Bug 394370

Application: plasma-discover (5.12.4)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-20-generic x86_64
Distribution: Ubuntu 18.04 LTS

-- Information about the crash:
He was normally using the system when the package update notification appeared on the taskbar. I clicked to update and during this process discover suddenly closed.

-- 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 0x7f58e468bf40 (LWP 1308))]

Thread 8 (Thread 0x7f5893fff700 (LWP 1321)):
#0  0x00007f58dfd700b4 in __GI___libc_read (fd=14, buf=0x7f5893ffeb90, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f58da6a7960 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f58da662f27 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f58da6633e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f58da66354c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f58e06c290b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f58e06679ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f58e048622a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f58e048b16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f58dc5886db in start_thread (arg=0x7f5893fff700) at pthread_create.c:463
#10 0x00007f58dfd8188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f58ad73c700 (LWP 1315)):
#0  0x00007f58da6a8cf4 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f58da662988 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f58da66336b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f58da66354c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f58e06c290b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f58e06679ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f58e048622a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f58e048b16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f58dc5886db in start_thread (arg=0x7f58ad73c700) at pthread_create.c:463
#9  0x00007f58dfd8188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f58aecbd700 (LWP 1314)):
#0  0x00007f58dfd700b4 in __GI___libc_read (fd=15, buf=0x7f58aecbcb90, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f58da6a7960 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f58da662f27 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f58da6633e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f58da66354c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f58e06c290b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f58e06679ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f58e048622a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f58e048b16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f58dc5886db in start_thread (arg=0x7f58aecbd700) at pthread_create.c:463
#10 0x00007f58dfd8188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f58b82c8700 (LWP 1313)):
#0  0x00007f58da6a8cd9 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f58da6622e0 in g_main_context_acquire () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f58da6632f5 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f58da66354c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f58e06c290b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f58e06679ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f58e048622a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f58e38652a6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f58e048b16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f58dc5886db in start_thread (arg=0x7f58b82c8700) at pthread_create.c:463
#10 0x00007f58dfd8188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f58c35ef700 (LWP 1311)):
#0  0x00007f58dfd700b4 in __GI___libc_read (fd=9, buf=0x7f58c35eeb70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f58da6a7960 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f58da662f27 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f58da6633e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f58da66354c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f58e06c290b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f58e06679ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f58e048622a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f58e109c6f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f58e048b16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f58dc5886db in start_thread (arg=0x7f58c35ef700) at pthread_create.c:463
#11 0x00007f58dfd8188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f58c889b700 (LWP 1310)):
#0  0x00007f58dfd74bf9 in __GI___poll (fds=0x7f58c4019250, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f58da663439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f58da66354c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f58e06c290b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f58e06679ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f58e048622a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f58e2827d45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f58e048b16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f58dc5886db in start_thread (arg=0x7f58c889b700) at pthread_create.c:463
#9  0x00007f58dfd8188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f58d1d2f700 (LWP 1309)):
#0  0x00007f58dfd74bf9 in __GI___poll (fds=0x7f58d1d2eca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f58da3fa747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f58da3fc36a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f58d4adc2a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f58e048b16d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f58dc5886db in start_thread (arg=0x7f58d1d2f700) at pthread_create.c:463
#6  0x00007f58dfd8188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f58e468bf40 (LWP 1308)):
[KCrash Handler]
#6  0x000056045b634bc0 in ?? ()
#7  0x00007f58e350badf in AbstractResourcesBackend::Filters::shouldFilter(AbstractResource*) const () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#8  0x00007f58e350bded in AbstractResourcesBackend::Filters::filterJustInCase(QVector<AbstractResource*>&) const () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#9  0x00007f58e3503422 in ResourcesProxyModel::addResources(QVector<AbstractResource*> const&) () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#10 0x00007f58e06986cf in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f58e351c3d2 in ResultsStream::resourcesFound(QVector<AbstractResource*> const&) () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#12 0x00007f58e34fb5e0 in AggregatedResultsStream::emitResults() () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#13 0x00007f58e34fb639 in AggregatedResultsStream::clear() () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#14 0x00007f58e34fc7b3 in AggregatedResultsStream::destruction(QObject*) () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#15 0x00007f58e06986cf in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f58e0698d2f in QObject::destroyed(QObject*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f58e069f44a in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f58e350b6b9 in ResultsStream::~ResultsStream() () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#19 0x00007f58e0699140 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f58e1c7682c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f58e1c7e0f4 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f58e06699a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f58e066c11d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f58e06c32c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f58da663287 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f58da6634c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f58da66354c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f58e06c28ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f58e06679ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f58e0670a84 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x0000560453474f58 in ?? ()
#32 0x00007f58dfc81b97 in __libc_start_main (main=0x560453474680, argc=3, argv=0x7ffecfc5b998, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffecfc5b988) at ../csu/libc-start.c:310
#33 0x000056045347513a in _start ()

Possible duplicates by query: bug 393979, bug 393874, bug 392971, bug 390611, bug 390480.

Reported using DrKonqi