Bug 392390

Summary: Discover crashed every time I open Discover settings
Product: [Applications] Discover Reporter: sasadrmic032
Component: discoverAssignee: Aleix Pol <aleixpol>
Status: RESOLVED WORKSFORME    
Severity: normal CC: bugseforuns
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.12.2   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description sasadrmic032 2018-03-27 06:29:04 UTC 
Application: plasma-discover (5.12.2)

Qt Version: 5.10.0
Frameworks Version: 5.44.0
Operating System: Linux 4.13.0-37-generic x86_64
Distribution: KDE neon User Edition 5.12

-- Information about the crash:
Whenever I go to Discover and click on Settings, Discover crashes. This happens since 27 March updates.

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 0x7f3e218ac8c0 (LWP 1700))]

Thread 7 (Thread 0x7f3de31e2700 (LWP 1710)):
#0  0x00007f3e1cced27d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f3e177e76f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3e177a3e74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3e177a4330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3e177a449c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3e1d92d5cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3e1d8d464a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3e1d6f4554 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3e1d6f96eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3e1989c6ba in start_thread (arg=0x7f3de31e2700) at pthread_create.c:333
#10 0x00007f3e1ccfd41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f3de8cee700 (LWP 1707)):
#0  0x00007f3e177e8653 in g_private_get () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3e177cb060 in g_thread_self () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3e177a330c in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3e177a4245 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3e177a449c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3e1d92d5cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3e1d8d464a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3e1d6f4554 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3e1d6f96eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3e1989c6ba in start_thread (arg=0x7f3de8cee700) at pthread_create.c:333
#10 0x00007f3e1ccfd41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f3deaae6700 (LWP 1706)):
#0  0x00007fffa09d2979 in ?? ()
#1  0x00007fffa09d2cb8 in clock_gettime ()
#2  0x00007f3e1cd0b876 in __GI___clock_gettime (clock_id=1, tp=0x7f3deaae5a60) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007f3e1d92ced1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3e1d92b6c9 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3e1d92bc35 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3e1d92d33e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3e177a391d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f3e177a42bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f3e177a449c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f3e1d92d5cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f3e1d8d464a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f3e1d6f4554 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f3e1d6f96eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f3e1989c6ba in start_thread (arg=0x7f3deaae6700) at pthread_create.c:333
#15 0x00007f3e1ccfd41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f3df48d2700 (LWP 1705)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:65
#1  0x00007f3e1ccf1742 in poll () at ../sysdeps/unix/syscall-template.S:84
#2  0x00007f3e177a438c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3e177a449c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3e1d92d5cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3e1d8d464a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3e1d6f4554 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3e20aed1c6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f3e1d6f96eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3e1989c6ba in start_thread (arg=0x7f3df48d2700) at pthread_create.c:333
#10 0x00007f3e1ccfd41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f3dfffff700 (LWP 1704)):
#0  0x00007f3e177a38c3 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3e177a42bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3e177a449c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3e1d92d5cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3e1d8d464a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3e1d6f4554 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3e1e2cfa35 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f3e1d6f96eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3e1989c6ba in start_thread (arg=0x7f3dfffff700) at pthread_create.c:333
#9  0x00007f3e1ccfd41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f3e053bc700 (LWP 1703)):
#0  0x00007f3e177a3bc8 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3e177a4307 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3e177a449c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3e1d92d5cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3e1d8d464a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3e1d6f4554 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3e1f5f52c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f3e1d6f96eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3e1989c6ba in start_thread (arg=0x7f3e053bc700) at pthread_create.c:333
#9  0x00007f3e1ccfd41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f3e218ac8c0 (LWP 1700)):
[KCrash Handler]
#6  0x00007f3e1d901140 in QObject::sender() const () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3dec3c1b79 in PackageKitBackend::transactionError(PackageKit::Transaction::Error, QString const&) () from /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/packagekit-backend.so
#8  0x00007f3e2078e01c in AbstractResourcesBackend::Filters::shouldFilter(AbstractResource*) const () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#9  0x00007f3e2078e1cd in AbstractResourcesBackend::Filters::filterJustInCase(QVector<AbstractResource*>&) const () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#10 0x00007f3e20784eca in ResourcesProxyModel::addResources(QVector<AbstractResource*> const&) () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#11 0x00007f3e1d9037b6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f3e2079d5c2 in ResultsStream::resourcesFound(QVector<AbstractResource*> const&) () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#13 0x00007f3e2077dbd0 in AggregatedResultsStream::emitResults() () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#14 0x00007f3e2077dc29 in AggregatedResultsStream::clear() () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#15 0x00007f3e2077ee43 in AggregatedResultsStream::destruction(QObject*) () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#16 0x00007f3e1d9037b6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f3e1d903e3f in QObject::destroyed(QObject*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f3e1d90aaf5 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f3e2078dc19 in ResultsStream::~ResultsStream() () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#20 0x00007f3e1d904500 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f3e1eedbacc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f3e1eee3417 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f3e1d8d63c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f3e1d8d8fcb in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f3e1d92dfa3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f3e177a4197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f3e177a43f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f3e177a449c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f3e1d92d5af in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f3e108e01a1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#31 0x00007f3e1d8d464a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007f3e1d8dd854 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x0000000000411fbf in ?? ()
#34 0x00007f3e1cc16830 in __libc_start_main (main=0x411580, argc=1, argv=0x7fffa0937d58, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffa0937d48) at ../csu/libc-start.c:291
#35 0x00000000004120b9 in _start ()

Reported using DrKonqi
Comment 1 Aleix Pol 2018-03-27 15:32:18 UTC 
Can you please install debug symbols and provide a backtrace?

you can do it by using "sudo apt install plasma-discover.*dbgsym"
Comment 2 sasadrmic032 2018-03-27 18:35:10 UTC 
I found the problem. I messed up my /etc/apt/source.list.d/neon.list file. Sorry. It was my fault.