Application: krunner (5.5.4)

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

-- Information about the crash:
- What I was doing when the application crashed:
attempted to start konsole with alt-F2 - krunner crashed and konsole didn't start

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 0x7f511171b7c0 (LWP 29172))]

Thread 12 (Thread 0x7f5111058700 (LWP 29173)):
#0  0x00000030004dfdcd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x000000300380a382 in _xcb_conn_wait (__timeout=-1, __nfds=1, __fds=0x7f5111057d00) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  0x000000300380a382 in _xcb_conn_wait (c=c@entry=0x10ca470, cond=cond@entry=0x10ca4b0, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:459
#3  0x000000300380bff7 in xcb_wait_for_event (c=0x10ca470) at ../../src/xcb_in.c:693
#4  0x00007f51114b7789 in QXcbEventReader::run() (this=0x10dd4c0) at qxcbconnection.cpp:1230
#5  0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x10dd4c0) at thread/qthread_unix.cpp:331
#6  0x0000003000c07454 in start_thread (arg=0x7f5111058700) at pthread_create.c:334
#7  0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f5107b57700 (LWP 29181)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f510b243693 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#2  0x00007f510b242db7 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#3  0x0000003000c07454 in start_thread (arg=0x7f5107b57700) at pthread_create.c:334
#4  0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f5105fec700 (LWP 29187)):
#0  0x000000301749dd8f in QMutex::unlock() (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x1467048: 0x0) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  0x000000301749dd8f in QMutex::unlock() (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=<optimized out>, _q_value=@0x1467048: 0x0) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:175
#2  0x000000301749dd8f in QMutex::unlock() (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=<optimized out>, this=this@entry=0x1467048) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:278
#3  0x000000301749dd8f in QMutex::unlock() (current=<synthetic pointer>, this=this@entry=0x1467048) at thread/qmutex.h:85
#4  0x000000301749dd8f in QMutex::unlock() (this=this@entry=0x1467048) at thread/qmutex.cpp:264
#5  0x00000030176dbff1 in postEventSourcePrepare(GSource*, gint*) (this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:138
#6  0x00000030176dbff1 in postEventSourcePrepare(GSource*, gint*) (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:132
#7  0x00000030176dbff1 in postEventSourcePrepare(GSource*, gint*) (this=0x1467020) at ../../include/QtCore/5.5.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:240
#8  0x00000030176dbff1 in postEventSourcePrepare(GSource*, gint*) (s=0x7f51000012d0, timeout=timeout@entry=0x7f5105febc24) at kernel/qeventdispatcher_glib.cpp:254
#9  0x0000003002c4992d in g_main_context_prepare (context=context@entry=0x7f5100000990, priority=priority@entry=0x7f5105febcb0) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3442
#10 0x0000003002c4a2cb in g_main_context_iterate (context=context@entry=0x7f5100000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3820
#11 0x0000003002c4a4ac in g_main_context_iteration (context=0x7f5100000990, may_block=may_block@entry=1) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3901
#12 0x00000030176dca5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f51000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#13 0x0000003017683daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f5105febde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00000030174a0864 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00000030556d5105 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x1466ee0) at thread/qthread_unix.cpp:331
#17 0x0000003000c07454 in start_thread (arg=0x7f5105fec700) at pthread_create.c:334
#18 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f50fba84700 (LWP 29284)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x1453740) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x136f8f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f50ffdebdbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f50ffdeffe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f50ffdeaf8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f50ffdf0042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f50ffdeaf8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f50ffdede53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x1d06510) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7f50fba84700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f50fb283700 (LWP 29285)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x1453740) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x136f8f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f50ffdebdbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f50ffdeffe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f50ffdeaf8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f50ffdf0042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f50ffdeaf8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f50ffdf0042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007f50ffdeaf8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007f50ffdf0042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007f50ffdeaf8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007f50ffdf0042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f50ffdeaf8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f50ffdede53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x1d075d0) at thread/qthread_unix.cpp:331
#16 0x0000003000c07454 in start_thread (arg=0x7f50fb283700) at pthread_create.c:334
#17 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f50faa82700 (LWP 29286)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x1453740) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x136f8f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f50ffdebdbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f50ffdeffe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f50ffdeaf8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f50ffdf0042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f50ffdeaf8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f50ffdede53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x1ce4e30) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7f50faa82700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f50fa281700 (LWP 29287)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x1453740) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x136f8f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f50ffdebdbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f50ffdeffe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f50ffdeaf8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f50ffdf0042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f50ffdeaf8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f50ffdede53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x1d07010) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7f50fa281700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f50f9a80700 (LWP 29288)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x1453740) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x136f8f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f50ffdebdbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f50ffdeffe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f50ffdeaf8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f50ffdf0042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f50ffdeaf8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f50ffdede53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x7f50f4002d90) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7f50f9a80700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f50f927f700 (LWP 29289)):
