Bug 451439

Summary: kwin crashes reliably when screen is locked
Product: [Plasma] kwin Reporter: Johannes <johannes>
Component: generalAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: crash CC: nate
Priority: NOR    
Version First Reported In: 5.24.3   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: stack trace
the system tray after unlocking

Description Johannes 2022-03-12 22:46:03 UTC 
Created attachment 147465 [details]
stack trace

SUMMARY

I'm experiencing an issue for about half a year now. When I leave my machine with the screen locked and log back in afterwards, I see dozens of messages that kwin had crashed.

***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols.
See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***


STEPS TO REPRODUCE
1. lock screen
2. leave machine for some time
3. log back in

OBSERVED RESULT
kwin has crashed; restarting plasmashell solves it.

EXPECTED RESULT
Everything would continue working.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 5.15.26/5.24.3
(available in About System)
KDE Plasma Version: 5.24.3
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.3

ADDITIONAL INFORMATION
Comment 1 Johannes 2022-03-15 18:02:42 UTC 
Created attachment 147517 [details]
the system tray after unlocking
Comment 2 Johannes 2022-03-16 11:02:17 UTC 
and this is what I see when I log in remotely:

johannes  866408  0.2  0.7 4041252 230320 ?      Tl   08:31   0:31 /usr/bin/kwin_x11 --crashes 1
johannes  873739  0.0  0.7 4054408 233832 ?      Tl   10:29   0:04 /usr/bin/kwin_x11 --crashes 1
johannes  875635  0.1  0.7 4046260 233464 ?      Tl   10:59   0:05 /usr/bin/kwin_x11 --crashes 1
johannes  877847  0.2  0.7 4046236 234136 ?      Tl   11:29   0:04 /usr/bin/kwin_x11 --crashes 1
Comment 3 Nate Graham 2022-03-25 23:01:02 UTC 
#4  0x00007fd7eac3a4ea _ZNK4KWin9Workspace10clientAreaENS_16clientAreaOptionEPKNS_14AbstractOutputEPKNS_14VirtualDesktopE (libkwin.so.5 + 0x24b4ea)

*** This bug has been marked as a duplicate of bug 448102 ***