Application: plasma-discover (5.13.5)

Qt Version: 5.11.1
Frameworks Version: 5.51.0
Operating System: Linux 4.15.0-34-generic x86_64
Distribution: KDE neon Developer Edition

-- Information about the crash:
- What I was doing when the application crashed:

With the latest Edition of KDE Neon Dev Unstable, Discover crashes on Launch

-- Backtrace:
Application: Discover (plasma-discover), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fdc591508c0 (LWP 3126))]

Thread 12 (Thread 0x7fdc1b9c8700 (LWP 3140)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007fdc54df7355 in QBasicMutex::lockInternal() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdc54df73b7 in QMutex::lock() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fdc54ff4a1f in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdc1ad80ee4 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/bearer/libqgenericbearer.so
#5  0x00007fdc54fd4719 in QMetaMethod::invoke(QObject*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) const () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdc54fd98f7 in QMetaObject::invokeMethod(QObject*, char const*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdc522f0836 in QNetworkConfigurationManagerPrivate::pollEngines() () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#8  0x00007fdc5237870d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#9  0x00007fdc54ff4f79 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fdc55001b07 in QTimer::timeout(QTimer::QPrivateSignal) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fdc55001e08 in QTimer::timerEvent(QTimerEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fdc54ff5f73 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fdc54fc821b in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fdc5501e47e in QTimerInfoList::activateTimers() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fdc5501ed01 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007fdc4f03d197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007fdc4f03d3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007fdc4f03d49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fdc5501f09f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007fdc54fc65ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007fdc54dfb5e4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007fdc54e06727 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007fdc50ea26ba in start_thread (arg=0x7fdc1b9c8700) at pthread_create.c:333
#24 0x00007fdc5440a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7fdc254b2700 (LWP 3139)):
#0  0x00007fdc543fe74d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fdc4f03d38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdc4f03d49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdc5501f0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdc54fc65ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdc54dfb5e4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdc5824cf86 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fdc54e06727 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdc50ea26ba in start_thread (arg=0x7fdc254b2700) at pthread_create.c:333
#9  0x00007fdc5440a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7fdc25d13700 (LWP 3136)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fdc2e4fe70b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007fdc2e4fe427 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007fdc50ea26ba in start_thread (arg=0x7fdc25d13700) at pthread_create.c:333
#4  0x00007fdc5440a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fdc26514700 (LWP 3135)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fdc2e4fe70b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007fdc2e4fe427 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007fdc50ea26ba in start_thread (arg=0x7fdc26514700) at pthread_create.c:333
#4  0x00007fdc5440a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7fdc26d15700 (LWP 3134)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fdc2e4fe70b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007fdc2e4fe427 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007fdc50ea26ba in start_thread (arg=0x7fdc26d15700) at pthread_create.c:333
#4  0x00007fdc5440a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fdc27516700 (LWP 3133)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fdc2e4fe70b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007fdc2e4fe427 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007fdc50ea26ba in start_thread (arg=0x7fdc27516700) at pthread_create.c:333
#4  0x00007fdc5440a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fdc27d17700 (LWP 3132)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fdc2e4fe70b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007fdc2e4fe427 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007fdc50ea26ba in start_thread (arg=0x7fdc27d17700) at pthread_create.c:333
#4  0x00007fdc5440a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fdc28518700 (LWP 3131)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fdc2e4fe70b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007fdc2e4fe427 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007fdc50ea26ba in start_thread (arg=0x7fdc28518700) at pthread_create.c:333
#4  0x00007fdc5440a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fdc2969a700 (LWP 3130)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fdc2e4fe70b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007fdc2e4fe427 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007fdc50ea26ba in start_thread (arg=0x7fdc2969a700) at pthread_create.c:333
#4  0x00007fdc5440a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fdc3ce87700 (LWP 3129)):
#0  0x00007fdc4f081a79 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdc4f03c929 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdc4f03d2bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdc4f03d49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdc5501f0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdc54fc65ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdc54dfb5e4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdc55986195 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fdc54e06727 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdc50ea26ba in start_thread (arg=0x7fdc3ce87700) at pthread_create.c:333
#10 0x00007fdc5440a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fdc3e098700 (LWP 3128)):
#0  0x00007fdc543fa27d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fdc4f0806f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdc4f03ce74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdc4f03d330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdc4f03d49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdc5501f0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdc54fc65ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdc54dfb5e4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdc56d41f35 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007fdc54e06727 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fdc50ea26ba in start_thread (arg=0x7fdc3e098700) at pthread_create.c:333
#11 0x00007fdc5440a41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fdc591508c0 (LWP 3126)):
[KCrash Handler]
#6  0x00007fdc54338428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#7  0x00007fdc5433a02a in __GI_abort () at abort.c:89
#8  0x00007fdc5437a7ea in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7fdc54493ed8 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
#9  0x00007fdc54385651 in malloc_printerr (ar_ptr=0x7ffefba4de60, ptr=0x1c910a0, str=0x7fdc544942e0 "malloc(): memory corruption (fast)", action=3) at malloc.c:5006
#10 _int_malloc (av=av@entry=0x7fdc546c7b20 <main_arena>, bytes=bytes@entry=72) at malloc.c:3386
#11 0x00007fdc54387184 in __GI___libc_malloc (bytes=72) at malloc.c:2913
#12 0x00007fdc54a63e78 in operator new(unsigned long) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#13 0x00007fdc54ff7fd2 in QObjectPrivate::connectImpl(QObject const*, int, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fdc54ff8442 in QObject::connectImpl(QObject const*, void**, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fdc1be15306 in KNSCore::Engine::Engine(QObject*) () from /usr/lib/x86_64-linux-gnu/libKF5NewStuffCore.so.5
#16 0x00007fdc1c0808be in KNSBackend::KNSBackend(QObject*, QString const&, QString const&) () from /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/kns-backend.so
#17 0x00007fdc1c0841ce in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/kns-backend.so
#18 0x00007fdc57eed030 in DiscoverBackendsFactory::backendForFile(QString const&, QString const&) const () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#19 0x00007fdc57eed6b2 in DiscoverBackendsFactory::backend(QString const&) const () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#20 0x00007fdc57eedb16 in DiscoverBackendsFactory::allBackends() const () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#21 0x00007fdc57ed7d07 in ResourcesModel::registerAllBackends() () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#22 0x00007fdc57efc635 in ?? () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#23 0x00007fdc54ff5fb9 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007fdc5662239c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007fdc56629ab0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007fdc54fc8228 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fdc54fcae2e in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007fdc5501fa93 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007fdc4f03d197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007fdc4f03d3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007fdc4f03d49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007fdc5501f09f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007fdc48e259a1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#34 0x00007fdc54fc65ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007fdc54fcf6c4 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x00000000004131ff in ?? ()
#37 0x00007fdc54323830 in __libc_start_main (main=0x4127c0, argc=1, argv=0x7ffefba4ef08, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffefba4eef8) at ../csu/libc-start.c:291
#38 0x0000000000413399 in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 398412.

Possible duplicates by query: bug 398607, bug 398597, bug 398564, bug 398562, bug 398549.

Reported using DrKonqi