https://bugs.kde.org/show_bug.cgi?id=432492

Nate Graham <n...@kde.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|discover                    |Flatpak Backend
             Status|CONFIRMED                   |NEEDSINFO
                 CC|                            |jgrul...@redhat.com,
                   |                            |n...@kde.org
         Resolution|---                         |BACKTRACE

--- Comment #4 from Nate Graham <n...@kde.org> ---
Crash is somewhere in the flatpak backend:


[KCrash Handler]
#4  0x00007f82e8f1ed46 in g_slice_alloc () at /usr/lib/libglib-2.0.so.0
#5  0x00007f82e8f1f3a7 in g_slist_prepend () at /usr/lib/libglib-2.0.so.0
#6  0x00007f82e8879764 in  () at /usr/lib/libgobject-2.0.so.0
#7  0x00007f82e885a6fa in  () at /usr/lib/libgobject-2.0.so.0
#8  0x00007f82e88600c4 in  () at /usr/lib/libgobject-2.0.so.0
#9  0x00007f82e88618a4 in g_object_new_valist () at
/usr/lib/libgobject-2.0.so.0
#10 0x00007f82e8861c1a in g_object_new () at /usr/lib/libgobject-2.0.so.0
#11 0x00007f82c876cc01 in  () at /usr/lib/libflatpak.so.0
#12 0x00007f82c8767c33 in  () at /usr/lib/libflatpak.so.0
#13 0x00007f82c8768b49 in flatpak_installation_get_installed_ref () at
/usr/lib/libflatpak.so.0
#14 0x00007f82d41cfb0d in  () at
/usr/lib/qt/plugins/discover/flatpak-backend.so
#15 0x00007f82d41d5a4d in  () at
/usr/lib/qt/plugins/discover/flatpak-backend.so
#16 0x00007f82d41d63b7 in  () at
/usr/lib/qt/plugins/discover/flatpak-backend.so
#17 0x00007f82d41d65e3 in  () at
/usr/lib/qt/plugins/discover/flatpak-backend.so
#18 0x00007f82d41d7562 in  () at
/usr/lib/qt/plugins/discover/flatpak-backend.so
#19 0x00007f82eaaefdd6 in  () at /usr/lib/libQt5Core.so.5
#20 0x00007f82ea8db525 in QFutureWatcherBase::event(QEvent*) () at
/usr/lib/libQt5Core.so.5
#21 0x00007f82eba76752 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/libQt5Widgets.so.5
#22 0x00007f82eaab8a7a in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/libQt5Core.so.5
#23 0x00007f82eaabb573 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#24 0x00007f82eab120a4 in  () at /usr/lib/libQt5Core.so.5
#25 0x00007f82e8effa84 in g_main_context_dispatch () at
/usr/lib/libglib-2.0.so.0
#26 0x00007f82e8f539b1 in  () at /usr/lib/libglib-2.0.so.0
#27 0x00007f82e8efe2b1 in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#28 0x00007f82eab116e1 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#29 0x00007f82eaab73fc in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#30 0x00007f82eaabf894 in QCoreApplication::exec() () at
/usr/lib/libQt5Core.so.5
#31 0x000056506a7a18cc in  ()
#32 0x00007f82ea483152 in __libc_start_main () at /usr/lib/libc.so.6
#33 0x000056506a7a1e6e in _start ()
[Inferior 1 (process 7188) detached]


Unfortunately the crash log is missing debug symbols so it's impossible to tell
what's happening. Here are Arch's instructions for how you can produce useful
crash logs: https://wiki.archlinux.org/index.php/Debug_-_Getting_Traces

You'll need to recompile the packages for discover and its flatpak backend
after setting up your system for debug symbols, and then reproduce the crash
(or re-retrieve it using coredumpctl).

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