Bug 403517

Summary: Discover crashing after startup with flatpak backend
Product: [Applications] Discover Reporter: nils.helmig
Component: discoverAssignee: Aleix Pol <aleixpol>
Status: RESOLVED WORKSFORME    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version First Reported In: 5.14.5   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description nils.helmig 2019-01-22 21:28:14 UTC 
Application: plasma-discover (5.14.5)

Qt Version: 5.12.0
Frameworks Version: 5.53.0
Operating System: Linux 4.20.1-1-MANJARO x86_64
Distribution: "Manjaro Linux"

-- Information about the crash:
After starting Discover the application freezes and then crashed

The crash can be reproduced every time.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fe28110bf80 (LWP 6974))]

Thread 14 (Thread 0x7fe2357fb700 (LWP 6993)):
[KCrash Handler]
#6  0x00007fe2843f5255 in g_slice_alloc () at /usr/lib/libglib-2.0.so.0
#7  0x00007fe2843d4d97 in g_variant_type_info_get () at /usr/lib/libglib-2.0.so.0
#8  0x00007fe2843d4e84 in g_variant_type_info_get () at /usr/lib/libglib-2.0.so.0
#9  0x00007fe2843d56ac in g_variant_serialised_get_child () at /usr/lib/libglib-2.0.so.0
#10 0x00007fe2843ddff6 in g_variant_get_child_value () at /usr/lib/libglib-2.0.so.0
#11 0x00007fe264d4f5f9 in  () at /usr/lib/libflatpak.so.0
#12 0x00007fe264d9b76d in flatpak_installation_fetch_remote_size_sync () at /usr/lib/libflatpak.so.0
#13 0x00007fe264e649d5 in  () at /usr/lib/qt/plugins/discover/flatpak-backend.so
#14 0x00007fe264e5fbde in  () at /usr/lib/qt/plugins/discover/flatpak-backend.so
#15 0x00007fe285f6d9a1 in  () at /usr/lib/libQt5Core.so.5
#16 0x00007fe285f699cc in  () at /usr/lib/libQt5Core.so.5
#17 0x00007fe284efea9d in start_thread () at /usr/lib/libpthread.so.0
#18 0x00007fe285c51b23 in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7fe2377fe700 (LWP 6990)):
#0  0x00007fe285c4c4ed in syscall () at /usr/lib/libc.so.6
#1  0x00007fe285f69c66 in QBasicMutex::lockInternal() () at /usr/lib/libQt5Core.so.5
#2  0x00007fe2856bb74e in  () at /usr/lib/libQt5Network.so.5
#3  0x00007fe2856bbf05 in  () at /usr/lib/libQt5Network.so.5
#4  0x00007fe28569cdb9 in QSslSocket::startClientEncryption() () at /usr/lib/libQt5Network.so.5
#5  0x00007fe28569dff1 in  () at /usr/lib/libQt5Network.so.5
#6  0x00007fe2856a43e1 in  () at /usr/lib/libQt5Network.so.5
#7  0x00007fe28615028c in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#8  0x00007fe2856677fe in  () at /usr/lib/libQt5Network.so.5
#9  0x00007fe28566a7c0 in  () at /usr/lib/libQt5Network.so.5
#10 0x00007fe285679e2d in  () at /usr/lib/libQt5Network.so.5
#11 0x00007fe28702ae34 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#12 0x00007fe287032671 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#13 0x00007fe2861258f9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#14 0x00007fe28617c226 in  () at /usr/lib/libQt5Core.so.5
#15 0x00007fe28441ba2f in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#16 0x00007fe28441d5e9 in  () at /usr/lib/libglib-2.0.so.0
#17 0x00007fe28441d62e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#18 0x00007fe28617b5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#19 0x00007fe28612458c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#20 0x00007fe285f685c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#21 0x00007fe285f699cc in  () at /usr/lib/libQt5Core.so.5
#22 0x00007fe284efea9d in start_thread () at /usr/lib/libpthread.so.0
#23 0x00007fe285c51b23 in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7fe237fff700 (LWP 6989)):
#0  0x00007fe285c4c4ed in syscall () at /usr/lib/libc.so.6
#1  0x00007fe285f69c66 in QBasicMutex::lockInternal() () at /usr/lib/libQt5Core.so.5
#2  0x00007fe2856bb74e in  () at /usr/lib/libQt5Network.so.5
#3  0x00007fe2856bbf05 in  () at /usr/lib/libQt5Network.so.5
#4  0x00007fe28569cdb9 in QSslSocket::startClientEncryption() () at /usr/lib/libQt5Network.so.5
#5  0x00007fe28569dff1 in  () at /usr/lib/libQt5Network.so.5
#6  0x00007fe2856a43e1 in  () at /usr/lib/libQt5Network.so.5
#7  0x00007fe28615028c in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#8  0x00007fe2856677fe in  () at /usr/lib/libQt5Network.so.5
#9  0x00007fe28566a7c0 in  () at /usr/lib/libQt5Network.so.5
