot, krunner crashed
when attempting to start konsole with alt-F2

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 0x7f29b63b87c0 (LWP 4740))]

Thread 12 (Thread 0x7f29b5cf6700 (LWP 4753)):
#0  0x00000030004dfe4d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x000000300340a382 in _xcb_conn_wait (__timeout=-1, __nfds=1,
__fds=0x7f29b5cf5d00) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  0x000000300340a382 in _xcb_conn_wait (c=c@entry=0x859470,
cond=cond@entry=0x8594b0, vector=vector@entry=0x0, count=count@entry=0x0) at
../../src/xcb_conn.c:459
#3  0x000000300340bff7 in xcb_wait_for_event (c=0x859470) at
../../src/xcb_in.c:693
#4  0x00007f29b6155789 in QXcbEventReader::run() (this=0x86c4c0) at
qxcbconnection.cpp:1230
#5  0x00000030180a57fe in QThreadPrivate::start(void*) (arg=0x86c4c0) at
thread/qthread_unix.cpp:331
#6  0x0000003000c07454 in start_thread (arg=0x7f29b5cf6700) at
pthread_create.c:334
#7  0x00000030004e8edd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f29acd87700 (LWP 4799)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f29af9b3c43 in radeon_drm_cs_emit_ioctl (mtx=0x950280,
cond=0x9502a8) at ../../../../../../../include/c11/threads_posix.h:159
#2  0x00007f29af9b3c43 in radeon_drm_cs_emit_ioctl (sema=0x950280) at
../../../../../../../src/gallium/auxiliary/os/os_thread.h:259
#3  0x00007f29af9b3c43 in radeon_drm_cs_emit_ioctl (param=param@entry=0x94ff30)
at ../../../../../../../src/gallium/winsys/radeon/drm/radeon_drm_winsys.c:653
#4  0x00007f29af9b3397 in impl_thrd_routine (p=<optimized out>) at
../../../../../../../include/c11/threads_posix.h:87
#5  0x0000003000c07454 in start_thread (arg=0x7f29acd87700) at
pthread_create.c:334
#6  0x00000030004e8edd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f29ab375700 (LWP 4804)):
#0  0x000000300448e895 in g_mutex_lock (mutex=mutex@entry=0x7f29a4000990) at
/build/glib2.0-2.46.2/./glib/gthread-posix.c:1338
#1  0x0000003004449981 in g_main_context_query
(context=context@entry=0x7f29a4000990, max_priority=2147483647,
timeout=timeout@entry=0x7f29ab374cb4, fds=fds@entry=0x7f29a4003070,
n_fds=n_fds@entry=1) at /build/glib2.0-2.46.2/./glib/gmain.c:3544
#2  0x000000300444a147 in g_main_context_iterate
(context=context@entry=0x7f29a4000990, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
/build/glib2.0-2.46.2/./glib/gmain.c:3822
#3  0x000000300444a2dc in g_main_context_iteration (context=0x7f29a4000990,
may_block=may_block@entry=1) at /build/glib2.0-2.46.2/./glib/gmain.c:3901
#4  0x00000030182dca5b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f29a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x0000003018283d6a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f29ab374de0, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:204
#6  0x00000030180a0854 in QThread::exec() (this=<optimized out>) at
thread/qthread.cpp:503
#7  0x00000030406d5105 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00000030180a57fe in QThreadPrivate::start(void*) (arg=0xbf1e60) at
thread/qthread_unix.cpp:331
#9  0x0000003000c07454 in start_thread (arg=0x7f29ab375700) at
pthread_create.c:334
#10 0x00000030004e8edd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f29a0f27700 (LWP 4961)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030180a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0xbc44a0) at
thread/qwaitcondition_unix.cpp:136
#2  0x00000030180a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(this=<optimized out>, mutex=0xaefc60, time=time@entry=18446744073709551615) at
thread/qwaitcondition_unix.cpp:208
#3  0x00007f29a917802b in
ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*)
(this=this@entry=0xb2ac90, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f29a9178ddf in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) (this=0xb2ac90, th=th@entry=0x1450ba0,
threadWasBusy=threadWasBusy@entry=false,
suspendIfInactive=suspendIfInactive@entry=false,
justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f29a917d038 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0xb62c70, th=0x1450ba0, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:66
#6  0x00007f29a9177f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x1450ba0, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#7  0x00007f29a917d092 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0xb62c70, th=0x1450ba0, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:73
