Application: plasma-discover (5.13.5)

Qt Version: 5.11.1
Frameworks Version: 5.50.0
Operating System: Linux 4.15.0-33-generic x86_64
Distribution: KDE neon Developer Edition

-- Information about the crash:
Discovery crash then trying to open window for update

The crash can be reproduced every time.

-- 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 0x7fc73706dc80 (LWP 17032))]

Thread 13 (Thread 0x7fc6dc445700 (LWP 17050)):
#0  0x00007ffcc0964b1c in clock_gettime ()
#1  0x00007fc732600ea6 in __GI___clock_gettime (clock_id=1, tp=0x7fc6dc444b10) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007fc732f243a1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fc732f22bd9 in QTimerInfoList::updateCurrentTime() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc732f231b5 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc732f247fe in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc72cb53998 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fc72cb5436b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fc72cb5454c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fc732f24a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fc732ec8dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fc732cf3b8a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fc732cfeaab in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fc72ecef6db in start_thread (arg=0x7fc6dc445700) at pthread_create.c:463
#14 0x00007fc7325f188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fc6e7fff700 (LWP 17047)):
#0  0x00007fc7325e4bf9 in __GI___poll (fds=0x7fc6e0004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc72cb54439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc72cb5454c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc732f24a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fc732ec8dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc732cf3b8a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc7360ee906 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fc732cfeaab in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fc72ecef6db in start_thread (arg=0x7fc6e7fff700) at pthread_create.c:463
#9  0x00007fc7325f188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fc7048aa700 (LWP 17044)):
#0  0x00007fc72ecf59f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555f1fce3fa8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc72ecf59f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x555f1fce3f58, cond=0x555f1fce3f80) at pthread_cond_wait.c:502
#2  0x00007fc72ecf59f3 in __pthread_cond_wait (cond=0x555f1fce3f80, mutex=0x555f1fce3f58) at pthread_cond_wait.c:655
#3  0x00007fc710d9192b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc710d91657 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc72ecef6db in start_thread (arg=0x7fc7048aa700) at pthread_create.c:463
#6  0x00007fc7325f188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fc7050ab700 (LWP 17043)):
#0  0x00007fc72ecf59f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555f1fce3fa8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc72ecf59f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x555f1fce3f58, cond=0x555f1fce3f80) at pthread_cond_wait.c:502
#2  0x00007fc72ecf59f3 in __pthread_cond_wait (cond=0x555f1fce3f80, mutex=0x555f1fce3f58) at pthread_cond_wait.c:655
#3  0x00007fc710d9192b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc710d91657 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc72ecef6db in start_thread (arg=0x7fc7050ab700) at pthread_create.c:463
#6  0x00007fc7325f188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fc7058ac700 (LWP 17042)):
#0  0x00007fc72ecf59f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555f1fce3e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc72ecf59f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x555f1fce3e48, cond=0x555f1fce3e70) at pthread_cond_wait.c:502
#2  0x00007fc72ecf59f3 in __pthread_cond_wait (cond=0x555f1fce3e70, mutex=0x555f1fce3e48) at pthread_cond_wait.c:655
#3  0x00007fc710d9192b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc710d91657 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc72ecef6db in start_thread (arg=0x7fc7058ac700) at pthread_create.c:463
#6  0x00007fc7325f188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fc7060ad700 (LWP 17041)):
#0  0x00007fc72ecf59f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555f1fce3e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc72ecf59f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x555f1fce3e48, cond=0x555f1fce3e70) at pthread_cond_wait.c:502
#2  0x00007fc72ecf59f3 in __pthread_cond_wait (cond=0x555f1fce3e70, mutex=0x555f1fce3e48) at pthread_cond_wait.c:655
#3  0x00007fc710d9192b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc710d91657 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc72ecef6db in start_thread (arg=0x7fc7060ad700) at pthread_create.c:463
#6  0x00007fc7325f188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fc7068ae700 (LWP 17040)):
#0  0x00007fc72ecf59f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555f1fce3e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc72ecf59f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x555f1fce3e48, cond=0x555f1fce3e70) at pthread_cond_wait.c:502
#2  0x00007fc72ecf59f3 in __pthread_cond_wait (cond=0x555f1fce3e70, mutex=0x555f1fce3e48) at pthread_cond_wait.c:655
#3  0x00007fc710d9192b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc710d91657 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc72ecef6db in start_thread (arg=0x7fc7068ae700) at pthread_create.c:463
#6  0x00007fc7325f188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fc7070af700 (LWP 17039)):
#0  0x00007fc72ecf59f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555f1fa98880) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc72ecf59f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x555f1fa98830, cond=0x555f1fa98858) at pthread_cond_wait.c:502
#2  0x00007fc72ecf59f3 in __pthread_cond_wait (cond=0x555f1fa98858, mutex=0x555f1fa98830) at pthread_cond_wait.c:655