[KCrash Handler]
#6  0x00000030d9a049d4 in mdb_txn_begin () at /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#7  0x00000030c5a2101e in  () at /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#8  0x00000030c5a0fff2 in Baloo::Query::exec() () at /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#9  0x00007f50fc6cbf2f in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_baloosearchrunner.so
#10 0x00007f50fc6cc879 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_baloosearchrunner.so
#11 0x00007f510400df40 in Plasma::AbstractRunner::performMatch(Plasma::RunnerContext&) (this=0x1df8410, localContext=...) at ../../src/abstractrunner.cpp:131
#12 0x00007f50ffdef790 in ThreadWeaver::Executor::run(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007f50ffdee2e0 in ThreadWeaver::Job::execute(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007f50ffdedd8a in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x1cda000) at thread/qthread_unix.cpp:331
#16 0x0000003000c07454 in start_thread (arg=0x7f50f927f700) at pthread_create.c:334
#17 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f50f8a7e700 (LWP 29290)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x1453740) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x136f8f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f50ffdebdbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f50ffdeffe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f50ffdeaf8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f50ffdf0042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f50ffdeaf8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f50ffdede53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x7f50ec002f90) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7f50f8a7e700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f50f3fff700 (LWP 29291)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (time=18446744073709551615, this=0x1453740) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6aab in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x136f8f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f50ffdebdbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007f50ffdeffe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007f50ffdeaf8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007f50ffdf0042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007f50ffdeaf8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007f50ffdede53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a580e in QThreadPrivate::start(void*) (arg=0x7f50e8002f90) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7f50f3fff700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f511171b7c0 (LWP 29172)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000300380a5d9 in _xcb_conn_wait (c=c@entry=0x10ca470, cond=cond@entry=0x7fff4cf24500, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:427
#2  0x000000300380bd37 in wait_for_reply (c=c@entry=0x10ca470, request=1067, e=e@entry=0x7fff4cf245d0) at ../../src/xcb_in.c:516
#3  0x000000300380be41 in xcb_wait_for_reply (c=c@entry=0x10ca470, request=1067, e=e@entry=0x7fff4cf245d0) at ../../src/xcb_in.c:546
#4  0x0000003003c43317 in _XReply (dpy=0x10c90e0, rep=0x7fff4cf24650, 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  0x00007f510aeb12fa in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#8  0x00007f510aeadb4c in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#9  0x00007f510add409e in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#10 0x00007f510add5609 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#11 0x00007f510ad7ab72 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#12 0x00007f510ad82c61 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#13 0x000000303fb2925a in QSGBatchRenderer::Renderer::renderBatches() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x000000303fb2ec42 in QSGBatchRenderer::Renderer::render() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x000000303fb3a93f in QSGRenderer::renderScene(QSGBindable const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x000000303fb3b18b in QSGRenderer::renderScene(unsigned int) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x000000303fb4b68e in QSGRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x000000303fb9566b in QQuickWindowPrivate::renderSceneGraph(QSize const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x000000303fb6603b in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x000000303fb67141 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x000000301db5affc in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x10bbd10, receiver=receiver@entry=0x122a830, e=e@entry=0x7fff4cf251f0) at kernel/qapplication.cpp:3716
#22 0x000000301db604b6 in QApplication::notify(QObject*, QEvent*) (this=0x7fff4cf25500, receiver=0x122a830, e=0x7fff4cf251f0) at kernel/qapplication.cpp:3499
#23 0x00000030176865eb in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7fff4cf25500, receiver=0x122a830, event=event@entry=0x7fff4cf251f0) at kernel/qcoreapplication.cpp:965
#24 0x00000030176db85d in QTimerInfoList::activateTimers() (event=0x7fff4cf251f0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#25 0x00000030176db85d in QTimerInfoList::activateTimers() (this=0x1108e00) 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 0x0000003002c4a1a7 in g_main_context_dispatch (context=0x7f510c0016f0) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3154
#29 0x0000003002c4a1a7 in g_main_context_dispatch (context=context@entry=0x7f510c0016f0) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3769
#30 0x0000003002c4a400 in g_main_context_iterate (context=context@entry=0x7f510c0016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3840
#31 0x0000003002c4a4ac in g_main_context_iteration (context=0x7f510c0016f0, may_block=may_block@entry=1) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3901
#32 0x00000030176dca5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1118460, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#33 0x0000003017683daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fff4cf25430, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#34 0x000000301768be4c in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1229
#35 0x0000000000407671 in main ()

Possible duplicates by query: bug 363322.

Reported using DrKonqi