#10 0x00007fe285679e2d in  () at /usr/lib/libQt5Network.so.5
#11 0x00007fe28702ae34 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#12 0x00007fe287032671 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#13 0x00007fe2861258f9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#14 0x00007fe28617c226 in  () at /usr/lib/libQt5Core.so.5
#15 0x00007fe28441ba2f in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#16 0x00007fe28441d5e9 in  () at /usr/lib/libglib-2.0.so.0
#17 0x00007fe28441d62e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#18 0x00007fe28617b5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#19 0x00007fe28612458c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#20 0x00007fe285f685c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#21 0x00007fe285f699cc in  () at /usr/lib/libQt5Core.so.5
#22 0x00007fe284efea9d in start_thread () at /usr/lib/libpthread.so.0
#23 0x00007fe285c51b23 in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7fe258d88700 (LWP 6988)):
#0  0x00007fe285c427a4 in read () at /usr/lib/libc.so.6
#1  0x00007fe2843cb971 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fe28441c0b0 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007fe28441d4e6 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fe28441d62e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007fe28617b5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fe28612458c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007fe267c8adb1 in  () at /usr/lib/qt/plugins/discover/fwupd-backend.so
#8  0x00007fe267c8b318 in  () at /usr/lib/qt/plugins/discover/fwupd-backend.so
#9  0x00007fe267c8d92f in  () at /usr/lib/qt/plugins/discover/fwupd-backend.so
#10 0x00007fe285f6d9a1 in  () at /usr/lib/libQt5Core.so.5
#11 0x00007fe285f699cc in  () at /usr/lib/libQt5Core.so.5
#12 0x00007fe284efea9d in start_thread () at /usr/lib/libpthread.so.0
#13 0x00007fe285c51b23 in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7fe25a779700 (LWP 6985)):
#0  0x00007fe285c4c4ed in syscall () at /usr/lib/libc.so.6
#1  0x00007fe285f6bd75 in QSemaphore::acquire(int) () at /usr/lib/libQt5Core.so.5
#2  0x00007fe28615052a in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#3  0x00007fe2856cf953 in  () at /usr/lib/libQt5Network.so.5
#4  0x00007fe2856d079d in  () at /usr/lib/libQt5Network.so.5
#5  0x00007fe28615028c in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#6  0x00007fe2856ce943 in  () at /usr/lib/libQt5Network.so.5
#7  0x00007fe28561ac38 in  () at /usr/lib/libQt5Network.so.5
#8  0x00007fe28561c43c in  () at /usr/lib/libQt5Network.so.5
#9  0x00007fe28615028c in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#10 0x00007fe28569bf73 in QSslSocket::preSharedKeyAuthenticationRequired(QSslPreSharedKeyAuthenticator*) () at /usr/lib/libQt5Network.so.5
#11 0x00007fe2856bb403 in  () at /usr/lib/libQt5Network.so.5
#12 0x00007fe284033a1e in  () at /usr/lib/libssl.so.1.1
#13 0x00007fe28403192a in  () at /usr/lib/libssl.so.1.1
#14 0x00007fe28403bd99 in  () at /usr/lib/libssl.so.1.1
#15 0x00007fe28403ac70 in  () at /usr/lib/libssl.so.1.1
#16 0x00007fe284026576 in SSL_do_handshake () at /usr/lib/libssl.so.1.1
#17 0x00007fe2856bbb26 in  () at /usr/lib/libQt5Network.so.5
#18 0x00007fe2856bbf05 in  () at /usr/lib/libQt5Network.so.5
#19 0x00007fe28569cdb9 in QSslSocket::startClientEncryption() () at /usr/lib/libQt5Network.so.5
#20 0x00007fe28569dff1 in  () at /usr/lib/libQt5Network.so.5
#21 0x00007fe2856a43e1 in  () at /usr/lib/libQt5Network.so.5
#22 0x00007fe28615028c in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#23 0x00007fe2856677fe in  () at /usr/lib/libQt5Network.so.5
#24 0x00007fe28566a7c0 in  () at /usr/lib/libQt5Network.so.5
#25 0x00007fe285679e2d in  () at /usr/lib/libQt5Network.so.5
#26 0x00007fe28702ae34 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#27 0x00007fe287032671 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#28 0x00007fe2861258f9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#29 0x00007fe28617c226 in  () at /usr/lib/libQt5Core.so.5
#30 0x00007fe28441ba2f in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#31 0x00007fe28441d5e9 in  () at /usr/lib/libglib-2.0.so.0
