https://bugs.documentfoundation.org/show_bug.cgi?id=101284
Bug ID: 101284
Summary: Resizing windows sometimes doesn't throttle and kills
the CPU at 100% usage on all cores
Product: LibreOffice
Version: 5.2.0.1 rc
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: LibreOffice
Assignee: libreoffice-bugs@lists.freedesktop.org
Reporter: ddascalescu+freedesk...@gmail.com
1. Launch LibreCalc 5.2.0.1
2. Open the attachment from bug 100709
3. While the spreadsheet is opening (which takes a pretty long while), drag
around two or more corners of the window to resize it.
Notice how at some point, the resizing handler keeps firing with every mouse
move.
It could be argued this is a corner case, but it's not. After the resizing has
stabilized,
4. Open another file (I could reproduce the issue with a CSV with less than 20
lines),
5. Resize that window after the file has finished loading (a very legitimate
use case).
You may see the very same CPU-killing behavior as seen at the end of the
screencast.
I've seen the second part (completely normal use case) of the bug many times,
but it appears it takes working with Calc for a number of minutes before the
issue appears. Steps 1-3 simply accelerate the reproduction.
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