Bug 445752

Summary: After unlocking screen, Plasmashell Crashes and must be restarted with kstart5 plasmashell
Product: [Plasma] plasmashell Reporter: sparkie <lg_ninjalo>
Component: generic-crashAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED WORKSFORME    
Severity: normal CC: nate
Priority: NOR    
Version First Reported In: 5.23.3   
Target Milestone: 1.0   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: backtrace

Description sparkie 2021-11-19 14:44:55 UTC 
Created attachment 143734 [details]
backtrace

SUMMARY
***
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. Log into Plasma Session
2. Hit CTRL + L to lock the screen
3. Unlock the screen

OBSERVED RESULT
Plasmashell crashes and has to be started with kstart5 plasmashell

EXPECTED RESULT
Plasmashell works

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Kubuntu
(available in About System)
KDE Plasma Version: 5.23.3
KDE Frameworks Version: 5.88.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION
nothing else to report
Comment 1 Nate Graham 2021-11-23 22:44:57 UTC 
Thank you for the bug report! Unfortunately the backtrace is incomplete and missing debug symbols that we need to figure out exactly what's going wrong:

[KCrash Handler]
#4  0x00007f528c5bb28f in QQuickItemPrivate::addToDirtyList() () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f528c5bfd8e in QQuickItemPrivate::dirty(QQuickItemPrivate::DirtyType) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f528c5d7158 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f528c5d7183 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f528c5d7183 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f528c5d7183 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f528c5dd964 in QQuickWindowPrivate::syncSceneGraph() () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f528c579cb0 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f528c57b97c in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007f528c57c6b7 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f528a996a71 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f528a51f927 in start_thread (arg=<optimized out>) at pthread_create.c:435
#16 0x00007f528a5af9e4 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:100

Furthermore none of the unsymbolicated frames indicate that the crash happened in KDE code. I can't reproduce the issue, so unfortunately there does not seem like a way to figure out what's going on here and fix the bug. :(