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:
I was starting a fresh plasma session and used alt-F2 to start a konsole session, krunner crashed but started konsole and restarted krunner alright.

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".
[Current thread is 1 (Thread 0x7efc7bb207c0 (LWP 13749))]

Thread 12 (Thread 0x7efc7b45d700 (LWP 13750)):
#0  0x00000030004dfdcd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x000000300380a382 in _xcb_conn_wait (__timeout=-1, __nfds=1, __fds=0x7efc7b45cd00) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  0x000000300380a382 in _xcb_conn_wait (c=c@entry=0x2296470, cond=cond@entry=0x22964b0, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:459
#3  0x000000300380bff7 in xcb_wait_for_event (c=0x2296470) at ../../src/xcb_in.c:693
#4  0x00007efc7b8bc789 in QXcbEventReader::run() (this=0x22a94c0) at qxcbconnection.cpp:1230
#5  0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x22a94c0) at thread/qthread_unix.cpp:331
#6  0x0000003000c07454 in start_thread (arg=0x7efc7b45d700) at pthread_create.c:334
#7  0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7efc78974700 (LWP 13756)):
#0  0x0000003000c0d04f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007efc7964b693 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#2  0x00007efc7964adb7 in  () at /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#3  0x0000003000c07454 in start_thread (arg=0x7efc78974700) at pthread_create.c:334
#4  0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7efc703f3700 (LWP 13769)):
#0  0x00000030004dfdcd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x0000003002c4a39c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7efc68003070, timeout=<optimized out>, context=0x7efc68000990) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:4135
#2  0x0000003002c4a39c in g_main_context_iterate (context=context@entry=0x7efc68000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3835
#3  0x0000003002c4a4ac in g_main_context_iteration (context=0x7efc68000990, may_block=may_block@entry=1) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3901
#4  0x00000030176dca5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7efc680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x0000003017683d6a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7efc703f2de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00000030174a0854 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x0000003047cd5105 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x24e2b20) at thread/qthread_unix.cpp:331
#9  0x0000003000c07454 in start_thread (arg=0x7efc703f3700) at pthread_create.c:334
#10 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7efc65f36700 (LWP 13937)):
#0  0x0000003000c0d04f 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=0x24f58e0) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x252c7c0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007efc6e1f5dbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007efc6e1f9fe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007efc6e1f4f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007efc6e1fa042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007efc6e1f4f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007efc6e1f7e53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x2f43840) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7efc65f36700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7efc65735700 (LWP 13938)):
#0  0x0000003000c0d04f 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=0x24f58e0) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x252c7c0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007efc6e1f5dbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007efc6e1f9fe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007efc6e1f4f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007efc6e1fa042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007efc6e1f4f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007efc6e1f7e53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x2f43980) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7efc65735700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7efc64f34700 (LWP 13939)):
[KCrash Handler]
#6  0x00000030d8a03b44 in  () at /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#7  0x00000030d8a04d34 in mdb_txn_begin () at /usr/lib/x86_64-linux-gnu/liblmdb.so.0
#8  0x00000030c3c2101e in  () at /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#9  0x00000030c3c0fff2 in Baloo::Query::exec() () at /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5
#10 0x00007efc6c81ff2f in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_baloosearchrunner.so
#11 0x00007efc6c820879 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_baloosearchrunner.so
#12 0x00007efc6e415f40 in Plasma::AbstractRunner::performMatch(Plasma::RunnerContext&) (this=0x2f72d80, localContext=...) at ../../src/abstractrunner.cpp:131
#13 0x00007efc6e1f9790 in ThreadWeaver::Executor::run(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007efc6e1f82e0 in ThreadWeaver::Job::execute(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007efc6e1f7d8a in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#16 0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x2f43770) at thread/qthread_unix.cpp:331
#17 0x0000003000c07454 in start_thread (arg=0x7efc64f34700) at pthread_create.c:334
#18 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7efc5ffff700 (LWP 13940)):
#0  0x0000003000c0d04f 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=0x24f58e0) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x252c7c0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007efc6e1f5dbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007efc6e1f9fe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007efc6e1f4f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007efc6e1fa042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007efc6e1f4f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007efc6e1f7e53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x7efc60002d90) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7efc5ffff700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7efc5f7fe700 (LWP 13941)):
#0  0x0000003000c0d04f 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=0x24f58e0) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x252c7c0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007efc6e1f5dbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007efc6e1f9fe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007efc6e1f4f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007efc6e1fa042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007efc6e1f4f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007efc6e1f7e53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x7efc58002f90) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7efc5f7fe700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7efc5effd700 (LWP 13942)):
#0  0x0000003000c0d04f 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=0x24f58e0) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x252c7c0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007efc6e1f5dbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007efc6e1f9fe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007efc6e1f4f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007efc6e1fa042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007efc6e1f4f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007efc6e1f7e53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x2f43dd0) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7efc5effd700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7efc5e7fc700 (LWP 13943)):
#0  0x0000003000c0d04f 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=0x24f58e0) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x252c7c0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007efc6e1f5dbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007efc6e1f9fe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007efc6e1f4f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007efc6e1fa042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007efc6e1f4f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007efc6e1f7e53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x7efc60003420) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7efc5e7fc700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7efc5dffb700 (LWP 13944)):
#0  0x0000003000c0d04f 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=0x24f58e0) at thread/qwaitcondition_unix.cpp:136
#2  0x00000030174a6a9b in QWaitCondition::wait(QMutex*, unsigned long) (this=<optimized out>, mutex=0x252c7c0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007efc6e1f5dbf in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#4  0x00007efc6e1f9fe8 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007efc6e1f4f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007efc6e1fa042 in  () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007efc6e1f4f8d in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007efc6e1f7e53 in ThreadWeaver::Thread::run() () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00000030174a57fe in QThreadPrivate::start(void*) (arg=0x7efc580034e0) at thread/qthread_unix.cpp:331
#10 0x0000003000c07454 in start_thread (arg=0x7efc5dffb700) at pthread_create.c:334
#11 0x00000030004e8e5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7efc7bb207c0 (LWP 13749)):
#0  0x00000030004dfdcd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x0000003002c4a39c in g_main_context_iterate (priority=2147483647, n_fds=2, fds=0x26b02c0, timeout=<optimized out>, context=0x7efc740016f0) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:4135
#2  0x0000003002c4a39c in g_main_context_iterate (context=context@entry=0x7efc740016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3835
#3  0x0000003002c4a4ac in g_main_context_iteration (context=0x7efc740016f0, may_block=may_block@entry=1) at /build/glib2.0-wnDt2X/glib2.0-2.48.1/./glib/gmain.c:3901
#4  0x00000030176dca5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x22efa10, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x0000003017683d6a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffc2e8835a0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x000000301768be0c in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1229
#7  0x0000000000407671 in main ()

Reported using DrKonqi