Application: plasma-discover (5.12.1)

Qt Version: 5.9.3
Frameworks Version: 5.43.0
Operating System: Linux 4.13.0-32-generic x86_64
Distribution: KDE neon User Edition 5.12

-- Information about the crash:
- What I was doing when the application crashed: Once Upon A opening discover software Center and clicking settings tab on the bottom left will crash the program. This crash happens 95% of the time using the software Center.

The crash can be reproduced every time.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd05c7358c0 (LWP 24013))]

Thread 12 (Thread 0x7fd00f3f4700 (LWP 24049)):
#0  0x00007fd057bd374d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fd052ba238c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd052ba249c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd0588036cb in QEventDispatcherGlib::processEvents (this=0x7fcffc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fd0587abe2a in QEventLoop::exec (this=this@entry=0x7fd00f3f3d00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fd0585d48f4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#6  0x00007fd0585d9709 in QThreadPrivate::start (arg=0x2551db0) at thread/qthread_unix.cpp:368
#7  0x00007fd054a2b6ba in start_thread (arg=0x7fd00f3f4700) at pthread_create.c:333
#8  0x00007fd057bdf41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7fd01c96d700 (LWP 24047)):
#0  0x00007fd057bd374d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fd052ba238c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd052ba249c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd0588036cb in QEventDispatcherGlib::processEvents (this=0x7fd0080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fd0587abe2a in QEventLoop::exec (this=this@entry=0x7fd01c96cd00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fd0585d48f4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#6  0x00007fd0585d9709 in QThreadPrivate::start (arg=0x35facc0) at thread/qthread_unix.cpp:368
#7  0x00007fd054a2b6ba in start_thread (arg=0x7fd01c96d700) at pthread_create.c:333
#8  0x00007fd057bdf41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7fd01ea0a700 (LWP 24027)):
#0  0x00007ffdf5e3c98a in ?? ()
#1  0x00007ffdf5e3ccb8 in clock_gettime ()
#2  0x00007fd057bed876 in __GI___clock_gettime (clock_id=clock_id@entry=1, tp=tp@entry=0x7fd01ea09ae0) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007fd058802fd1 in qt_clock_gettime (ts=0x7fd01ea09ae0, clock=<optimized out>) at kernel/qelapsedtimer_unix.cpp:111
#4  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at kernel/qelapsedtimer_unix.cpp:166
#5  qt_gettime () at kernel/qelapsedtimer_unix.cpp:175
#6  0x00007fd0588017c9 in QTimerInfoList::updateCurrentTime (this=0x7fd0140022d0) at kernel/qtimerinfo_unix.cpp:91
#7  0x00007fd058803e25 in timerSourceCheckHelper (src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:146
#8  timerSourceCheck (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:173
#9  0x00007fd052ba1dc1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fd052ba2330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fd052ba249c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007fd0588036cb in QEventDispatcherGlib::processEvents (this=0x7fd0140008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#13 0x00007fd0587abe2a in QEventLoop::exec (this=this@entry=0x7fd01ea09d00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#14 0x00007fd0585d48f4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#15 0x00007fd0585d9709 in QThreadPrivate::start (arg=0x26c50a0) at thread/qthread_unix.cpp:368
#16 0x00007fd054a2b6ba in start_thread (arg=0x7fd01ea0a700) at pthread_create.c:333
#17 0x00007fd057bdf41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fd01f20b700 (LWP 24025)):
#0  0x00007fd057bd374d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fd052ba238c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd052ba2712 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd020be39d6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fd052bc8bb5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd054a2b6ba in start_thread (arg=0x7fd01f20b700) at pthread_create.c:333
#6  0x00007fd057bdf41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7fd01fa0c700 (LWP 24024)):
#0  0x00007fd052be6a94 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fd052ba223d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd052ba249c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd052ba24d9 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd052bc8bb5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd054a2b6ba in start_thread (arg=0x7fd01fa0c700) at pthread_create.c:333
#6  0x00007fd057bdf41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fd02a402700 (LWP 24023)):
#0  0x00007ffdf5e3cad3 in clock_gettime ()
#1  0x00007fd057bed876 in __GI___clock_gettime (clock_id=clock_id@entry=1, tp=tp@entry=0x7fd02a4019f0) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007fd058802fd1 in qt_clock_gettime (ts=0x7fd02a4019f0, clock=<optimized out>) at kernel/qelapsedtimer_unix.cpp:111
