Bug 452164

Summary:	100% CPU usage and soft lock requiring restart of plasmashell after entering five characters into Kicker
Product:	[Plasma] plasmashell	Reporter:	zepylos
Component:	generic-performance	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	nate
Priority:	NOR
Version First Reported In:	5.24.4
Target Milestone:	1.0
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description zepylos 2022-04-02 05:24:44 UTC

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
***
Found this while trying to launch Spectacle. Opening Kicker and typing "spec" launches fine. "Spect" hardlocks plasmashell.

STEPS TO REPRODUCE
1. Open Kicker
2. Type five characters in.
3. Immediately hardlocks plasmashell and takes it up to 100% CPU

OBSERVED RESULT
Hardlock, needs to be killed and restarted with 100% CPU usage on a core noted on top.

EXPECTED RESULT
Typing another character should be fine.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma:
(available in About System)
KDE Plasma Version: 5.24.4
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3

ADDITIONAL INFORMATION
Checking plasma logs was not helpful because it just hangs and does not write to them.

Comment 1 Nate Graham 2022-04-06 17:00:01 UTC

Weird, cannot reproduce.

Comment 2 Nate Graham 2024-08-28 03:52:42 UTC

Still cannot reproduce in Plasma 6. Are you able to, by any chance?

Comment 3 Bug Janitor Service 2024-09-12 03:47:02 UTC

🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

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

Comment 4 Bug Janitor Service 2024-09-27 03:47:27 UTC

🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.