https://bugs.kde.org/show_bug.cgi?id=469707
Bug ID: 469707
Summary: KDiff3 bugs trigger kwin crash in updateClientArea()
Classification: Plasma
Product: kwin
Version: 5.27.5
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: matthewtresc...@gmail.com
Target Milestone: ---
Created attachment 158912
--> https://bugs.kde.org/attachment.cgi?id=158912&action=edit
Backtrace via coredumpctl
SUMMARY
Some bugs in KDiff3 are able to crash KWin when attempting to close a KDiff3
dialog that is not showing up properly.
STEPS TO REPRODUCE
1. Open KDiff3
2. Start a directory comparison.
3. Pop the "Directory merge" panel out into a separate window (<> icon in upper
right corner)
4. Close KDiff3
5. Open KDiff3
6. Start a directory merge
7. The directory merge dialog appears in the Plasma taskbar/task-manager.
8. Hover the cursor over the taskbar entry for the directory merge. Observe
that no preview appears.
9. Click the X button in the taskbar tooltip to close the (invisible) directory
merge window.
10. Re-focus KDiff3 by clicking on its taskbar entry.
11. The taskbar entry for the directory merge reappears
12. Click the X button in the taskbar tooltip again.
13. If the taskbar entry for the directory merge did not reappear, click the X
button in the taskbar tooltip for the merge info dialog.
OBSERVED RESULT
KWin crashes
EXPECTED RESULT
KWin does not crash
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: openSUSE Tumbleweed
(available in About System)
KDE Plasma Version: 5.27.5
KDE Frameworks Version: 5.105.0
Qt Version: 5.15.9
ADDITIONAL INFORMATION
KDiff3 version: 1.10.2
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