https://bugs.kde.org/show_bug.cgi?id=451973
Bug ID: 451973
Summary: kwin gets stuck in an infinite loop after using Walk
Through Desktops shortcut
Product: kwin
Version: 5.24.3
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: tabbox
Assignee: kwin-bugs-n...@kde.org
Reporter: leeharple+...@gmail.com
Target Milestone: ---
Created attachment 147777
--> https://bugs.kde.org/attachment.cgi?id=147777&action=edit
kwin gdb backtrace
SUMMARY
Using the "Walk Through Desktops" shortcut after deleting a virtual desktop
causes kwin to get stuck in an infinite loop.
STEPS TO REPRODUCE
1. Assign a keyboard shortcut for KWin's "Walk Through Desktops" shortcut.
1. The current virtual desktop is "Desktop start".
2. Add a new virtual desktop ("Desktop new"). The current virtual desktop
changes to "Desktop new".
3. Remove the "Desktop new" virtual desktop. The current virtual desktop
switches back to "Desktop start".
4. Use the "Walk Through Desktops" keyboard shortcut. Sometimes I must use the
shortcut a few times before kwin hangs.
OBSERVED RESULT
The system becomes unresponsive. The memory usage of kwin starts to grow, and
doesn't stop. kwin seems to get stuck in the do/while loop of
KWin::TabBox::ClientModel::createClientList(int, bool).
EXPECTED RESULT
The last recently used virtual desktop should become active.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.24.3
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3
Graphics Platform: X11
ADDITIONAL INFORMATION
I've attached a backtrace with debug symbols. In the backtrace I started with 3
virtual desktops, and then added and deleted a 4th.
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