#8  0x00007f29a9177f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x1450ba0, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#9  0x00007f29a917aea3 in ThreadWeaver::Thread::run() (this=0x1450ba0) at
../../src/thread.cpp:103
#10 0x00000030180a57fe in QThreadPrivate::start(void*) (arg=0x1450ba0) at
thread/qthread_unix.cpp:331
#11 0x0000003000c07454 in start_thread (arg=0x7f29a0f27700) at
pthread_create.c:334
#12 0x00000030004e8edd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f2998726700 (LWP 4962)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030180a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0xbc44a0) at
thread/qwaitcondition_unix.cpp:136
#2  0x00000030180a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(this=<optimized out>, mutex=0xaefc60, time=time@entry=18446744073709551615) at
thread/qwaitcondition_unix.cpp:208
#3  0x00007f29a917802b in
ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*)
(this=this@entry=0xb2ac90, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f29a9178ddf in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) (this=0xb2ac90, th=th@entry=0x1450c60,
threadWasBusy=threadWasBusy@entry=false,
suspendIfInactive=suspendIfInactive@entry=false,
justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f29a917d038 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0xb62c70, th=0x1450c60, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:66
#6  0x00007f29a9177f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x1450c60, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#7  0x00007f29a917d092 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0xb62c70, th=0x1450c60, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:73
#8  0x00007f29a9177f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x1450c60, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#9  0x00007f29a917aea3 in ThreadWeaver::Thread::run() (this=0x1450c60) at
../../src/thread.cpp:103
#10 0x00000030180a57fe in QThreadPrivate::start(void*) (arg=0x1450c60) at
thread/qthread_unix.cpp:331
#11 0x0000003000c07454 in start_thread (arg=0x7f2998726700) at
pthread_create.c:334
#12 0x00000030004e8edd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f299bfff700 (LWP 4963)):
[KCrash Handler]
#6  0x00000030dd6039fa in  () at /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#7  0x00000030dd604db4 in mdb_txn_begin () at
/usr/lib/x86_64-linux-gnu/liblmdb.so.0
#8  0x00000030c182101e in  () at /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#9  0x00000030c180fff2 in Baloo::Query::exec() () at
/usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#10 0x00007f29a8791f2f in  () at
/usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_baloosearchrunner.so
#11 0x00007f29a8792879 in  () at
/usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_baloosearchrunner.so
#12 0x00007f29a9398f40 in
Plasma::AbstractRunner::performMatch(Plasma::RunnerContext&) (this=0x147fb00,
localContext=...) at ../../src/abstractrunner.cpp:131
#13 0x00007f29a917c7e0 in
ThreadWeaver::Executor::run(QSharedPointer<ThreadWeaver::JobInterface> const&,
ThreadWeaver::Thread*) (this=<optimized out>, job=..., thread=<optimized out>)
at ../../src/executor.cpp:52
#14 0x00007f29a917b330 in
ThreadWeaver::Job::execute(QSharedPointer<ThreadWeaver::JobInterface> const&,
ThreadWeaver::Thread*) (this=<optimized out>, self=..., th=0x1427f00) at
../../src/job.cpp:83
#15 0x00007f29a917adda in ThreadWeaver::Thread::run() (this=0x1427f00) at
../../src/thread.cpp:114
#16 0x00000030180a57fe in QThreadPrivate::start(void*) (arg=0x1427f00) at
thread/qthread_unix.cpp:331
#17 0x0000003000c07454 in start_thread (arg=0x7f299bfff700) at
pthread_create.c:334
#18 0x00000030004e8edd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f299b7fe700 (LWP 4964)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030180a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0xbc44a0) at
thread/qwaitcondition_unix.cpp:136
#2  0x00000030180a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(this=<optimized out>, mutex=0xaefc60, time=time@entry=18446744073709551615) at
thread/qwaitcondition_unix.cpp:208
#3  0x00007f29a917802b in
ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*)
(this=this@entry=0xb2ac90, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f29a9178ddf in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) (this=0xb2ac90, th=th@entry=0x7f299c002d90,
threadWasBusy=threadWasBusy@entry=false,
suspendIfInactive=suspendIfInactive@entry=false,
justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f29a917d038 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0xb62c70, th=0x7f299c002d90, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:66
#6  0x00007f29a9177f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f299c002d90, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#7  0x00007f29a917d092 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0xb62c70, th=0x7f299c002d90, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:73
#8  0x00007f29a9177f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f299c002d90, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#9  0x00007f29a917aea3 in ThreadWeaver::Thread::run() (this=0x7f299c002d90) at
../../src/thread.cpp:103
#10 0x00000030180a57fe in QThreadPrivate::start(void*) (arg=0x7f299c002d90) at
thread/qthread_unix.cpp:331
#11 0x0000003000c07454 in start_thread (arg=0x7f299b7fe700) at
pthread_create.c:334
#12 0x00000030004e8edd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f299affd700 (LWP 4965)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030180a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0xbc44a0) at
thread/qwaitcondition_unix.cpp:136
#2  0x00000030180a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(this=<optimized out>, mutex=0xaefc60, time=time@entry=18446744073709551615) at
thread/qwaitcondition_unix.cpp:208
#3  0x00007f29a917802b in
ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*)
(this=this@entry=0xb2ac90, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f29a9178ddf in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) (this=0xb2ac90, th=th@entry=0x7f2990002f90,
threadWasBusy=threadWasBusy@entry=false,
suspendIfInactive=suspendIfInactive@entry=false,
justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f29a917d038 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0xb62c70, th=0x7f2990002f90, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:66
#6  0x00007f29a9177f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f2990002f90, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#7  0x00007f29a917d092 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0xb62c70, th=0x7f2990002f90, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:73
#8  0x00007f29a9177f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f2990002f90, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#9  0x00007f29a917aea3 in ThreadWeaver::Thread::run() (this=0x7f2990002f90) at
../../src/thread.cpp:103
#10 0x00000030180a57fe in QThreadPrivate::start(void*) (arg=0x7f2990002f90) at
thread/qthread_unix.cpp:331
#11 0x0000003000c07454 in start_thread (arg=0x7f299affd700) at
pthread_create.c:334
#12 0x00000030004e8edd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f299a7fc700 (LWP 4966)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030180a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0xbc44a0) at
thread/qwaitcondition_unix.cpp:136
#2  0x00000030180a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(this=<optimized out>, mutex=0xaefc60, time=time@entry=18446744073709551615) at
thread/qwaitcondition_unix.cpp:208
#3  0x00007f29a917802b in
ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*)
(this=this@entry=0xb2ac90, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f29a9178ddf in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) (this=0xb2ac90, th=th@entry=0x7f299c003420,
threadWasBusy=threadWasBusy@entry=false,
suspendIfInactive=suspendIfInactive@entry=false,
justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f29a917d038 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0xb62c70, th=0x7f299c003420, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:66
#6  0x00007f29a9177f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f299c003420, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#7  0x00007f29a917d092 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0xb62c70, th=0x7f299c003420, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:73
#8  0x00007f29a9177f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f299c003420, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#9  0x00007f29a917aea3 in ThreadWeaver::Thread::run() (this=0x7f299c003420) at
../../src/thread.cpp:103
#10 0x00000030180a57fe in QThreadPrivate::start(void*) (arg=0x7f299c003420) at
thread/qthread_unix.cpp:331
#11 0x0000003000c07454 in start_thread (arg=0x7f299a7fc700) at
pthread_create.c:334
