Bug 1914651 - Constant cpu load when anything is written on krunner. Only stops if I kill krunner.
Summary: Constant cpu load when anything is written on krunner. Only stops if I kill k...
Keywords:
Status: CLOSED UPSTREAM
Alias: None
Product: Fedora
Classification: Fedora
Component: kf5-krunner
Version: 33
Hardware: Unspecified
OS: Linux
unspecified
low
Target Milestone: ---
Assignee: Daniel Vrátil
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-01-10 14:30 UTC by Geraldo Simião
Modified: 2021-03-07 13:35 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-03-07 13:35:13 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)
How I disabled the plugin (graphically) (143.72 KB, image/png)
2021-01-15 13:03 UTC, Geraldo Simião
no flags Details

Description Geraldo Simião 2021-01-10 14:30:17 UTC
SUMMARY

Constant load (CPU activity) on krunner causing interface hangs.
Looks to be WEB SHORTCUTS PLUGIN related because it does not occur anymore when I disable that plugin (I tested with all others).
Just closing Krunner don't stop the problem, it only stops when krunner service is killed and reiniciated.


STEPS TO REPRODUCE
1. keep all plugins active on krunner 
2. write something in it, or open some document with it
3. close the opened aplication, close krunner

OBSERVED RESULT
Observe on ksysguard that krunner unit is conummig some cpu even all is done and closed.

EXPECTED RESULT
After krunner is closed, its unit should not consumme any cpu resources.

SOFTWARE/OS VERSIONS

OS: Fedora release 33 (Thirty Three) x86_64
Kernel: 5.10.5-200.fc33.x86_64 
DE: Plasma 5.20.5
KDE Frameworks Version: 5.78.0 
Qt Version: 5.15.2

kf5-krunner-5.78.0-1.fc33.x86_64 


On Fedora 33 KDE spin, X11 session.


ADDITIONAL INFORMATION

Occured firs time after that upgrade: https://bodhi.fedoraproject.org/updates/FEDORA-2021-5da509fd8e

When WEB SHORTCUTS PLUGIN is disabled all works as expected.

Already opened upstream too:
https://bugs.kde.org/show_bug.cgi?id=431393

Comment 1 Neal Becker 2021-01-12 18:13:54 UTC
How is web shortcuts plugin disabled?

Comment 2 Geraldo Simião 2021-01-15 13:03:21 UTC
Created attachment 1747801 [details]
How I disabled the plugin (graphically)

Comment 3 Geraldo Simião 2021-01-15 13:05:35 UTC
(In reply to Neal Becker from comment #1)
> How is web shortcuts plugin disabled?

I attached a print from the system settings window where one can disable the plugin.

Comment 4 Geraldo Simião 2021-01-15 14:34:51 UTC
Not sure if is this recent update ( https://bodhi.fedoraproject.org/updates/FEDORA-2021-ea19dabe82 or any other update on testing repo from the last four days), but today I re-enabled the web shortcuts plugin and until now the problem doesn't appears anymore. I'll continue monitoring krunner cpu usage for another two days to be sure the issue has really gone.

Comment 5 Geraldo Simião 2021-03-07 13:35:13 UTC
Bug fixed by the updates


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