Created attachment 163622 [details] Example file from Word Attached user made file contains a column chart. Opening this file in Writer causes the processor and memory use to skyrocket until memory is exhausted. Steps to reproduce: 1. Open attached file Actual results: Writer stops answering, uses huge amount of memory and after a few minutes opens the document without the chart data, with only an empty chart. Expected results: File opens correctly. LibreOffice details: Version: 7.1.0.0.alpha0+ (x64) Build ID: <buildversion> CPU szálak: 4; OS: Windows 6.3 Build 9600; Felületmegjelenítés: alapértelmezett; VCL: win Locale: hu-HU (hu_HU); UI: hu-HU Calc: CL Also happens in: Version: 5.3.0.3 Build ID: 7074905676c47b82bbcfbea1aeefc84afe1c50e1 CPU Threads: 4; OS Version: Windows 6.2; UI Render: GL; Layout Engine: new; Locale: en-US (hu_HU); Calc: CL But not yet in: Version: 5.2.0.4 Build ID: 066b007f5ebcc236395c7d282ba488bca6720265 CPU Threads: 4; OS Version: Windows 6.2; UI Render: default; Locale: en-US (hu_HU) Additional Information: Bibisected using bibisect-win32-5.3 to: URL: https://cgit.freedesktop.org/libreoffice/core/commit/?id=4bcf1872bbe9db1388769485a7e4c0cbcce3d53c author Jean-Tiare Le Bigot <admin@jtlebi.fr> 2016-10-13 23:43:41 +0200 committer Markus Mohrhard <markus.mohrhard@googlemail.com> 2016-11-06 06:02:27 +0000 chartx: fix sparse chart import
Created attachment 163623 [details] Screenshot of the original document side by side in Word and Writer 5.2
Created attachment 163624 [details] Opening the document in Writer
Created attachment 163625 [details] Screenshot of the problem in Writer
Created attachment 163626 [details] Opening the file in a 32 bit build Version: 7.1.0.0.alpha0+ (x86) Build ID: 0d45380c99c7200075d01860a2315d0ddb450f1c CPU threads: 4; OS: Windows 6.3 Build 9600; UI render: Skia/Raster; VCL: win Locale: hu-HU (hu_HU); UI: en-US Calc: CL gives a very different error message
Created attachment 165545 [details] Reproducer example made in Excel 13 Here is an example for how to break this: - In Excel create a chart with some data - In the Select Data Source dialog of Excel edit the range for the horizontal (category) axis. In the small Axis Labels dialog go to A2 and select a range until the end of data by pressing Ctrl-Shift-DOWN. But oh no, press DOWN twice so it does not select to the end of data, but to the end of the sheet. So the field shows =Munka1!$A$2:$A$1048576 - no problem, Excel can handle this just fine. - Copy the resulting chart to Word. Save as DOCX. This will generate something like this in chart1.xml: <c:cat> <c:numRef> <c:f>Munka1!$A$2:$A$1048576</c:f> <c:numCache> <c:formatCode>d\-mmm</c:formatCode> <c:ptCount val="1048575"/> Now Writer uses this ptCount value to try to determine how many rows the internal data table of the chart should have. 1 million rows is too much for it, so we should not believe this number to be true. This happens on MSO 2010 / 13. The actual number of c:pt tags could be a more accurate estimate.
reproduced in Version: 7.2.0.0.alpha0+ Build ID: 84af20ef3ea72190784e9e7be820684c2558ba8c CPU threads: 4; OS: Linux 5.7; UI render: default; VCL: gtk3 Locale: en-US (en_US.UTF-8); UI: en-US Calc: threaded
I saw two memory leaks while saw opening process , both around 1,8 Gb LO opens the file, but chart is empty So still repro in Version: 7.3.0.0.alpha0+ (x64) / LibreOffice Community Build ID: 1516711eb7861a08cc9fd19ec867360737a6d070 CPU threads: 4; OS: Windows 10.0 Build 19043; UI render: Skia/Vulkan; VCL: win Locale: ru-RU (ru_RU); UI: en-US Calc: threaded
Still repro in Version: 7.4.0.0.alpha0+ (x64) / LibreOffice Community Build ID: 1be170d0629cf761f0ee4173007a3c021966546e CPU threads: 4; OS: Windows 6.1 Service Pack 1 Build 7601; UI render: Skia/Raster; VCL: win Locale: ru-RU (ru_RU); UI: en-US Calc: CL
Repro in Version: 7.6.4.1 (X86_64) / LibreOffice Community Build ID: 60(Build:1) CPU threads: 4; OS: Linux 6.1; UI render: default; VCL: kf5 (cairo+wayland) Locale: en-GB (en_US.UTF-8); UI: en-US 7.6.4-2 Calc: threaded