Bug 431385

Summary:	krunner makes the whole plasmashell hang/lag
Product:	[Plasma] krunner	Reporter:	David <kitt997>
Component:	general	Assignee:	Alexander Lohnau <alexander.lohnau>
Status:	RESOLVED DUPLICATE
Severity:	crash	CC:	nate, plasma-bugs-null
Priority:	NOR
Version First Reported In:	5.20.5
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description David 2021-01-10 10:33:42 UTC

SUMMARY
using krunner after update to plasma 5.20.5 leads to the whole plasmashell hanging, or terribly lagging. I have to killall krunner to get back to normal.

STEPS TO REPRODUCE
1. start plasma desktop
2. use krunner


OBSERVED RESULT
Desktop hangs, one CPU core at 100%


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Fedora 33 5.9.16-200.fc33.x86_64
(available in About System)
KDE Plasma Version: 5.20.5
KDE Frameworks Version: 5.78.0
Qt Version: 5.15.12

ADDITIONAL INFORMATION
The following lines are logged endlessly until I kill krunner:
gen 10 11:11:28 localhost.localdomain plasmashell[1280]: kf.service.services: The desktop entry file "/usr/share/applications/qemu.desktop" has>
gen 10 11:11:28 localhost.localdomain plasmashell[1280]: kf.service.sycoca: Invalid Service :  "/usr/share/applications/qemu.desktop"
gen 10 11:11:28 localhost.localdomain plasmashell[1280]: kf.service.services: The desktop entry file "/usr/share/applications/kde/kresources.de>
gen 10 11:11:28 localhost.localdomain krunner[2699]: kf.service.services: The desktop entry file "/usr/share/applications/qemu.desktop" has Typ>
gen 10 11:11:28 localhost.localdomain krunner[2699]: kf.service.sycoca: Invalid Service :  "/usr/share/applications/qemu.desktop"
gen 10 11:11:28 localhost.localdomain krunner[2699]: kf.service.services: The desktop entry file "/usr/share/applications/kde/kresources.deskto>

I don't have any new desktop shortcuts to blame on.
Note that the plasmashell entries above do appear only when there's krunner madding in the bg. This (to me) indicates some sort of relationship which you might understand.

Comment 1 Alexander Lohnau 2021-01-12 15:52:58 UTC

Seems like a duplicate of BUG 431385

*** This bug has been marked as a duplicate of bug 431393 ***

Comment 2 David 2021-01-14 09:07:30 UTC

(In reply to Alexander Lohnau from comment #1)
> Seems like a duplicate of BUG 431385
> 
> *** This bug has been marked as a duplicate of bug 431393 ***

I can confirm.