https://bugs.kde.org/show_bug.cgi?id=504206

            Bug ID: 504206
           Summary: kwalletd6 crashes every time after log out
    Classification: Plasma
           Product: plasmashell
           Version: 6.3.4
          Platform: Manjaro
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: plasma-b...@kde.org
          Reporter: christian_gru...@gmx.de
                CC: k...@davidedmundson.co.uk
  Target Milestone: 1.0

Created attachment 181286
  --> https://bugs.kde.org/attachment.cgi?id=181286&action=edit
kwalletd6 core dump info

SUMMARY

On my system, the kwalletd6 reproducibly crashes on each log out. This does not
happen when I shut down my system without explicitly logging out first. I'm not
sure if this is an issue with kwalletd6 or with the logout process. I currently
assigned this crash report to the Plasma shell due to its relation to the
logout process.

The journal contains the following logs related to kwalletd6:
2025-05-13T23:25:14+02:00 kwalletd6[1197]: The X11 connection broke (error 1).
Did the X11 server die?
2025-05-13T23:25:14+02:00 systemd-coredump[5819]: Process 1197 (kwalletd6) of
user 1026 terminated abnormally with signal 11/SEGV, processing...
2025-05-13T23:25:15+02:00 drkonqi-coredump-processor[5821]:
"/usr/bin/kwalletd6" 1197
"/var/lib/systemd/coredump/core.kwalletd6.1026.ee93e255821a4520abd8760421bd3265.1197.1747171514000000.zst"

Presumably, as a result of this crash, drkonqi also crashes directly after
kwalletd6. This is reproducible as well.

The journal contains the following logs related to drkonqui:
2025-05-13T23:25:16+02:00 drkonqi[5837]: qt.qpa.xcb: could not connect to
display :0
2025-05-13T23:25:16+02:00 drkonqi[5837]: qt.qpa.plugin: From 6.5.0, xcb-cursor0
or libxcb-cursor0 is needed to load the Qt xcb platform plugin.
2025-05-13T23:25:16+02:00 drkonqi[5837]: qt.qpa.plugin: Could not load the Qt
platform plugin "xcb" in "" even though it was found.
2025-05-13T23:25:16+02:00 drkonqi[5837]: This application failed to start
because no Qt platform plugin could be initialized. Reinstalling the
application may fix this problem. Available platform plugins are: eglfs,
minimal, minimalegl, vkkhrdisplay, wayland-egl, linuxfb, vnc, offscreen,
wayland, xcb.
2025-05-13T23:25:16+02:00 systemd-coredump[5848]: Process 5837 (drkonqi) of
user 1026 terminated abnormally with signal 6/ABRT, processing...

Due to the file size limit, I added core dump info only at the moment, but I
can also provide the core dumps itself on request.

SOFTWARE/OS VERSIONS

KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.13.0
Qt Version: 6.9.0
Kernel Version: 6.12.25-1-MANJARO (64-bit)
Graphics platform: X11

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