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at kernel/qelapsedtimer_unix.cpp:166
#4  qt_gettime () at kernel/qelapsedtimer_unix.cpp:175
#5  0x00007fd0588017c9 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7fd024002ed0) at kernel/qtimerinfo_unix.cpp:91
#6  0x00007fd058801d35 in QTimerInfoList::timerWait (this=0x7fd024002ed0, tm=...) at kernel/qtimerinfo_unix.cpp:388
#7  0x00007fd05880343e in timerSourcePrepareHelper (timeout=0x7fd02a401ac4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:132
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7fd02a401ac4) at kernel/qeventdispatcher_glib.cpp:165
#9  0x00007fd052ba191d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fd052ba22bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fd052ba249c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007fd0588036cb in QEventDispatcherGlib::processEvents (this=0x7fd0240008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#13 0x00007fd0587abe2a in QEventLoop::exec (this=this@entry=0x7fd02a401c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#14 0x00007fd0585d48f4 in QThread::exec (this=this@entry=0x2510720) at thread/qthread.cpp:515
#15 0x00007fd05b9a3046 in QQuickPixmapReader::run (this=0x2510720) at util/qquickpixmapcache.cpp:868
#16 0x00007fd0585d9709 in QThreadPrivate::start (arg=0x2510720) at thread/qthread_unix.cpp:368
#17 0x00007fd054a2b6ba in start_thread (arg=0x7fd02a402700) at pthread_create.c:333
#18 0x00007fd057bdf41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fd02dcf3700 (LWP 24021)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fd0334d248b in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#2  0x00007fd0334d2397 in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#3  0x00007fd054a2b6ba in start_thread (arg=0x7fd02dcf3700) at pthread_create.c:333
#4  0x00007fd057bdf41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fd02eb1b700 (LWP 24020)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fd0334d248b in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#2  0x00007fd0334d2397 in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#3  0x00007fd054a2b6ba in start_thread (arg=0x7fd02eb1b700) at pthread_create.c:333
#4  0x00007fd057bdf41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fd03b5ef700 (LWP 24017)):
#0  0x00007fd057bd374d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fd052ba238c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd052ba249c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd0588036cb in QEventDispatcherGlib::processEvents (this=0x7fd0340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fd0587abe2a in QEventLoop::exec (this=this@entry=0x7fd03b5eece0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fd0585d48f4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#6  0x00007fd0591d6d25 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fd0585d9709 in QThreadPrivate::start (arg=0x21475a0) at thread/qthread_unix.cpp:368
#8  0x00007fd054a2b6ba in start_thread (arg=0x7fd03b5ef700) at pthread_create.c:333
#9  0x00007fd057bdf41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fd0408d9700 (LWP 24015)):
#0  0x00007fd052be6a79 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fd052ba2488 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd0588036cb in QEventDispatcherGlib::processEvents (this=0x7fd03c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#3  0x00007fd0587abe2a in QEventLoop::exec (this=this@entry=0x7fd0408d8cd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#4  0x00007fd0585d48f4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#5  0x00007fd05a4b5315 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#6  0x00007fd0585d9709 in QThreadPrivate::start (arg=0x7fd05a729d40) at thread/qthread_unix.cpp:368
#7  0x00007fd054a2b6ba in start_thread (arg=0x7fd0408d9700) at pthread_create.c:333
#8  0x00007fd057bdf41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fd0498db700 (LWP 24014)):
#0  0x00007fd057bd374d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fd05293fc62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fd0529418d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fd04be321f9 in QXcbEventReader::run (this=0x2099d40) at qxcbconnection.cpp:1330
#4  0x00007fd0585d9709 in QThreadPrivate::start (arg=0x2099d40) at thread/qthread_unix.cpp:368
#5  0x00007fd054a2b6ba in start_thread (arg=0x7fd0498db700) at pthread_create.c:333
#6  0x00007fd057bdf41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fd05c7358c0 (LWP 24013)):
[KCrash Handler]
#6  std::__atomic_base<int>::load (__m=std::memory_order_relaxed, this=<error reading variable: Cannot access memory at address 0x32ef812b0>) at /usr/include/c++/5/bits/atomic_base.h:396
#7  QAtomicOps<int>::load<int> (_q_value=<error reading variable: Cannot access memory at address 0x32ef812b0>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qatomic_cxx11.h:227
#8  QBasicAtomicInteger<int>::load (this=<error reading variable: Cannot access memory at address 0x32ef812b0>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qbasicatomic.h:102
