Bug 380987

Application: plasma-discover (5.10.0)

Qt Version: 5.9.0
Frameworks Version: 5.34.0
Operating System: Linux 4.10.9-1 x86_64
Distribution: "KaOS"

-- Information about the crash:
Was using the execute command alt + space, "discover" and the app seems to open but then crash immediately after.

The crash can be reproduced every time.

-- Backtrace:
Application: Découvrir (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2251266800 (LWP 7778))]

Thread 5 (Thread 0x7f2229bea700 (LWP 7788)):
#0  0x00007f224d4d7fd7 in poll () at /lib/libc.so.6
#1  0x00007f2246cd2cf4 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f2246cd2dfc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f224e0eea6b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f224e09b71a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f224decfddc in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f22508c7752 in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007f224ded458a in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f224c313494 in start_thread () at /lib/libpthread.so.0
#9  0x00007f224d4e16ff in clone () at /lib/libc.so.6

Thread 4 (Thread 0x7f2232b62700 (LWP 7786)):
#0  0x00007f224d4d7ffd in poll () at /lib/libc.so.6
#1  0x00007f2246cd2cf4 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f2246cd2dfc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f224e0eea6b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f224e09b71a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f224decfddc in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f224e8bc135 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f224ded458a in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f224c313494 in start_thread () at /lib/libpthread.so.0
#9  0x00007f224d4e16ff in clone () at /lib/libc.so.6

Thread 3 (Thread 0x7f2233d73700 (LWP 7785)):
#0  0x00007f224d4d7ffd in poll () at /lib/libc.so.6
#1  0x00007f2246cd2cf4 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f2246cd2dfc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f224e0eea6b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f224e09b71a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f224decfddc in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f22513b9a45 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f224ded458a in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f224c313494 in start_thread () at /lib/libpthread.so.0
#9  0x00007f224d4e16ff in clone () at /lib/libc.so.6

Thread 2 (Thread 0x7f223f4fb700 (LWP 7779)):
#0  0x00007f224d4d7ffd in poll () at /lib/libc.so.6
#1  0x00007f2246a6f892 in  () at /usr/lib/libxcb.so.1
#2  0x00007f2246a715e7 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f2241a85a99 in  () at /usr/lib/qt5/plugins/platforms/../../../libQt5XcbQpa.so.5
#4  0x00007f224ded458a in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f224c313494 in start_thread () at /lib/libpthread.so.0
#6  0x00007f224d4e16ff in clone () at /lib/libc.so.6

Thread 1 (Thread 0x7f2251266800 (LWP 7778)):
[KCrash Handler]
#5  0x00007f22291c9403 in  () at /usr/lib/qt5/plugins/discover/flatpak-backend.so
#6  0x00007f22291cef05 in  () at /usr/lib/qt5/plugins/discover/flatpak-backend.so
#7  0x00007f22291d117b in  () at /usr/lib/qt5/plugins/discover/flatpak-backend.so
#8  0x00007f225057230d in DiscoverBackendsFactory::backendForFile(QString const&, QString const&) const () at /usr/lib/plasma-discover/libDiscoverCommon.so
#9  0x00007f2250572952 in DiscoverBackendsFactory::backend(QString const&) const () at /usr/lib/plasma-discover/libDiscoverCommon.so
#10 0x00007f2250572ab1 in DiscoverBackendsFactory::allBackends() const () at /usr/lib/plasma-discover/libDiscoverCommon.so
#11 0x00007f225055e7e7 in ResourcesModel::registerAllBackends() () at /usr/lib/plasma-discover/libDiscoverCommon.so
#12 0x00007f224e0c8011 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#13 0x00007f224f071aac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#14 0x00007f224f078ed7 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#15 0x00007f224e09cfa8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#16 0x00007f224e09f38b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#17 0x00007f224e0ee643 in  () at /usr/lib/libQt5Core.so.5
#18 0x00007f2246cd2b27 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#19 0x00007f2246cd2d58 in  () at /usr/lib/libglib-2.0.so.0
#20 0x00007f2246cd2dfc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#21 0x00007f224e0eea4f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#22 0x00007f224e09b71a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#23 0x00007f224e0a3b74 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#24 0x000000000040d356 in  ()
#25 0x00007f224d4194f0 in __libc_start_main () at /lib/libc.so.6
#26 0x000000000040d50a in _start ()

Reported using DrKonqi