#12 0x00000030004e8edd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f2999ffb700 (LWP 4967)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030180a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0xbc44a0) at
thread/qwaitcondition_unix.cpp:136
#2  0x00000030180a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(this=<optimized out>, mutex=0xaefc60, time=time@entry=18446744073709551615) at
thread/qwaitcondition_unix.cpp:208
#3  0x00007f29a917802b in
ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*)
(this=this@entry=0xb2ac90, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f29a9178ddf in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) (this=0xb2ac90, th=th@entry=0x7f2988002f90,
threadWasBusy=threadWasBusy@entry=false,
suspendIfInactive=suspendIfInactive@entry=false,
justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f29a917d038 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0xb62c70, th=0x7f2988002f90, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:66
#6  0x00007f29a9177f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f2988002f90, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#7  0x00007f29a917d092 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0xb62c70, th=0x7f2988002f90, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:73
#8  0x00007f29a9177f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f2988002f90, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#9  0x00007f29a917aea3 in ThreadWeaver::Thread::run() (this=0x7f2988002f90) at
../../src/thread.cpp:103
#10 0x00000030180a57fe in QThreadPrivate::start(void*) (arg=0x7f2988002f90) at
thread/qthread_unix.cpp:331
#11 0x0000003000c07454 in start_thread (arg=0x7f2999ffb700) at
pthread_create.c:334
#12 0x00000030004e8edd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f29997fa700 (LWP 4968)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030180a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0xbc44a0) at
thread/qwaitcondition_unix.cpp:136
#2  0x00000030180a6a9b in QWaitCondition::wait(QMutex*, unsigned long)
(this=<optimized out>, mutex=0xaefc60, time=time@entry=18446744073709551615) at
thread/qwaitcondition_unix.cpp:208
#3  0x00007f29a917802b in
ThreadWeaver::Weaver::blockThreadUntilJobsAreBeingAssigned_locked(ThreadWeaver::Thread*)
(this=this@entry=0xb2ac90, th=<optimized out>) at ../../src/weaver.cpp:594
#4  0x00007f29a9178ddf in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) (this=0xb2ac90, th=th@entry=0x7f298c002d90,
threadWasBusy=threadWasBusy@entry=false,
suspendIfInactive=suspendIfInactive@entry=false,
justReturning=justReturning@entry=false) at ../../src/weaver.cpp:554
#5  0x00007f29a917d038 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0xb62c70, th=0x7f298c002d90, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:66
#6  0x00007f29a9177f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f298c002d90, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#7  0x00007f29a917d092 in
ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, bool)
(this=0xb62c70, th=0x7f298c002d90, wasBusy=<optimized out>) at
../../src/workinghardstate.cpp:73
#8  0x00007f29a9177f8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool)
(this=<optimized out>, th=0x7f298c002d90, wasBusy=<optimized out>) at
../../src/weaver.cpp:568
#9  0x00007f29a917aea3 in ThreadWeaver::Thread::run() (this=0x7f298c002d90) at
../../src/thread.cpp:103
#10 0x00000030180a57fe in QThreadPrivate::start(void*) (arg=0x7f298c002d90) at
thread/qthread_unix.cpp:331
#11 0x0000003000c07454 in start_thread (arg=0x7f29997fa700) at
pthread_create.c:334
#12 0x00000030004e8edd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f29b63b87c0 (LWP 4740)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000300340a5d9 in _xcb_conn_wait (c=c@entry=0x859470,
cond=cond@entry=0x7ffd432cc110, vector=vector@entry=0x0, count=count@entry=0x0)
at ../../src/xcb_conn.c:427
#2  0x000000300340bd37 in wait_for_reply (c=c@entry=0x859470, request=943,
e=e@entry=0x7ffd432cc1e0) at ../../src/xcb_in.c:516
#3  0x000000300340be41 in xcb_wait_for_reply (c=c@entry=0x859470, request=943,
e=e@entry=0x7ffd432cc1e0) at ../../src/xcb_in.c:546
#4  0x0000003003843317 in _XReply (dpy=dpy@entry=0x8580e0,
rep=rep@entry=0x7ffd432cc260, extra=extra@entry=0, discard=discard@entry=0) at
../../src/xcb_io.c:602
#5  0x000000301044435a in DRI2GetBuffersWithFormat (dpy=0x8580e0,
drawable=39845898, width=width@entry=0xe64748, height=height@entry=0xe6474c,