#3  0x00007fc710d9192b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc710d91657 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc72ecef6db in start_thread (arg=0x7fc7070af700) at pthread_create.c:463
#6  0x00007fc7325f188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fc707ee8700 (LWP 17038)):
#0  0x00007fc72ecf59f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555f1fce2df0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fc72ecf59f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x555f1fce2da0, cond=0x555f1fce2dc8) at pthread_cond_wait.c:502
#2  0x00007fc72ecf59f3 in __pthread_cond_wait (cond=0x555f1fce2dc8, mutex=0x555f1fce2da0) at pthread_cond_wait.c:655
#3  0x00007fc710d9192b in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007fc710d91657 in  () at /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007fc72ecef6db in start_thread (arg=0x7fc707ee8700) at pthread_create.c:463
#6  0x00007fc7325f188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fc71adee700 (LWP 17037)):
#0  0x00007fc72cb99cd0 in g_mutex_lock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc72cb53fc6 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc72cb544c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc72cb5454c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc732f24a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc732ec8dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc732cf3b8a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc7338988b5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fc732cfeaab in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fc72ecef6db in start_thread (arg=0x7fc71adee700) at pthread_create.c:463
#10 0x00007fc7325f188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fc71bfff700 (LWP 17036)):
#0  0x00007fc7326006ff in __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:67
#1  0x00007fc7325e4be6 in __GI___poll (fds=0x7fc714019100, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007fc72cb54439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc72cb5454c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc732f24a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc732ec8dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fc732cf3b8a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fc734bf1e45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007fc732cfeaab in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fc72ecef6db in start_thread (arg=0x7fc71bfff700) at pthread_create.c:463
#10 0x00007fc7325f188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fc7244e2700 (LWP 17035)):
#0  0x00007fc7325e4bf9 in __GI___poll (fds=0x7fc7244e1ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc72c8eb747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fc72c8ed36a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fc7274a3129 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fc732cfeaab in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fc72ecef6db in start_thread (arg=0x7fc7244e2700) at pthread_create.c:463
#6  0x00007fc7325f188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fc73706dc80 (LWP 17032)):
[KCrash Handler]
#6  0x00007fc73250ee97 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007fc732510801 in __GI_abort () at abort.c:79
#8  0x00007fc732559897 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7fc732686b9a "%s\n") at ../sysdeps/posix/libc_fatal.c:181
#9  0x00007fc73256090a in malloc_printerr (str=str@entry=0x7fc732684d88 "free(): invalid pointer") at malloc.c:5350
#10 0x00007fc732567e1c in _int_free (have_lock=0, p=0x555f22d60590, av=0x7fc7328bbc40 <main_arena>) at malloc.c:4157
#11 0x00007fc732567e1c in __GI___libc_free (mem=0x555f22d605a0) at malloc.c:3124
#12 0x00007fc732f01193 in QObject::~QObject() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fc6db129273 in KNSCore::Cache::readRegistry() () at /usr/lib/x86_64-linux-gnu/libKF5NewStuffCore.so.5
#14 0x00007fc6db133b49 in KNSCore::Engine::init(QString const&) () at /usr/lib/x86_64-linux-gnu/libKF5NewStuffCore.so.5
#15 0x00007fc6db395d5c in KNSBackend::KNSBackend(QObject*, QString const&, QString const&) () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/kns-backend.so
#16 0x00007fc6db3994bf in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/kns-backend.so
#17 0x00007fc735d8d637 in DiscoverBackendsFactory::backendForFile(QString const&, QString const&) const () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#18 0x00007fc735d8dccb in DiscoverBackendsFactory::backend(QString const&) const () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#19 0x00007fc735d8e12f in DiscoverBackendsFactory::allBackends() const () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#20 0x00007fc735d789ca in ResourcesModel::registerAllBackends() () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#21 0x00007fc735d9dfe5 in  () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#22 0x00007fc732efa642 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007fc7344e1e8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007fc7344e945f in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007fc732ecaab8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007fc732ecd5fd in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fc732f25453 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007fc72cb54287 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007fc72cb544c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007fc72cb5454c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007fc732f24a7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007fc72752ded1 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#33 0x00007fc732ec8dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007fc732ed1fa0 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x0000555f1dd88558 in  ()
#36 0x00007fc7324f1b97 in __libc_start_main (main=0x555f1dd87c80, argc=3, argv=0x7ffcc095a1f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffcc095a1e8) at ../csu/libc-start.c:310
#37 0x0000555f1dd887da in _start ()

Possible duplicates by query: bug 398549, bug 398488, bug 398464, bug 398463, bug 398461.

Reported using DrKonqi