Bug 127991 - CPU will run utilize a single core for ever after holding space with automatic spell check enabled
Summary: CPU will run utilize a single core for ever after holding space with automati...
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
Version:
(earliest affected)
4.3 all versions
Hardware: All All
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: Main-Loop
  Show dependency treegraph
 
Reported: 2019-10-06 16:21 UTC by Telesto
Modified: 2022-09-05 03:36 UTC (History)
3 users (show)

See Also:
Crash report or crash signature:


Attachments
perf flamegraph (80.60 KB, application/x-bzip)
2019-10-06 19:10 UTC, Julien Nabet
Details

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Description Telesto 2019-10-06 16:21:58 UTC
Description:
CPU will run utilize a single core for ever after holding space with automatic spell check enabled

Steps to Reproduce:
1. Open attachment 144817 [details]
2. Make sure the Dutch language dictionary to be installed
3. Press space between yellow and red marking and hold it until red marking goes to the next line
4. A single core will be used forever

Actual Results:
CPU usage starts and never drops back

Expected Results:
CPU usage should drop after releasing space


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 6.4.0.0.alpha0+ (x86)
Build ID: c45d477b0a0038d9c25176cf7cff299e5ddf3a7a
CPU threads: 4; OS: Windows 6.3; UI render: default; VCL: win; 
TinderBox: Win-x86@42, Branch:master, Time: 2019-09-30_05:06:55
Locale: nl-NL (nl_NL); UI-Language: en-US
Calc: CL
Comment 1 Julien Nabet 2019-10-06 19:10:31 UTC
Created attachment 154783 [details]
perf flamegraph

On pc Debian x86-64 with master sources updated today, I could reproduce this.
Comment 2 Xisco Faulí 2019-10-07 08:57:07 UTC
Can be reproduced even without the dutch language dictionary installed

Version: 6.4.0.0.alpha0+
Build ID: 52cda5c5ae426761ccbdb4f20419098eab195303
CPU threads: 4; OS: Linux 4.15; UI render: default; VCL: gtk3; 
Locale: ca-ES (ca_ES.UTF-8); UI-Language: en-US
Calc: threaded
Comment 3 Xisco Faulí 2019-10-07 09:01:33 UTC
Also reproduced in

Version: 4.3.0.0.alpha1+
Build ID: c15927f20d4727c3b8de68497b6949e72f9e6e9e
Comment 4 Telesto 2019-10-08 20:22:10 UTC
(In reply to Xisco Faulí from comment #3)
> Also reproduced in
> 
> Version: 4.3.0.0.alpha1+
> Build ID: c15927f20d4727c3b8de68497b6949e72f9e6e9e

Odd, I don't reproduce this with
Versie: 4.4.7.2 
Build ID: f3153a8b245191196a4b6b9abd1d0da16eead600
Locale: nl_NL

nor with
Version: 5.2.5.0.0+
Build ID: a4d4fbeb623013f6377b30711ceedb38ea4b49f8
CPU Threads: 4; OS Version: Windows 6.2; UI Render: default; 
TinderBox: Win-x86@62-merge-TDF, Branch:libreoffice-5-2, Time: 2016-12-24_14:43:55
Locale: nl-NL (nl_NL); Calc: CL

I would assume it to be a recent regression. Probably related to the initial report - bug 119821 - about CPU usage while holding SPACE. Now CPU usage never stops
Comment 5 QA Administrators 2022-09-05 03:36:25 UTC
Dear Telesto,

To make sure we're focusing on the bugs that affect our users today, LibreOffice QA is asking bug reporters and confirmers to retest open, confirmed bugs which have not been touched for over a year.

There have been thousands of bug fixes and commits since anyone checked on this bug report. During that time, it's possible that the bug has been fixed, or the details of the problem have changed. We'd really appreciate your help in getting confirmation that the bug is still present.

If you have time, please do the following:

Test to see if the bug is still present with the latest version of LibreOffice from https://www.libreoffice.org/download/

If the bug is present, please leave a comment that includes the information from Help - About LibreOffice.
 
If the bug is NOT present, please set the bug's Status field to RESOLVED-WORKSFORME and leave a comment that includes the information from Help - About LibreOffice.

Please DO NOT

Update the version field
Reply via email (please reply directly on the bug tracker)
Set the bug's Status field to RESOLVED - FIXED (this status has a particular meaning that is not 
appropriate in this case)


If you want to do more to help you can test to see if your issue is a REGRESSION. To do so:
1. Download and install oldest version of LibreOffice (usually 3.3 unless your bug pertains to a feature added after 3.3) from https://downloadarchive.documentfoundation.org/libreoffice/old/

2. Test your bug
3. Leave a comment with your results.
4a. If the bug was present with 3.3 - set version to 'inherited from OOo';
4b. If the bug was not present in 3.3 - add 'regression' to keyword


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Warm Regards,
QA Team

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