FS#77764 - [plasma-desktop] kwin_wayland segfault in combination with kscreenlocker

Attached to Project: Arch Linux
Opened by Ike Devolder (BlackEagle) - Tuesday, 07 March 2023, 16:00 GMT
Last edited by Antonio Rojas (arojas) - Monday, 27 March 2023, 15:01 GMT
Task Type Bug Report
Category Packages: Extra
Status Closed
Assigned To Antonio Rojas (arojas)
Architecture All
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description: I get a kwin_wayland segfault at the moment I use my kvm switch to switch machines, once kscreenlocker gets activated on the machine where we just disconnected the screen it seems after some time kwin_wayland segfaults. If I enable presentation mode the issue does not appear, so therefore the link to kscreenlocker


Additional info:
* package version(s)
* config and/or log files etc.
* link to upstream bug report, if any

Maybe related package updates:
upgraded qt5-location (5.15.8+kde+r3-1 -> 5.15.8+kde+r4-2)
upgraded qt5-wayland (5.15.8+kde+r59-1 -> 5.15.8+kde+r60-1)
upgraded libkscreen (5.27.2-1 -> 5.27.2-2)


Steps to reproduce: switch to other machine with kvm switch (maybe reproducible with screen disconnect)

debug trace: kwin_wayland-crash-backtrace.txt
   kwin_wayland-crash-backtrace.... (5.5 KiB)
This task depends upon

Closed by  Antonio Rojas (arojas)
Monday, 27 March 2023, 15:01 GMT
Reason for closing:  Fixed
Additional comments about closing:  kwin 5.27.3-2
Comment by Ike Devolder (BlackEagle) - Wednesday, 08 March 2023, 08:20 GMT
The crash is not always instant, sometimes the machine is already screenlocked for between 5 and 10 minutes before the kwin_wayland crash happens
Comment by Ike Devolder (BlackEagle) - Friday, 17 March 2023, 09:07 GMT
Another crash, now with kwin 5.27.3

also the coredump if that is more usefull: https://herecura.eu/files/core.kwin_wayland.1000.c3f48a02ddc943c78a98154389be6d27.1817.1679034734000000.zst
   kwin_wayland-crash-backtrace-... (18.5 KiB)
Comment by Ike Devolder (BlackEagle) - Friday, 17 March 2023, 18:49 GMT
This seems to be the same issue in the upstream bugtracker: https://bugs.kde.org/show_bug.cgi?id=467234

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