If Discover opens at startup (sometimes if opened manually as well) it throws a crash notification, but continues fetching updates and does not actually crash or close. This happens often (but not regularly) since approx. Nov 1.
Finally I managed to catch it on my VM.
PID: 2005 (DiscoverNotifie)
UID: 1000 (alex)
GID: 1000 (alex)
Signal: 11 (SEGV)
Timestamp: Mon 2025-11-10 22:37:30 EET (3min 43s ago)
Command Line: /usr/lib/DiscoverNotifier --check-delay 20
Executable: /usr/lib/DiscoverNotifier
Control Group: /user.slice/user-1000.slice/user@1000.service/app.slice/app-org.kde.discover.notifier@autostart.service
Unit: user@1000.service
User Unit: app-org.kde.discover.notifier@autostart.service
Slice: user-1000.slice
Owner UID: 1000 (alex)
Boot ID: 47893e050c36445b9f0a4d867d4ab829
Machine ID: 15e2cfde087f4d1487bd469bb0511c9b
Hostname: alex-vmware201
Storage: /var/lib/systemd/coredump/core.DiscoverNotifie.1000.47893e050c36445b9f0a4d867d4ab829.2005.1762807050000000.zst (present)
Size on Disk: 3.5M
Message: Process 2005 (DiscoverNotifie) of user 1000 dumped core.
Stack trace of thread 2005:
#0 0x00007f29b297f94c n/a (libc.so.6 + 0x9894c)
#1 0x00007f29b2925410 raise (libc.so.6 + 0x3e410)
#2 0x00007f29b413de50 _ZN6KCrash19defaultCrashHandlerEi (libKF6Crash.so.6 + 0x7e50)
#3 0x00007f29b2925540 n/a (libc.so.6 + 0x3e540)
#4 0x00007f299ddd2e4d flatpak_installation_create_monitor (libflatpak.so.0 + 0x7ae4d)
#5 0x00007f29ac10801f n/a (FlatpakNotifier.so + 0x501f)
#6 0x000055b9db6d1997 n/a (/usr/lib/DiscoverNotifier + 0xd997)
#7 0x00007f29b2f6716f n/a (libQt6Core.so.6 + 0x1d716f)
#8 0x00007f29b2f6dbd2 n/a (libQt6Core.so.6 + 0x1ddbd2)
#9 0x00007f29b2f544f6 _ZN7QObject5eventEP6QEvent (libQt6Core.so.6 + 0x1c44f6)
#10 0x00007f29b42c80a0 _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt6Widgets.so.6 + 0x1020a0)
#11 0x00007f29b2efa6c8 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt6Core.so.6 + 0x16a6c8)
#12 0x00007f29b30bc6af _ZN14QTimerInfoList14activateTimersEv (libQt6Core.so.6 + 0x32c6af)
#13 0x00007f29b31dda99 n/a (libQt6Core.so.6 + 0x44da99)
#14 0x00007f29b1899f8d n/a (libglib-2.0.so.0 + 0x5ef8d)
#15 0x00007f29b189b657 n/a (libglib-2.0.so.0 + 0x60657)
#16 0x00007f29b189b865 g_main_context_iteration (libglib-2.0.so.0 + 0x60865)
#17 0x00007f29b31da9d2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x44a9d2)
#18 0x00007f29b2f05a86 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x175a86)
#19 0x00007f29b2eff171 _ZN16QCoreApplication4execEv (libQt6Core.so.6 + 0x16f171)
#20 0x000055b9db6cdb6a n/a (/usr/lib/DiscoverNotifier + 0x9b6a)
#21 0x00007f29b290e675 n/a (libc.so.6 + 0x27675)
#22 0x00007f29b290e729 __libc_start_main (libc.so.6 + 0x27729)
#23 0x000055b9db6ce395 n/a (/usr/lib/DiscoverNotifier + 0xa395)
Stack trace of thread 2020:
#0 0x00007f29b2986042 n/a (libc.so.6 + 0x9f042)
#1 0x00007f29b297a1ac n/a (libc.so.6 + 0x931ac)
#2 0x00007f29b297a1f4 n/a (libc.so.6 + 0x931f4)
#3 0x00007f29b29f44ee __poll (libc.so.6 + 0x10d4ee)
#4 0x00007f29ae1ced35 n/a (libQt6WaylandClient.so.6 + 0x6bd35)
#5 0x00007f29b30c0ca9 n/a (libQt6Core.so.6 + 0x330ca9)
#6 0x00007f29b297d9cb n/a (libc.so.6 + 0x969cb)
#7 0x00007f29b2a01a0c n/a (libc.so.6 + 0x11aa0c)
Stack trace of thread 2015:
#0 0x00007f29b2986042 n/a (libc.so.6 + 0x9f042)
#1 0x00007f29b297a1ac n/a (libc.so.6 + 0x931ac)
#2 0x00007f29b297a1f4 n/a (libc.so.6 + 0x931f4)
#3 0x00007f29b29f4a36 ppoll (libc.so.6 + 0x10da36)
#4 0x00007f29b189b784 n/a (libglib-2.0.so.0 + 0x60784)
#5 0x00007f29b189b865 g_main_context_iteration (libglib-2.0.so.0 + 0x60865)
#6 0x00007f29b31da9d2 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x44a9d2)
#7 0x00007f29b2f05a86 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x175a86)
#8 0x00007f29b301af7e _ZN7QThread4execEv (libQt6Core.so.6 + 0x28af7e)
#9 0x00007f29b340263e n/a (libQt6DBus.so.6 + 0x3763e)
#10 0x00007f29b30c0ca9 n/a (libQt6Core.so.6 + 0x330ca9)
#11 0x00007f29b297d9cb n/a (libc.so.6 + 0x969cb)
#12 0x00007f29b2a01a0c n/a (libc.so.6 + 0x11aa0c)
Stack trace of thread 2021:
#0 0x00007f29b2986042 n/a (libc.so.6 + 0x9f042)
#1 0x00007f29b297a1ac n/a (libc.so.6 + 0x931ac)
#2 0x00007f29b297a1f4 n/a (libc.so.6 + 0x931f4)
#3 0x00007f29b29f44ee __poll (libc.so.6 + 0x10d4ee)
#4 0x00007f29ae1ced35 n/a (libQt6WaylandClient.so.6 + 0x6bd35)
#5 0x00007f29b30c0ca9 n/a (libQt6Core.so.6 + 0x330ca9)
#6 0x00007f29b297d9cb n/a (libc.so.6 + 0x969cb)
#7 0x00007f29b2a01a0c n/a (libc.so.6 + 0x11aa0c)
ELF object binary architecture: AMD x86-64
I think you are hitting: https://bugs.kde.org/show_bug.cgi?id=511602
Which should be fixed with the next kde linux update.
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