attachments=0x7ffd432cc400, count=1, outCount=0x7ffd432cc3c0) at
../../../../src/glx/dri2.c:491
#6  0x0000003010444697 in dri2GetBuffersWithFormat (driDrawable=<optimized
out>, width=0xe64748, height=0xe6474c, attachments=<optimized out>,
count=<optimized out>, out_count=0x7ffd432cc3c0, loaderPrivate=0xed2080) at
../../../../src/glx/dri2_glx.c:900
#7  0x00007f29af633b6a in dri2_allocate_textures (count=<synthetic pointer>,
atts=0xed27d0, drawable=0xed2160) at
../../../../../../src/gallium/state_trackers/dri/dri2.c:213
#8  0x00007f29af633b6a in dri2_allocate_textures (ctx=0xe0b250,
drawable=0xed2160, statts=0xed27d0, statts_count=2) at
../../../../../../src/gallium/state_trackers/dri/dri2.c:407
#9  0x00007f29af63048c in dri_st_framebuffer_validate (stctx=<optimized out>,
stfbi=<optimized out>, statts=0xed27d0, count=2, out=0x7ffd432cc530) at
../../../../../../src/gallium/state_trackers/dri/dri_drawable.c:83
#10 0x00007f29af558cde in st_framebuffer_validate (stfb=0xed2370,
st=st@entry=0xec6580) at ../../../../src/mesa/state_tracker/st_manager.c:200
#11 0x00007f29af55a299 in st_manager_validate_framebuffers
(st=st@entry=0xec6580) at ../../../../src/mesa/state_tracker/st_manager.c:925
#12 0x00007f29af512744 in st_validate_state (st=st@entry=0xec6580) at
../../../../src/mesa/state_tracker/st_atom.c:189
#13 0x00007f29af519677 in st_Clear (ctx=0xe86e40, mask=50) at
../../../../src/mesa/state_tracker/st_cb_clear.c:470
#14 0x000000304112925a in QSGBatchRenderer::Renderer::renderBatches() () at
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x000000304112ec42 in QSGBatchRenderer::Renderer::render() () at
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x000000304113a93f in QSGRenderer::renderScene(QSGBindable const&) () at
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x000000304113b18b in QSGRenderer::renderScene(unsigned int) () at
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x000000304114b68e in QSGRenderContext::renderNextFrame(QSGRenderer*,
unsigned int) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x000000304119566b in QQuickWindowPrivate::renderSceneGraph(QSize const&)
() at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x000000304116603b in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x0000003041167141 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x000000301db5affc in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=this@entry=0x84ad10, receiver=receiver@entry=0x9b7f50,
e=e@entry=0x7ffd432cce20) at kernel/qapplication.cpp:3716
#23 0x000000301db604b6 in QApplication::notify(QObject*, QEvent*)
(this=0x7ffd432cd130, receiver=0x9b7f50, e=0x7ffd432cce20) at
kernel/qapplication.cpp:3499
#24 0x00000030182865ab in QCoreApplication::notifyInternal(QObject*, QEvent*)
(this=0x7ffd432cd130, receiver=0x9b7f50, event=event@entry=0x7ffd432cce20) at
kernel/qcoreapplication.cpp:965
#25 0x00000030182db85d in QTimerInfoList::activateTimers()
(event=0x7ffd432cce20, receiver=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#26 0x00000030182db85d in QTimerInfoList::activateTimers() (this=0x898390) at
kernel/qtimerinfo_unix.cpp:637
#27 0x00000030182dbd99 in idleTimerSourceDispatch(GSource*, GSourceFunc,
gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#28 0x00000030182dbd99 in idleTimerSourceDispatch(GSource*, GSourceFunc,
gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:224
#29 0x0000003004449fd7 in g_main_context_dispatch (context=0x7f29b00016f0) at
/build/glib2.0-2.46.2/./glib/gmain.c:3154
#30 0x0000003004449fd7 in g_main_context_dispatch
(context=context@entry=0x7f29b00016f0) at
/build/glib2.0-2.46.2/./glib/gmain.c:3769
#31 0x000000300444a230 in g_main_context_iterate
(context=context@entry=0x7f29b00016f0, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
/build/glib2.0-2.46.2/./glib/gmain.c:3840
#32 0x000000300444a2dc in g_main_context_iteration (context=0x7f29b00016f0,
may_block=may_block@entry=1) at /build/glib2.0-2.46.2/./glib/gmain.c:3901
#33 0x00000030182dca5b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x8a15e0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#34 0x0000003018283d6a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7ffd432cd060, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:204
#35 0x000000301828be0c in QCoreApplication::exec() () at
kernel/qcoreapplication.cpp:1229
#36 0x0000000000407671 in main ()

Possible duplicates by query: bug 360697.

Reported using DrKonqi

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