https://bugs.kde.org/show_bug.cgi?id=436654
Bug ID: 436654
Summary: Task Manager crashes when hovering combined tasks
Product: plasmashell
Version: 5.21.4
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: Task Manager and Icons-Only Task Manager
Assignee: h...@kde.org
Reporter: mequer...@gmail.com
CC: plasma-b...@kde.org
Target Milestone: 1.0
SUMMARY
If a task has multiple windows and they're combined, hovering over several
tasks causes plasmashell to take up 99-100% of a CPU core and it either hangs
or crashes plasmashell, or crashes the entire desktop.
STEPS TO REPRODUCE
1. Task Manager Settings -> Behavior -> Combine into single button (enabled)
2. Open a program that has multiple windows
3. Hover multiple times over the task manager
OBSERVED RESULT
Hang or crash of plasmashell, or crash of desktop.
SOFTWARE/OS VERSIONS
Linux: Fedora 34 (kernel 5.11.17 x86_64)
KDE Plasma Version: 5.21.4
KDE Frameworks Version: 5.80.0
Qt Version: 5.15.2
ADDITIONAL INFORMATION
I recorded a video of the bug: https://youtu.be/psYGavxnnOI
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