Bug 427822 - Crash back to login screen after moving the cursor over an open app in the panel
Summary: Crash back to login screen after moving the cursor over an open app in the panel
Status: RESOLVED WORKSFORME
Alias: None
Product: kwin
Classification: Plasma
Component: general (show other bugs)
Version: git master
Platform: Manjaro Linux
: NOR crash
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-10-16 18:41 UTC by Claudius Ellsel
Modified: 2021-12-04 04:38 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:


Attachments
Backtrace attempted to get from coredump (1.16 KB, text/plain)
2020-11-11 17:12 UTC, Claudius Ellsel
Details

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Description Claudius Ellsel 2020-10-16 18:41:36 UTC
SUMMARY
-> See title

STEPS TO REPRODUCE (what I did)
1. Log in to Plasma
2. Start an app (in my case Firefox)
3. Hover over the icon and the thumbnail

OBSERVED RESULT
Plasma crashed back to the login screen

EXPECTED RESULT
No crash

SOFTWARE/OS VERSIONS
Will follow.

ADDITIONAL INFORMATION
Not sure whether this is easily reproducible, just happened once for me.
I am happy to provide more details if I am told how to get them.
Comment 1 Claudius Ellsel 2020-10-16 18:53:29 UTC
Operating System: Manjaro Linux
KDE Plasma Version: 5.20.0
KDE Frameworks Version: 5.75.0
Qt Version: 5.15.1
Kernel Version: 5.8.14-1-MANJARO
OS Type: 64-bit
Processors: 4 × Intel® Xeon® CPU E3-1225 v3 @ 3.20GHz
Memory: 11.6 GiB of RAM
Graphics Processor: Mesa DRI Intel® HD Graphics P4600/P4700
Comment 2 Claudius Ellsel 2020-10-17 15:49:15 UTC
Just happened to me again I think in a session that has been running for a longer time.
Comment 3 Claudius Ellsel 2020-11-11 14:21:28 UTC
I also experienced this with the compiled session from master. Might be related to https://bugs.kde.org/show_bug.cgi?id=427826.

Since it crashes back to login, I guess the product should be kwin instead of just plasmashell, so changing accordingly.

I will try to get a backtrace when this happens now.
Comment 4 Claudius Ellsel 2020-11-11 14:41:46 UTC
Not tested on X11, probably only Wayland related.

Unfortunately I cannot reproduce it right now, so no backtrace.
Comment 5 Vlad Zahorodnii 2020-11-11 14:54:26 UTC
Do you have any coredumps?
Comment 6 Claudius Ellsel 2020-11-11 15:20:38 UTC
I don't know. I don't really know what that term means or how to get them.

After a short web search I found

https://blogs.kde.org/2009/03/27/setting-things-get-core-dumps
and https://wiki.archlinux.org/index.php/Core_dump

Still I don't have much idea how that works. Are they generated by default?

If yes I can look for them if you can tell me what places to look for.
Comment 7 Vlad Zahorodnii 2020-11-11 15:55:20 UTC
Run `coredumpctl list kwin_wayland` and check if there is any relevant core dump. If there is one, run `coredumpctl gdb <pid>` to get the backtrace.
Comment 8 Claudius Ellsel 2020-11-11 17:12:20 UTC
Created attachment 133241 [details]
Backtrace attempted to get from coredump

There was one. Unfortunately I seemed to have not enough space available when invoking `coredumpctl gdb <pid>`.

Right after that this bug described here happened again and I was back at SDDM.

Now the previous coredump from the compiled session was missing and only the one from the normal Plasma 5.20.2 session that just crashed is available (truncated).

I hope that is alright as well.

I tried to generate a backtrace, although it seems not really successful.
Comment 9 kde.org 2021-11-04 21:06:41 UTC
This bug report is quite old and unfortunately lacks proper debug information. Can you still reproduce this issue with KDE 5.23? If so, can you please install debugging packages following the info provided in  https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports, try to reproduce the bug and submit a backtrace with debugging information.
Comment 10 Bug Janitor Service 2021-11-19 04:39:09 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 11 Bug Janitor Service 2021-12-04 04:38:56 UTC
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now 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

Thank you for helping us make KDE software even better for everyone!