[Libreoffice-bugs] [Bug 144728] Writer hangs when you try delete a 25x1000 table with numbering list in first column

Tue Oct 5 14:23:19 UTC 2021

https://bugs.documentfoundation.org/show_bug.cgi?id=144728

--- Comment #2 from Lucile <Lucile.Dolbeau at remedygames.com> ---
I have managed to repro the issue on :

Version: 7.2.1.2 (x64) / LibreOffice Community
Build ID: 87b77fad49947c1441b67c559c339af8f3517e22
CPU threads: 16; OS: Windows 10.0 Build 18363; UI render: Skia/Vulkan; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: CL

Description detail : 
After deleting a Table of 22columns x 978rows (Or 978columns and 22rows) or
above, Libreoffice will hang indefinitely. 
The hang will require windows/Task manager intervention to forcefully close the
program.

Upon relaunching Libreoffice, the option to recover the document is offered.
But if the table was containing any kind of data, everything will be lost by
the user when recovering the document. 
(if the deleted button was pushed by mistake, it can result in the loss of a
long work and sensitive data for the user) 

Testing attempts results : 

Deleting a table size of 22x978 or 978x22 will result in a hang , 
But Deleting any table bellow 22x978 (Like 21x978, 22x977 or 21x977 ...) will
behave as intended.

Other combinations resulting in a hang : 19x1132, 20x1076, 21x1026

The issue occurs no matter if the program is running fullscreen or windowed.

Rows and columns numbers can be swapped but the result of the test will not be
changed

I have narrowed down the repro steps to:  

1. Open a new Writer document
2. Insert a table of 22 columns x 978 rows (Or 978 columns and 22 rows)
3. Click anywhere inside the table
4. Click the Delete table icon on the Table toolbar => Writer hangs
indefinitely

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