| Summary: | FILEOPEN DOCX Specific chart makes Writer use all memory | ||
|---|---|---|---|
| Product: | LibreOffice | Reporter: | NISZ LibreOffice Team <libreoffice> |
| Component: | Chart | Assignee: | Not Assigned <libreoffice-bugs> |
| Status: | NEW --- | ||
| Severity: | normal | CC: | 79045_79045, nemeth, tundeth, varga.balazs3, xiscofauli |
| Priority: | medium | Keywords: | bibisected, bisected, perf, regression |
| Version: | 5.3.0.3 release | ||
| Hardware: | All | ||
| OS: | All | ||
| Whiteboard: | |||
| Crash report or crash signature: | Regression By: | ||
| Bug Depends on: | |||
| Bug Blocks: | 75057 | ||
| Attachments: |
Example file from Word
Screenshot of the original document side by side in Word and Writer 5.2 Opening the document in Writer Screenshot of the problem in Writer Opening the file in a 32 bit build Reproducer example made in Excel 13 |
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Description
NISZ LibreOffice Team
2020-07-27 12:22:25 UTC
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 |