#32 0x00007fe28441d62e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#33 0x00007fe28617b5a9 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#34 0x00007fe28612458c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#35 0x00007fe285f685c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#36 0x00007fe285f699cc in  () at /usr/lib/libQt5Core.so.5
#37 0x00007fe284efea9d in start_thread () at /usr/lib/libpthread.so.0
#38 0x00007fe285c51b23 in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7fe25bfff700 (LWP 6982)):
#0  0x00007fe2843cb424 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007fe28441bfaa in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007fe28441d4e6 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007fe28441d62e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007fe28617b5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fe28612458c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fe285f685c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007fe285f699cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fe284efea9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fe285c51b23 in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7fe26567a700 (LWP 6981)):
#0  0x00007fe285c46c21 in poll () at /usr/lib/libc.so.6
#1  0x00007fe28441d540 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fe28441e5c2 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#3  0x00007fe267464cb8 in  () at /usr/lib/libgio-2.0.so.0
#4  0x00007fe2843f867b in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007fe284efea9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fe285c51b23 in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7fe265e7b700 (LWP 6980)):
#0  0x00007fe285c427a4 in read () at /usr/lib/libc.so.6
#1  0x00007fe2843cb971 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fe28441c0b0 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007fe28441d4e6 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fe28441d62e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007fe28441d682 in  () at /usr/lib/libglib-2.0.so.0
#6  0x00007fe2843f867b in  () at /usr/lib/libglib-2.0.so.0
#7  0x00007fe284efea9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007fe285c51b23 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7fe26cc18700 (LWP 6979)):
#0  0x00007fe285c46c21 in poll () at /usr/lib/libc.so.6
#1  0x00007fe28441d540 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fe28441d62e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fe28617b5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fe28612458c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fe285f685c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fe287aace5b in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007fe285f699cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fe284efea9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fe285c51b23 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7fe26df03700 (LWP 6978)):
#0  0x00007fe284f04afc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fe26e519c24 in  () at /usr/lib/dri/i965_dri.so
#2  0x00007fe26e519948 in  () at /usr/lib/dri/i965_dri.so
#3  0x00007fe284efea9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fe285c51b23 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fe27cd31700 (LWP 6977)):
#0  0x00007fe284414037 in g_main_context_query () at /usr/lib/libglib-2.0.so.0
#1  0x00007fe28441d4bc in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fe28441d62e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fe28617b5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fe28612458c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fe285f685c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fe28678ab89 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007fe285f699cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fe284efea9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fe285c51b23 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fe27df42700 (LWP 6976)):
#0  0x00007fe28617b298 in  () at /usr/lib/libQt5Core.so.5