#9  QtPrivate::RefCount::deref (this=<error reading variable: Cannot access memory at address 0x32ef812b0>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qrefcount.h:66
#10 QString::~QString (this=0x32ef812b0, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:1084
#11 QList<QString>::node_destruct (this=<optimized out>, to=0x32ef812b0, from=0x35507a0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:496
#12 QList<QString>::dealloc (data=0x3550790, this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:865
#13 0x00007fd05b64b8b8 in QStringList::~QStringList (this=0x7ffdf5e0f640, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qstringlist.h:101
#14 AbstractResourcesBackend::Filters::shouldFilter (this=0x3550790, res=0x34c40d0) at /workspace/build/libdiscover/resources/AbstractResourcesBackend.cpp:102
#15 0x00007fd05b64ba4d in AbstractResourcesBackend::Filters::filterJustInCase (this=this@entry=0x3550790, input=...) at /workspace/build/libdiscover/resources/AbstractResourcesBackend.cpp:126
#16 0x00007fd05b64288a in ResourcesProxyModel::addResources (this=0x3550760, _res=...) at /workspace/build/libdiscover/resources/ResourcesProxyModel.cpp:173
#17 0x00007fd0587da5a6 in QtPrivate::QSlotObjectBase::call (a=0x7ffdf5e0f7e0, r=0x3550760, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:101
#18 QMetaObject::activate (sender=sender@entry=0x33459d0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdf5e0f7e0) at kernel/qobject.cpp:3749
#19 0x00007fd0587dab87 in QMetaObject::activate (sender=sender@entry=0x33459d0, m=m@entry=0x7fd05b87b440 <ResultsStream::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdf5e0f7e0) at kernel/qobject.cpp:3628
#20 0x00007fd05b65ae42 in ResultsStream::resourcesFound (this=this@entry=0x33459d0, _t1=...) at /workspace/build/obj-x86_64-linux-gnu/libdiscover/moc_AbstractResourcesBackend.cpp:141
#21 0x00007fd05b63b600 in AggregatedResultsStream::emitResults (this=this@entry=0x33459d0) at /workspace/build/libdiscover/resources/ResourcesModel.cpp:291
#22 0x00007fd05b63b659 in AggregatedResultsStream::clear (this=0x33459d0) at /workspace/build/libdiscover/resources/ResourcesModel.cpp:307
#23 0x00007fd05b63c873 in AggregatedResultsStream::destruction (this=0x33459d0, obj=0x3311c10) at /workspace/build/libdiscover/resources/ResourcesModel.cpp:301
#24 0x00007fd0587da5a6 in QtPrivate::QSlotObjectBase::call (a=0x7ffdf5e0f980, r=0x33459d0, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:101
#25 QMetaObject::activate (sender=sender@entry=0x3311c10, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdf5e0f980) at kernel/qobject.cpp:3749
#26 0x00007fd0587dab87 in QMetaObject::activate (sender=sender@entry=0x3311c10, m=m@entry=0x7fd058c5ca00 <QObject::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdf5e0f980) at kernel/qobject.cpp:3628
#27 0x00007fd0587dac2f in QObject::destroyed (this=this@entry=0x3311c10, _t1=_t1@entry=0x3311c10) at .moc/moc_qobject.cpp:214
#28 0x00007fd0587e18e5 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:901
#29 0x00007fd05b64b499 in ResultsStream::~ResultsStream (this=0x3311c10, __in_chrg=<optimized out>) at /workspace/build/libdiscover/resources/AbstractResourcesBackend.cpp:66
#30 0x00007fd0587db2f0 in QObject::event (this=0x3311c10, e=<optimized out>) at kernel/qobject.cpp:1237
#31 0x00007fd059d9cb9c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x3311c10, e=0x3b16a80) at kernel/qapplication.cpp:3722
#32 0x00007fd059da45a7 in QApplication::notify (this=0x7ffdf5e10070, receiver=0x3311c10, e=0x3b16a80) at kernel/qapplication.cpp:3481
#33 0x00007fd0587addf8 in QCoreApplication::notifyInternal2 (receiver=0x3311c10, event=event@entry=0x3b16a80) at kernel/qcoreapplication.cpp:1018
#34 0x00007fd0587b05db in QCoreApplication::sendEvent (event=0x3b16a80, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233
#35 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x2076fe0) at kernel/qcoreapplication.cpp:1678
#36 0x00007fd0587b0a48 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1532
#37 0x00007fd0588040a3 in postEventSourceDispatch (s=0x20e87b0) at kernel/qeventdispatcher_glib.cpp:276
#38 0x00007fd052ba2197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007fd052ba23f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007fd052ba249c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007fd0588036af in QEventDispatcherGlib::processEvents (this=0x20e9440, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#42 0x00007fd0587abe2a in QEventLoop::exec (this=this@entry=0x7ffdf5e0ff90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#43 0x00007fd0587b4d64 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1291
#44 0x00007fd059625bdc in QGuiApplication::exec () at kernel/qguiapplication.cpp:1679
#45 0x00007fd059d9caf5 in QApplication::exec () at kernel/qapplication.cpp:2910
#46 0x0000000000411f9e in main (argc=1, argv=<optimized out>) at /workspace/build/discover/main.cpp:156

Possible duplicates by query: bug 384419, bug 372712.

Reported using DrKonqi