#1  0x00007fe28441ce0a in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007fe28441d466 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007fe28441d62e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007fe28617b5c4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fe28612458c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fe285f685c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007fe287554ba6 in  () at /usr/lib/libQt5DBus.so.5
#8  0x00007fe285f699cc in  () at /usr/lib/libQt5Core.so.5
#9  0x00007fe284efea9d in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007fe285c51b23 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fe27fc9d700 (LWP 6975)):
#0  0x00007fe285c46c21 in poll () at /usr/lib/libc.so.6
#1  0x00007fe284320630 in  () at /usr/lib/libxcb.so.1
#2  0x00007fe2843222db in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007fe280c8496b in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fe285f699cc in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fe284efea9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fe285c51b23 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fe28110bf80 (LWP 6974)):
#0  0x00007fe285c4c4ed in syscall () at /usr/lib/libc.so.6
#1  0x00007fe2843cb39d in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fe264c9e1fb in as_stemmer_process () at /usr/lib/libappstream-glib.so.8
#3  0x00007fe264c9e351 in  () at /usr/lib/libappstream-glib.so.8
#4  0x00007fe2673cb802 in g_type_create_instance () at /usr/lib/libgobject-2.0.so.0
#5  0x00007fe2673e8259 in  () at /usr/lib/libgobject-2.0.so.0
#6  0x00007fe2673e975d in g_object_new_with_properties () at /usr/lib/libgobject-2.0.so.0
#7  0x00007fe2673e986a in g_object_new () at /usr/lib/libgobject-2.0.so.0
#8  0x00007fe264c953c4 in as_store_new () at /usr/lib/libappstream-glib.so.8
#9  0x00007fe264d4b4ee in  () at /usr/lib/libflatpak.so.0
#10 0x00007fe264d519bb in  () at /usr/lib/libflatpak.so.0
#11 0x00007fe264d5c4c7 in  () at /usr/lib/libflatpak.so.0
#12 0x00007fe264d98902 in  () at /usr/lib/libflatpak.so.0
#13 0x00007fe264d99644 in flatpak_installation_get_installed_ref () at /usr/lib/libflatpak.so.0
#14 0x00007fe264e563b1 in  () at /usr/lib/qt/plugins/discover/flatpak-backend.so
#15 0x00007fe264e56a81 in  () at /usr/lib/qt/plugins/discover/flatpak-backend.so
#16 0x00007fe264e5beed in  () at /usr/lib/qt/plugins/discover/flatpak-backend.so
#17 0x00007fe264e5c979 in  () at /usr/lib/qt/plugins/discover/flatpak-backend.so
#18 0x00007fe2861503e0 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#19 0x00007fe285f742e5 in QFutureWatcherBase::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#20 0x00007fe28702ae34 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#21 0x00007fe287032671 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#22 0x00007fe2861258f9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#23 0x00007fe286128998 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#24 0x00007fe28617bfd4 in  () at /usr/lib/libQt5Core.so.5
#25 0x00007fe28441ba2f in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#26 0x00007fe28441d5e9 in  () at /usr/lib/libglib-2.0.so.0
#27 0x00007fe28441d62e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#28 0x00007fe28617b5a9 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#29 0x00007fe28612458c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#30 0x00007fe28612c896 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#31 0x000055ac2ffbb616 in  ()
#32 0x00007fe285b7a223 in __libc_start_main () at /usr/lib/libc.so.6
#33 0x000055ac2ffbbbde in _start ()
[Inferior 1 (process 6974) detached]

Reported using DrKonqi
Comment 1 Aleix Pol 2019-02-15 16:03:49 UTC 
Which flatpak version do you have installed?
Comment 2 nils.helmig 2019-02-18 11:42:07 UTC 
(In reply to Aleix Pol from comment #1)
> Which flatpak version do you have installed?

I'm sorry! I forgot to add the version in the bug report. Since then I've got an update and have now the version 1.1.3 running. With this version Discover is running fine :)
I think the version 1.1.0 was running at that time.
Comment 3 Bug Janitor Service 2019-03-05 04:33:08 UTC 
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 4 Christoph Feck 2019-03-08 20:13:07 UTC 
Thanks for the update; changing status. Please let us know if you still see issues with Discover.